@article{campbell_lackmann_molina_parker_2024, title={Severe Convective Storms in Limited Instability Organized by Pattern and Distribution}, volume={39}, ISSN={["1520-0434"]}, DOI={10.1175/WAF-D-23-0130.1}, abstractNote={Abstract}, number={1}, journal={WEATHER AND FORECASTING}, author={Campbell, Trevor A. and Lackmann, Gary M. and Molina, Maria J. and Parker, Matthew D.}, year={2024}, month={Jan}, pages={217–240} } @article{goldacker_parker_2023, title={Assessing the Comparative Effects of Storm-Relative Helicity Components within Right-Moving Supercell Environments}, volume={80}, ISSN={["1520-0469"]}, DOI={10.1175/JAS-D-22-0253.1}, abstractNote={Abstract}, number={12}, journal={JOURNAL OF THE ATMOSPHERIC SCIENCES}, author={Goldacker, Nicholas A. and Parker, Matthew D.}, year={2023}, month={Dec}, pages={2805–2822} } @article{peters_coffer_parker_nowotarski_mulholland_nixon_allen_2023, title={Disentangling the Influences of Storm-Relative Flow and Horizontal Streamwise Vorticity on Low-Level Mesocyclones in Supercells}, volume={80}, ISSN={["1520-0469"]}, DOI={10.1175/JAS-D-22-0114.1}, abstractNote={Abstract}, number={1}, journal={JOURNAL OF THE ATMOSPHERIC SCIENCES}, author={Peters, John M. M. and Coffer, Brice E. E. and Parker, Matthew D. D. and Nowotarski, Christopher J. J. and Mulholland, Jake P. P. and Nixon, Cameron J. J. and Allen, John T. T.}, year={2023}, month={Jan}, pages={129–149} } @article{parker_2023, title={How Well Must Surface Vorticity Be Organized for Tornadogenesis?}, volume={80}, ISSN={["1520-0469"]}, DOI={10.1175/JAS-D-22-0195.1}, abstractNote={Abstract}, number={6}, journal={JOURNAL OF THE ATMOSPHERIC SCIENCES}, author={Parker, Matthew D.}, year={2023}, month={Jun}, pages={1433–1448} } @article{loeffler_kumjian_markowski_coffer_parker_2023, title={Investigating the Relationship between Polarimetric Radar Signatures of Hydrometeor Size Sorting and Tornadic Potential in Simulated Supercells}, volume={151}, ISSN={["1520-0493"]}, DOI={10.1175/MWR-D-22-0228.1}, abstractNote={Abstract}, number={7}, journal={MONTHLY WEATHER REVIEW}, author={Loeffler, Scott D. and Kumjian, Matthew R. and Markowski, Paul M. and Coffer, Brice E. and Parker, Matthew D.}, year={2023}, month={Jul}, pages={1863–1884} } @article{coffer_parker_peters_wade_2023, title={Supercell Low-Level Mesocyclones: Origins of Inflow and Vorticity}, volume={151}, ISSN={["1520-0493"]}, DOI={10.1175/MWR-D-22-0269.1}, abstractNote={Abstract}, number={9}, journal={MONTHLY WEATHER REVIEW}, author={Coffer, Brice E. and Parker, Matthew D. and Peters, John M. and Wade, Andrew R.}, year={2023}, month={Sep}, pages={2205–2232} } @article{coffer_parker_2022, title={Infrasound signals in simulated nontornadic and pre-tornadic supercells}, volume={151}, ISSN={["1520-8524"]}, DOI={10.1121/10.0009400}, abstractNote={There has been increased interest in improving severe weather detection by supplementing the conventional operational radar network with an infrasound observation network, which may be able to detect distinct sub-audible signatures from tornadic supercells. While there is evidence that tornadic thunderstorms exhibit observable infrasound signals, what is not well-understood is whether these infrasound signals are unique to tornadic supercells (compared to nontornadic supercells) or whether there is useful signal prior to tornadogenesis, which would be most relevant to forecasters. Using simulations of supercells, tailored to represent acoustic waves with frequencies from 0.1 to 2 Hz, spectral analysis reveals that both nontornadic and pre-tornadic supercells produce strikingly similar sound pressure levels at the surface, even in close spatial proximity to the storms (less than 20 km). Sensitivity tests employing varying microphysics schemes also show similar acoustic emissions between supercells. Riming of supercooled water droplets in the upper-troposphere is the sole mechanism generating high-frequency pressure waves in supercells prior to tornadogenesis or during tornadogenesis-failure; however, riming occurs continuously in mature nontornadic and tornadic supercells. Our simulations found no clear evidence that infrasound produced by supercells prior to tornado formation (compared to nontornadic supercells) is sufficiently distinct to improve lead-time of tornado warnings.}, number={2}, journal={JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA}, author={Coffer, Brice E. and Parker, Matthew D.}, year={2022}, month={Feb}, pages={939–954} } @article{lovell_parker_2022, title={Simulated QLCS Vortices in a High-Shear, Low-CAPE Environment}, volume={37}, ISSN={["1520-0434"]}, DOI={10.1175/WAF-D-21-0133.1}, abstractNote={Abstract}, number={6}, journal={WEATHER AND FORECASTING}, author={Lovell, Levi T. and Parker, Matthew D.}, year={2022}, month={Jun}, pages={989–1012} } @article{wade_parker_2021, title={Dynamics of Simulated High-Shear, Low-CAPE Supercells}, volume={78}, ISSN={["1520-0469"]}, DOI={10.1175/JAS-D-20-0117.1}, abstractNote={Abstract}, number={5}, journal={JOURNAL OF THE ATMOSPHERIC SCIENCES}, author={Wade, Andrew R. and Parker, Matthew D.}, year={2021}, month={May}, pages={1389–1410} } @article{goldacker_parker_2021, title={Low-Level Updraft Intensification in Response to Environmental Wind Profiles}, volume={78}, ISSN={["1520-0469"]}, DOI={10.1175/JAS-D-20-0354.1}, abstractNote={Abstract}, number={9}, journal={JOURNAL OF THE ATMOSPHERIC SCIENCES}, author={Goldacker, Nicholas A. and Parker, Matthew D.}, year={2021}, month={Sep}, pages={2763–2781} } @article{parker_2021, title={Self-Organization and Maintenance of Simulated Nocturnal Convective Systems from PECAN}, volume={149}, ISSN={["1520-0493"]}, DOI={10.1175/MWR-D-20-0263.1}, abstractNote={Abstract}, number={4}, journal={MONTHLY WEATHER REVIEW}, author={Parker, Matthew D.}, year={2021}, month={Apr}, pages={999–1022} } @article{sherburn_parker_2021, title={The development of severe vortices within simulated high-shear low-CAPE convection (vol 147, pg 2189, 2019)}, volume={149}, ISSN={["1520-0493"]}, DOI={10.1175/MWR-D-20-0416.1}, abstractNote={Through another research effort, it was recently discovered that the wind profiles used to initialize the Cloud Model 1 (CM1) simulations in Sherburn and Parker (2019) were specified with incorrect units (mistaking meters per second for knots).The following corrected versions of Fig. 1 and Table 1 represent the actual initial conditions for the simulations reported in Sherburn and Parker (2019).The caption for Fig. 3 in Sherburn and Parker (2019) should also be modified to read, ''Base-state kinematic profiles for the (left) increased low-level shear and (right) decreased low-level shear simulations.Hodograph axes are labeled in m s 21 .''The modeling results shown and interpreted by Sherburn and Parker ( 2019) remain true to the CM1 simulations that they actually performed.These results are internally consistent with one another and do indeed address the modeled convection's sensitivities to changes in vertical wind shear and stability, which was the study's purpose.However, the initial environments in the model contained approximately twice as much vertical shear as intended.}, number={4}, journal={MONTHLY WEATHER REVIEW}, author={Sherburn, Keith D. and Parker, Matthew D.}, year={2021}, month={Apr}, pages={1189–1191} } @article{andersen_abernathy_berlinsky_bolton_booker_borski_brown_cerino_ciaramella_clark_et al._2021, title={The status of striped bass, Morone saxatilis, as a commercially ready species for U.S. marine aquaculture}, volume={52}, ISSN={0893-8849 1749-7345}, url={http://dx.doi.org/10.1111/jwas.12812}, DOI={10.1111/jwas.12812}, abstractNote={Abstract}, number={3}, journal={Journal of the World Aquaculture Society}, publisher={Wiley}, author={Andersen, Linnea K. and Abernathy, Jason and Berlinsky, David L. and Bolton, Greg and Booker, Matthew M. and Borski, Russell J. and Brown, Travis and Cerino, David and Ciaramella, Michael and Clark, Robert W. and et al.}, year={2021}, month={May}, pages={710–730} } @article{coniglio_parker_2020, title={Insights into Supercells and Their Environments from Three Decades of Targeted Radiosonde Observations}, volume={148}, ISSN={["1520-0493"]}, DOI={10.1175/MWR-D-20-0105.1}, abstractNote={Abstract}, number={12}, journal={MONTHLY WEATHER REVIEW}, author={Coniglio, Michael C. and Parker, Matthew D.}, year={2020}, month={Dec}, pages={4893–4915} } @article{coffer_taszarek_parker_2020, title={Near Ground Wind Profiles of Tornadic and Nontornadic Environments in the United States and Europe from ERAS Reanalyses}, volume={35}, ISSN={["1520-0434"]}, DOI={10.1175/WAF-D-20-0153.1}, abstractNote={Abstract}, number={6}, journal={WEATHER AND FORECASTING}, author={Coffer, Brice E. and Taszarek, Mateusz and Parker, Matthew D.}, year={2020}, month={Dec}, pages={2621–2638} } @article{parker_borchardt_miller_ziegler_2020, title={Simulated Evolution and Severe Wind Production by the 25-26 June 2015 Nocturnal MCS from PECAN}, volume={148}, ISSN={["1520-0493"]}, DOI={10.1175/MWR-D-19-0072.1}, abstractNote={Abstract}, number={1}, journal={MONTHLY WEATHER REVIEW}, author={Parker, Matthew D. and Borchardt, Brett S. and Miller, Rachel L. and Ziegler, Conrad L.}, year={2020}, month={Jan}, pages={183–209} } @article{hitchcock_schumacher_herman_coniglio_parker_ziegler_2019, title={Evolution of Pre- and Postconvective Environmental Profiles from Mesoscale Convective Systems during PECAN}, volume={147}, ISSN={["1520-0493"]}, DOI={10.1175/MWR-D-18-0231.1}, abstractNote={Abstract}, number={7}, journal={MONTHLY WEATHER REVIEW}, author={Hitchcock, Stacey M. and Schumacher, Russ S. and Herman, Gregory R. and Coniglio, Michael C. and Parker, Matthew D. and Ziegler, Conrad L.}, year={2019}, month={Jul}, pages={2329–2354} } @article{sherburn_parker_davenport_sirico_blaes_black_mclamb_mugrage_rackliffe_2019, title={Partnering Research, Education, and Operations via a Cool Season Severe Weather Soundings Program}, volume={100}, ISSN={["1520-0477"]}, DOI={10.1175/BAMS-D-17-0186.1}, abstractNote={Abstract}, number={2}, journal={BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY}, author={Sherburn, Keith D. and Parker, Matthew D. and Davenport, Casey E. and Sirico, Richard A. and Blaes, Jonathan L. and Black, Brandon and McLamb, Shaelyn E. and Mugrage, Michael C. and Rackliffe, Ryan M.}, year={2019}, month={Feb}, pages={307–320} } @article{sherburn_parker_2019, title={The Development of Severe Vortices within Simulated High-Shear, Low-CAPE Convection}, volume={147}, ISSN={["1520-0493"]}, DOI={10.1175/MWR-D-18-0246.1}, abstractNote={Abstract}, number={6}, journal={MONTHLY WEATHER REVIEW}, author={Sherburn, Keith D. and Parker, Matthew D.}, year={2019}, month={Jun}, pages={2189–2216} } @article{coffer_parker_thompson_smith_jewell_2019, title={Using Near-Ground Storm Relative Helicity in Supercell Tornado Forecasting}, volume={34}, ISSN={["1520-0434"]}, DOI={10.1175/WAF-D-19-0115.1}, abstractNote={Abstract}, number={5}, journal={WEATHER AND FORECASTING}, author={Coffer, Brice E. and Parker, Matthew D. and Thompson, Richard L. and Smith, Bryan T. and Jewell, Ryan E.}, year={2019}, month={Oct}, pages={1417–1435} } @article{campbell_parker_bennett_yusuf_al-rashdi_lustik_li_abolhasani_2018, title={Continuous Synthesis of Monodisperse Yolk-Shell Titania Microspheres}, volume={30}, ISSN={["1520-5002"]}, url={https://doi.org/10.1021/acs.chemmater.8b04349}, DOI={10.1021/acs.chemmater.8b04349}, abstractNote={A microfluidic strategy is developed for continuous synthesis of monodisperse yolk–shell titania microspheres. The continuous flow synthesis of titania microparticles is achieved by decoupling the microdroplet formation and interfacial hydrolysis reaction steps by utilizing a polar aprotic solvent as the continuous phase in the microreactor. The decoupling of the precursor microdroplet formation and the hydrolysis reaction allows titania synthesis throughputs an order of magnitude higher than those previously reported in a single-channel flow reactor (∼0.1 g/h calcined microparticles), without affecting the microreactor lifetime due to clogging. Flow synthesis and dynamics across a broad range of precursor flow rates are examined, while effects of flow synthesis parameters, including the precursor to continuous phase flow rate ratio, precursor composition, and calcination temperature on the surface morphology, size, and composition of the resulting titania microparticles, are explored in detail. Titania m...}, number={24}, journal={CHEMISTRY OF MATERIALS}, publisher={American Chemical Society (ACS)}, author={Campbell, Zachary S. and Parker, Matthew and Bennett, Jeffrey A. and Yusuf, Seif and Al-Rashdi, Amur K. and Lustik, Jacob and Li, Fanxing and Abolhasani, Milad}, year={2018}, month={Dec}, pages={8948–8958} } @article{king_parker_sherburn_lackmann_2017, title={Rapid Evolution of Cool Season, Low-CAPE Severe Thunderstorm Environments}, volume={32}, ISSN={["1520-0434"]}, DOI={10.1175/waf-d-16-0141.1}, abstractNote={Abstract}, number={2}, journal={WEATHER AND FORECASTING}, author={King, Jessica R. and Parker, Matthew D. and Sherburn, Keith D. and Lackmann, Gary M.}, year={2017}, month={Apr}, pages={763–779} } @article{geerts_parsons_zieglgler_weckwerth_biggerstaff_clark_coniglio_demoz_ferrare_gallus_et al._2017, title={The 2015 Plains Elevated Convection at Night field project}, volume={98}, number={4}, journal={Bulletin of the American Meteorological Society}, author={Geerts, B. and Parsons, D. and Zieglgler, C. L. and Weckwerth, T. M. and Biggerstaff, M. I. and Clark, R. D. and Coniglio, M. C. and Demoz, B. B. and Ferrare, R. A. and Gallus, W. A. and et al.}, year={2017}, pages={767–786} } @article{macintosh_parker_2017, title={The 6 May 2010 Elevated Supercell during VORTEX2}, volume={145}, ISSN={["1520-0493"]}, DOI={10.1175/mwr-d-16-0329.1}, abstractNote={ An elevated supercell from the second Verification of the Origins of Rotation in Tornadoes Experiment (VORTEX2) on 6 May 2010 is investigated. Observations show that the supercell formed over a stable inversion and was likely decoupled from the surface. Quintessential features of a supercell were present, including a hook echo (albeit bent anticyclonically) and midlevel mesocyclone, and the storm was quasi steady during the observing period. A weak surface cold pool formed, but it was apparently devoid of air originating from midlevels. Idealized modeling using near-storm soundings is employed to clarify the structure and maintenance of this supercell. The simulated storm is decoupled from the surface by the stable layer. Additionally, the reflectivity structure of the simulated supercell is strikingly similar to the observed storm, including its peculiar anticyclonic-curving hook echo. Air parcels above 1 km reached their LFCs as a result of the simulated supercell’s own dynamic lifting, which likely maintained the main updraft throughout its life. In contrast, low-level air in the simulation followed an “up–down” trajectory, being lifted dynamically within the stable layer before becoming strongly negatively buoyant and descending back to the surface. Up–down parcels originating in the lowest 100 m are shown to be a potential driver of severe surface winds. The complementary observations and simulations highlight a range of processes that may act in concert to maintain supercells in environments lacking surface-based CAPE. }, number={7}, journal={MONTHLY WEATHER REVIEW}, author={MacIntosh, Christopher W. and Parker, Matthew D.}, year={2017}, month={Jul}, pages={2635–2657} } @article{peters_nielsen_parker_hitchcock_schumacher_2017, title={The Impact of Low-Level Moisture Errors on Model Forecasts of an MCS Observed during PECAN}, volume={145}, ISSN={["1520-0493"]}, DOI={10.1175/mwr-d-16-0296.1}, abstractNote={ This article investigates errors in forecasts of the environment near an elevated mesoscale convective system (MCS) in Iowa on 24–25 June 2015 during the Plains Elevated Convection at Night (PECAN) field campaign. The eastern flank of this MCS produced an outflow boundary (OFB) and moved southeastward along this OFB as a squall line. The western flank of the MCS remained quasi stationary approximately 100 km north of the system’s OFB and produced localized flooding. A total of 16 radiosondes were launched near the MCS’s eastern flank and 4 were launched near the MCS’s western flank. }, number={9}, journal={MONTHLY WEATHER REVIEW}, author={Peters, John M. and Nielsen, Erik R. and Parker, Matthew D. and Hitchcock, Stacey M. and Schumacher, Russ S.}, year={2017}, month={Sep}, pages={3599–3624} } @article{coffer_parker_dahl_wicker_clark_2017, title={Volatility of Tornadogenesis: An Ensemble of Simulated Nontornadic and Tornadic Supercells in VORTEX2 Environments}, volume={145}, ISSN={["1520-0493"]}, DOI={10.1175/mwr-d-17-0152.1}, abstractNote={ Despite an increased understanding of the environments that favor tornado formation, a high false-alarm rate for tornado warnings still exists, suggesting that tornado formation could be a volatile process that is largely internal to each storm. To assess this, an ensemble of 30 supercell simulations was constructed based on small variations to the nontornadic and tornadic environmental profiles composited from the second Verification of the Origins of Rotation in Tornadoes Experiment (VORTEX2). All simulations produce distinct supercells despite occurring in similar environments. Both the tornadic and nontornadic ensemble members possess ample subtornadic surface vertical vorticity; the determinative factor is whether this vorticity can be converged and stretched by the low-level updraft. Each of the 15 members in the tornadic VORTEX2 ensemble produces a long-track, intense tornado. Although there are notable differences in the precipitation and near-surface buoyancy fields, each storm features strong dynamic lifting of surface air with vertical vorticity. This lifting is due to a steady low-level mesocyclone, which is linked to the ingestion of predominately streamwise environmental vorticity. In contrast, each nontornadic VORTEX2 simulation features a supercell with a disorganized low-level mesocyclone, due to crosswise vorticity in the lowest few hundred meters in the nontornadic environment. This generally leads to insufficient dynamic lifting and stretching to accomplish tornadogenesis. Even so, 40% of the nontornadic VORTEX2 ensemble members become weakly tornadic. This implies that chaotic within-storm details can still play a role and, occasionally, lead to marginally tornadic vortices in suboptimal storms. }, number={11}, journal={MONTHLY WEATHER REVIEW}, author={Coffer, Brice E. and Parker, Matthew D. and Dahl, Johannes M. L. and Wicker, Louis J. and Clark, Adam J.}, year={2017}, month={Nov}, pages={4605–4625} } @article{sherburn_parker_king_lackmann_2016, title={Composite Environments of Severe and Nonsevere High-Shear, Low-CAPE Convective Events}, volume={31}, ISSN={["1520-0434"]}, DOI={10.1175/waf-d-16-0086.1}, abstractNote={Abstract}, number={6}, journal={WEATHER AND FORECASTING}, author={Sherburn, Keith D. and Parker, Matthew D. and King, Jessica R. and Lackmann, Gary M.}, year={2016}, month={Dec}, pages={1899–1927} } @article{rohi_ramezani_rahmaninia_zabihzadeh_hubbe_2016, title={Influence of pulp suspension ph on the performance of chitosan as a strength agent for hardwood cmp paper}, volume={50}, number={7-8}, journal={Cellulose Chemistry and Technology}, author={Rohi, M. and Ramezani, O. and Rahmaninia, M. and Zabihzadeh, S. M. and Hubbe, M. A.}, year={2016}, pages={873–878} } @article{davenport_parker_2015, title={Impact of Environmental Heterogeneity on the Dynamics of a Dissipating Supercell Thunderstorm}, volume={143}, ISSN={["1520-0493"]}, DOI={10.1175/mwr-d-15-0072.1}, abstractNote={Abstract}, number={10}, journal={MONTHLY WEATHER REVIEW}, author={Davenport, Casey E. and Parker, Matthew D.}, year={2015}, month={Oct}, pages={4244–4277} } @article{coffer_parker_2015, title={Impacts of Increasing Low-Level Shear on Supercells during the Early Evening Transition}, volume={143}, ISSN={["1520-0493"]}, DOI={10.1175/mwr-d-14-00328.1}, abstractNote={Abstract}, number={5}, journal={MONTHLY WEATHER REVIEW}, author={Coffer, Brice E. and Parker, Matthew D.}, year={2015}, month={May}, pages={1945–1969} } @article{davenport_parker_2015, title={Observations of the 9 June 2009 Dissipating Supercell from VORTEX2}, volume={30}, ISSN={["1520-0434"]}, DOI={10.1175/waf-d-14-00087.1}, abstractNote={Abstract}, number={2}, journal={WEATHER AND FORECASTING}, author={Davenport, Casey E. and Parker, Matthew D.}, year={2015}, month={Apr}, pages={368–388} } @article{parker_dahl_2015, title={Production of near-surface vertical vorticity by idealized downdrafts}, volume={143}, DOI={10.1175/mwr-d-14-00310.1}, abstractNote={Abstract}, number={7}, journal={Monthly Weather Review}, author={Parker, M. D. and Dahl, J. M. L.}, year={2015}, pages={2795–2816} } @article{sherburn_parker_2014, title={Climatology and Ingredients of Significant Severe Convection in High-Shear, Low-CAPE Environments}, volume={29}, ISSN={["1520-0434"]}, DOI={10.1175/waf-d-13-00041.1}, abstractNote={Abstract}, number={4}, journal={WEATHER AND FORECASTING}, author={Sherburn, Keith D. and Parker, Matthew D.}, year={2014}, month={Aug}, pages={854–877} } @article{parker_2014, title={Composite VORTEX2 Supercell Environments from Near-Storm Soundings}, volume={142}, ISSN={["1520-0493"]}, DOI={10.1175/mwr-d-13-00167.1}, abstractNote={Abstract}, number={2}, journal={MONTHLY WEATHER REVIEW}, author={Parker, Matthew D.}, year={2014}, month={Feb}, pages={508–529} } @article{dahl_parker_wicker_2014, title={Imported and Storm-Generated Near-Ground Vertical Vorticity in a Simulated Supercell}, volume={71}, ISSN={["1520-0469"]}, DOI={10.1175/jas-d-13-0123.1}, abstractNote={Abstract}, number={8}, journal={JOURNAL OF THE ATMOSPHERIC SCIENCES}, author={Dahl, Johannes M. L. and Parker, Matthew D. and Wicker, Louis J.}, year={2014}, month={Aug}, pages={3027–3051} } @article{french_parker_2014, title={Numerical Simulations of Bow Echo Formation Following a Squall Line-Supercell Merger}, volume={142}, ISSN={["1520-0493"]}, DOI={10.1175/mwr-d-13-00356.1}, abstractNote={Abstract}, number={12}, journal={MONTHLY WEATHER REVIEW}, author={French, Adam J. and Parker, Matthew D.}, year={2014}, month={Dec}, pages={4791–4822} } @article{davis_parker_2014, title={Radar Climatology of Tornadic and Nontornadic Vortices in High-Shear, Low-CAPE Environments in the Mid-Atlantic and Southeastern United States}, volume={29}, ISSN={["1520-0434"]}, DOI={10.1175/waf-d-13-00127.1}, abstractNote={Abstract}, number={4}, journal={WEATHER AND FORECASTING}, author={Davis, Jason M. and Parker, Matthew D.}, year={2014}, month={Aug}, pages={828–853} } @article{letkewicz_french_parker_2013, title={Base-State Substitution: An Idealized Modeling Technique for Approximating Environmental Variability}, volume={141}, ISSN={["1520-0493"]}, DOI={10.1175/mwr-d-12-00200.1}, abstractNote={Abstract}, number={9}, journal={MONTHLY WEATHER REVIEW}, author={Letkewicz, Casey E. and French, Adam J. and Parker, Matthew D.}, year={2013}, month={Sep}, pages={3062–3086} } @article{yuter_miller_parker_markowski_richardson_brooks_straka_2013, title={Comment on "Why do tornados and hailstorms rest on weekends?" by D. Rosenfeld and T. Bell}, volume={118}, ISSN={["2169-8996"]}, DOI={10.1002/jgrd.50526}, abstractNote={[1] The paper “Why do tornados and hailstorms rest on weekends?” [Rosenfeld and Bell, 2011] (hereinafter RB2011) contains key misunderstandings of US spring and summer tornadoes, supercell storms, and their environments. In this comment, we show that (1) there is not a robust weekly cycle or midweek maximum in tornado occurrence or tornado days, (2) RB2011’s physical explanation for how increased aerosol concentrations would cause increased frequency and severity of tornadoes and hail in supercells is inconsistent with actual supercell storm structures and their environments, and (3) RB2011’s method of averaging aerosol and tornado data from 100 W eastward conflates an aerosol weekly cycle in one geographic location with tornado occurrence in another.}, number={13}, journal={JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES}, publisher={American Geophysical Union (AGU)}, author={Yuter, Sandra E. and Miller, Matthew A. and Parker, Matthew D. and Markowski, Paul M. and Richardson, Yvette and Brooks, Harold and Straka, Jerry M.}, year={2013}, month={Jul}, pages={7332–7338} } @article{billings_parker_2012, title={Evolution and Maintenance of the 22-23 June 2003 Nocturnal Convection during BAMEX}, volume={27}, ISSN={["0882-8156"]}, DOI={10.1175/waf-d-11-00056.1}, abstractNote={Abstract}, number={2}, journal={WEATHER AND FORECASTING}, author={Billings, Jerilyn M. and Parker, Matthew D.}, year={2012}, month={Apr}, pages={279–300} } @article{parker_2012, title={Impacts of Lapse Rates on Low-Level Rotation in Idealized Storms}, volume={69}, ISSN={["0022-4928"]}, DOI={10.1175/jas-d-11-058.1}, abstractNote={Abstract}, number={2}, journal={JOURNAL OF THE ATMOSPHERIC SCIENCES}, author={Parker, Matthew D.}, year={2012}, month={Feb}, pages={538–559} } @article{french_parker_2012, title={Observations of Mergers between Squall Lines and Isolated Supercell Thunderstorms}, volume={27}, ISSN={["1520-0434"]}, DOI={10.1175/waf-d-11-00058.1}, abstractNote={Abstract}, number={2}, journal={WEATHER AND FORECASTING}, author={French, Adam J. and Parker, Matthew D.}, year={2012}, month={Apr}, pages={255–278} } @article{dahl_parker_wicker_2012, title={Uncertainties in Trajectory Calculations within Near-Surface Mesocyclones of Simulated Supercells}, volume={140}, ISSN={["0027-0644"]}, DOI={10.1175/mwr-d-12-00131.1}, abstractNote={Abstract}, number={9}, journal={MONTHLY WEATHER REVIEW}, author={Dahl, Johannes M. L. and Parker, Matthew D. and Wicker, Louis J.}, year={2012}, month={Sep}, pages={2959–2966} } @article{morin_parker_2011, title={A numerical investigation of supercells in landfalling tropical cyclones}, volume={38}, ISSN={["0094-8276"]}, DOI={10.1029/2011gl047448}, abstractNote={Supercell thunderstorms are known to occur in the outer rainbands of tropical cyclones (TCs), and these cells are of interest because they are occasionally tornadic. A series of multi‐scale quasi‐idealized TC simulations are used to study the development of outer rainband supercells. Within the environment of landfalling TCs, the sea‐to‐land transition of the rainbands is found to locally benefit supercell development onshore due in part to (1) enhanced surface‐based destabilization during the day and (2) increased surface friction slowing and backing the low‐level winds. Landfall time of day is shown to have a substantial impact on the average number, strength, and lifetime of the ensemble of simulated supercells. These idealized simulations represent a first attempt at controlled hypothesis tests for supercell and tornado ingredients within the context of a highly resolved parent TC.}, journal={GEOPHYSICAL RESEARCH LETTERS}, author={Morin, M. J. and Parker, M. D.}, year={2011}, month={May} } @article{letkewicz_parker_2011, title={Impact of Environmental Variations on Simulated Squall Lines Interacting with Terrain}, volume={139}, ISSN={["0027-0644"]}, DOI={10.1175/2011mwr3635.1}, abstractNote={Abstract}, number={10}, journal={MONTHLY WEATHER REVIEW}, author={Letkewicz, Casey E. and Parker, Matthew D.}, year={2011}, month={Oct}, pages={3163–3183} } @article{parker_2010, title={Comments on "A Comparison of Tropical and Midlatitude Thunderstorm Evolution in Response to Wind Shear''}, volume={67}, ISSN={["0022-4928"]}, DOI={10.1175/2009jas3404.1}, abstractNote={In a recent paper, Wissmeier and Goler (2009, hereafter WG09) presented the results of a numerical experiment meant to examine the different potential for convective storm splitting in the tropics versus the midlatitudes. WG09 found that simulated storms in tropical environments were less likely to undergo classical supercellular splitting because the storms’ outflow quickly spread out and cut the storms off from their source of inflow before the splitting process could occur. The main conclusion reached by WG09 is that higher vertical wind shear values are necessary for storm splitting to occur in the tropics than in the midlatitudes because the comparatively large vertical wind shear weakens and delays the convective outflow produced by storms. These are thought-provoking results and conclusions, but they hinge on some questionable assumptions and choices in the experimental design. The purpose of the present comment is to document and discuss several aspects of the study that bias WG09’s results and diminish the generality of their conclusions.}, number={5}, journal={JOURNAL OF THE ATMOSPHERIC SCIENCES}, author={Parker, Matthew D.}, year={2010}, month={May}, pages={1700–1707} } @article{letkewicz_parker_2010, title={Forecasting the Maintenance of Mesoscale Convective Systems Crossing the Appalachian Mountains}, volume={25}, ISSN={["0882-8156"]}, DOI={10.1175/2010waf2222379.1}, abstractNote={Abstract}, number={4}, journal={WEATHER AND FORECASTING}, author={Letkewicz, Casey E. and Parker, Matthew D.}, year={2010}, month={Aug}, pages={1179–1195} } @article{bryan_parker_2010, title={Observations of a Squall Line and Its Near Environment Using High-Frequency Rawinsonde Launches during VORTEX2}, volume={138}, ISSN={["0027-0644"]}, DOI={10.1175/2010mwr3359.1}, abstractNote={Abstract}, number={11}, journal={MONTHLY WEATHER REVIEW}, author={Bryan, George H. and Parker, Matthew D.}, year={2010}, month={Nov}, pages={4076–4097} } @article{kiefer_parker_charney_2010, title={Regimes of Dry Convection above Wildfires: Sensitivity to Fire Line Details}, volume={67}, ISSN={["1520-0469"]}, DOI={10.1175/2009jas3226.1}, abstractNote={Abstract}, number={3}, journal={JOURNAL OF THE ATMOSPHERIC SCIENCES}, author={Kiefer, Michael T. and Parker, Matthew D. and Charney, Joseph J.}, year={2010}, month={Mar}, pages={611–632} } @article{parker_2010, title={Relationship between System Slope and Updraft Intensity in Squall Lines}, volume={138}, ISSN={["0027-0644"]}, DOI={10.1175/2010mwr3441.1}, abstractNote={Abstract}, number={9}, journal={MONTHLY WEATHER REVIEW}, author={Parker, Matthew D.}, year={2010}, month={Sep}, pages={3572–3578} } @article{french_parker_2010, title={The Response of Simulated Nocturnal Convective Systems to a Developing Low-Level Jet}, volume={67}, ISSN={["0022-4928"]}, DOI={10.1175/2010jas3329.1}, abstractNote={Abstract}, number={10}, journal={JOURNAL OF THE ATMOSPHERIC SCIENCES}, author={French, Adam J. and Parker, Matthew D.}, year={2010}, month={Oct}, pages={3384–3408} } @article{baker_parker_eastin_2009, title={Environmental Ingredients for Supercells and Tornadoes within Hurricane Ivan}, volume={24}, ISSN={["1520-0434"]}, DOI={10.1175/2008WAF2222146.1}, abstractNote={Abstract}, number={1}, journal={WEATHER AND FORECASTING}, author={Baker, Adam K. and Parker, Matthew D. and Eastin, Matthew D.}, year={2009}, month={Feb}, pages={223–244} } @article{kiefer_parker_charney_2009, title={Regimes of Dry Convection above Wildfires: Idealized Numerical Simulations and Dimensional Analysis}, volume={66}, ISSN={["1520-0469"]}, DOI={10.1175/2008JAS2896.1}, abstractNote={Abstract}, number={4}, journal={JOURNAL OF THE ATMOSPHERIC SCIENCES}, author={Kiefer, Michael T. and Parker, Matthew D. and Charney, Joseph J.}, year={2009}, month={Apr}, pages={806–836} } @article{mahoney_lackmann_parker_2009, title={The Role of Momentum Transport in the Motion of a Quasi-Idealized Mesoscale Convective System}, volume={137}, ISSN={["1520-0493"]}, DOI={10.1175/2009MWR2895.1}, abstractNote={Abstract}, number={10}, journal={MONTHLY WEATHER REVIEW}, author={Mahoney, Kelly M. and Lackmann, Gary M. and Parker, Matthew D.}, year={2009}, month={Oct}, pages={3316–3338} } @article{parker_2008, title={Response of simulated squall lines to low-level cooling}, volume={65}, ISSN={["0022-4928"]}, DOI={10.1175/2007JAS2507.1}, abstractNote={Abstract}, number={4}, journal={JOURNAL OF THE ATMOSPHERIC SCIENCES}, author={Parker, Matthew D.}, year={2008}, month={Apr}, pages={1323–1341} } @article{french_parker_2008, title={The Initiation and Evolution of Multiple Modes of Convection within a Meso-Alpha-Scale Region}, volume={23}, ISSN={["1520-0434"]}, DOI={10.1175/2008WAF2222136.1}, abstractNote={Abstract}, number={6}, journal={WEATHER AND FORECASTING}, author={French, Adam J. and Parker, Matthew D.}, year={2008}, month={Dec}, pages={1221–1252} } @article{storm_parker_jorgensen_2007, title={A convective line with leading stratiform precipitation from BAMEX}, volume={135}, ISSN={["0027-0644"]}, DOI={10.1175/MWR3392.1}, abstractNote={Abstract}, number={5}, journal={MONTHLY WEATHER REVIEW}, author={Storm, Brandon A. and Parker, Matthew D. and Jorgensen, David P.}, year={2007}, month={May}, pages={1769–1785} } @article{parker_ahijevych_2007, title={Convective episodes in the East-Central United States}, volume={135}, ISSN={["0027-0644"]}, DOI={10.1175/2007MWR2098.1}, abstractNote={Abstract}, number={11}, journal={MONTHLY WEATHER REVIEW}, author={Parker, Matthew D. and Ahijevych, David A.}, year={2007}, month={Nov}, pages={3707–3727} } @article{parker_2007, title={Simulated convective lines with parallel stratiform precipitation. Part I: An archetype for convection in along-line shear}, volume={64}, ISSN={["1520-0469"]}, DOI={10.1175/JAS3853.1}, abstractNote={Abstract}, number={2}, journal={JOURNAL OF THE ATMOSPHERIC SCIENCES}, author={Parker, Matthew D.}, year={2007}, month={Feb}, pages={267–288} } @article{parker_2007, title={Simulated convective lines with parallel stratiform precipitation. Part II: Governing dynamics and associated sensitivities}, volume={64}, ISSN={["1520-0469"]}, DOI={10.1175/JAS3854.1}, abstractNote={Abstract}, number={2}, journal={JOURNAL OF THE ATMOSPHERIC SCIENCES}, author={Parker, Matthew D.}, year={2007}, month={Feb}, pages={289–313} } @article{bryan_knievel_parker_2006, title={A multimodel assessment of RKW theory's relevance to squall-line characteristics}, volume={134}, ISSN={["1520-0493"]}, DOI={10.1175/MWR3226.1}, abstractNote={Abstract}, number={10}, journal={MONTHLY WEATHER REVIEW}, author={Bryan, George H. and Knievel, Jason C. and Parker, Matthew D.}, year={2006}, month={Oct}, pages={2772–2792} }