A simulated supercell forming in the composite environment of tornadic storms from VORTEX2. The cloud outline is white, the strongest updraft is red, and the surface radar reflectivity is shaded.
The Convective Storms Group
Marine, Earth, and Atmospheric Sciences
North Carolina State University


Our research group was established at NC State in 2005, and is under the direction of Dr. Matthew Parker.



   


Welcome! Our current research focuses on the dynamics of convective storms, including tornadic supercells and mesoscale convective systems (MCSs). Such storms and systems have great impact upon our society owing to the hazardous weather they produce, and owing to their copious precipitation (which is critical to the water budget in large parts of the Americas). Some meteorological topics of ongoing interest to our group include: impacts of low-level wind and thermodynamic profiles upon supercells and tornadogenesis (including in landfalling hurricanes); effects of gravity waves on the environments of supercells and MCSs; storms' sensitivities and interactions in the high-shear regime that spans the MCS-supercellular spectrum; low-level kinematics and dynamics of elevated convection; and, climatology of convective storms in the eastern U.S.

To pursue these research goals, we utilize idealized numerical simulations (with the benefit of NCSU's supercomputer facilities), conventional observations (e.g. from the National Weather Service), and data from field projects such as the Bow Echo and Mesoscale Convective Vortex Experiment ("BAMEX") and the Verification of the Origin of Rotation in Tornadoes Experiment 2 ("VORTEX2").

To see our currently funded grants and information for prospective graduate RAs, please visit our Project Summaries page. For a bit more on our recent and ongoing efforts, see "What's New" below.

NC State is a great place to study Mesoscale Meteorology, and North Carolina's Research Triangle is a great place to live! Interested in joining us? Contact Dr. Parker for more information.

The Convective Storms Group is...

Dr. Matthew D. Brown Parker faculty advisor
Brice Coffer graduate research assistant and M.S. candidate
Jessica King graduate research assistant and M.S. candidate
Chris MacIntosh graduate research assistant and M.S. candidate
Most recent group photo

Alumni

Adam Baker B.S. (2007) went on to: M.S. program, NC State
Ben Baranowski Ph.D. cand. (2006-8) went on to: Warning Decision Training Branch
Jerilyn Billings M.S. (2007) went on to: National Weather Service, Wichita, KS
Billy Booth M.S. (2008) went on to: Northrop-Grumman
Johannes Dahl post-doc (2010-13) went on to: faculty, Texas Tech Univ.
Jason Davis M.S. (2013) went on to: forecaster, Iteris, Inc.
Adam French M.S., Ph.D. (2011) went on to: faculty, SD School of Mines and Tech.
Mike Kiefer Ph.D. (2009) went on to: research scientist, Mich. St. U./US Forest Service
Casey Letkewicz M.S., Ph.D. (2013) went on to: faculty, Air Force Academy
Matt Morin M.S. (2011) went on to: High Performance Tech. Inc./Geophys. Fluid Dyn. Lab.
Keith Sherburn M.S. (2013) went on to: forecaster, Weather Or Not, Inc.


What's New:   (current and recent group members in bold)

Dahl, J. M. L., M. D. Parker, and L. J. Wicker, in press: Imported and storm-generated near-ground vertical vorticity in a simulated supercell. J. Atmos. Sci., accepted in final form, April 2014.

Davis, J. M., and M. D. Parker, in press: Radar climatology of tornadic and non-tornadic vortices in high shear, low CAPE environments in the mid-Atlantic and southeastern U.S. Wea. Forecasting, accepted in final form, April 2014.

Sherburn, K. D., and M. D. Parker, in press: Climatology and ingredients of significant severe convection in high shear, low CAPE environments. Wea. Forecasting, accepted in final form, April 2014.

Clark, A. J., M. Coniglio, and B. E. Coffer, 2014: Sensitivity of 24 h Forecast Dryline Position and Structure to Boundary Layer Parameterizations in Convection-allowing WRF Model Simulations. 26th Conference on Weather Analysis and Forecasting / 22nd Conference on Numerical Weather Prediction, AMS, 2-6 February 2014, Atlanta, GA.

Coffer, B., and M. D. Parker, 2014: Impacts of Increasing Low-Level Shear on Supercells During the Evening Transition. Special Symposium on Severe Local Storms: The Current State of the Science and Understanding Impacts, AMS, 2-6 February 2014, Atlanta, GA.

Coffer, B. E., 2014: Sensitivity of Simulated Drylines to Boundary Layer Parameterization and Grid-Spacing. 13th Annual Student Conference of the AMS, 2-6 February 2014, Atlanta, GA.

MacIntosh, C. W., and M. D. Parker, 2014: The 6 May 2010 Elevated Supercell During VORTEX2. Special Symposium on Severe Local Storms: The Current State of the Science and Understanding Impacts, AMS, 2-6 February 2014, Atlanta, GA.

Parker, M.D., in press: Convective storm modeling. Encyclopedia of Atmospheric Sciences, 2nd edition, G. R. North, J. Pyle, and F. Zhang, Eds., Academic Press Elsevier, submitted in final form, December 2013. Invited contribution.

Parker, M.D., 2014: Composite VORTEX2 supercell environments from near-storm soundings. Mon. Wea. Rev., 142, 508-529.

French, A. J.,, and M. D. Parker, 2013: Numerical simulations of bow echo formation following a squall line - supercell merger. Mon Wea. Rev., submitted November 2013.

Sherburn, K. D.,, and M. D. Parker, 2013: Analysis of composite parameter skill in forecasting significant severe high shear low CAPE convection. 38th Annual Meeting of the National Weather Association, 12-17 October 2013, North Charleston, SC.

Letkewicz, C. E., A. J. French, and M. D. Parker, 2013: Base-state substitution: An idealized modeling technique for approximating environmental variability. Mon. Wea. Rev., 141, 3062-3086.

Coffer, B.E., and M. D. Parker, 2013: Impacts of low-level; environmental shear upon surface vorticity in supercells. 15th Conference on Mesoscale Processes, AMS, 6-9 August 2013, Portland, OR.

Dahl, J. M. L., M. D. Parker, and L. J. Wicker, 2013: The roles of ambient and storm-generated vorticity in near-ground rotation of a simulation supercell. 15th Conference on Mesoscale Processes, AMS, 6-9 August 2013, Portland, OR.

MacIntosh, C. W., and M. D. Parker, 2013: The 5 May 2010 elevated supercell observed during VORTEX2. 15th Conference on Mesoscale Processes, AMS, 6-9 August 2013, Portland, OR. Honorable mention for best student poster!

Parker, M. D., and J.M.L. Dahl, 2013: Toy model simulations of surface vorticity generation in downdrafts. 15th Conference on Mesoscale Processes, AMS, 6-9 August 2013, Portland, OR.

Sherburn, K. D., J. Dahl, and M. D. Parker, 2013: Development of mesovortices and tornado-like vortices within idealized high-shear, low-CAPE simulations. 15th Conference on Mesoscale Processes, AMS, 6-9 August 2013, Portland, OR.

Yuter, S. E., M. A. Miller, M. D. Parker, P. M. Markowski, Y. Richardson, H. Brooks, and J. M. Straka, 2013: Comment on "Why do tornadoes and hailstorms rest on weekends?". J. Geophys. Res., 118, 1-7, doi:10.1002/jgrd.50526.

Dahl, J. M. L., M. D. Parker, and L. J. Wicker, 2013: The role of ambient horizontal vorticity in near-ground rotation of supercells. 7th European Conference on Severe Storms, 3-7 June 2013, Helsinki, Finland.

Davis, J. M., K. D. Sherburn, and M. D. Parker, 2013: Investigation of high-shear, low-CAPE severe convection in the Southeastern and Mid-Atlantic United States. 7th European Conference on Severe Storms, 3-7 June 2013, Helsinki, Finland.

Parker, M. D., and J.M.L. Dahl, 2013: Toy model simulations of baroclinic and barotropic processes in downdrafts. 7th European Conference on Severe Storms, 3-7 June 2013, Helsinki, Finland.

Parker, M., B. Coffer, and C. MacIntosh, 2013: Composite VORTEX2 supercell environment from mobile soundings. VORTEX2 Science Workshop, 9-11 April 2013, Balcones Springs, TX.

Coffer, B. E., L. C. Maudlin, P. G. Veals, and A. J. Clark, 2013: Dryline position errors in experimental convection-allowing NSSL WRF Model forecasts and the operational NAM. 12th Annual Student Conference, AMS, 5-6 January 2013, Austin, TX. Awarded best graduate student poster presentation!

Sherburn, K. D., and M. D. Parker, 2013: The high-shear/low-CAPE problem: Improving detection of significant weather events in marginally unstable environments. 12th Annual Student Conference, AMS, 5-6 January 2013, Austin, TX.

Coffer, B. E., L. C. Maudlin, P. G. Veals, and A. J. Clark, 2012: Evaluating dryline position errors in convection-allowing WRF model forecasts. 26th Conference on Severe Local Storms, AMS, 5-8 November 2012, Nashville, TN.

Dahl, J. M. L., M. D. Parker, and L. J. Wicker, 2012: Baroclinic and barotropic vorticity in simulated near-surface mesocyclones. 26th Conference on Severe Local Storms, AMS, 5-8 November 2012, Nashville, TN.

Davis, J. M., and M. D. Parker, 2012: Radar climatology of tornadoes occurring in high shear/low CAPE environments in the Mid-Atlantic and Southeast. 26th Conference on Severe Local Storms, AMS, 5-8 November 2012, Nashville, TN.

French, A. J., and M. D. Parker, 2012: Idealized simulations of mergers between squall lines and isolated supercell thunderstorms. 26th Conference on Severe Local Storms, AMS, 5-8 November 2012, Nashville, TN.

Letkewicz, C. E., and M. D. Parker, 2012: Idealized simulations of supercell demise based on VORTEX2 observations. 26th Conference on Severe Local Storms, AMS, 5-8 November 2012, Nashville, TN.

Parker, M. D., B. Coffer, and C. MacIntosh, 2012: Composite supercell environments from VORTEX2. 26th Conference on Severe Local Storms, AMS, 5-8 November 2012, Nashville, TN.

Parker, M. D., and J. M. L. Dahl, 2012: Toy model simulations of horizontal momentum surges in supercells. 26th Conference on Severe Local Storms, AMS, 5-8 November 2012, Nashville, TN.

Sherburn, K. D., and M. D. Parker, 2012: Identifying discriminating environmental features between high shear/low CAPE severe convection and null events. 26th Conference on Severe Local Storms, AMS, 5-8 November 2012, Nashville, TN.

Dahl, J. M. L., M. D. Parker, and L. J. Wicker, 2012: Uncertainties in trajectory calculations within near-surface mesoscyclones of simulated supercells. Mon. Wea. Rev., 140, 2959-2966.

French, A. J., and M. D. Parker, 2012: Observations of mergers between squall lines and isolated supercell thunderstorms. Wea. Forecasting., 27, 255-278.

Billings, J. M., and M. D. Parker, 2012: Evolution and maintenance of the 22-23 June 2003 nocturnal convection during BAMEX. Wea. Forecasting., 27, 279-300.

Parker, M. D., 2012: Impacts of lapse rates upon low-level rotation in idealized storms. J. Atmos. Sci., 69, 538-559.

Parker, M., J. Blaes, G. Lackmann, and S. Yuter, 2012: Central North Carolina tornadoes from the 16 April 2011 outbreak. Special Symposium on the Tornado Disasters of 2011, AMS, 25 January 2012, New Orleans, LA.


Links:

The Convective Storms Group's data and software help page


last updated 10 April 2014