Winter Storms

Winter storms can have a significant impact on society, yet remain a challenge to accurately forecast.

Winter storms can be beautiful but destructive.

Winter storms can be beautiful but destructive.

The emergence of polarimetric radars has allowed for better detection of precipitation type, including transitions from rain to snow and from freezing rain to ice pellets.

Fields of the polarimetric radar variables showing a newly discovered "refreezing signature". From Kumjian et al. (2013).

Fields of the polarimetric radar variables showing a newly discovered “refreezing signature”. From Kumjian et al. (2013).

In addition, the information we get about particle shape can be used to determine ice crystal habits, which tells us about the internal microphysics of the storms.

Various snow crystals collected near Boulder, Colorado.

Various snow crystals collected near Boulder, Colorado.

A list of my publications about winter storms can be found below.

Tobin*, D. M., and M. R. Kumjian, 2017: Polarimetric radar and surface-based precipitation type observations of ice pellet to freezing rain transitions. Weather and Forecasting32, 2065-2082. pdf

Kumjian, M.R., K. A. Lombardo, 2017: Insights into the evolving microphysical and kinematic structure of Northeastern U.S. winter storms from dual-polarization Doppler radar. Monthly Weather Review145, 1033-1061. pdf

Van Den Broeke, M. S., D. M. Tobin*, and M. R. Kumjian, 2016: Polarimetric radar observations of precipitation type and rate from the 2-3 March 2014 winter storm in Oklahoma and Arkansas. Weather and Forecasting, 31, 1179-1196. pdf

Schrom*, R. S., and M. R. Kumjian, 2016: Connecting microphysical processes in Colorado winter storms with vertical profiles of radar observations. Journal of Applied Meteorology and Climatology, 55, 1771-1787pdf

Schrom*, R. S., M. R. Kumjian, and Y. Lu, 2015: Polarimetric radar signatures of dendritic growth zones in Colorado winter storms. Journal of Applied Meteorology and Climatology54, 2365-2388pdf

Kumjian, M.R., and W. Deierling, 2015: Analysis of thundersnow storms over northern Colorado. Weather and Forecasting30, 1469-1490pdf

Kumjian, M.R., and A.D. Schenkman, 2014: The curious case of ice pellets over Middle Tennessee on 1 March 2014. Journal of Operational Meteorology – Image of Note(17), 209-213pdf

KumjianM.R., S. A. Rutledge, R. M. Rasmussen, P. C. Kennedy, and M. Dixon, 2014: High-resolution polarimetric radar observations of snow generating cells. Journal of Applied Meteorology and Climatology53, 1636-1658pdf

Kumjian, M.R., A.V. Ryzhkov, H.D. Reeves, and T.J. Schuur, 2013: A dual-polarization radar signature of hydrometeor refreezing in winter storms. Journal of Applied Meteorology and Climatology52, 2549-2566pdf

Andrić, J., M.R. Kumjian, D.S. Zrnić, J.M. Straka, and V. Melnikov, 2013: Polarimetric signatures above the melting layer in winter storms: An observational and modeling study. Journal of Applied Meteorology and Climatology, 52, 682-700pdf


 * Indicates a student advised by Dr. Kumjian