The cold front over NC-Kansas and SE Nebraska was monitored for further development. As expected, storms began to build SW-wards towards the KS boarder and CI products were effective in highlighting the area with highest probabilities for potential development along that boundary.
The event occurred over Clay and York counties (Nebraska). A series of images will be added to show the evolution
UAHCI product upper left, CIMSS Cld top cooling upper right, lightning
data lower left and surface reflectivity at -10 C isothermal level at
2232 Z
UAHCI product upper left, CIMSS Cld top cooling upper right, lightning
data lower left and surface reflectivity at -10 C isothermal level at
2245 Z
UAHCI product upper left, CIMMS Cld top cooling upper right, lightning
data lower left and surface reflectivity at -10 C isothermal level at
2302 Z
Roughly 30 min before surface reflectivity at -10C isothermal level revealed first signs of development, the CI product highlighted both counties with 50-60 % probabilities. The cloud top cooling product showed values of -15 to -25K/15 min at 2315Z (not shown) and the first significant reflectivity signal (56 dbZ ) became visible at 2330 Z. At 00Z onwards a 63 dBz cell evolved out of that NE of York.
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