MD 0043 CONCERNING FREEZING RAIN FOR NORTHEAST KS…NORTHWESTERN MO…SOUTHERN IA
Mesoscale Discussion 0043 NWS Storm Prediction Center Norman OK 0120 PM CST Tue Jan 22 2019 Areas affected...northeast KS...northwestern MO...southern IA Concerning...Freezing rain Valid 221920Z - 222245Z SUMMARY...Freezing rain rates approaching 0.05 inch per hour are possible beginning early this afternoon and spreading from west to east from northeast KS into southeast IA. DISCUSSION...Surface analysis places a cold front from east-central KS northeast through the Kansas City metro. Temperatures are falling into the upper 20s to near 30 degrees F behind the front. A mid-level trough located over the central High Plains this afternoon will continue to pivot east towards the region and large-scale forcing for ascent will gradually increase in the vicinity of the frontal zone this afternoon. Forecast soundings show a warm nose with temperatures above freezing around 800 mb atop a 1 km deep layer at or below freezing---indicative of freezing rain as the favored precipitation type before transitioning to sleet over KS and MO later this afternoon. The latest ECMWF guidance suggests freezing rain rates near 0.05 inch per 3 hours will become increasingly common by late afternoon. ..Smith.. 01/22/2019 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...DVN...DMX...EAX...OAX...TOP... LAT...LON 38699674 39939603 40939393 41349229 41059149 40619149 40459228 40339368 39959472 39139568 38609612 38699674
from SPC Mesoscale Discussions http://bit.ly/2S0FqCx
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