Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0154 AM CDT Sat Mar 25 2017 Valid 271200Z - 281200Z ...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ON MONDAY OVER PARTS OF THE LOWER AND MIDDLE MISSISSIPPI VALLEY... ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM THE ARKLATEX REGION INTO THE LOWER OHIO VALLEY... ...SUMMARY... Severe thunderstorms are possible over parts of the Middle and Lower Mississippi Valley on Monday. ...Middle/Lower MS Valleys... The shortwave trough that will affect the southern Plains on Sunday will progress eastward into the MS Valley on Monday. Models are in good agreement that the primary surface low will be over northwest AR on Monday morning, and will track into southern IL by evening. Thunderstorms will likely intensify during the afternoon in the warm sector over AR and spread northeastward into parts of KY/TN/MS through the evening. Forecast soundings suggest relatively steep lapse rates and strong winds aloft. This will support a risk of hail and damaging wind gusts in the stronger cells. Thunderstorms will spread into the TN/OH Valleys after dark, but weaker instability and uncertainty regarding the weakening of wind fields in this area lower confidence in a continued severe threat. ..Hart.. 03/25/2017Read more
from SPC Forecast Products http://ift.tt/GAMjPN
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