Day 1 Severe Weather Outlook

Valid 172000Z – 181200Z


Severe thunderstorms are not expected across the contiguous U.S.
through tonight.

…20Z Update…
No changes have been made to the ongoing forecast.

..Gleason.. 02/17/2020

.PREV DISCUSSION… /ISSUED 1030 AM CST Mon Feb 17 2020/

…South-central and Southeast States…
Large-scale trough amplification will occur over the north-central
CONUS/Great Lakes through tonight. A persistent warm conveyor will
accompany a northeast-advancing warm front across the south-central
CONUS. In response, elevated convection may develop by mid/late
afternoon across the middle Gulf Coast States, toward the ArkLaMiss
this evening, and into the Tennessee Valley later tonight. A
separate corridor of convection with embedded thunderstorms should
develop tonight across the Mid-South region as low-level convergence
strengthens along a southeastward-spreading cold front. Severe
storms are not expected, largely attributable to only weak elevated


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