SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0644 PM CST Mon Jan 18 2021 Valid 190100Z - 191200Z ...NO THUNDERSTORM AREAS FORECAST... ...SUMMARY... Thunderstorms appear unlikely across the contiguous United States through tonight. ...Central/East Texas... A gradual increase in low-level moisture will continue tonight across parts of central/east TX ahead of southeastward-moving cold front. Modest low-level warm advection occurring over this front should encourage scattered showers to develop across this region, mainly after 06Z. Current expectations are for this convection to remain shallow owing to rather poor mid-level lapse rates, with limited instability reaching into the 0 to -20 C layer. Although an isolated lightning flash cannot be ruled out in this regime late tonight into early Tuesday morning, overall thunderstorm probabilities should remain below 10% through the end of the period. ..Gleason.. 01/19/2021
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