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Severe thunderstorms are not expected through tonight.
SPC AC 151930
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0230 PM CDT Tue Oct 15 2024
Valid 152000Z - 161200Z
NO SEVERE THUNDERSTORM AREAS FORECAST
### SUMMARY
Severe thunderstorms are not expected through tonight.
20z Update
The previous forecast remains valid with minimal changes, severe thunderstorms are not expected. Isolated lightning with low-topped thunderstorms will remain possible over the Great Lakes and central Appalachians into early this evening. Scattered storms will also remain likely over parts of the Southern Rockies ahead of a south/southwestward surging cold front. Additional isolated storms are possible ahead of the front along the Gulf Coast this evening/tonight.
Cold mid-level temps beneath an upper trough moving onshore may be sufficient for sporadic lightning within the deeper convective showers over parts of northwest WA late tonight. However, cool surface temperatures, and paltry buoyancy (MUCAPE ~100-200 J/kg) suggest any lightning that does actually develop will likely remain below 10% spatial coverage.
..Lyons.. 10/15/2024
.PREV DISCUSSION… /ISSUED 1114 AM CDT Tue Oct 15 2024/
A combination of cold air aloft, steep lapse rates, and warm late temperatures will aid in the development of isolated thunderstorms across parts of the Midwest states today. Other high-based thunderstorms are expected this afternoon and evening over the Four-Corners region. And finally, a few thunderstorms will continue to affect parts of south FL and the Keys through the forecast period. No severe storms are anticipated today.
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