Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0641 AM CST Mon Jan 23 2017 Valid 231300Z - 241200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... A few thunderstorms are possible today across the Middle Atlantic region, while isolated storms may also develop from California into the southern Great Basin. ...Synopsis... A deep occluded low over the Carolinas this morning will move slowly east-northeastward to just off the Mid Atlantic coast by this evening. In the interim, a few elevated thunderstorms will be possible this morning over VA, and some low-topped convection may develop this afternoon in association with the cold core low over eastern NC. South of the deep cyclone, a cold front has already crossed FL. A few convective showers will be possible today across central/south FL, though warming midlevel/equilibrium level temperatures by midday should limit the potential for lightning production. Farther west, one midlevel trough is already progressing inland over CA and the Great Basin. A few low-topped thunderstorms will be possible along the CA coast as a broad area of cellular convection spreads inland with the midlevel thermal trough, and as the closed low off the OR coast rotates southward. Isolated lightning strikes will also be possible in the steep lapse rate environment on the cyclonic side of the midlevel jet. ..Thompson/Peters.. 01/23/2017Read more
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