SPC 1630Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 1122 AM CDT Mon Mar 17 2025 Valid 171630Z - 181200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Severe thunderstorms are not forecast through tonight. ...Synopsis and Discussion... A cold front has cleared the Outer Banks and moved offshore. Still, isolated thunderstorms should persist through this afternoon across coastal NC and vicinity, as cool temperatures aloft associated with an eastward-moving upper trough support weak MUCAPE. Small hail may occur with this activity. Farther west, isolated convection appears possible this afternoon through tonight across parts of CA into the Great Basin and interior Pacific Northwest, along with coastal OR/WA. This activity will occur in association with an upper trough moving eastward over the western CONUS through the period. Weak instability is expected to limit the overall severe threat, with small hail possible with the strongest cores in the northern part of the Central Valley in CA. ..Gleason/Barnes.. 03/17/2025