SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook NWS Storm Prediction Center Norman OK 0656 PM CST Mon Dec 30 2024 Valid 310100Z - 311200Z ...NO SEVERE THUNDERSTORM AREAS FORECAST... ...SUMMARY... Isolated thunderstorms will be possible tonight in parts of the mid Mississippi and lower Ohio Valleys, but no severe threat is expected. ...DISCUSSION... A shortwave trough, evident on water vapor imagery over the central U.S., will move eastward across the mid Mississippi Valley tonight. Isolated thunderstorm development is expected after midnight ahead of the trough over parts of the mid Mississippi and lower Ohio Valleys, where surface dewpoints will mostly be in the 40s F. RAP forecast soundings in the lower Ohio Valley later tonight suggest that a boundary layer temperature inversion will be in place, which will keep thunderstorms elevated in nature. Although the stronger cells could produce gusty winds, instability should be too weak for a severe threat. Elsewhere across the continental U.S., thunderstorms are not expected to develop through tonight. ..Broyles.. 12/31/2024