Southern Indiana Weather Spotter's Reference
Current Mesoscale Discussions for the USA
Checks for Severe Potential, Heavy Rain, Heavy Snow, and Freezing Rain
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MESOSCALE DISCUSSION 2036 NWS Storm Prediction Center Norman OK 0501 PM CDT Fri Sep 05 2025 AREAS AFFECTED...the Upper OH Valley CONCERNING...Severe potential...Watch possible VALID 052201Z - 060000Z PROBABILITY OF WATCH ISSUANCE...40 percent SUMMARY...Isolated STRONG TO SEVERE thunderstorms are possible this evening to the northeast of recently issued WW 606, most probable across western to northern West Virginia. DISCUSSION...Initially small discrete cells have been slow to develop in the Upper OH Valley region of southeast OH and western WV, where MLCAPE is progressively weaker with northeast extent from the TN Valley. But with stronger southwesterly to ....... more

MESOSCALE DISCUSSION 2035 NWS Storm Prediction Center Norman OK 0330 PM CDT Fri Sep 05 2025 AREAS AFFECTED...Parts of the Tennessee and Ohio Valleys CONCERNING...Severe potential...Watch possible VALID 052030Z - 052230Z PROBABILITY OF WATCH ISSUANCE...60 percent SUMMARY...Monitoring for increasing severe-thunderstorm potential into this evening. One or more watches will probably be needed for parts of the area. DISCUSSION...The latest visible satellite imagery and radar data show a gradual deepening of boundary-layer cumulus and the first signs of convective development within cloud breaks across parts of TN and KY. Continued differential heating ahead of a ....... more