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 2229 NWS Storm Prediction Center Norman OK 1155 PM CDT Thu Sep 03 2026 AREAS AFFECTED...portions of northern Minnesota into northwest Wisconsin CONCERNING...Severe potential...Watch possible VALID 040455Z - 040700Z PROBABILITY OF WATCH ISSUANCE...40 percent SUMMARY...Hail and wind threat will continue late this evening into the overnight hours associated with the southern portions of a north-to-south linear thunderstorm complex. Trends are being assessed for potential downstream watch issuance across portions of Minnesota and Wisconsin. DISCUSSION...A long-lived linear thunderstorm cluster continues to move east across northern Minnesota ....... more

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MESOSCALE DISCUSSION 2228 NWS Storm Prediction Center Norman OK 1126 PM CDT Thu Sep 03 2026 AREAS AFFECTED...southeast Wisconsin CONCERNING...Severe potential...Watch unlikely VALID 040426Z - 040600Z PROBABILITY OF WATCH ISSUANCE...20 percent SUMMARY...Large hail and perhaps some wind damage will be possible with a supercell thunderstorm moving across southeast Wisconsin late this evening into the early morning. A watch is not expected. DISCUSSION...An isolated supercell is moving south-southeast across southeast Wisconsin this evening along an MUCAPE gradient. To the southwest of the storm -- likely the source region -- surface temperatures and dewpoint ....... more