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 0292 NWS Storm Prediction Center Norman OK 0325 PM CDT Thu Mar 26 2026 AREAS AFFECTED...much of Ohio into western Pennsylvania CONCERNING...Severe potential...Watch likely VALID 262025Z - 262200Z PROBABILITY OF WATCH ISSUANCE...80 percent SUMMARY...Gradual convective development should support an increasing risk for supercells late this afternoon into this evening. Hail, DAMAGING GUSTS are likely, with a COUPLE OF TORNADOES possible. DISCUSSION...Afternoon visible and radar imagery showed an area of showers and weak convection gradually intensifying across southern Lower MI into northwestern OH. Located along and south of a front/lake ....... more

MESOSCALE DISCUSSION 0291 NWS Storm Prediction Center Norman OK 0248 PM CDT Thu Mar 26 2026 AREAS AFFECTED...Portions of Illinois...northern Indiana...into southern lower Michigan and northwest Ohio CONCERNING...Severe potential...Watch likely VALID 261948Z - 262145Z PROBABILITY OF WATCH ISSUANCE...80 percent SUMMARY...Thunderstorm development appears likely over the next couple of hours along a surface cold front and various lake breeze boundaries. Ample buoyancy and vertical shear for supercells and line segments will support an increasing severe risk for all hazards. A WW is likely. DISCUSSION...As of 1945 UTC, visible imagery showed a deepening cumulus ....... more