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 2083 NWS Storm Prediction Center Norman OK 0449 PM CDT Mon Sep 15 2025 AREAS AFFECTED...portions of eastern Iowa into central Missouri...northern and central Arkansas...far southwestern Tennessee...far northwestern Mississippi CONCERNING...Severe potential...Watch unlikely VALID 152149Z - 152315Z PROBABILITY OF WATCH ISSUANCE...5 percent SUMMARY...A couple instances of DAMAGING GUSTS or hail may accompany the stronger, longer-lived storm cores this afternoon into early evening. DISCUSSION...Pulse cellular convection has recently intensified and become more widespread through the afternoon, with some 40+ dBZ echoes extending up to 50 kft ....... more

MESOSCALE DISCUSSION 2082 NWS Storm Prediction Center Norman OK 0433 PM CDT Mon Sep 15 2025 AREAS AFFECTED...Much of Wyoming into far western South Dakota CONCERNING...Severe potential...Watch unlikely VALID 152133Z - 152330Z PROBABILITY OF WATCH ISSUANCE...5 percent SUMMARY...A few severe gusts may accompany the stronger storm cores this afternoon into early evening. DISCUSSION...High-based thunderstorms have gradually been increasing in intensity this afternoon. These storms are overspreading a very dry boundary layer, with RAP forecast soundings showing inverted-v profiles extending up to 600 mb, resulting in up to 1200 J/kg DCAPE. Furthermore, these ....... more