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 2085 NWS Storm Prediction Center Norman OK 0226 PM CDT Tue Sep 16 2025 AREAS AFFECTED...west-central Nebraska...northwest Kansas and extreme northeast Colorado CONCERNING...Severe potential...Watch likely VALID 161926Z - 162130Z PROBABILITY OF WATCH ISSUANCE...80 percent SUMMARY...Severe storms producing DAMAGING WINDS and localized hail appear likely late this afternoon and evening. DISCUSSION...Strong heating near the surface trough and beneath cool midlevel temperatures has led to a very unstable air mass for this time of year over western NE, though overall shear profiles are weak. Ongoing storms over northwest NE are likely to ....... more

MESOSCALE DISCUSSION 2084 NWS Storm Prediction Center Norman OK 0221 PM CDT Tue Sep 16 2025 AREAS AFFECTED...eastern Nebraska...southwestern Iowa...and northwestern Missouri CONCERNING...Severe potential...Watch unlikely VALID 161921Z - 162115Z PROBABILITY OF WATCH ISSUANCE...5 percent SUMMARY...Thunderstorm activity to increase through the afternoon with risk for a few instances of STRONG TO SEVERE wind. DISCUSSION...Thunderstorm activity is increasing across portions of central Iowa. Strong daytime heating amid mid 60s dew points has aided in MLCAPE around 1500-3000 J/kg. Though temperatures are hot (warming into the mid 80s to 90s F) with moderate ....... more