Subj : DAY1SVR: Day 1 Convective Outlook
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Wed Sep 17 2025 00:40:25

ACUS01 KWNS 170040
SWODY1
SPC AC 170038

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0738 PM CDT Tue Sep 16 2025

Valid 170100Z - 171200Z

....THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS IN NORTHWEST KS
AND SOUTHWEST NE...

....SUMMARY...
A diminishing severe threat is expected over the central Great
Plains tonight.

....CO/KS/NE...
Primary severe potential will remain over the next 1-2 hours with
several semi-discrete updrafts across northeast CO, southwest NE,
and northwest KS. Strong low-level convergence in the tri-state
border area will foster amalgamation of these updrafts into a
broader cluster. This will hamper sustained hail growth and support
a diminishing severe threat. With only moderate mid-level
west-southwesterlies sampled in upstream VWPs along the Front Range
and nocturnally increasing MLCIN across the warm sector, later
evening clusters should struggle to greatly organize and severe wind
potential should remain isolated/sporadic.

...Grams.. 09/17/2025

$$

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