ACUS01 KWNS 271254
SWODY1
SPC AC 271253

Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0753 AM CDT Wed Aug 27 2025

Valid 271300Z - 281200Z

...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS EASTERN COLORADO...

...SUMMARY...
Some strong to locally severe storms may occur across eastern
Colorado and the central High Plains late this afternoon and early evening.

...Eastern Colorado/Central High Plains...
Prevalent cloud cover and some lingering mostly light precipitation
should eventually abate later this afternoon, with thunderstorms
expected to develop/increase initially over the mountains by around
mid-afternoon. These storms will spread east-southeastward toward
the instability axis across the adjacent High Plains through early
evening. Moderately strong mid-level flow could support some
semi-organized storms, and a couple of clusters could evolve by
evening. Localized instances of marginally severe hail and/or wind
could occur, although locally heavy rainfall may be more of a
prevalent concern.

...Upper Midwest...
A region of moderate instability is forecast to develop from eastern
South Dakota into southern Minnesota this afternoon. But this will
be in the wake of a southeastward-moving shortwave trough, with weak
height rises and subsidence in its wake. Nonetheless, isolated storm
development may occur by late afternoon/early evening, and a few
strong storms are conceivable.

..Guyer/Kerr.. 08/27/2025

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