Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
1112 AM CDT Wed Sep 16 2026
Valid 161630Z - 171200Z
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS OVER PARTS OF
NORTHERN UTAH...AND PARTS OF OHIO AND VICINITY....
...SUMMARY...
Isolated strong to severe thunderstorms appear possible today across
parts of the Midwest/Ohio Valley and Utah/far northwest Colorado.
...OH and Vicinity...
Morning visible satellite imagery shows broken cloud cover across
much of OH, which will allow pockets of heating/destabilization and
lead to moderate CAPE values by mid-afternoon. Widely scattered
thunderstorm development is expected, in a regime of relatively weak
westerly flow aloft and poor lapse rates. PWAT values approaching 2
inches and rather steep low-level lapse rates could result in
precip-loaded downdrafts capable of strong or occasionally damaging
winds.
...UT...
Moisture has increased across UT over the past 24 hours, with
dewpoints now in the low-mid 50s and PWAT values over 1 inch. This
along with ample heating will lead to scattered afternoon
thunderstorms. A band of 35-45 knot southwesterly mid-level winds
across this area will provide sufficient deep-layer shear for a few
rotating storms capable of hail and gusty winds.
..Hart/Chalmers.. 09/16/2026
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