ACUS02 KWNS 260558
SWODY2
SPC AC 260557

Day 2 Convective Outlook  
NWS Storm Prediction Center Norman OK
1257 AM CDT Wed Aug 26 2026

Valid 271200Z - 281200Z

...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PORTIONS OF
THE MID-ATLANTIC INTO THE NORTHEAST...

...SUMMARY...
Scattered strong to severe thunderstorms are possible across parts
of the Northeast on Thursday. Damaging wind, hail and a tornado or
two may accompany these storms.

...Mid Atlantic to the Northeast...
An embedded mid-level trough will rotate around a broader trough
across the Great Lakes. This embedded shortwave trough will advance
from near Lake Erie to the VT/NH region during the day Thursday. A
surface cold front will move from northern Ontario into Quebec with
a trailing cold front extending southward into the Great Lakes.
Moderate to potentially strong instability is forecast ahead of this
front as mid to upper 60s dewpoints advect northward. Mid-level flow
is not exceptionally strong, however, some stronger flow is evident
above 7km on forecast soundings. This wind profile will support a
predominantly multicellular storm mode. However, a few supercells
may also be possible. Large hail and damaging wind gusts will be the
primary threat, but a tornado or two may also occur farther north
across eastern New York and vicinity where forecast soundings
exhibit some modest low-level veering. 

...Central High Plains...
An amplified mid-level ridge will shift east toward the Plains on
Thursday. Low-level southerly flow will advect low 60s dewpoints
northward into western Nebraska and far southwest South Dakota. This
should result in moderate instability across the region. Forecast
soundings show a favorable environment for supercells with 40+ knots
of effective shear and 1500-3000 J/kg MLCAPE. However, rising
heights associated with the eastward shifting ridge may keep
convection mostly suppressed. Nonetheless, isolated storms are
possible within this favorable environment which would support a
conditional 2+ inch hail and 75+ mph wind gust threat.

..Bentley.. 08/26/2026

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