403
ACUS03 KWNS 180714
SWODY3
SPC AC 180713

Day 3 Convective Outlook
NWS Storm Prediction Center Norman OK
0213 AM CDT Mon Aug 18 2025

Valid 201200Z - 211200Z

...NO SEVERE THUNDERSTORM AREAS FORECAST...

...SUMMARY...
No severe threat is expected across the continental U.S. on
Wednesday or Wednesday night.

...DISCUSSION...
A large area of mid-level high pressure will remain over the
Intermountain West and Rockies on Wednesday, as an associated ridge
moves eastward across the northern Plains. At the surface, a moist
airmass will be in place over much of the eastern two-thirds of the
nation. In spite of this, convective development will be isolated
over much of this airmass during the day on Tuesday. The greatest
convective coverage is expected near a front from the southern
Plains east-northeastward into the southern Appalachians Wednesday
afternoon. Within this corridor, deep-layer shear and large-scale
ascent will remain weak, suggesting that conditions will not be
favorable for severe storms. Further to the east, Hurricane Erin is
expected to remain in the far western Atlantic, and convective
potential is expected to be minimal along the Atlantic Seaboard.
Elsewhere, a severe threat is not expected to develop across the
continental U.S. Wednesday or Wednesday night.

..Broyles.. 08/18/2025

$$