RSS Mesoscale Discussions from Storm Prediction Center
No watches are valid as of Wed Mar 18 02:35:02 UTC 2026.
No Mesoscale Discussions are in effect as of Wed Mar 18 02:35:02 UTC 2026.
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0754 PM CDT Tue Mar 17 2026
Valid 180100Z - 181200Z
...NO THUNDERSTORM AREAS FORECAST...
...SUMMARY...
Thunderstorms are not forecast through tonight across the contiguous
United States.
...DISCUSSION...
An upper-level trough will remain over the eastern U.S. tonight, as
northwest mid-level flow continues over much of the remainder of the
nation. At the surface, an area of high pressure will be located
from the Southeast into the Atlantic Coastal states. Due to the
pattern, a dry airmass will be in place over most of the nation, and
conditions will be unfavorable for thunderstorm development through
daybreak Wednesday.
..Broyles.. 03/18/2026
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