RSS Mesoscale Discussions from Storm Prediction Center
No watches are valid as of Thu Aug 5 01:09:02 UTC 2021.
No Mesoscale Discussions are in effect as of Thu Aug 5 01:09:02 UTC 2021.
SPC 0100Z Day 1 Outlook
Day 1 Convective Outlook
NWS Storm Prediction Center Norman OK
0720 PM CDT Wed Aug 04 2021
Valid 050100Z - 051200Z
...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
A few lingering strong/severe thunderstorms are possible across
parts of Montana from this evening.
Early-evening water-vapor imagery depicts a well-defined short-wave
trough topping the ridge over southeast BC/northwestern MT.
Mid-level height field will be suppressed across northern MT this
evening ahead of this feature which may contribute to thunderstorms
lingering across this portion of the state, especially northern
portions of the MRGL risk region. With surface dew points only in
the 30s/40s, PW values approaching one inch may produce gusty
downdrafts for the next few hours.