Clearpost.online It's your post, so post it!

Mesoscale Discussion 1673
NWS Storm Prediction Center Norman OK
0213 PM CDT Fri Aug 12 2022

Areas affected...central Idaho into far southwest Montana

Concerning...Severe potential...Watch possible 

Valid 121913Z - 122045Z

Probability of Watch Issuance...60 percent

SUMMARY...Severe storms are possible this afternoon/evening with a
threat of large hail and damaging winds.

DISCUSSION...Elevated storms have developed this morning across
northeast Oregon and eastern Washington within the cyclonic flow
ahead of a trough in the northeast Pacific Ocean. Storm
characteristics and SPC mesoanalysis would suggest that the majority
of these storms likely remain elevated. However, surface-based
destabilization has started to occur, particularly across the higher
terrain in central Idaho. As surface heating continues to
destabilize the airmass across the region, expect more robust storm
development and an increasing severe weather threat. Steep lapse
rates and moderate deep layer shear should support some hail threat
given supercell storm mode and the expectation for strong mid-level
updraft acceleration. In addition, some severe wind gusts may be
possible, especially as storms congeal into one or more line
segments.

..Bentley/Thompson.. 08/12/2022

...Please see www.spc.noaa.gov for graphic product...

ATTN...WFO...TFX...PIH...MSO...BOI...PDT...

LAT...LON   45931576 45911495 45791404 45511362 44731281 43901306
            43121450 43141577 43301643 43641685 44471680 45311665
            45831629 45931576