ZCZC SPCSWOMCD ALL
ACUS11 KWNS 111725 
SPC MCD 111725 
MTZ000-IDZ000-WAZ000-112030-

Mesoscale Discussion 0044
NWS Storm Prediction Center Norman OK
1125 AM CST Thu Jan 11 2024

Areas affected...portions of northern Idaho into extreme western
Montana

Concerning...Heavy snow 

Valid 111725Z - 112030Z

SUMMARY...Heavy snow should continue for at least a few more hours,
with 1-2 inch/hr snowfall rates common. Reduced visibility is likely
in the heavier snow bands.

DISCUSSION...A low-level cyclone is drifting southeast across the
Idaho Panhandle into extreme western Montana as a mid-level impulse
traverses the International border, providing deep-layer ascent.
Latest mesoanalysis and RAP forecast soundings characterize vertical
profiles as near saturated, with deep-layer steep lapse rates,
supporting a sufficiently deep and moist dendritic growth zone to
support continued 1-2 inch/hr snowfall rates given strong lift in
place. Latest high-resolution guidance suggests that at least brief
bouts of heavy snow and perhaps reduced visibility should continue
through at least 21Z.

..Squitieri.. 01/11/2024

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

ATTN...WFO...MSO...OTX...

LAT...LON   46821614 47311678 47791724 48091710 48401652 48321593
            47821523 47331468 46911470 46791560 46821614 

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