ACUS11 KWNS 111725
SWOMCD
SPC MCD 111725=20
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=20
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
https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_sdyjJV7IxIrYg88srnM1V8kR_HKtAi5BS7cOXnxoOcE9yqS5c6gKb5IJcRIpbuyMg6cNDhRS= uaHSwIEyP9KRXcHg1E$ for graphic product...
ATTN...WFO...MSO...OTX...
LAT...LON 46821614 47311678 47791724 48091710 48401652 48321593
47821523 47331468 46911470 46791560 46821614=20
=3D =3D =3D
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