MD 0161 CONCERNING SNOW SQUALL FOR EASTERN CO TO NORTHERN NE
Mesoscale Discussion 0161
NWS Storm Prediction Center Norman OK
1012 AM CST Tue Feb 27 2024
Areas affected…Eastern CO to northern NE
Concerning…Snow Squall
Valid 271612Z – 271915Z
SUMMARY…A short-duration moderate to heavy snow band that is
effectively producing sporadic snow squall conditions should spread
east-southeast into early afternoon across parts of eastern Colorado
and northern Nebraska.
DISCUSSION…700-mb frontogenetical forcing for ascent has supported
a narrow band of moderate to heavy snow across a portion of the
Denver Metro Area northeastward into north-central NE, per surface
observations and road cameras. The northeast extent of this band is
well removed from the surface cold front that is marching
south-southeast from IA to north KS and east-central CO. Strong,
post-frontal gradient winds are combining with the narrow snow band
to produce snow squall-like conditions with substantial reduction in
visibility despite the mesoanalysis snow squall parameter holding
less than 0.1. The stronger 700-mb frontogenesis is largely expected
to shift east in NE and gradually weaken while shifting southeast in
eastern CO. This may yield breaks in the ongoing thin band, a
scenario supported by recent RRFS guidance.
..Grams.. 02/27/2024
…Please see www.spc.noaa.gov for graphic product…
ATTN…WFO…FSD…OAX…GID…LBF…GLD…PUB…BOU…
LAT…LON 40220439 40670277 42470020 43039938 43249835 42959772
42399785 41349895 40180157 39480232 38740295 38480341
38500383 38770443 39260477 40220439
