MD 2073 CONCERNING HEAVY SNOW FOR NORTH-CENTRAL TO EAST-CENTRAL CO
Mesoscale Discussion 2073
NWS Storm Prediction Center Norman OK
0944 PM CST Wed Dec 28 2022
Areas affected...North-central to east-central CO
Concerning...Heavy snow
Valid 290344Z - 290645Z
SUMMARY...A swath of heavy snow with rates around 2 inches per hour
will continue to move east from the I-25 to the I-70 corridor in
east-central CO before diminishing overnight.
DISCUSSION...Traffic cams, storm reports, and surface observations
confirm the presence of a heavy snow band along the foothills to the
I-25 corridor in the greater Denver-Boulder metro area. Here,
surface temperatures have been able to cool to 32-33 F, maximizing
snow rate efficiency as nearly the entire column has gone below
freezing within a persistent low-level upslope flow regime. This
period of heavy snow will likely continue for a couple more hours
before shrinking in areal extent (and overall intensity) after 06Z
as low-level winds shift to the northwest in the wake of shortwave
trough passage.
..Grams.. 12/29/2022
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...PUB...BOU...
LAT...LON 39720560 40210562 40540542 40520473 39820385 39420355
39220350 38980379 38740446 39030485 39290526 39480553
39720560
