ZCZC SPCSWOMCD ALL
ACUS11 KWNS 241449 
SPC MCD 241449 
TXZ000-NMZ000-241815-

Mesoscale Discussion 0241
NWS Storm Prediction Center Norman OK
0949 AM CDT Wed Mar 24 2021

Areas affected...Northeast New Mexico

Concerning...Heavy snow 

Valid 241449Z - 241815Z

SUMMARY...Periods of heavy snow, featuring snowfall rates over 1
in/hr, will continue to be possible through 12 PM CDT as a snow band
moves across northeast New Mexico.

DISCUSSION...A band of heavy precipitation has been noted developing
over portions of east/northeast NM over the past hour. Surface
observations and web cams under this band have shown persistent
visibility reductions between one-quarter to one-half mile due to
heavy snowfall rates. This band is being organized largely by the
favorable overlap of synoptic lift ahead of the main upper-level low
(currently over the AZ/NM border) and a zone of warm air advection
near the 700 mb layer.  Water vapor imagery suggests this zone of
warm advection is occurring primarily ahead of an embedded shortwave
impulse, which is progressing to the northeast within the mean
southwesterly flow. The expectation is that this snow band will
persist until warm advection diminishes as the shortwave exits the
region around mid-day. Until then, periods of heavy snow should
continue across northeast NM - mainly across the higher
elevations/where temperatures are near freezing.

..Moore.. 03/24/2021

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

ATTN...WFO...AMA...ABQ...

LAT...LON   34330581 34990577 35550521 35960430 36150375 36180319
            36010286 35760289 35450297 35130317 34840350 34480404
            34150470 33970530 34330581 

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