Mesoscale Discussion 80

Issued

Feb 14, 2021, 12:05 PM CST (18:05 UTC)

Expired

Feb 14, 2021, 6:00 PM CST

In force

6 hr

Issued by

the Storm Prediction Center

Concerning

Heavy snow

The Dyess AFB radar (KDYX), 83 km from the middle of the area, began a volume at 18:09 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

751 
ACUS11 KWNS 141806
SWOMCD
SPC MCD 141805 
OKZ000-TXZ000-150000-

Mesoscale Discussion 0080
NWS Storm Prediction Center Norman OK
1205 PM CST Sun Feb 14 2021

Areas affected...Much of West Texas...the Texas South Plains...and
southern/central Oklahoma

Concerning...Heavy snow 

Valid 141805Z - 150000Z

SUMMARY...Areas of moderate to heavy snow are expected to increase
in coverage this afternoon in portions of the discussion area
through 00Z.

DISCUSSION...Latest observations/radar mosaic imagery indicates
widespread areas of light to moderate snow bands migrating
east-northeastward across the discussion area.  Embedded heavier
snow was also reported - most recently across Altus/Lawton/Hobart in
southwestern Oklahoma and near Odessa in southwest Texas. The bands
across southwestern Oklahoma may produce 1+ inch-per-hour snowfall
rates as they expand northeastward toward the I-35 corridor in
central Oklahoma over the next couple hours. 

Farther southwest, models/observations indicate that coverage of
moderate to heavy snow will increase over time from the Texas Big
Country northeastward to western North Texas as forcing for ascent
associated with a mid-level trough over New Mexico overspreads the
area.  A gradual increase of 700hPa flow in central Texas will also
contribute to increased ascent in this region.  The greater chance
of 1 inch-per-hour rates will generally increase along the I-20
corridor in west Texas (Midland to Abilene to Fort Worth) in the
21-00Z timeframe.

..Cook.. 02/14/2021

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

ATTN...WFO...FWD...OUN...SJT...LUB...AMA...MAF...

LAT...LON   35129898 35479788 35609724 35129707 33859699 32749713
            31999792 31219876 30669969 30630124 31210238 32040275
            32990260 33700208 34760000 35129898

Mesoscale Discussions in Texas, 2021Mesoscale Discussions in Oklahoma, 2021Every mesoscale discussion in 2021

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.