ACUS11 KWNS 111657
SWOMCD
SPC MCD 111656=20
TXZ000-OKZ000-112100-

Mesoscale Discussion 0127
NWS Storm Prediction Center Norman OK
1056 AM CST Sun Feb 11 2024

Areas affected...West to northwest Texas

Concerning...Heavy snow=20

Valid 111656Z - 112100Z

SUMMARY...Periods of heavy snow with snowfall rates approaching 1
in/hour should continue into the early afternoon hours across
portions of west to northwest Texas.

DISCUSSION...Surface observations over the past 1-2 hours across
western TX have reported periods of visibility reductions down to
1/2 to 1/4 mile, indicative of moderate to heavy snowfall rates.
This trend is expected to persist for the next few hours as lift
within the left-exit region of an upper jet continues to coincide
with a mid-level deformation zone at around 700 mb. While the
dendritic growth zone is expected to remain somewhat shallow (around
50-100 mb deep), ascent through the 700-500 mb layer with lapse
rates approaching 7-8 C/km should continue to promote moderate to
heavy snowfall rates up to 1 inch/hour. Weak frontogenesis should
limit the potential for long duration snow bands, but latest
forecast guidance suggests that favorable overlap of mid/upper-level
ascent will linger over west to northwest TX through early
afternoon.

..Moore.. 02/11/2024

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8R3557tm7IxA8B0H5iExJI9f4unNGUav_W9uV_d5lUNGs8uoZ9WM0dRQoCsuRs2jiAjqpyl7s= 5UmrKjqp_CauIcxnd0$ for graphic product...

ATTN...WFO...OUN...LUB...

LAT...LON 34730173 34740092 34680017 34519985 34249969 33939969
33649984 33430016 33410058 33370131 33440205 33490231
33740273 34070294 34370283 34610248 34730173=20


=3D =3D =3D
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