ZCZC SPCSWOMCD ALL
ACUS11 KWNS 271813 
SPC MCD 271813 
OKZ000-TXZ000-271945-

Mesoscale Discussion 0541
NWS Storm Prediction Center Norman OK
0113 PM CDT Sat Apr 27 2024

Areas affected...Northwest TX to north-central OK

Concerning...Tornado Watch 146...

Valid 271813Z - 271945Z

The severe weather threat for Tornado Watch 146 continues.

SUMMARY...Near-term severe threat appears bimodal with discrete
supercells from northwest Texas into southwest Oklahoma, and
separately in north-central Oklahoma with supercells embedded within
a slow-moving cluster.

DISCUSSION...A trio of discrete supercells are ongoing across a part
of northwest TX into far southwest OK, just ahead of the pronounced
dryline. The relatively most favorable thermodynamic environment is
just ahead of these cells. Large hail will be the primary initial
threat, but as supercells mature, the tornado threat should
correspondingly increase amid 0-1 km SRH of 100-200 m2/s2 per FDR
VWP data. 

Long-lived cluster with embedded supercell structures has gradually
progressed northeastward over northwest into north-central OK. This
has left a substantial cold pool in its wake with surface
temperatures in the upper 50s to low 60s, minimizing the severe
threat to its northwest in the near-term. Given the cluster 
aligning nearly parallel to the deep-layer shear vector, the primary
severe threat will likely be confined along the immediate leading
edge of this cluster within small-scale bowing structures
approaching the I-35 corridor.

..Grams.. 04/27/2024

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

ATTN...WFO...TSA...FWD...OUN...SJT...LUB...

LAT...LON   33490031 34609970 35809921 36369852 36919814 36879703
            36529679 35539765 34439786 32939939 32650001 32950044
            33490031 

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