Subj : MESO: Mesoscale Discussion 0580
To   : wx-storm@lists.illinois.edu
From : COD Weather Processor
Date : Sun Apr 27 2025 23:46:01

ACUS11 KWNS 272345
SWOMCD
SPC MCD 272344=20
NEZ000-SDZ000-280115-

Mesoscale Discussion 0580
NWS Storm Prediction Center Norman OK
0644 PM CDT Sun Apr 27 2025

Areas affected...Portions of western Nebraska

Concerning...Tornado Watch 178...

Valid 272344Z - 280115Z

The severe weather threat for Tornado Watch 178 continues.

SUMMARY...Supercell tornado threat is expected to increase over the
next hour.

DISCUSSION...Recent radar data from LNX has shown splitting
supercell structures and related mergers over portions of western
NE, with a recent intensification of a right-moving supercell. As
this storm and other nearby developing storms continue
east-northeastward, a moist boundary layer (dewpoints in the lower
60s) and increasing clockwise-curved hodographs (effective SRH
increasing to around 400 m2/s2) will favor an increasing supercell
tornado risk. Given, the ample streamwise vorticity and rich
low-level moisture, a strong tornado cannot be ruled out.

...Weinman.. 04/27/2025

....Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj=
g!-kI8PnqW_AX9LZlT6zSMo-XxvlAZI8LLM7DN0hNcPPtM-pwdbhLpWVzNZPq5smqUEvaC0w2BV=
HZHv4OhmM07gGBJ1qw$  for graphic product...

ATTN...WFO...LBF...UNR...

LAT...LON   41540202 42050220 42480265 42770270 42960242 43060212
            43040173 42830127 42390090 41790095 41470122 41390177
            41540202=20

MOST PROBABLE PEAK TORNADO INTENSITY...100-130 MPH
MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


=3D =3D =3D
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