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Mesoscale Discussion 343 |
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Mesoscale Discussion 0343
NWS Storm Prediction Center Norman OK
0856 PM CDT Tue Apr 01 2025
Areas affected...Southeast Nebraska...Northeast Kansas...Southwest
Iowa...Northwest Missouri
Concerning...Severe Thunderstorm Watch 92...
Valid 020156Z - 020300Z
The severe weather threat for Severe Thunderstorm Watch 92
continues.
SUMMARY...Severe threat continues across the eastern portions of the
central Plains. Hail should be the primary risk.
DISCUSSION...LLJ is strengthening across eastern OK into eastern KS
where 1km speeds are now in excess of 50-60kt. Convection has been
slow to mature along the cold front, but thunderstorms are gradually
increasing along a zone of low-level confluence from Barton to
Ottawa County KS. This activity should continue to increase as this
corridor is shunted southeast into an increasingly moist
environment.
A secondary cluster of strong/severe thunderstorms is noted across
the northwestern portion of ww92. This elevated convection will
shift east into a zone of strong low-level warm advection and its
longevity appears likely. Overall, a gradual uptick in frontal
convection, and elevated warm advection storms, will be noted into
the early-morning hours.
With time, some southward expansion of the severe thunderstorm watch
may be warranted.
..Darrow.. 04/02/2025
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...DMX...EAX...OAX...TOP...ICT...GID...
LAT...LON 38899865 41689747 41699476 38899605 38899865
MOST PROBABLE PEAK TORNADO INTENSITY...85-115 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN
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