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Mesoscale Discussion 984 |
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Mesoscale Discussion 0984
NWS Storm Prediction Center Norman OK
0730 PM CDT Mon May 30 2022
Areas affected...portions of central and eastern Kansas...eastern
Nebraska and central Iowa.
Concerning...Tornado Watch 294...
Valid 310030Z - 310200Z
The severe weather threat for Tornado Watch 294 continues.
SUMMARY...Severe storms ongoing through much of the watch will
continue to pose a risk for hail, damaging wind gusts and a couple
of tornadoes into this evening. Additional development along the
dryline/cold front intersection should renew severe potential with a
line of storms later this evening.
DISCUSSION...As of 0025 UTC, regional radar and surface analysis
showed several clusters of strong/severe storms ongoing east of a
dryline/cold front from KS northeastward into central IA. Convection
on the northern side of the watch has struggled to organize so far
likely due to deeper mixing of available surface moisture and veered
low-level winds. Isolated hail and damaging wind gusts will remain
possible with storms given 2000 J/kg of MLCAPE and 50-70 kt of
effective shear. Farther south into portions of KS, several
supercells have organized east of the dryline along the I-35
corridor. Several reports of hail and strong winds have been
observed over the last hour. The severe risk should continue into
this evening within a warm, moist and buoyant airmass characterized
bu upper 60s F dewpoints and temperatures in the low 80s F. The
tornado threat remains less certain, but some 0-1km hodograph
enlargement has been noted on area VAD VWPs over the last hour in
response to the increasing nocturnal low-level jet. A couple
tornadoes will remain possible with the stronger more isolated
supercells and low-level shear increases tonight.
Additional storm development along the western edge of the watch is
likely later this evening as the surging cold front intersects with
the dryline. Evening visible imagery shows some enhancement to
high-based cumulus along the front from southeastern NE into western
IA. The main threats with these storms will be damaging winds and
hail, though a QLCS tornado or two will remain possible given the
increasing low-level shear.
..Lyons.. 05/31/2022
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...ARX...DMX...EAX...TSA...FSD...OAX...TOP...ICT...
LAT...LON 37009834 43439467 43419268 36999651 37009834
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