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Mesoscale Discussion 1231 |
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Mesoscale Discussion 1231
NWS Storm Prediction Center Norman OK
0532 PM CDT Mon Jun 10 2024
Areas affected...much of central South Dakota into northern Nebraska
Concerning...Severe Thunderstorm Watch 404...
Valid 102232Z - 110100Z
The severe weather threat for Severe Thunderstorm Watch 404
continues.
SUMMARY...A threat of severe gusts and localized hail may spread
east/southeast out of WW 404 into central South Dakota and northern
Nebraska.
DISCUSSION...A line of storms producing locally severe gusts has
consolidated across west-central SD, with an additional cluster of
cells over northwest NE. Merging/colliding outflows may aid further
development from south-central SD into parts of northern NE this
evening.
Northeastern parts of the line have weakened recently as it has
interacted with cooler air. Objective analysis and surface obs show
a surface theta-e gradient just east of the existing watch, and
given the northeast/southwest line orientation, the primary severe
risk is forecast to translate southward over time, as new
development prefers the warmer boundary layer. As such, a new watch
may be considered.
..Jewell.. 06/10/2024
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...ABR...LBF...UNR...CYS...
LAT...LON 42040275 42210317 42500323 42830287 43780220 44670173
45400139 45600128 45600102 44980060 44390025 43429993
42720017 42230088 42030210 42040275
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