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| Mesoscale Discussion 1921 | |
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Mesoscale Discussion 1921 NWS Storm Prediction Center Norman OK 0459 AM CDT Sun Aug 10 2025 Areas affected...portions of central IA Concerning...Severe Thunderstorm Watch 584... Valid 100959Z - 101130Z The severe weather threat for Severe Thunderstorm Watch 584 continues. SUMMARY...Isolated strong to severe wind gusts remain possible across central Iowa. DISCUSSION...A cluster of storms will continue to track northeast across central Iowa this morning. Overall radar presentation has become somewhat disorganized, but a corridor of 60-70 kt velocity signatures aloft are still noted to the west of the Des Moines vicinity. Instability decreases gradually with northeast extent, and stronger effective shear magnitudes remain displaced to the north. While severe gusts are possible over the next couple of hours, the expectation is that a gradual weakening trend will continue as convection develops northeast. ..Leitman.. 08/10/2025 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...DVN...ARX...DMX...OAX... LAT...LON 42049209 41559278 41279360 41059453 41129495 41339497 41979471 42619336 42839257 42659203 42049209 MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH MOST PROBABLE PEAK WIND GUST...55-70 MPH MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN |
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