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Mesoscale Discussion 667 | |
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Mesoscale Discussion 0667 NWS Storm Prediction Center Norman OK 0916 PM CDT Mon May 06 2024 Areas affected...Southwest into parts of central Iowa Concerning...Tornado Watch 191... Valid 070216Z - 070415Z The severe weather threat for Tornado Watch 191 continues. SUMMARY...An increase in damaging wind and QLCS tornado threat can be expected in southwest Iowa over the next 1-2 hours. Some risk will continue into central Iowa later this evening. DISCUSSION...Numerous wind damage reports as well as several observed/estimated severe gusts have occurred in southeast/east-central Nebraska. Moisture advection continues to maintain low 60s F dewpoints into southwest Iowa. Thought buoyancy will be limited to some extent, convection should remain surface-based for another few hours with additional support from the shortwave pivoting through the mid-Missouri Valley. The KDMX VAD shows 0-1 km SRH of over 400 m2/s2. Several QLCS circulations/tornadoes are possible along with a continued damaging wind threat. Given the forcing from the low-level jet and the upper-level shortwave, this activity seems likely to at least reach parts of central Iowa. Beyond 06Z, the low-level jet is forecast to weaken which could begin to limit the intensity of the line. ..Wendt.. 05/07/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...DMX...FSD...OAX... LAT...LON 40649475 41199523 42169584 42519552 42519465 42169379 41089303 40649377 40639457 40649475 |
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