Mesoscale Discussion 0764 NWS Storm Prediction Center Norman OK 0818 PM CDT Sun May 17 2026 Areas affected...portions of northwestern into north-central Iowa Concerning...Tornado Watch 213...216... Valid 180118Z - 180145Z The severe weather threat for Tornado Watch 213, 216 continues. SUMMARY...A focused swath of severe winds, with gusts in the 60-75 mph range, along with QLCS tornadoes, are likely with a bowing segment embedded within a broader elongated MCS. A couple gusts in the 75-90 mph range are possible. DISCUSSION...An embedded bowing segment has developed within an elongated persistent QLCS, and has been accompanied by severe gusts in the 65-70 mph range, along with a couple of brief QLCS tornadoes. At 752 PM CDT, a 77 mph wind gust was measured in Woodbury County, IA. This segment is traversing a strongly sheared/buoyant environment and is approaching the warm front. As such, a focused corridor of 60-75 mph gusts will continue for at least the next 2-3 hours. An additional gust or two in the 75-90 mph range remains possible. Additional QLCS tornadoes may still occur. ..Squitieri.. 05/18/2026 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...DMX...FSD... LAT...LON 42569642 42979577 43299516 43419453 43329407 43069384 42779392 42439450 42359558 42389609 42569642 MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH MOST PROBABLE PEAK WIND GUST...75-90 MPH MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN
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