839
ACUS11 KWNS 180119
SWOMCD
SPC MCD 180118
IAZ000-180145-
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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