630
ACUS11 KWNS 202237
SWOMCD
SPC MCD 202237
ILZ000-IAZ000-202330-
MESOSCALE DISCUSSION 1678
NWS STORM PREDICTION CENTER NORMAN OK
0537 PM CDT MON JUL 20 2026
AREAS AFFECTED...SOUTHEAST IOWA INTO NORTHWEST ILLINOIS
CONCERNING...TORNADO WATCH 500...
VALID 202237Z - 202330Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 500 CONTINUES.
SUMMARY...THE POTENTIAL FOR DAMAGING WINDS WITH GUSTS OF 70-80 MPH
ARE EXPECTED TO MOVE OUT OF THE WATCH AREA WITHIN THE HOUR AND AN
ADDITIONAL WATCH IS BEING COORDINATED.
DISCUSSION...AS OF 2230Z, A BOW ECHO WAS APPROACHING I-80, WEST OF
IOWA CITY WITH A FORWARD MOTION OF 45-50 MPH. EXTRAPOLATION TAKES
THE CONVECTIVE SYSTEM OUT OF TORNADO WATCH 500 WITHIN THE HOUR,
REQUIRING THE ISSUANCE OF A DOWNSTREAM WATCH. THE PRIMARY HAZARD IS
SEVERE WINDS WITH GUSTS UP TO 70-80 MPH.
..MEAD.. 07/20/2026
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...ILX...DVN...DMX...
LAT...LON 40729141 41279220 41979239 42399162 41789019 40808933
40168924 40039005 40439119 40729141
MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH
MOST PROBABLE PEAK WIND GUST...65-80 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page