742
ACUS11 KWNS 111000
SWOMCD
SPC MCD 110959
IAZ000-MOZ000-NEZ000-111200-
MESOSCALE DISCUSSION 1084
NWS STORM PREDICTION CENTER NORMAN OK
0459 AM CDT THU JUN 11 2026
AREAS AFFECTED...SOUTHEAST NEBRASKA INTO SOUTH-CENTRAL IOWA
CONCERNING...SEVERE THUNDERSTORM WATCH 310...
VALID 110959Z - 111200Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 310
CONTINUES.
SUMMARY...WITH AN ORGANIZING MCV MOVING INTO SOUTHWEST IOWA, THE
THREAT FOR STRONG/SEVERE SURFACE GUSTS IS EXPECTED TO INCREASE.
DISCUSSION...VELOCITY DATA FROM KOAX SUGGEST THAT AN MCV HAS
RECENTLY DEVELOPED CENTERED EAST OF LINCOLN, NE. OBSERVATIONS FROM
THE PAST 1-2 HOURS HAVE SUGGESTED THAT THE LOW-LEVEL THERMODYNAMIC
ENVIRONMENT CAN SUPPORT STRONG/SEVERE SURFACE GUSTS AS GUSTS FROM
50-70 MPH HAVE BEEN MEASURED FROM SOUTH-CENTRAL INTO SOUTHEAST
NEBRASKA. THIS MCV IS LIKELY TO CONTINUE EAST ALONG THE BUOYANCY
GRADIENT, SUPPORTED BY A 50-55 KT LOW-LEVEL JET. STRONG/SEVERE
SURFACE GUSTS WILL BE MORE PROBABLE AT LEAST INTO SOUTHWEST IOWA.
TEMPERATURES ARE SLIGHTLY COOLER IN SOUTH-CENTRAL IOWA, THOUGH
THETA-E ADVECTION WILL IMPROVE THE ENVIRONMENT BY DAYBREAK. LARGE
HAIL WILL REMAIN POSSIBLE, BUT SHOULD BE MORE SPATIALLY LIMITED
OWING TO A LESS FAVORABLE STORM MODE. A TORNADO OR TWO IS
CONDITIONALLY POSSIBLE AS WELL.
..WENDT.. 06/11/2026
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...DMX...EAX...OAX...
LAT...LON 40409698 41009712 41359650 41529385 41269289 40739276
40309343 40319559 40409698
MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
MOST PROBABLE PEAK WIND GUST...55-70 MPH
MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN
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