THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 310 IN EFFECT UNTIL 10 AM CDT THIS MORNING FOR THE FOLLOWING AREAS
IN IOWA THIS WATCH INCLUDES 38 COUNTIES
IN CENTRAL IOWA
BOONE DALLAS GRUNDY HAMILTON HARDIN JASPER MARSHALL POLK POWESHIEK STORY TAMA WEBSTER
IN NORTHEAST IOWA
BLACK HAWK
IN SOUTH CENTRAL IOWA
APPANOOSE CLARKE DECATUR LUCAS MADISON MAHASKA MARION MONROE RINGGOLD UNION WARREN WAYNE
IN SOUTHEAST IOWA
DAVIS WAPELLO
IN SOUTHWEST IOWA
ADAIR ADAMS CASS TAYLOR
IN WEST CENTRAL IOWA
AUDUBON CALHOUN CARROLL CRAWFORD GREENE GUTHRIE SAC
THIS INCLUDES THE CITIES OF ACKLEY, ADAIR, ADEL, ALBIA, ALLERTON, AMES, ATLANTIC, AUDUBON, BAYARD, BEDFORD, BLOOMFIELD, BOONE, CARLISLE, CARROLL, CASEY, CEDAR FALLS, CENTERVILLE, CHARITON, CONRAD, CORNING, CORYDON, CRESTON, DENISON, DES MOINES, DIKE, DYSART, EARLHAM, EARLY, ELDORA, EXIRA, FONTANELLE, FORT DODGE, GLADBROOK, GREENFIELD, GRINNELL, GRUNDY CENTER, GUTHRIE CENTER, HUMESTON, INDIANOLA, IOWA FALLS, JEFFERSON, KNOXVILLE, LAKE CITY, LAKE VIEW, LAMONI, LENOX, LEON, MANSON, MARSHALLTOWN, MOUNT AYR, NEW MARKET, NEWTON, NORWALK, ODEBOLT, OSCEOLA, OSKALOOSA, OTTUMWA, PANORA, PELLA, PERRY, POMEROY, REINBECK, ROCKWELL CITY, SAC CITY, SCHALLER, SEYMOUR, STUART, TAMA, TOLEDO, TRAER, WALL LAKE, WATERLOO, WAUKEE, WEBSTER CITY, WELLSBURG, AND WINTERSET.
- PRIMARY THREATS INCLUDE,
SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS TO 3 INCHES IN DIAMETER POSSIBLE. ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE. A TORNADO OR TWO POSSIBLE.
PROBABILITY TABLE: PROB OF 2 OR MORE TORNADOES : 20% PROB OF 1 OR MORE STRONG /EF2-EF5/ TORNADOES : 10% PROB OF 10 OR MORE SEVERE WIND EVENTS : 30% PROB OF 1 OR MORE WIND EVENTS >= 75 MPH : 10% PROB OF 10 OR MORE SEVERE HAIL EVENTS : 70% PROB OF 1 OR MORE HAIL EVENTS >= 2 INCHES : 50% PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS : 90% MEAN STORM MOTION /MPH/ : E 30
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 310 IN EFFECT UNTIL 10 AM CDT THIS MORNING FOR THE FOLLOWING AREAS IN IOWA THIS WATCH INCLUDES 38 COUNTIES IN CENTRAL IOWA BOONE DALLAS GRUNDY HAMILTON HARDIN JASPER MARSHALL POLK POWESHIEK STORY TAMA WEBSTER IN NORTHEAST IOWA BLACK HAWK IN SOUTH CENTRAL IOWA APPANOOSE CLARKE DECATUR LUCAS MADISON MAHASKA MARION MONROE RINGGOLD UNION WARREN WAYNE IN SOUTHEAST IOWA DAVIS WAPELLO IN SOUTHWEST IOWA ADAIR ADAMS CASS TAYLOR IN WEST CENTRAL IOWA AUDUBON CALHOUN CARROLL CRAWFORD GREENE GUTHRIE SAC THIS INCLUDES THE CITIES OF ACKLEY, ADAIR, ADEL, ALBIA, ALLERTON, AMES, ATLANTIC, AUDUBON, BAYARD, BEDFORD, BLOOMFIELD, BOONE, CARLISLE, CARROLL, CASEY, CEDAR FALLS, CENTERVILLE, CHARITON, CONRAD, CORNING, CORYDON, CRESTON, DENISON, DES MOINES, DIKE, DYSART, EARLHAM, EARLY, ELDORA, EXIRA, FONTANELLE, FORT DODGE, GLADBROOK, GREENFIELD, GRINNELL, GRUNDY CENTER, GUTHRIE CENTER, HUMESTON, INDIANOLA, IOWA FALLS, JEFFERSON, KNOXVILLE, LAKE CITY, LAKE VIEW, LAMONI, LENOX, LEON, MANSON, MARSHALLTOWN, MOUNT AYR, NEW MARKET, NEWTON, NORWALK, ODEBOLT, OSCEOLA, OSKALOOSA, OTTUMWA, PANORA, PELLA, PERRY, POMEROY, REINBECK, ROCKWELL CITY, SAC CITY, SCHALLER, SEYMOUR, STUART, TAMA, TOLEDO, TRAER, WALL LAKE, WATERLOO, WAUKEE, WEBSTER CITY, WELLSBURG, AND WINTERSET. * PRIMARY THREATS INCLUDE... SCATTERED LARGE HAIL LIKELY WITH ISOLATED VERY LARGE HAIL EVENTS TO 3 INCHES IN DIAMETER POSSIBLE. ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE. A TORNADO OR TWO POSSIBLE. PROBABILITY TABLE: PROB OF 2 OR MORE TORNADOES : 20% PROB OF 1 OR MORE STRONG /EF2-EF5/ TORNADOES : 10% PROB OF 10 OR MORE SEVERE WIND EVENTS : 30% PROB OF 1 OR MORE WIND EVENTS >= 75 MPH : 10% PROB OF 10 OR MORE SEVERE HAIL EVENTS : 70% PROB OF 1 OR MORE HAIL EVENTS >= 2 INCHES : 50% PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS : 90% MEAN STORM MOTION /MPH/ : E 30
The flash flood threat continues this morning. The greatest risk is between Iowa Highway 92 and Iowa Highway 2, centered on U.S. Highway
- Flash flooding is possible outside that band especially in urban areas.
-
WHAT: Flooding caused by excessive rainfall continues to be possible.
-
WHERE: Portions of central, south central, and southeast Iowa, including the following counties, in central Iowa, Jasper and Poweshiek. In south central Iowa, Appanoose, Clarke, Decatur, Lucas, Mahaska, Marion, Monroe, Ringgold, Warren and Wayne. In southeast Iowa, Davis and Wapello.
-
WHEN: Until 11 AM CDT this morning.
-
IMPACTS: Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations.
-
ADDITIONAL DETAILS:
- Training storms with heavy rainfall may lead to localized flash flooding early this morning.
The flash flood threat continues this morning. The greatest risk is between Iowa Highway 92 and Iowa Highway 2, centered on U.S. Highway 34. Flash flooding is possible outside that band especially in urban areas. * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of central, south central, and southeast Iowa, including the following counties, in central Iowa, Jasper and Poweshiek. In south central Iowa, Appanoose, Clarke, Decatur, Lucas, Mahaska, Marion, Monroe, Ringgold, Warren and Wayne. In southeast Iowa, Davis and Wapello. * WHEN...Until 11 AM CDT this morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Training storms with heavy rainfall may lead to localized flash flooding early this morning.
For the latest stream observations and forecasts refer to weather.gov/desmoines/water.
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