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WHAT: Flash flooding caused by excessive rainfall continues to be possible.
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WHERE: Portions of southwestern, central, and northeastern Iowa.
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WHEN: Through Wednesday afternoon.
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IMPACTS: Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations.
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ADDITIONAL DETAILS:
- Several rounds of showers and thunderstorms are likely from this midday today through tonight. While rainfall amounts in some areas will be modest, there will be pockets of heavier rainfall that may lead to flash flooding, especially if multiple rounds fall in the same area. In addition, several more rounds of heavy rainfall are expected later this week, from Wednesday onward, and this watch might need to be extended or succeeded by more watches later.
* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of southwestern, central, and northeastern Iowa. * WHEN...Through Wednesday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Several rounds of showers and thunderstorms are likely from this midday today through tonight. While rainfall amounts in some areas will be modest, there will be pockets of heavier rainfall that may lead to flash flooding, especially if multiple rounds fall in the same area. In addition, several more rounds of heavy rainfall are expected later this week, from Wednesday onward, and this watch might need to be extended or succeeded by more watches later.
For the latest stream observations and forecasts refer to weather.gov/desmoines/water.
THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 669 IN EFFECT UNTIL MIDNIGHT CDT TONIGHT FOR THE FOLLOWING AREAS
IN IOWA THIS WATCH INCLUDES 17 COUNTIES
IN CENTRAL IOWA
BOONE DALLAS POLK
IN SOUTH CENTRAL IOWA
CLARKE MADISON RINGGOLD UNION WARREN
IN SOUTHWEST IOWA
ADAIR ADAMS CASS TAYLOR
IN WEST CENTRAL IOWA
AUDUBON CARROLL CRAWFORD GREENE GUTHRIE
THIS INCLUDES THE CITIES OF ADAIR, ADEL, ATLANTIC, AUDUBON, BAYARD, BEDFORD, BOONE, CARLISLE, CARROLL, CASEY, CORNING, CRESTON, DENISON, DES MOINES, EARLHAM, EXIRA, FONTANELLE, GREENFIELD, GUTHRIE CENTER, INDIANOLA, JEFFERSON, LENOX, MOUNT AYR, NEW MARKET, NORWALK, OSCEOLA, PANORA, PERRY, STUART, WAUKEE, AND WINTERSET.
- PRIMARY THREATS INCLUDE,
A COUPLE TORNADOES POSSIBLE. SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 80 MPH LIKELY. SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE.
PROBABILITY TABLE: PROB OF 2 OR MORE TORNADOES : 40% PROB OF 1 OR MORE STRONG /EF2-EF5/ TORNADOES : 20% PROB OF 10 OR MORE SEVERE WIND EVENTS : 60% PROB OF 1 OR MORE WIND EVENTS >= 75 MPH : 60% PROB OF 10 OR MORE SEVERE HAIL EVENTS : 40% PROB OF 1 OR MORE HAIL EVENTS >= 2 INCHES : 30% PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS : >95% MEAN STORM MOTION /MPH/ : NE 35
THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 669 IN EFFECT UNTIL MIDNIGHT CDT TONIGHT FOR THE FOLLOWING AREAS IN IOWA THIS WATCH INCLUDES 17 COUNTIES IN CENTRAL IOWA BOONE DALLAS POLK IN SOUTH CENTRAL IOWA CLARKE MADISON RINGGOLD UNION WARREN IN SOUTHWEST IOWA ADAIR ADAMS CASS TAYLOR IN WEST CENTRAL IOWA AUDUBON CARROLL CRAWFORD GREENE GUTHRIE THIS INCLUDES THE CITIES OF ADAIR, ADEL, ATLANTIC, AUDUBON, BAYARD, BEDFORD, BOONE, CARLISLE, CARROLL, CASEY, CORNING, CRESTON, DENISON, DES MOINES, EARLHAM, EXIRA, FONTANELLE, GREENFIELD, GUTHRIE CENTER, INDIANOLA, JEFFERSON, LENOX, MOUNT AYR, NEW MARKET, NORWALK, OSCEOLA, PANORA, PERRY, STUART, WAUKEE, AND WINTERSET. * PRIMARY THREATS INCLUDE... A COUPLE TORNADOES POSSIBLE. SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 80 MPH LIKELY. SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE. PROBABILITY TABLE: PROB OF 2 OR MORE TORNADOES : 40% PROB OF 1 OR MORE STRONG /EF2-EF5/ TORNADOES : 20% PROB OF 10 OR MORE SEVERE WIND EVENTS : 60% PROB OF 1 OR MORE WIND EVENTS >= 75 MPH : 60% PROB OF 10 OR MORE SEVERE HAIL EVENTS : 40% PROB OF 1 OR MORE HAIL EVENTS >= 2 INCHES : 30% PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS : >95% MEAN STORM MOTION /MPH/ : NE 35
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