Waarschuwingen

Flood Watch issued June 21 at 6:49PM CDT until June 22 at 1:00PM CDT by NWS Des Moines IAA moderate risk of heavy rainfall and flash flooding is forecastover northern Iowa through the overnight. Storms will be increasingin coverage this evening, with the heaviest rainfall expected laterthis evening to early Saturday morning. Some uncertainty remains asto the exact axis of heaviest rainfall, but current indications arethat the heaviest rainfall in north central Iowa will be generallybetween Highway 20 and the Iowa Minnesota border. If you live in ornear the watch, please monitor the weather closely this evening andtonight. Review flooding safety plans now and be prepared if youmust take action.* WHAT...Flooding caused by excessive rainfall continues to bepossible.* WHERE...Portions of north central and northwest Iowa, includingthe following counties, in north central Iowa, Cerro Gordo,Hancock, Kossuth, Winnebago and Worth. In northwest Iowa, Emmetand Palo Alto.* WHEN...Through Saturday afternoon.* IMPACTS...Excessive runoff may result in flooding of rivers,creeks, streams, and other low-lying and flood-prone locations.Creeks and streams may rise out of their banks. Flooding may occurin poor drainage and urban areas. Low-water crossings may beflooded. Extensive street flooding and flooding of creeks andrivers are possible.* ADDITIONAL DETAILS...- Expected rainfall totals may exceed 4 to 7 inches in someareas with locally higher amounts are possible. Rapid risesin creeks, streams and urban flooding will be possible. Fieldflooding and washed out county roads will also be possible.Rainfall rates may approach 2 inches per hour in the heavierstorms. Nighttime flooding is especially dangerous due tothe lack of light and ability to see flooding impacts.For the latest river and stream observations and forecasts refer toweather.gov/desmoines/water.

National Weather Service

Flood Warning issued June 21 at 9:30PM CDT until June 26 at 1:00PM CDT by NWS Des Moines IA...The National Weather Service in Des Moines IA has issued a FloodWarning for the following rivers in Iowa...Winnebago River at Mason City affecting Cerro Gordo, Worth andFloyd Counties..The river forecast for the Winnebago River at Mason City has beenadjusted upward and now reflects the potential for major flooding.However, note that this is conditional, and dependent on theforecast rainfall which is on the order of three or more inches ofrain across the river basin through Sunday morning.* WHAT...Major flooding is forecast.* WHERE...The Winnebago River at Mason City, or from Beaver Creeknear Fertile to the Shell Rock River near Rockford.* WHEN...From Saturday morning to early Wednesday afternoon.* IMPACTS...At 11.0 feet, Sandbagging occurs on the dike from 12thSt NE to Carolina St.At 15.0 feet, This is the approximate top of levee protection.Levees run from the 12th St NE bridge to 9th St along the eastbank and also from 8th St to 6th St and Hampshire St.* ADDITIONAL DETAILS...- At 8:30 PM CDT Friday the stage was 6.8 feet.- Forecast...The river is expected to rise above flood stagetomorrow morning to a crest of 16.3 feet early Sundaymorning. It will then fall below flood stage early Wednesdaymorning.- Flood stage is 10.0 feet.For the latest river and stream observations and forecasts refer toweather.gov/desmoines/water.Turn around, don't drown when encountering flooded roads. Most flooddeaths occur in vehicles.River forecasts include observed precipitation plus forecastprecipitation through Sunday morning. This would be the secondhighest crest on record.

National Weather Service