Boone County Sheriffs Office, IA Weather Warnings
Thunderstorm
Severe Thunderstorm Warning issued July 20 at 6:21PM CDT until July 20 at 7:15PM CDT by NWS Des Moines IA SVRDMX The National Weather Service in Des Moines has issued a * Severe Thunderstorm Warning for... Boone County in central Iowa... * Until 715 PM CDT. * At 621 PM CDT, a severe thunderstorm was located over Boxholm, or 12 miles northwest of Boone, moving southeast at 25 mph. HAZARD...60 mph wind gusts and half dollar size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Boone, Ogden, Boone Speedway, Boxholm, Pilot Mound, Luther, Fraser, Boone Municipal Airport, and Ledges State Park. Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. A Tornado Watch remains in effect until 1000 PM CDT for central and west central Iowa.
National Weather Service
Wind
Tornado Watch issued July 20 at 6:17PM CDT until July 20 at 10:00PM CDT by NWS Des Moines IA TORNADO WATCH 500 REMAINS VALID UNTIL 10 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN IOWA THIS WATCH INCLUDES 19 COUNTIES IN CENTRAL IOWA BOONE DALLAS GRUNDY HAMILTON HARDIN JASPER MARSHALL POLK POWESHIEK STORY TAMA WEBSTER IN SOUTH CENTRAL IOWA MADISON MAHASKA MARION WARREN IN SOUTHWEST IOWA ADAIR IN WEST CENTRAL IOWA GREENE GUTHRIE THIS INCLUDES THE CITIES OF ACKLEY, ADAIR, ADEL, AMES, BAYARD, BOONE, CARLISLE, CASEY, CONRAD, DES MOINES, DIKE, DYSART, EARLHAM, ELDORA, FONTANELLE, FORT DODGE, GLADBROOK, GREENFIELD, GRINNELL, GRUNDY CENTER, GUTHRIE CENTER, INDIANOLA, IOWA FALLS, JEFFERSON, KNOXVILLE, MARSHALLTOWN, NEWTON, NORWALK, OSKALOOSA, PANORA, PELLA, PERRY, REINBECK, STUART, TAMA, TOLEDO, TRAER, WAUKEE, WEBSTER CITY, WELLSBURG, AND WINTERSET. * PRIMARY THREATS INCLUDE... A FEW TORNADOES LIKELY WITH A COUPLE INTENSE TORNADOES POSSIBLE. SCATTERED DAMAGING WINDS LIKELY WITH ISOLATED SIGNIFICANT GUSTS TO 75 MPH POSSIBLE. SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2.5 INCHES IN DIAMETER POSSIBLE.
National Weather Service
High temperature
Heat Advisory issued July 20 at 4:00PM CDT until July 20 at 8:00PM CDT by NWS Des Moines IA * WHAT...Heat index values of 100-105+ expected. * WHERE...Portions of central, south central, southeast, southwest, and west central Iowa. * WHEN...Until 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
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