MétéoMédia
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Alertes en vigueurSaint Marys, IA

Cartes météo
Veille d’orage violent
Émis à mar. 06:15 mai. 21
Publié par : National Weather Service
Description
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH275 IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON FOR THE FOLLOWINGAREASIN IOWA THIS WATCH INCLUDES 38 COUNTIESIN CENTRAL IOWABOONE DALLAS GRUNDYHAMILTON HARDIN JASPERMARSHALL POLK POWESHIEKSTORY TAMA WEBSTERIN NORTHEAST IOWABLACK HAWKIN SOUTH CENTRAL IOWAAPPANOOSE CLARKE DECATURLUCAS MADISON MAHASKAMARION MONROE RINGGOLDUNION WARREN WAYNEIN SOUTHEAST IOWADAVIS WAPELLOIN SOUTHWEST IOWAADAIR ADAMS CASSTAYLORIN WEST CENTRAL IOWAAUDUBON CALHOUN CARROLLCRAWFORD GREENE GUTHRIESACTHIS 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 DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75MPH POSSIBLE.ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER 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 : 50%PROB OF 1 OR MORE WIND EVENTS >= 75 MPH : 50%PROB OF 10 OR MORE SEVERE HAIL EVENTS : 30%PROB OF 1 OR MORE HAIL EVENTS >= 2 INCHES : 10%PROB OF 6 OR MORE COMBINED SEVERE HAIL/WIND EVENTS : 70%MEAN STORM MOTION /MPH/ : E 50
Détails complets  
Alerte des crues éclair
Émis à mar. 04:20 mai. 21
Publié par : National Weather Service
Action Recommandée

You should monitor later forecasts and be prepared to take actionshould Flash Flood Warnings be issued.For the latest river and stream observations and forecasts refer toweather.gov/desmoines/water.

Description

* WHAT...Flash flooding caused by excessive rainfall continues to bepossible.* WHERE...Portions of central, north central, northeast, northwest,south central, southwest, and west central Iowa, including thefollowing counties, in central Iowa, Boone, Dallas, Grundy,Hamilton, Hardin, Jasper, Marshall, Polk, Poweshiek, Story, Tamaand Webster. In north central Iowa, Butler, Cerro Gordo, Franklin,Hancock, Humboldt, Kossuth, Winnebago, Worth and Wright. Innortheast Iowa, Black Hawk and Bremer. In northwest Iowa, Emmet,Palo Alto and Pocahontas. In south central Iowa, Madison, Mahaska,Marion and Warren. In southwest Iowa, Adair and Cass. In westcentral Iowa, Audubon, Calhoun, Carroll, Crawford, Greene, Guthrieand Sac.* WHEN...Through this evening.* IMPACTS...Excessive runoff may result in flooding of rivers,creeks, streams, and other low-lying and flood-prone locations.Flooding may occur in poor drainage and urban areas.* ADDITIONAL DETAILS...- 3 to 5 inches of rain have already fallen over portions ofnorthern and north central Iowa. Slow moving storms withefficient rainfall rates will continue through the earlymorning hours, and could impact the morning commute.

Bulletin météorologique spécial
Émis à mar. 09:03 mai. 21
Publié par : National Weather Service
Action Recommandée

Remain alert for a possible tornado! Tornadoes can develop quicklyfrom severe thunderstorms. If you spot a tornado go at once into thebasement or small central room in a sturdy structure.For your protection move to an interior room on the lowest floor of abuilding.To report severe weather contact your nearest law enforcement agency.They will send your report to the National Weather Service office inDes Moines .Intense thunderstorm lines can produce brief tornadoes and widespreadsignificant wind damage. Although a tornado is not immediatelylikely, it is best to move to an interior room on the lowest floor ofa building. These storms may cause serious injury and significantproperty damage.

Description

At 903 AM CDT, severe thunderstorms were located along a lineextending from near Jordan Creek Town Center to Spring Hill to 4miles southeast of St. Marys, moving east at 45 mph.HAZARD...70 mph wind gusts and quarter size hail.SOURCE...Radar indicated.IMPACT...Hail damage to vehicles is expected. Expect considerabletree damage. Wind damage is also likely to mobile homes,roofs, and outbuildings.Locations impacted include...Des Moines, West Des Moines, Ankeny, Urbandale, Johnston, Clive,Indianola, Altoona, Waukee, Norwalk, Pleasant Hill, Grimes, Adel,Windsor Heights, Carlisle, Bondurant, Polk City, Saylorville,Mitchellville, and Dallas Center.This includes the following highways...Interstate 35 between mile markers 47 and 72, and between milemarkers 87 and 99.Interstate 80 between mile markers 110 and 147.Interstate 235 between mile markers 1 and 14.