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Weather Alerts for Cass Co.Issued by the National Weather Service |
 SEVERE THUNDERSTORM WATCH |
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| CASS CO. | ||
Areas Affected: Harrison, IA - Monona, IA - Pottawattamie, IA - Shelby, IA - Boone, NE - Burt, NE - Butler, NE - Cass, NE - Colfax, NE - Cuming, NE - Dodge, NE - Douglas, NE - Gage, NE - Jefferson, NE - Johnson, NE - Lancaster, NE - Madison, NE - Otoe, NE - Platte, NE - Saline, NE - Sarpy, NE - Saunders, NE - Seward, NE - Stanton, NE - Thurston, NE - Washington, NE |
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| Effective: Mon, 5/20 11:38pm | Updated: Tue, 5/21 12:00am | Urgency: Future |
| Expires: Tue, 5/21 7:00am | Severity: Severe | Certainty: Possible |
Details:
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 274 UNTIL 7 AM CDT TUESDAY WHICH REPLACES A PORTION OF SEVERE THUNDERSTORM WATCH 271. THE NEW WATCH IS VALID FOR THE FOLLOWING AREAS IN IOWA THE NEW WATCH INCLUDES 4 COUNTIES IN SOUTHWEST IOWA HARRISON POTTAWATTAMIE SHELBY IN WEST CENTRAL IOWA MONONA IN NEBRASKA THE NEW WATCH INCLUDES 22 COUNTIES IN EAST CENTRAL NEBRASKA BURT BUTLER DODGE DOUGLAS SARPY SAUNDERS WASHINGTON IN NORTHEAST NEBRASKA BOONE COLFAX CUMING MADISON PLATTE STANTON THURSTON IN SOUTHEAST NEBRASKA CASS GAGE JEFFERSON JOHNSON LANCASTER OTOE SALINE SEWARD THIS INCLUDES THE CITIES OF ALBION, ASHLAND, BEATRICE, BELLEVUE, BLAIR, COLUMBUS, COUNCIL BLUFFS, CRETE, DAVID CITY, DECATUR, DUNLAP, FAIRBURY, FREMONT, HARLAN, LA VISTA, LINCOLN, LOGAN, LYONS, MACY, MAPLETON, MILFORD, MISSOURI VALLEY, NEBRASKA CITY, NORFOLK, OAKLAND, OMAHA, ONAWA, PAPILLION, PENDER, PLATTSMOUTH, SCHUYLER, SEWARD, ST. EDWARD, STANTON, STERLING, TECUMSEH, TEKAMAH, WAHOO, WALTHILL, WEST POINT, WILBER, WINNEBAGO, WISNER, WOODBINE, AND YUTAN. |
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 FLOOD WATCH |
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| CASS CO. | ||
Areas Affected: Mills - Montgomery - Fremont - Page - Seward - Lancaster - Cass - Otoe - Saline |
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| Effective: Mon, 5/20 7:14pm | Updated: Tue, 5/21 12:00am | Urgency: Future |
| Expires: Tue, 5/21 3:15am | Severity: Severe | Certainty: Possible |
Details:
The best chances for heavy rain overnight has been shifting south. As a result, have trimmed a few northern counties off of the watch and added a few counties on the southern edge of the watch. * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of southwest Iowa, including the following counties, Fremont, Mills, Montgomery and Page and southeast Nebraska, including the following counties, Cass, Lancaster, Otoe, Saline and Seward. * WHEN...Through Tuesday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Multiple rounds of heavy precipitation is expected with an increasing potential for training thunderstorms to develop after midnight. A second round of heavy rain is expected Tuesday late morning and afternoon. This will bring the threat for flash flooding and river flooding across portions of northeast Nebraska, east-central Nebraska, and west- central Iowa. - http://www.weather.gov/safety/flood Information: You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. |
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