BULLETIN – IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
857 PM CDT SAT MAY 21 2011

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
NORTHWESTERN MILLS COUNTY IN SOUTHWEST IOWA…
WESTERN POTTAWATTAMIE COUNTY IN SOUTHWEST IOWA…
NORTHEASTERN SARPY COUNTY IN EAST CENTRAL NEBRASKA…

* UNTIL 930 PM CDT

* AT 852 PM CDT…NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS
STORM WAS LOCATED NEAR OFFUTT AFB…OR 13 MILES SOUTH OF OMAHA…
AND MOVING NORTHEAST AT 30 MPH. ANOTHER POSSIBLY SEVERE STORM WAS
DEVELOPING ALONG THE MISSOURI RIVER NEAR COUNCIL BLUFFS THIS STORM
WILL MOVE TOWARD NEOLA.

* LOCATIONS IMPACTED INCLUDE…
OMAHA…BELLEVUE…COUNCIL BLUFFS…TREYNOR…UNDERWOOD…LAKE
MANAWA STATE PARK…CARTER LAKE…CRESCENT…SILVER CITY…
MCCLELLAND AND NEOLA.

THE WARNED AREA INCLUDES INTERSTATE 80 IN IOWA BETWEEN MILE MARKERS
17 AND 8.

THE WARNED AREA INCLUDES INTERSTATE 29 IN IOWA BETWEEN MILE MARKERS
42 AND 66.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR…DESTRUCTIVE HAIL…DEADLY LIGHTNING…AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST LEVEL OF YOUR
HOME OR BUSINESS. HEAVY RAIN CAN QUICKLY FLOOD ROADS…SO DO NOT
DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.