The National Weather Service in La Crosse has issued a Flash Flood Watch in effect until 6am Tuesday Morning for the following counties.
Mitchell, Howard, Winneshiek, Allamakee, Floyd, Chickasaw, Fayette, Clayton.
The Tornado Warning in Cerro Gordo County has been cancelled. The storm has moved out of the warned area.

BULLETIN – EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA
341 PM CDT MON JUL 7 2008

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
SHELBY COUNTY IN SOUTHWEST IOWA…

* UNTIL 415 PM CDT.

* AT 337 PM CDT…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS OF 60 TO
70 MPH. THIS STORM WAS LOCATED 7 MILES SOUTH OF IRWIN…OR 51
MILES NORTHEAST OF OMAHA…AND MOVING NORTHEAST AT 33 MPH.

* LOCATIONS IMPACTED INCLUDE…
IRWIN…

THE WARNED AREA INCLUDES HIGHWAY 59 IN IOWA BETWEEN MILE MARKERS 67
AND 85.

IF YOU ARE IN THE WARNED AREA…PREPARE FOR DAMAGING WINDS…LARGE
HAIL…HEAVY RAIN AND DANGEROUS LIGHTNING. GET INTO A REINFORCED
BUILDING. STAY AWAY FROM WINDOWS AND GLASS DOORS.

WINDS OF 60 MPH OR STRONGER ARE POSSIBLE. FOR YOUR PROTECTION…GO TO
THE LOWEST LEVEL OF YOUR HOME OR BUSINESS. STAY AWAY FROM WINDOWS.