Sioux Falls, SD
Weather Forecast Office
IN COOPERATION WITH THE CLAY COUNTY OFFICE OF EMERGENCY MANAGEMENT...THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS COMPLETED THE DAMAGE ASSESSMENT FOR CLAY COUNTY IN NORTHWEST IOWA. THE DAMAGE WAS A RESULT OF NINE TORNADOES THAT OCCURRED DURING THE AFTERNOON HOURS OF JUNE 11, 2004. THERE WERE NO INJURIES AS A RESULT OF THESE TORNADOES...BUT THERE WAS A LOSS OF LIVESTOCK.
THE STRONGEST TORNADO OCCURED WEST OF WEBB AND HAS BEEN RATED AS A F3 ON THE FUJITA SCALE. A F3 TORNADO HAS WIND SPEEDS BETWEEN 158 AND 206 MPH. THIS TORNADO WAS ON THE GROUND FOR OVER 30 MINUTES AND HAD A PATH LENGTH OF 5.8 MILES. ALONG ITS PATH...A STEEL BRIDGE WAS TORN AWAY FROM A ROAD APPROXIMATELY FOUR MILES SOUTHWEST OF WEBB.
Tornado Tracks over Clay County Iowa on June 11, 2004 |
BELOW IS A COMPLETE LISTING OF THE REMAINDER OF THE TORNADOES THAT OCCURRED ACROSS CLAY COUNTY.
A DETAILED TORNADO TRACK MAP IS AVAILABLE ON OUR HOMEPAGE. THE ADDRESS FOR OUR HOMEPAGE IS WWW.CRH.NOAA.GOV/FSD (USE LOWER CASE).
TODD HEITKAMP
WARNING COORDINATION METEOROLOGIST
$$
Popular Pages
Past Weather Events
Regional Weather Roundup
Daily Temp/Precip
Hazardous Weather
Local Climate Archives
Climate Graphs and Data
Seasonal
EvapoTranspiration
Fire Weather
Grassland Fire Danger
Flooding (River)
Summer Weather
Travel Forecasts
Winter Weather
Winter Preparedness
Forecast Snowfall Graphic
Winter Temp Climatology
US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
Sioux Falls, SD
26 Weather Lane
Sioux Falls, SD 57104-0198
605-330-4247
Comments? Questions? Please Contact Us.