A cold front triggered scattered severe thunderstorms in the late afternoon and early evening of July 8. Numerous trees were blown from Gilman, WI all the way into eastern parts of Taylor County.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS ARX wrote it up.
A cold front triggered scattered severe thunderstorms in the late afternoon and early evening of July 8. Numerous trees were blown from Gilman, WI all the way into eastern parts of Taylor County. Trees fell on power lines in some cases and corn was flattened in at least two fields.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS La Crosse, WI wrote its last area forecast discussion before the first event at Jul 8, 2:00 PM CST, 1 hour 40 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LA CROSSE WI 300 PM CDT SUN JUL 8 2007 .SHORT TERM...TONIGHT THROUGH WEDNESDAY NIGHT FORECAST CONCERNS FOR THIS PACKAGE INCLUDE RAIN CHANCES THROUGH THE PERIOD ALONG WITH SEVERE WEATHER THREATS BOTH TONIGHT AND TUESDAY. TEMPERATURES ALSO A CONCERN. EARLY THIS AFTERNOON WATER VAPOR IMAGERY SHOWS SHORTWAVE ACROSS EASTERN SOUTH DAKOTA...WITH A SECONDARY WAVE IN EASTERN WYOMING. 18Z SURFACE ANALYSIS SHOWS COLD FRONT EXTENDING FROM NEAR IRONWOOD MICHIGAN...TO SOUTHWEST MINNESOTA. CONVECTION HAS FIRED OVER THE PAST HOURS JUST BEHIND FRONT IN CENTRAL MINNESOTA INTO WESTERN WISCONSIN. LAPS DATA SHOWING CONVECTIVE INHIBITION WEAKENING ACROSS THE WARM SECTOR WITH MIXED LAYER CAPES IN EXCESS OF 3000 J/KG. 12Z 08JUL07 MODELS ARE SIMILAR IN THEIR SOLUTIONS THROUGH THE PERIOD WITH BOTH THE GFS AND NAM SHOWING A FASTER AND STRONGER TREND WITH THE VIGOROUS SHORTWAVE MOVING ALONG THE CANADIAN BORDER TUESDAY. IN THE NEAR TERM...EXPECT CONVECTION TO CONTINUE TO FIRE ALONG AND JUST BEHIND SURFACE COLD FRONT THROUGH THE EVENING HOURS AS SHORTWAVE OVER SOUTH DAKOTA MOVES INTO MINNESOTA. MID LEVEL COOLING ASSOCIATED WITH THE WAVE WILL CONTINUE TO ERODE ANY CONVECTIVE INITIATION. EFFECTIVE SHEAR OFF LATEST SPC MESO-ANALYSIS SHOWS 30 TO 40 KNOTS ACROSS THE FORECAST AREA WITH ML CAPES OF 3000 J/KG. WITH FREEZING LEVELS NEAR 15K FEET EXPECT MAIN THREAT TO BE WINDS WITH HAIL THE SECONDARY THREAT. INSTABILITY WEAKENS LATER THIS EVENING AS FRONT CONTINUES TO SLOWLY PUSH SOUTH ACROSS THE FORECAST AREA. HAVE ADDED SOME ADDITIONAL TIMING TO THE POP/WX GRIDS TONIGHT BASED ON MOVEMENT OF THE FRONT. FRONT PUSHES JUST SOUTH OF THE FORECAST AREA MONDAY WITH CAPES BUILDING ONCE AGAIN IN THE AFTERNOON. HAVE KEPT THE CHANCE POPS GOING ACROSS THE SOUTH THROUGH MONDAY NIGHT AS FRONT NEVER MAKES IT TO FAR SOUTH. HOWEVER ENOUGH COOL AIR TO SLIP IN TO BRING AN END TO THE 90+ DEGREE HEAT OF THE PAST SEVERAL DAYS. WITH TEMPERATURES RETURNING TO BACK NEAR NORMALS. MORE POTENT SHORT WAVE TROUGH DROPS INTO NORTHERN MIDWEST ON TUESDAY AND WITH STRONGER WIND FLOW AND BOUNDARY RETURNING AS A WARM FRONT...LOOKS LIKE A BETTER CHANCE OF SEVERE WEATHER TUESDAY AFTERNOON AND EVENING. TIMING AND STRONGER WIND SHEAR PARAMETERS MAY ALSO AID SEVERE WEATHER THREAT. AS MENTIONED BEFORE BOTH GFS AND NAM SHOWING A STRONGER AND FASTER TREND WITH THIS FEATURE. TIMING AND STRONGER WIND SHEAR PARAMETERS MAY ALSO AID SEVERE WEATHER THREAT. FRONT WILL PUSH SOUTH OF THE AREA TUESDAY EVENING WITH DRIER AIR FILTERING INTO THE REGION. HAVE ADDED SOME TIMING TO THE GRIDS BASED ON THIS WITH ONLY POPS DURING THE EVENING HOURS. QUIET AND COOLER WEATHER EXPECTED ON WEDNESDAY/WEDNESDAY NIGHT AS FLOW BECOMES MORE AMPLIFIED WITH RIDGE BUILDING ACROSS THE WESTERN CONUS SHIFTING THE FORECAST AREA INTO A COOL NORTHWEST FLOW. .LONG TERM...THURSDAY THROUGH SUNDAY ALL THE MEDIUM RANGE MODELS SHOW A HIGHLY AMPLIFIED PATTERN THROUGH THE PERIOD WITH RIDGING ACROSS THE WESTERN CONUS AND TROUGHING IN THE EAST. THIS WOULD PLACE THE FORECAST AREA IN A NORTHWEST FLOW REGIME. 00Z ECMWF DOES WANT TO HANG ON TO THE RIDGE LONGER ACROSS THE WEST VERSUS THE 06Z GFS WHICH BEGINS TO BREAK IT DOWN LATER IN THE WEEKEND. PER NATIONAL DISCUSSION PREFER THE ECMWF IN KEEPING THE RIDGING ACROSS THE WEST. DIFFICULTIES IN THIS PATTERN ARE IN THE DETAILS AS WEAK IMPULSES LIKELY TO RIDE DOWN ACROSS THE AREA... WITH THE QUESTION BEING TIMING. CERTAINLY CANNOT RULE OUT A FEW SHOWERS WITH THESE IMPULSES...BUT WHEN AND WHERE IS PROBLEMATIC. 00Z GFS ENSEMBLES ONLY SHOWING VERY LOW PROBABILITIES FOR MEASURABLE IN THIS TIME FRAME. WILL ADD LOW POPS FOR THE NORTH SATURDAY AND ACROSS THE AREA SUNDAY. RABERDING && .AVIATION... APPROACHING SHORT WAVE FROM NORTHERN PLAINS EXPECTED TO INTERACT WITH COLD FRONT PUSHING INTO UPPER MISSISSIPPI VALLEY. AS THE FRONT SINKS SOUTHWARD...POST FRONTAL SCATTERED CONVECTION SHOULD IMPACT RST AND LSE DURING THE EVENING HOURS. IN ADDITION TO RST AND LSE TAF...PLEASE REFERENCE LATEST AVIATION WEATHER CENTER COLLABORATIVE CONVECTIVE FORECAST PRODUCT (CCFP) ON THE INTERNET FOR MORE DETAILS. DUE TO EXPECTED SCATTERED NATURE OF THUNDERSTORMS...HAVE CONTINUED VCTS AT BOTH TAF SITES UNTIL CONFIDENCE GROWS HIGH ENOUGH TO ADD DETAILS...WHICH SHOULD OCCUR WITH NEXT REGULARLY SCHEDULED TAF ISSUANCE AT ABOUT 2330Z THIS EVENING. FRONT ANTICIPATED TO ONLY MOVE GRADUALLY SOUTHWARD TONIGHT...WITH POST FRONTAL CONVECTION STILL A GOOD POSSIBILITY INTO THE OVERNIGHT HOURS. AS A RESULT...ADDED SHOWERS TO BOTH TAF SITES FOR THE LATE NIGHT HOURS BASED ON FURTHER INTERACTION OF FRONT WITH ADDITIONAL UPPER LEVEL DISTURBANCES. BY 12Z 09JUL07...SHOWERS EXPECTED TO BE SOUTH OF RST AND LSE...WITH VFR CONDITIONS THROUGH MONDAY MORNING. THOMPSON && .ARX WATCHES/WARNINGS/ADVISORIES... WI...NONE. MN...NONE. IA...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LA CROSSE WI 237 PM CDT SUN JUL 8 2007 IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029- 032>034-041>044-053>055-061-091100- ADAMS-ALLAMAKEE-BUFFALO-CHICKASAW-CLARK-CLAYTON-CRAWFORD-DODGE- FAYETTE-FILLMORE-FLOYD-GRANT-HOUSTON-HOWARD-JACKSON-JUNEAU- LA CROSSE-MITCHELL-MONROE-MOWER-OLMSTED-RICHLAND-TAYLOR-TREMPEALEAU- VERNON-WABASHA-WINNESHIEK-WINONA- 237 PM CDT SUN JUL 8 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHEAST IOWA... SOUTHEAST MINNESOTA AND SOUTHWEST INTO CENTRAL WISCONSIN. .DAY ONE...THIS AFTERNOON AND TONIGHT HIGHS ARE EXPECTED TO BE IN THE UPPER 80S TO MID 90S AGAIN THIS AFTERNOON WITH HEAT INDICES OF 95 TO 105 DURING THE AFTERNOON HOURS...ESPECIALLY ALONG AND SOUTH OF INTERSTATE 90. SUNSTROKE...HEAT CRAMPS AND HEAT EXHAUSTION ARE POSSIBLE WITH PROLONGED EXPOSURE TO... OR PHYSICAL ACTIVITY IN THESE HEAT INDEX VALUES. A CHANCE OF THUNDERSTORMS WILL SPREAD ACROSS THE AREA LATE THIS AFTERNOON AND EVENING AS A COLD FRONT PUSHES SOUTH AND INTERACTS WITH THE WARM AND UNSTABLE AIRMASS OVER THE AREA. WIDESPREAD...ORGANIZED SEVERE STORMS ARE NOT EXPECTED...BUT WITH THE UNSTABLE AIRMASS OVER THE AREA AND THE FRONT MOVING IN AN ISOLATED SEVERE STORMS WILL BE POSSIBLE. THE GREATEST SEVERE THREAT WILL BE IN THE 4 PM TO 9 PM TIME FRAME...ESPECIALLY OVER PARTS OF SOUTHEAST MINNESOTA...WESTERN AND NORTH CENTRAL WISCONSIN. THE MAIN SEVERE THREATS LOOK TO BE LARGE HAIL AND DAMAGING WINDS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THUNDERSTORM CHANCES CONTINUE ALONG AND SOUTH OF INTERSTATE 90 ON MONDAY AS THIS FIRST FRONT REMAINS CLOSE TO THE AREA. DUE TO LIMITED INSTABILITY...ANY STORMS ON MONDAY ARE NOT EXPECTED TO BE SEVERE. ANOTHER STRONG COLD FRONT IS EXPECTED TO MOVE EAST ACROSS THE AREA TUESDAY AFTERNOON AND EVENING. INSTABILITY WILL INCREASE AHEAD OF THIS FRONT ON TUESDAY. WITH MODERATE TO STRONG WINDS ALOFT...THERE IS A SLIGHT RISK OF SEVERE STORMS ACROSS THE ENTIRE AREA TUESDAY AFTERNOON AND EVENING ALONG AND AHEAD OF THE COLD FRONT. THE MAIN THREATS AT THIS TIME LOOK TO BE DAMAGING WINDS AND LARGE HAIL. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE NEEDED BETWEEN 4 PM AND 9 PM THIS AFTERNOON AND EVENING OVER PARTS SOUTHEAST MINNESOTA...WESTERN AND NORTH CENTRAL WISCONSIN. MORE WIDESPREAD SPOTTER ACTIVATION MAY BE NEEDED TUESDAY AFTERNOON AND EVENING. .EMERGENCY MANAGEMENT COORDINATION... NO CALL IS SCHEDULED. RRS/DTJ
The La Crosse radar (KARX), 153 km away, was scanning. The volume nearest the first event began at 21:38 UTC.
3 thunderstorm wind. Local standard time, as filed.
Trees were knocked down, including one on a garage.
Trees were blown down and two fields had flattened corn. Damage was also reported along County Road M towards the Lincoln County line.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2007Every state in 2007This day in weather historyWarnings in Wisconsin, July 2007
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 48235, 31991, 48242.