During the afternoon of June 19, a cold front triggered thunderstorms with damaging winds, which affected a small part of central Wisconsin. Trees were knocked down near Grand Marsh.
Every event with a place to put it. Tap one for its entry below.
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.
During the afternoon of June 19, a cold front triggered thunderstorms with damaging winds, which affected a small part of central Wisconsin. Trees were knocked down near Grand Marsh.
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 Jun 19, 2:00 PM CST, 0 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE LA CROSSE WI 300 PM CDT FRI JUN 19 2009 .SHORT TERM...TONIGHT THROUGH MONDAY NIGHT FORECAST CONCERNS STAY ON THE PCPN CHANCES...TONIGHT...THEN AGAIN ON SUNDAY. THIS EVENING...SFC TROUGH MOVING EAST/SOUTHEAST ACROSS THE REGION CURRENTLY...WITH STORMS STARTING TO RE-FIRE ALONG THIS BOUNDARY OVER CENTRAL WI. INSTABILTY HAS GROWN...WITH RUC SBCAPES AROUND 2000 J/KG OR GREATER ALONG AND AHEAD OF THE BOUNDARY. THE WIND SHEAR IS NOT AS AMPLE AS PREVIOUS DAYS...BUT STILL IN THE 35 TO 40 KT RANGE IN THE 0-6 KM RANGE...AND SUPERCELLS CAN/T BE RULED OUT. WARM CLOUD DEPTHS CONTINUE THICK THOUGH...3.5-4 KM...WHICH SUPPORTS HEAVY RAIN AND CAN CUT INTO THE POTENTIAL FOR LARGE HAIL. OVERALL...THE BEST STORM CHANCES THIS EVENING WILL BE EAST AND SOUTH...GRADUALLY EXITING THIS WAY OVERNIGHT. SEVERE WILL STILL BE A POSSIBILITY TONIGHT...WITH THAT ADDED THREAT FOR HEAVY/POTENTIALLY FLOODING RAINS. OVERNIGHT...A RIDGE OF HIGH PRESSURE...BOTH AT THE SFC AND A LOFT...WILL START TO BUILD INTO THE REGION FROM THE WEST...SLIDING OVER THE UPPER MISSISSIPPI RIVER VALLEY BY 00Z SUN. SUBSIDENCE AND GOOD DRYING SHOULD BRING CLEARING SKIES...AND A DRY AND SUNNY DAY FOR SATURDAY. THE RESPITE FROM THE STORMY CONDITIONS WILL BE SHORT-LIVED THOUGH...AS AN UPPER LEVEL SHORTWAVE TROUGH KICKS NORTHEAST OUT OF A LONG WAVE TROUGH OVER THE WEST COAST. THIS PACKET OF ENERGY WILL SPIN ACROSS THE PLAINS AND INTO MN BY SUN AFTERNOON. SOME 850 MB WARM AIR/ISENTROPIC ADVECTION WILL ACCOMPANY THIS FEATURE...WITH A 30 KT LOW LEVEL JET AND THE NOSE OF THE 850 MB MOISTURE TRANSPORT VECTORS PUSHING INTO/TROUGH THE FORECAST AREA. A CLUSTER OF SHOWERS/STORMS SHOULD RESULT...WITH THE 19.12Z GFS/NAM PLACING THE BEST CHANCES ACROSS MN. WIND PROFILES LOOK FAVORABLE FOR STORM DEVELOPMENT AT THIS TIME...WITH INSTABILITIES IN THE 2000-3000 J/KB //SBCAPE// OVER MN/IA SUN AFTERNOON. SOME STRONG TO SEVERE STORM POTENTIAL WOULD EXIST IF THIS IS REALIZED. THIS SYSTEM EASES NORTHEAST OVERNIGHT SUNDAY. ON MONDAY...BOTH THE GFS AND NAM HINT AT A WEAKER SHORTWAVE TROUGH WORKING WITH A BRANCH OF THE LOW LEVEL JET/MOISTURE RETURN TO TRIGGER MORE SHOWERS/STORMS IN THE NORTHERN PLAINS/MN REGION. THE GFS IS MORE ROBUST WITH THIS FEATURE COMPARED TO THE NAM. THIS PROGGED SHORTWAVE IS MUCH WEAKER THAN THE ONE FOR SUNDAY...AND STILL HAS SOME OF THE UPPER LEVEL RIDGING TO CONTEND WITH. NOT OVERLY EXCITED WITH THIS AT THE MOMENT...AND WILL LEAN TOWARD THE PCPN CHANCES STAYING WEST OF THE FORECAST AREA FOR NOW. .LONG TERM...TUESDAY THROUGH FRIDAY THE TRENDS CONTINUE IN THE EXTENDED...AS THE GFS AND ECMWF BRINGING AND UPPER LEVEL SHORTWAVE TROUGH ACROSS THE TOP OF THE RIDGE...BREAKING IT DOWN...AND SLIDING SHORTWAVE ENERGY AND A SFC FRONT ACROSS THE REGION ON WED NIGHT/THU. PRIOR TO THIS...THE RIDGE MAY BE STRONG ENOUGH TO SHUFFLE ANY OTHER BITS OF UPPER LEVEL ENERGY TO THE WEST AND NORTH OF THE FORECAST AREA. THEN FOR FRIDAY...AGAIN THE GFS AND EC WANT TO DRIVE AN UPPER LEVEL TROUGH ACROSS THE NORTHERN PLAINS AND ACROSS THE UPPER MISSISSIPPI RIVER VALLEY. THE CURRENT TRACK WOULD TAKE THE BULK OF THE PCPN CHANCES WITH THIS FEATURE ACROSS IA AND INTO CENTRAL ILL. AS FOR TEMPERATURES...IT WOULD APPEAR THAT SUMMER MAY BE HERE TO STAY...WITH HIGHS EXPECTED TO BE IN THE MID TO UPPER 80S FOR MUCH OF NEXT WEEK. && .AVIATION... A TROUGH OF LOW PRESSURE HAS SHIFTED EAST THROUGH BOTH TAF SITES ALLOWING THE WINDS TO COME AROUND THE WEST SOUTHWEST. THE MAIN COLD FRONT IS STILL TO THE WEST FROM NORTH CENTRAL MINNESOTA INTO SOUTH DAKOTA. AS A SHORT WAVE TROUGH MOVES EAST ACROSS IOWA THROUGH THE EVENING...THE CONCERN IS FOR REDEVELOPMENT OF THUNDERSTORMS ALONG BOTH SURFACE FEATURES. THE BEST MOISTURE CONVERGENCE IS ALONG THE TROUGH OF LOW PRESSURE. THE 19.18Z RUC SUGGEST THE BEST MOISTURE TRANSPORT WILL OCCUR INTO THE TROUGH ACROSS SOUTHERN IOWA THIS AFTERNOON AND THEN INTO NORTHERN ILLINOIS AND SOUTHEAST WISCONSIN THIS EVENING. THIS SHOULD ALLOW THE BEST DEVELOPMENT TO OCCUR ALONG THE TROUGH AND STAY SOUTHEAST OF BOTH TAF SITES. HOWEVER...THE BEST INSTABILITY IS OUT AHEAD OF THE COLD FRONT AND SEVERAL MESO SCALE MODELS SUGGEST AT LEAST SOME SCATTERED ACTIVITY DEVELOPING ALONG THE FRONT. HAVE HONORED THIS IN THE TAFS BY INCLUDING A CB THROUGH THE LATE AFTERNOON OR EARLY EVENING. THE COLD FRONT IS EXPECTED TO MOVE THROUGH BOTH TAF SITES BY 20.06Z BUT NOT EXPECTING TO SEE MUCH OF A WIND SHIFT WHICH MAY DELAY THE ARRIVAL OF THE DRIER AIR AND HAVE INCLUDED A PERIOD OF MVFR VISIBILITIES FOR SOME FOG LATE TONIGHT. 04 && .HYDROLOGY... A COUPLE DAYS OF HEAVY RAINS HAVE LEFT PORTIONS OF THE LOCAL AREA...MOSTLY NORTHEAST IOWA AND SOUTHWEST WISCONSIN...SOGGY. 3 HOUR FFG GUIDANCE IN THESE AREAS RANGE IN THE 1.5-2 INCH RANGE. WITH WARM/MOIST AIR CONTINUING TO POOL INTO A SFC BOUNDARY SAGGING EAST/SOUTHEAST ACROSS THE REGION...AND A WARM CLOUD DEPTH OF 3.5-4 KM...HEAVY RAIN WILL OCCUR WITH THE STRONGER STORMS THIS EVENING. AT THE MOMENT THOUGH...THE MAIN AXIS FOR THE STRONGER //POSSIBLY SEVERE// THUNDERSTORMS...AND THUS THE HEAVY RAINS...LOOKS TO LIE FROM SOUTHEAST WI INTO EASTERN IA. WITH THIS IN MIND...HAVE OPTED TO NOT GO WITH A FLASH FLOOD WATCH FOR PORTIONS OF THE AREA. HOWEVER...IF THE BETTER MOISTURE TRANSPORT SHOULD SHIFT A BIT MORE NORTH THIS EVENING...SO WILL THE HEAVY RAIN THREAT. WILL CONTINUE THE HYDROLOGICAL OUTLOOK FOR NOW. && .ARX WATCHES/WARNINGS/ADVISORIES... WI...NONE. MN...NONE. IA...NONE. && RIECK
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LA CROSSE WI 1158 AM CDT FRI JUN 19 2009 IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-032>034- 041>044-053>055-061-201100- 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- 1158 AM CDT FRI JUN 19 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PARTS OF SOUTHEAST MINNESOTA... NORTHEAST IOWA...AND SOUTHWEST INTO CENTRAL WISCONSIN. .DAY ONE...THIS AFTERNOON AND TONIGHT THUNDERSTORMS ARE EXPECTED AGAIN THIS AFTERNOON INTO THE EVENING. WITH A MOIST...UNSTABLE AIRMASS IN PLACE AND FAVORABLE WINDS ALOFT... A FEW OF THESE COULD BECOME SEVERE. THE MAIN THREATS WOULD BE LARGE HAIL...DAMAGING WINDS AND HEAVY RAINS. THE MAIN THREAT AREA FOR THE SEVERE WEATHER LOOKS TO BE EAST OF A LINE FROM NECEDAH WISCONSIN TO NEW HAMPTON IOWA. SHOULD MORE HEAVY RAINS OCCUR... FLOODING WOULD BE A PROBLEM...ESPECIALLY OVER FAR NORTHEAST IOWA AND FAR SOUTHWEST WISCONSIN WHERE HEAVY RAINS FELL THURSDAY NIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THUNDERSTORMS WILL BE POSSIBLE AGAIN SUNDAY...MONDAY...WEDNESDAY AND THURSDAY. THERE MAY BE A RISK OF SEVERE STORMS SUNDAY AFTERNOON AND EVENING...BUT THE DETAILS REMAIN UNCLEAR. IT IS TOO EARLY TO DETERMINE IF THERE IS A SEVERE THREAT WITH ANY OF THE STORMS FROM MONDAY THROUGH THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTERS ACTIVATION MAY BE NEEDED THIS AFTERNOON AND EVENING. THE MAIN THREAT TIME LOOKS TO BE 2 PM TO 8 PM. ANY REPORTS OF HEAVY RAINFALL OR FLOODING WOULD ALSO BE APPRECIATED. .EMERGENCY MANAGEMENT COORDINATION... NO CALL IS SCHEDULED. 04
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 1038 AM CDT FRI JUN 19 2009 WIZ017-029-033-034-191730- CLARK-JACKSON-TAYLOR-TREMPEALEAU- 1038 AM CDT FRI JUN 19 2009 ...STRONG THUNDERSTORMS AFFECTING CLARK...JACKSON...TAYLOR AND TREMPEALEAU COUNTIES... AT 1035 AM...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS OVER I 94 BETWEEN BLACK RIVER FALLS AND OSSEO...MOVING NORTHEAST AT 35 MPH. SMALL HAIL AND FREQUENT DANGEROUS LIGHTNING MAY ACCOMPANY THESE STRONG THUNDERSTORMS. LIGHTNING CAN BE A KILLER AND MAY STRIKE MILES AWAY FROM THE STORM. MOVE INDOORS OR FIND A VEHICLE TO SHELTER IN. THOMPSON
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
1241 PM CDT FRI JUN 19 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0712 AM HAIL 1 ENE WESTBORO 45.35N 90.28W
06/19/2009 E0.50 INCH TAYLOR WI PUBLIC
1100 PM HAIL 4 SSE BLUE RIVER 43.13N 90.54W
06/18/2009 E1.25 INCH GRANT WI PUBLIC
HAIL ASSOCIATED WITH FIRST STORM TO MOVE THROUGH THE
AREA. AROUND 4.5 INCHES OF RAIN.
1030 PM HEAVY RAIN 1 SW HARPERS FERRY 43.19N 91.17W
06/18/2009 M4.50 INCH ALLAMAKEE IA PUBLIC
0956 PM TSTM WND DMG 1 SW HARPERS FERRY 43.19N 91.17W
06/18/2009 ALLAMAKEE IA PUBLIC
4 INCH TREE BRANCH BROKEN...ALSO RAIN TOTALED JUST UNDER
3 INCHES.
0946 PM HAIL 2 S WATERVILLE 43.18N 91.29W
06/18/2009 E0.75 INCH ALLAMAKEE IA PUBLIC
&&
BROOKSPRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LA CROSSE WI
1246 PM CDT FRI JUN 19 2009
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0855 AM TSTM WND GST DICKEYVILLE 42.63N 90.59W
06/19/2009 M58.00 MPH GRANT WI EMERGENCY MNGR
0846 AM TSTM WND GST DICKEYVILLE 42.63N 90.59W
06/19/2009 E60.00 MPH GRANT WI EMERGENCY MNGR
WIND GUSTS OF 50 TO 60 MPH FROM POTOSI TO DICKEYVILLE
0712 AM HAIL 1 ENE WESTBORO 45.35N 90.28W
06/19/2009 E0.50 INCH TAYLOR WI PUBLIC
0345 AM FLASH FLOOD 6 NE FENNIMORE 43.04N 90.57W
06/19/2009 GRANT WI LAW ENFORCEMENT
WATER OVER COLLINS ROAD AND COUNTY Q NEAR CASTLE ROCK
0330 AM FLASH FLOOD 5 NW FENNIMORE 43.03N 90.72W
06/19/2009 GRANT WI LAW ENFORCEMENT
STAR LANE JUST OUTSIDE OF WERLEY WAS CRUMBLING DUE TO
HIGH WATER.
0330 AM FLASH FLOOD 5 NW FENNIMORE 43.03N 90.72W
06/19/2009 GRANT WI LAW ENFORCEMENT
A FEW HOMES WERE EVACUATED IN THE COMMUNITY OF WERLEY AS
BIG GREEN RIVER WAS OUT OF ITS BANK.
0300 AM FLASH FLOOD WERLEY 43.01N 90.77W
06/19/2009 GRANT WI LAW ENFORCEMENT
WATER REPORTED AROUND SOME HOUSES IN/NEAR WERLEY. LAW
ENFORECMENT HEADED THERE FOR RESCUES.
0255 AM FLASH FLOOD WERLEY 43.01N 90.77W
06/19/2009 GRANT WI LAW ENFORCEMENT
AS MUCH AS 15 FEET OF WATER REPORTED IN/NEAR TOWN IN THE
BIG GREEN RIVER.
1225 AM FLASH FLOOD BOSCOBEL 43.14N 90.70W
06/19/2009 GRANT WI LAW ENFORCEMENT
MINOR STREET FLOODING REPORTED IN THE CITY
1128 PM HAIL 1 W MUSCODA 43.19N 90.45W
06/18/2009 M0.75 INCH GRANT WI TRAINED SPOTTER
1125 PM HAIL 3 SW BLUE RIVER 43.16N 90.61W
06/18/2009 M1.75 INCH GRANT WI FIRE DEPT/RESCUE
1123 PM HAIL 3 SW BLUE RIVER 43.16N 90.61W
06/18/2009 M1.25 INCH GRANT WI FIRE DEPT/RESCUE
1120 PM HAIL BLUE RIVER 43.19N 90.57W
06/18/2009 M0.75 INCH GRANT WI FIRE DEPT/RESCUE
1115 PM HAIL BLUE RIVER 43.19N 90.57W
06/18/2009 E0.88 INCH GRANT WI PUBLIC
1100 PM HAIL 4 SSE BLUE RIVER 43.13N 90.54W
06/18/2009 E1.25 INCH GRANT WI PUBLIC
HAIL ASSOCIATED WITH FIRST STORM TO MOVE THROUGH THE
AREA. AROUND 4.5 INCHES OF RAIN.
1030 PM HEAVY RAIN 1 SW HARPERS FERRY 43.19N 91.17W
06/18/2009 M4.50 INCH ALLAMAKEE IA PUBLIC
1020 PM HEAVY RAIN TUNNEL CITY 44.00N 90.57W
06/18/2009 M1.38 INCH MONROE WI TRAINED SPOTTER
THIS FELL IN 20 MINUTES
0956 PM TSTM WND DMG 1 SW HARPERS FERRY 43.19N 91.17W
06/18/2009 ALLAMAKEE IA PUBLIC
4 INCH TREE BRANCH BROKEN...ALSO RAIN TOTALED JUST UNDER
3 INCHES.
0946 PM HAIL 2 S WATERVILLE 43.18N 91.29W
06/18/2009 E0.75 INCH ALLAMAKEE IA PUBLIC
0900 PM HAIL CALMAR 43.18N 91.87W
06/18/2009 M1.00 INCH WINNESHIEK IA TRAINED SPOTTER
0900 PM HAIL CALMAR 43.18N 91.87W
06/18/2009 E1.00 INCH WINNESHIEK IA BROADCAST MEDIA
&&
BROOKSThe La Crosse radar (KARX), 117 km away, was scanning. The volume nearest the first event began at 20:00 UTC.
2 thunderstorm wind. Local standard time, as filed.
A large tree was downed along County Highway E.
Two large trees were knocked down near 10th and Edgewood St.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2009Every state in 2009This day in weather historyWarnings in Wisconsin, June 2009
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: 167673, 167674.