Strong south winds, gusting to around 39 knots (45 mph), raked parts of south-central and southeast Wisconsin on June 7th. These strong winds occurred ahead of a cold front that trailed behind a deep low pressure that moved northeast through the state of Minnesota.
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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 MKX wrote it up.
Strong south winds, gusting to around 39 knots (45 mph), raked parts of south-central and southeast Wisconsin on June 7th. These strong winds occurred ahead of a cold front that trailed behind a deep low pressure that moved northeast through the state of Minnesota. There were scattered reports of downed power-lines as the wind broke trees braches that then fell on the lines. At the top of the 15-story AOS Building on the UW-Madison campus, a 41 knot (47 mph) wind gust was measured at 0916CST.
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 Milwaukee, WI wrote its last area forecast discussion before the first event at Jun 7, 3:48 AM CST, 5 hours 12 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 448 AM CDT THU JUN 7 2007 .SHORT TERM... SFC WARM FRONT EXTENDING SEWD FROM 980 LOW OVER THE DAKOTAS IS CURRENTLY MOVING NORTH THROUGH THE CWA WITH TEMPS WARMING INTO THE LOWER 70S. LINE OF CONVECTION ASSOCIATED WITH THE COLD FRONT OVER ERN NE INTO WRN MN IS CURRENTLY WEAKENING. THUS EXPECT PLENTY OF SUNSHINE AT LEAST INTO THE EARLY AFTERNOON TO SUPPORT UPPER 80S TO LOWER 90S TEMPS AND GOOD MIXING. THE STRONG PRESSURE GRADIENT AND GOOD MIXING WILL ALLOW 925 MB WINDS PROGGED TO 40 KTS TO MIX DOWN LATER THIS MORNING AND THROUGH THE AFTERNOON SO A WIND ADVISORY HAS BEEN ISSUED UNTIL 00Z FRI. THE 100 KT JET STREAK CURRENTLY OVER CO WILL LIFT NEWD TODAY...REACHING WI LATE IN THE AFTERNOON AND EVENING WHILE THE SFC LOW MOVES INTO SW ONTARIO. THE FIRST COLD FRONT OVER NE AND KS WILL MOSTLY WASH OUT AS IT ALIGNS WITH THE UPPER FLOW AND SHOULD ARRIVE OVER WRN WI BY 00Z. THE MAIN COLD FRONT WILL ARRIVE AFTER 06Z BUT THE OPPORTUNITY FOR SEVERE CONVECTION IS EXPECTED WELL OUT AHEAD OF THIS FRONT. THE 12C 700 MB CAP IS PROGGED TO SHIFT EWD DURING THE AFTERNOON AS THE MAIN POLAR TROUGH LIFTS NEWD THROUGH MN. 700 MB TEMPS WILL COOL TO 6C IN WRN WI BY 00Z AND 4-6C OVER ALL OF SRN WI DURING THE EVENING. THIS EFFECTIVELY ELIMINATES NEARLY ALL CONVECTIVE INHIBITION WHILE MODIFIED FCST SOUNDINGS SHOW AROUND 2000 J/KG OF MLCAPE AT 00Z. EXTREME WIND SHEAR IS IN PLACE WITH 0-3 KM SHEAR OF 50 KTS...0-6 KM SHEAR OF 55-65 KTS...AND 0-1 KM SHEAR OF 20-30 KTS. THESE PARAMETERS EASILY FAVOR SUPERCELLS AND/OR BOW ECHOES GIVEN INITIATION. THE STRONG TORNADO THREAT WILL BE HAMPERED BY HIGH MLCLS AROUND 1.3-1.6 KM AND DCAPES AROUND 1200 J/KG. JUST HOW WIDESPREAD THE CONVECTION WILL BE IS DIFFICULT SINCE LOW LEVEL CONVERGENCE ALONG THE INITIAL COLD FRONT IS VERY WEAK. THIS IS OFFSET BY THE REMOVAL OF CIN. MESOSCALE MODELS ARE SHOWING A MORE SCT NATURE TO THE STORMS AND WITHOUT A STRONGER FOCUS IN LOW LEVELS A LARGE BOW ECHO/SQUALL LINE WILL PROBABLY NOT OCCUR. INSTEAD SMALLER LINE SEGMENTS/BOW ECHOES AND SCT SUPERCELLS WOULD BE POSSIBLE. BY LATER IN THE EVENING A SHORTWAVE TROUGH WITHIN THE LARGER SCALE FLOW IS PROGGED TO SHIFT EWD ACROSS WI. THIS MAY THEN BE THE LIFT NEEDED FOR MORE WIDESPREAD CONVECTION...POSSIBLY JUST IN ERN WI. GIVEN THE AFOREMENTIONED SHEAR...0-3 KM LAPSE RATES AROUND 7C/KM...AND MOMENTUM TRANSFER OF VERY STRONG WINDS ALOFT...DAMAGING WIND GUSTS WITH SOME TO HURRICANE STRENGTH IS THE MAIN CONCERN WITH ANY INDIVIDUAL SUPERCELLS AND/OR BOW ECHOES. CERTAINLY CANNOT RULE OUT ISOLD TORNADOES AND LARGE HAIL THOUGH GIVEN THE PRESENCE OF SUPERCELLS. A ZONAL FLOW WILL DEVELOP FOR THE WEEKEND WITH HIGH PRESSURE SHIFTING INTO THE CENTRAL PLAINS ON FRI AND MOVING SLOWLY EWD TO THE OHIO VALLEY/MID ATLANTIC STATES BY SUNDAY. PLEASANT SUMMER WEATHER IS EXPECTED. && .AVIATION...XPCT BKN040-060 WITH OCNL -SHRA AND ISOLD -TS. CLDS CVR AND CNVCTN ENDING IN WRN WI BY ARND 00Z...MSN BY ARND 02Z AND MKE BY ARND 05Z. XPCT LLWS WITH WINDS 2K FT ARND 50KT AFT 05Z CONDS CONTG THRU 18Z THUR. WDSPRD CNVCTN REDVLPS AFT 18Z THRU IN WRN WI AND ARND 00Z IN THE EAST. && .MKX WATCHES/WARNINGS/ADVISORIES... WIND ADVISORY FROM 10 AM THIS MORNING TO 7 PM CDT THIS EVENING FOR WIZ046-047-051-052-056>060-062>072. && 20/20/05
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 914 AM CDT THU JUN 7 2007 WIZ046-047-051-052-056>060-062>072-080930- MARQUETTE-GREEN LAKE-FOND DU LAC-SHEBOYGAN-SAUK-COLUMBIA-DODGE- WASHINGTON-OZAUKEE-IOWA-DANE-JEFFERSON-WAUKESHA-MILWAUKEE- LAFAYETTE-GREEN-ROCK-WALWORTH-RACINE-KENOSHA- 914 AM CDT THU JUN 7 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL WISCONSIN...SOUTH CENTRAL WISCONSIN AND SOUTHEAST WISCONSIN. .DAY ONE...TODAY AND TONIGHT THERE IS A HIGH RISK OF SEVERE THUNDERSTORMS TODAY INTO THIS EVENING OVER ALL OF SOUTH CENTRAL AND MOST OF SOUTHEAST WISCONSIN...ALONG AND WEST OF A LINE STRETCHING FROM ELKHART LAKE...DELAFIELD TO DELAVAN. THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS OVER THE REMAINDER OF SOUTHEAST WISCONSIN. THUNDERSTORMS ARE EXPECTED TO DEVELOP BETWEEN 3 PM AND 5 PM THIS AFTERNOON. ALTHOUGH THE EASTWARD PROGRESS OF THE EXPECTED STORMS WILL BE RELATIVELY SLOW...THE INDIVIDUAL STORMS WILL BE MOVING RAPIDLY NORTHEAST AT AROUND 50 TO 60 MPH. DAMAGING WIND AND LARGE HAIL ARE THE MAIN THREATS WITH THESE STORMS...HOWEVER...ISOLATED TORNADOES ARE ALSO POSSIBLE. REVIEW PREPAREDNESS ACTIONS BEFORE THE STORMS DEVELOP. AREA CAMPERS SHOULD PAY PARTICULAR ATTENTION TO THE POTENTIAL FOR SEVERE WEATHER. TRY TO SEEK STRUCTURAL SHELTER IF SEVERE STORMS APPROACH YOUR LOCATION...ESPECIALLY IF YOU ARE IN A TENT. A WIND ADVISORY WILL ALSO BE IN EFFECT FROM 10 AM THIS MORNING THROUGH 7 PM THIS EVENING. SOUTHERLY WINDS WILL INCREASE THIS MORNING TO 20 TO 30 MPH WITH GUSTS REACHING 48 MPH AT TIMES. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THERE IS A CHANCE OF THUNDERSTORMS MONDAY THROUGH TUESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL LIKELY BE NEED THIS AFTERNOON THROUGH THIS EVENING. LMZ643>646-665-080930- SHEBOYGAN TO PORT WASHINGTON- PORT WASHINGTON TO NORTH POINT LIGHTHOUSE- NORTH POINT LIGHTHOUSE TO WIND POINT- WIND POINT TO WINTHROP HARBOR ILLINOIS- WISCONSIN ADJACENT OPEN WATERS OF LAKE MICHIGAN TO MID LAKE- 424 AM CDT THU JUN 7 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS ARE LIKELY BY THIS EVENING. A FEW STORMS MAY BE SEVERE WITH DAMAGING WINDS AND LARGE HAIL. SEEK A DETAILED WEATHER BRIEFING BEFORE HEADING OUT ONTO THE LAKE TODAY AND TONIGHT...AND REMAIN ALERT FOR RAPIDLY CHANGING CONDITIONS. ONCE THE STORMS DEVELOP...THEY WILL BE MOVING NORTHEAST AT 45 TO 55 KNOTS AND WILL QUICKLY CATCH AN UNAWARE BOATER BY SURPRISE. A SMALL CRAFT ADVISORY IS IN EFFECT THROUGH TONIGHT FOR STRONG SOUTH WINDS AND 3 TO 6 FOOT WAVES. THERE IS AN INCREASED RISK OF RIP CURRENTS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THERE IS A CHANCE OF THUNDERSTORMS MONDAY THROUGH WEDNESDAY. UPDATED FOR EXPANDED HIGH RISK AREA. DAVIS/REM WWW.WEATHER.GOV/MKX
The national radar mosaic for the moment the first event began.
6 strong wind. Local standard time, as filed.
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, June 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: 43874, 43875, 43877, 43878, 43879, 43880.