Strong northwest winds gusting to 45 knots (52 mph) raked the southeast Wisconsin counties near Lake Michigan mostly during the morning hours, as a deep low pressure moved east from Lake Huron. There were numerous reports of broken small tree branches, and overturned garbage cans and patio furniture.
Every event with a place to put it; 8 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 MKX wrote it up.
Strong northwest winds gusting to 45 knots (52 mph) raked the southeast Wisconsin counties near Lake Michigan mostly during the morning hours, as a deep low pressure moved east from Lake Huron. There were numerous reports of broken small tree branches, and overturned garbage cans and patio furniture. Scattered power outages occurred as broken branches impacted power lines. Measured maximum wind gusts include 45 knots (52 mph) just south of Waukesha (Waukesha Co.), 44 knots (51 mph) near Fond du Lac (Fond du Lac Co.), 42 knots (48 mph) at the Racine Airport (Racine Co.), 41 knots (47 mph) at the Kenosha Airport (Kenosha Co.). Other locations had gusts to 39 knots (45 mph).
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 Apr 3, 2:00 PM CST, 13 hours earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 300 PM CDT TUE APR 3 2007 .DISCUSSION...FORECAST FOCUS ON POTENTIAL FOR BORDER LINE WIND ADVISORY CONDITIONS LATE TONIGHT AND WEDNESDAY...AND DURATION OF COLD PERIOD OF WEATHER FOR CWA. .SHORT TERM...EVALUATION OF NGM/NAM/GFS/RUC PROGS AND BUFKIT SOUNDINGS REVEALS CWA WILL BE VERY CLOSE TO WIND ADVISORY CRITERIA LATE TONIGHT AND WEDNESDAY. MSAS SHOWS LARGE BAND OF STRONG WINDS ALREADY TAKING PLACE OVER MINNESOTA AND IOWA. PROGS DEEPEN LOW AS IT PUSHES ACROSS EASTERN GREAT LAKES OVERNIGHT AND WEDNESDAY AND AS COLD AIR ADVECTION TAKES PLACE OVER CWA. WHILE IMPRESSIVE SURFACE GRADIENT IS FORECAST FOR CWA...PROGS ALSO INDICATE A FAIR AMOUNT OF CROSS ISOBAR FLOW. 925 MILLIBAR PROGS DEVELOP 40-45 KNOT WINDS. HOWEVER LOW LEVEL MOISTURE PROGS INDICATE THAT CLOUDS WILL BE EXTENSIVE THROUGH WEDNESDAY WHICH WILL PREVENT THOROUGH MIXING OF LOW LEVEL FEATURES THUS LIMITING DOWNWARD DESCENT OF STRONGER WINDS. SO HAVE DECIDED TO BEEF UP WINDS TO JUST BELOW ADVISORY CRITERIA. HAVE ALSO TRIMMED BACK ON PRECIPITATION TO VERY LIGHT CATEGORY THROUGH WEDNESDAY AS CURRENT WATER VAPOR AND PROGGED CRAS SATELLITE LOOPS AGREE WITH TREND OF DECENT DRYING MOVING ACROSS CWA. .LONG TERM...NAM/GFS/ECMWF/DGEX PROGS CONTINUE TO DEPICT EXTENDED COLD DRY NORTH TO NORTHWEST FLOW THROUGH THE WEEKEND WITH FIRST HINT OF WARMER AIR TO RETURN MONDAY. && .AVIATION...WDSPRD MVFR CIGS THRU 06Z WED WITH AREAS IFR CIGS TIL ARND 01Z. XPCT VFR CONDS TO DVLP BTWN 06-09Z WED AND CONT THRU 00Z THUR. LGT NW SFC FLOW AFT 22Z BCMG VRY STG W-NW WNDS 20-30KTS BY 06Z WITH HIGHER GUSTS. VRY STG WNDS WL CONT THRU 00Z THUR. && .MKX WATCHES/WARNINGS/ADVISORIES... NONE. && ZAJDEL/35
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 700 PM CDT TUE APR 3 2007 WIZ046-047-051-052-056>060-062>072-041100- MARQUETTE-GREEN LAKE-FOND DU LAC-SHEBOYGAN-SAUK-COLUMBIA-DODGE- WASHINGTON-OZAUKEE-IOWA-DANE-JEFFERSON-WAUKESHA-MILWAUKEE- LAFAYETTE-GREEN-ROCK-WALWORTH-RACINE-KENOSHA- 700 PM CDT TUE APR 3 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL WISCONSIN...SOUTH CENTRAL WISCONSIN AND SOUTHEAST WISCONSIN. .DAY ONE...TONIGHT SOME RIVERS ARE ABOVE FLOOD STAGE. INCREASING WEST WINDS TONIGHT WILL GUST TO 40 MPH. PERSONS SHOULD STORE OR SECURE LOOSE OUTDOOR ITEMS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THE GUSTY WINDS TO9 40 MPH WILL CONTINUE WEDNESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT. LMZ643>646-665-041100- 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- 700 PM CDT TUE APR 3 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE MICHIGAN. .DAY ONE...TONIGHT GALE WARNINGS ARE IN EFFECT AT 10 PM FOR ALL OF LAKE MICHIGAN TONIGHT. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY A GALE WARNING IS IN EFFECT FOR ALL OF LAKE MICHIGAN THROUGH WEDNESDAY AFTERNOON. SMALL CRAFT ADVISORY CONDITIONS ARE EXPECTED FOR WEDNESDAY NIGHT THROUGH THURSDAY NIGHT. HENTZ WWW.WEATHER.GOV/MKX
The national radar mosaic for the moment the first event began.
8 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, April 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: 29368, 29369, 29370, 29371, 29372, 29373, 29374, 29376.