Funnel clouds and rotating wall clouds were reported in Fond Du Lac County on July 11th and in Green County on July 12th.
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The episode as NWS MKX wrote it up.
Funnel clouds and rotating wall clouds were reported in Fond Du Lac County on July 11th and in Green County on July 12th.
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 Jul 11, 2:15 PM CST, 1 hour 5 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 315 PM CDT SUN JUL 11 2010 .SHORT TERM... SHORT WAVE TROUGH OVER ERN IA/SERN MN WL CONTINUE EWD ACRS WI/IL BORDER AREA REST OF THIS AFT AND EARLY EVE WHICH WILL RESULT IN SCT TO NUMEROUS SHWRS AND TSTMS...WITH DIMINISHING TREND FROM THE WEST DURING THE EVE AS SHORT WAVE SLIDES EWD. SHORT TERM GUIDANCE FINALLY IN GOOD AGREEMENT ON THIS SOLUTION. DEBRIS CLOUD FROM MRNG CONVECTION HAS TEMPERED INSTABILITY SOMEWHAT...HOWEVER SB CAPES HAVE BEEN ABLE TO REACH 1500 J/KG AHEAD OF THIS WAVE DESPITE CLOUD COVER. 0 TO 6KM SHEAR REMAINS ON THE WEAK SIDE INTO THIS EVENING...LESS THAN 30KTS. HOWEVER CAN NOT RULE OUT SEVERAL THUNDERSTORMS TAKING ON SOME ROTATION CONSIDERING COMPACT WAVE MOVING THROUGH AND AMOUNT OF INSTABILITY. SFC TO 3KM CAPE ALSO IMPRESSIVE AT 100 TO 150 J/KG BUT SO FAR UPDRAFTS HAVE BEEN WEAK. AFTN GUSTINESS WL HELP INCREASE CONVERGENCE ALONG OUTFLOW BOUNDARIES. SCT THUNDER EXPCD TO FORM ALONG COOL FRONT/DENSITY DISCONTINUITY IN SRN MN INTO NW WI EXPECTED TO WEAKEN AS IT PROGRESSES SWD INTO CENTRAL/SRN WI AS IT BUMPS UP AGAIN SUBSIDENCE BEHIND DEPARTING SHORT WAVE AND LACK OF FORCING TO KEEP T GOING TO THE SOUTHEAST. LINGERING WEAK INSTABILITY AND SECONDARY SHORT WAVE MAY TRIGGER A FEW SHOWERS AND ISOLATED T ON MONDAY...HOWEVER THREAT LOOKS WEAKER THAN EARLY THOUGHT. SHORT TERM GUIDANCE FINALLY REACHED AGREEMENT ON KEEPING PASSING CIRCULATION WEAKER IN THE LOW LEVELS AND FARTHER SOUTH. NEED TO WATCH FOG THREAT ALONG SBM LAKESHORE LATE TONIGHT AS WINDS TURN NORTHEAST. LINGERING DEWPTS IN THE 60S WL FLOW OVER SST IN THE MID TO UPPER 50S NORTH OF PORT WASHINGTON. CLOUDS SHOULD GRADUALLY THIN ON MONDAY AS DRIER AIR MIXES IN FROM THE NORTH. A QUIET AND LESS HUMID PERIOD FOR TUESDAY. APPROACHING CDFNT ON WEDNESDAY SLIGHTLY FASTER THAN EARLIER GUIDANCE. IF TREND CONTINUES...MAY NEED TO ADD SMALL POPS INTO THE NORTHWEST LATE WED AFTN. .LONG TERM... VIGOROUS SHORT WAVE TROUGH MOVES ACROSS SRN CAN WED NGT...AND THEN RAPIDLY NORTHWARD TO HUDSON BAY AREA BY FRIDAY. ASSOCIATED CDFNT WL SWING ACROSS SRN WI WED NGT INTO EARLY THU WITH IMPRESSIVE LOW LEVEL CONVERGENCE AND MOISTURE ADVECTION. PWAT VALUES INCR RAPIDLY TO AROUND 2 INCHES. PATTERN REMAINS PROGRESSIVE AND DEEPER MOISTURE QUICKLY SHUNTED E ON THU. HENCE LOWERED POPS MOST AREAS ON THU. BRIEF LULL ON FRIDAY BEFORE THREAT OF CONVECTION RETURNS DURING THE FIRST HALF OF THE WEEKEND. BOTH GFS AND ECMWF HAVE SHIFTED TO MORE PROGRESSIVE WNW FLOW ACROSS NORTH CENTRAL CONUS FOR THE END OF THE EXTENDED PERIOD AS UPSTREAM TROF AMPLIFYS OVER PAC NW. ANOTHER IN A SERIES OF WK CDFNTS AND SHORT WAVES CAUGHT IN THE NW FLOW PUSHES THRU FRI NGT INTO SAT. WL ADD ONLY SCHC POPS FOR NOW AS MREF POPS LESS THAN 20 PERCENT AND LACK OF RUN TO RUN CONTINUITY IN EXTENDED GUIDANCE. GFS 5 DAY 5H MEANS SHOW LONG WAVE TROFFING PERSISTING THROUGH EARLY THE FOLLOWING WEEK UPSTREAM OVER THE PAC NW...WITH DOWNSTREAM RIDGING AMPLIFYING INTO THE UPPER MIDWEST. THIS WOULD BRING A PERIOD OF HOTTER WX TO SRN WI LATER IN THE WEEK WITH LESS THREAT FROM DAYTIME CONVECTION. && .AVIATION... STRONG SHORTWAVE MOVING THROUGH THIS AFTERNOON AND EVENING. CONVECTION ASSOCIATED WITH THIS EXPECTED TO TAPER GRADUALLY AS THE NIGHT MOVES ALONG. LEANED TOWARDS A BLEND OF MAV/MET WITH RESPECT TO CEILINGS/VSBYS. 500 TROUGH WITH EMBEDDED VORT MAXIMA AND SURFACE TROUGH LINGER INTO MONDAY...BUT WILL HOLD OFF ON PROBS. && .FORECAST CONFIDENCE... TONIGHT...MEDIUM MONDAY...LOW MONDAY NIGHT INTO WEDNESDAY...LOW TO MEDIUM WEDNESDAY NIGHT INTO FRIDAY...MEDIUM FRIDAY NIGHT INTO SUNDAY...LOW && .MKX WATCHES/WARNINGS/ADVISORIES... WI...NONE. LM...NONE. && SHORT/LONG TERM...MBK AVIATION/MARINE...PC
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 338 AM CDT SUN JUL 11 2010 WIZ046-047-051-052-056>060-062>072-120845- MARQUETTE-GREEN LAKE-FOND DU LAC-SHEBOYGAN-SAUK-COLUMBIA-DODGE- WASHINGTON-OZAUKEE-IOWA-DANE-JEFFERSON-WAUKESHA-MILWAUKEE- LAFAYETTE-GREEN-ROCK-WALWORTH-RACINE-KENOSHA- 338 AM CDT SUN JUL 11 2010 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 CHANCE OF THUNDERSTORMS THIS AFTERNOON OVER SOUTH CENTRAL WISCONSIN THEN THUNDERSTORMS WILL BE LIKELY THIS EVENING AND TONIGHT ACROSS ALL OF SOUTH CENTRAL AND SOUTHEAST WISCONSIN. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ROUGHLY WEST OF A FOND DU LAC...BEAVER DAM TO BRODHEAD LINE LATE THIS AFTERNOON AND INTO TONIGHT. LARGE HAIL AND DAMAGING WINDS MAY ACCOMPANY THE STRONGEST THUNDERSTORMS. THE STORMS WILL FORM AHEAD OF AN APPROACHING COLD FRONT AND SURFACE LOW. SOME HEAVY RAIN IS ALSO POSSIBLE TONIGHT...CAUSING A MAINLY URBAN AND SMALL STREAM FLOODING POTENTIAL. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THE CHANCE OF THUNDERSTORMS LINGERS INTO MONDAY...THEN RETURNS WEDNESDAY NIGHT AND THURSDAY AS A WEAK COLD FRONT APPROACHES. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED LATE THIS AFTERNOON AND EARLY TONIGHT. LMZ643>646-120845- SHEBOYGAN TO PORT WASHINGTON WI- PORT WASHINGTON TO NORTH POINT LIGHT WI- NORTH POINT LIGHT TO WIND POINT WI- WIND POINT WI TO WINTHROP HARBOR IL- 338 AM CDT SUN JUL 11 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS WILL BECOME LIKELY TONIGHT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY WINDS AND WAVES MAY APPROACH SMALL CRAFT CRITERIA MONDAY AND MONDAY NIGHT AS LOW PRESSURE EXITS THE WESTERN GREAT LAKES...BRINGING INCREASING NORTH WINDS. THERE IS A CHANCE OF THUNDERSTORMS MONDAY MORNING AND AGAIN WEDNESDAY NIGHT AND THURSDAY. HENTZ WWW.WEATHER.GOV/MKX
The Milwaukee radar (KMKX), 88 km away, was scanning. The volume nearest the first event began at 21:18 UTC.
2 funnel cloud. Local standard time, as filed.
A trained spotter reported a funnel cloud descending from a rotating wall cloud 3 miles south of Rosendale.
A trained spotter reported a rotating funnel cloud 7 miles southwest of Brodhead.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2010Every state in 2010This day in weather historyWarnings in Wisconsin, July 2010
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: 249797, 249808.