Rounds of thunderstorms moving east along a stationary front produced several inches of rainfall and resultant flash flooding.
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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.
Rounds of thunderstorms moving east along a stationary front produced several inches of rainfall and resultant flash flooding.
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 11, 8:16 PM CST, 2 hours 19 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 916 PM CDT THU JUN 11 2015 .UPDATE... REMOVED FAR NORTHERN TIER OF COUNTIES FROM FLOOD WATCH...AFTER COORDINATION WITH GREEN BAY AND LA CROSSE OFFICES. PERIODS OF HEAVY RAINFALL REMAIN POSSIBLE THROUGH TONIGHT...MAINLY ALONG AND SOUTH OF A WISCONSIN DELLS TO PORT WASHINGTON LINE. LINE OF CONVECTION DEVELOPING OVER EAST CENTRAL IOWA SHOULD REMAIN JUST SOUTH OF THE WISCONSIN AND ILLINOIS BORDER THIS EVENING...AS SHOULD ANY FLASH FLOOD/SEVERE WEATHER RISK. THE AREAL FLOOD WATCH FOR THE REMAINDER OF THE AREA IS QUESTIONABLE...AS MESOSCALE MODELS TRY TO BRING ROUNDS OF HIGHER REFLECTIVITY THROUGH THE AREA THROUGH THE NIGHT. IF CURRENT AREA TO THE SOUTHWEST MISSES THE AREA THIS EVENING AS EXPECTED...FIRST ROUND OF CONVECTION FROM THE MESOSCALE MODELS WILL THEN NOT OCCUR OVER THE AREA. AREA WILL REMAIN IN VICINITY OF LOW LEVEL JET NOSE AND CONVERGENCE THIS EVENING...THEN BEGINS TO SHIFT NORTHEAST LATER TONIGHT. HIGH PRECIPITABLE WATER VALUES REMAIN. ELEVATED CAPE INCREASES SOMEWHAT AS THE NIGHT GOES ON...BUT MAY NOT BE REALIZED AS BEST UPWARD VERTICAL MOTION WITH LOW LEVEL JET BEGINS TO MOVE AWAY. ENOUGH UNCERTAINTY TO KEEP THE AREAL FLOOD WATCH GOING FOR NOW...BUT WILL CONTINUE TO MONITOR TRENDS AND PERHAPS ELIMINATE MORE COUNTIES LATER ON TONIGHT IF CONVECTION DOES NOT MATERIALIZE. && .AVIATION/06Z TAFS/... ROUNDS OF SHOWERS AND SOME THUNDERSTORMS ARE EXPECTED TONIGHT...ENDING WEST TO EAST FRIDAY MORNING. PERIODS OF HEAVY RAINFALL ARE POSSIBLE. EXPECT VISIBILITIES AND CEILINGS TO VARY QUITE A BIT BETWEEN VFR/MVFR AND IFR CATEGORY UNTIL AROUND 06Z FRIDAY. CEILINGS SHOULD THEN BECOME MAINLY IFR OR BELOW ALTERNATE MINIMUMS INTO FRIDAY MORNING...BEFORE IMPROVING TO VFR BY LATE IN THE DAY. VISIBILITIES SHOULD DROP INTO THE 2 TO 3 MILE RANGE...THOUGH COULD DIP BELOW ALTERNATE MINIMUMS AT TIMES. WINDS SHOULD REMAIN NORTHEAST LATER TONIGHT AND FRIDAY...GUSTY AT TIMES...BEFORE WEAKENING FRIDAY EVENING. && .MARINE... GUSTY NORTH TO NORTHEAST WINDS TO 22 TO 25 KNOTS HAVE LINGERED THIS EVENING...AND MAY CONTINUE INTO LATER TONIGHT AND FRIDAY. WAVES MAY BUILD INTO THE 3 TO 5 FOOT RANGE. THUS...MAY ISSUE A SMALL CRAFT ADVISORY FOR THE NEARSHORE WATERS THROUGH FRIDAY. DEW POINTS DO NOT SEEM TO BE HIGH ENOUGH FOR A DENSE FOG RISK TONIGHT...AS WELL AS THE STRONG NORTHEAST WINDS HELPING MIX THINGS UP BELOW THE INVERSION. && .BEACHES... MAY NEED A BEACH HAZARDS STATEMENT FOR FRIDAY ACROSS AREA BEACHES...AS GUSTY NORTH TO NORTHEAST WINDS AND HIGH WAVES COMBINE TO LEAD TO A HIGH SWIM RISK. && .PREV DISCUSSION... /ISSUED 342 PM CDT THU JUN 11 2015/ TONIGHT AND FRIDAY...FORECAST CONFIDENCE...HIGH INCREASING MOISTURE AND PERSISTENT WARM ADVECTION AHEAD OF APPROACHING LOW PRESSURE WILL BRING CONTINUED SHOWERS AND OCCASIONAL THUNDERSTORMS TO SOUTHERN WISCONSIN THROUGH TONIGHT. WITH PRECIPITABLE WATER VALUES APPROACHING 2 INCHES...RAINFALL RATES WILL BE HEAVY AT TIMES. OVERALL...EXPECTING WIDESPREAD ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES FROM LATE THIS AFTERNOON INTO THE EARLY FRIDAY MORNING HOURS. THESE AMOUNTS WILL LIKELY CAUSE RIVER AND STREAM RISES AND MAY ALSO CAUSE A SOME URBAN AND STREET FLOODING. WAS NOT SET ON ISSUING A FLOOD WATCH...BUT GIVEN WATCHES TO THE NORTH/SOUTH/WEST OF THE FORECAST AREA...FELT PROMPTED TO ISSUE ONE FOR SOUTHERN WISCONSIN FOR THE SAKE OF COLLABORATION. THE RAIN SHOULD WIND DOWN NORTHWEST TO SOUTHEAST EARLY FRIDAY MORNING AS HIGH PRESSURE BUILDS IN FROM THE NORTHWEST. MAY SEE A FEW SHOWERS LINGER NEAR THE ILLINOIS BORDER IN THE AFTERNOON...BUT OTHERWISE LOOKS DRY. CLOUDS WILL BE SLOW TO EXIT ON FRIDAY...AND TEMPS ALOFT WILL NOT RECOVER QUICKLY...SO SHOULD SEE HIGHS REMAINING BELOW NORMAL. FRIDAY NIGHT AND SATURDAY...FORECAST CONFIDENCE IS HIGH. SHORT WAVE RIDGING WILL CONTINUE TO BUILD ACROSS THE AREA DRYING THINGS OUT FOR THIS PERIOD. AN EAST TO NORTHEAST FLOW WILL BRING COOLER CONDITIONS NEAR LAKE MICHIGAN. DESPITE IT BEING DRY...IT LOOKS LIKE CLOUDS WILL BE HANGING AROUND. THE BEST CHANCE TO SEE THE SUN WILL BE WELL NORTH OF MILWAUKEE AND MADISON. SATURDAY NIGHT THROUGH SUNDAY NIGHT...FORECAST CONFIDENCE IS MEDIUM. A MID LEVEL RIDGE WILL SLIDE EAST...PUTTING US IN A SOUTHWEST FLOW ALOFT...ALLOWING SHORT WAVE ENERGY TO ROLL THROUGH THE AREA. MEANWHILE...IN THE LOWER LEVELS...HIGH PRESSURE WILL RESIDE OVER THE SOUTHEAST U.S. WHICH OPENS UP THE GULF FOR THE MID SECTION OF THE COUNTRY. A SURFACE LOW IS FORECAST TO DEVELOP OVER THE CENTRAL PLAINS WITH A WARM FRONT STRETCHED EAST INTO ILLINOIS SATURDAY NIGHT. WE SHOULD SEE OVERNIGHT CONVECTION DEVELOP SATURDAY NIGHT AS AN INCREASING LOW LEVEL JET IMPINGES ON THE WARM FRONT WITHIN AN IMPRESSIVE WARM/MOIST CONVEYOR BELT. THE ECMWF/GFS/NAM ALL DEVELOP SOME TYPE OF MCS IN THE SE MN/NE IA VCNTY. THE LOW AND WARM FRONT WILL LIFT ACROSS THE AREA ON SUNDAY...PULLING AWAY SUNDAY NIGHT. SO THIS LOOKS LIKE A FAIRLY WET PERIOD. MODEL SOUNDINGS SUGGEST CAPE REACHING ABOUT 1000J/KG BUT SHEAR VALUES A BIT LOW AT 20-30KTS. MONDAY...FORECAST CONFIDENCE IS MEDIUM. A COLD FRONT TRAILING BEHIND THE DEPARTING LOW THAT WILL HAVE MOVED OFF TO THE NORTHEAST WILL LIKELY STILL BE LINGERING OVER SOUTHERN WISCONSIN. SO WILL NEED TO KEEP PRECIP CHANCES GOING THROUGH THE DAY. MONDAY NIGHT THROUGH TUESDAY NIGHT...FORECAST CONFIDENCE IS LOW. THIS MAY END UP BEING A DRY PERIOD...BUT THERE IS SOME CONCERN THAT THE COLD FRONT WILL BECOME STATIONARY OVER/NEAR THE AREA AND MAINTAIN THE THREAT FOR SHOWERS AND STORMS. TOO MUCH UNCERTAINTY TO GO DRY AT THIS POINT. WEDNESDAY AND THURSDAY...FORECAST CONFIDENCE IS MEDIUM. ANOTHER LOW PRESSURE SYSTEM WILL TRACK OUT OF THE PLAINS...SIMILAR TO THE SUNDAY EVENT...BUT A BIT FARTHER SOUTH. COPIOUS MOISTURE WILL CONTINUE TO LINGER JUST SOUTH OF THE AREA...SO PLENTY OF MOISTURE TO TAP INTO. THE LOW SHOULD MOVE ACROSS THE AREA WEDNESDAY INTO WEDNESDAY NIGHT...PULLING AWAY ON THURSDAY WITH DRIER WEATHER MOVING BACK IN ON THURSDAY. THAT/S THE TIMING RIGHT NOW ANYWAY. AVIATION/00Z TAFS/... PERIODS OF SHOWERS AND STORMS ARE EXPECTED THROUGH TONIGHT...WINDING DOWN FRIDAY MORNING. CIGS/VSBYS WILL BOUNCE AROUND AS THE SHOWERS/STORMS COME AND GO INTO THIS EVENING...WITH PERSISTENT LOWER CIGS DEVELOPING TONIGHT INTO FRIDAY AS SURFACE LOW PRESSURE PASSES THROUGH THE AREA. MARINE... WINDS AND WAVES WILL APPROACH SMALL CRAFT ADVISORY LEVELS MAINLY NORTH OF PORT WASHINGTON TONIGHT INTO FRIDAY AS STRONG LOW PRESSURE MOVES THROUGH THE AREA. CONDITIONS LOOK BORDERLINE AT THE MOMENT...SO OPTED TO HOLD OFF ON AN ADVISORY. && .MKX WATCHES/WARNINGS/ADVISORIES... WI...FLOOD WATCH UNTIL 7 AM CDT FRIDAY FOR WIZ056>060-062>072. LM...NONE. && UPDATE...WOOD TONIGHT/FRIDAY AND AVIATION/MARINE...DDV FRIDAY NIGHT THROUGH THURSDAY...DAVIS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 1050 PM CDT THU JUN 11 2015 WIZ046-047-051-052-056>060-062>072-130400- MARQUETTE-GREEN LAKE-FOND DU LAC-SHEBOYGAN-SAUK-COLUMBIA-DODGE- WASHINGTON-OZAUKEE-IOWA-DANE-JEFFERSON-WAUKESHA-MILWAUKEE- LAFAYETTE-GREEN-ROCK-WALWORTH-RACINE-KENOSHA- 1050 PM CDT THU JUN 11 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL WISCONSIN...SOUTH CENTRAL WISCONSIN AND SOUTHEAST WISCONSIN. .DAY ONE...TONIGHT A FLOOD WATCH IS IN EFFECT THROUGH 7 AM FRIDAY MORNING...MAINLY ALONG AND SOUTH OF A WISCONSIN DELLS TO PORT WASHINGTON LINE...DUE TO PERIODS OF HEAVY RAIN AS LOW PRESSURE TRACKS ACROSS NORTHERN ILLINOIS. THE BEST CHANCES FOR HEAVY RAINFALL WILL BE NEAR THE WISCONSIN AND ILLINOIS BORDER. THERE IS A MARGINAL RISK FOR SEVERE THUNDERSTORMS THIS EVENING...MAINLY ALONG AND SOUTH OF A DARLINGTON TO RACINE LINE. ANY SEVERE WEATHER SHOULD REMAIN TO THE SOUTH...CLOSER TO THE LOW PRESSURE SYSTEM AND FRONTAL BOUNDARY. GUSTY WINDS AND SMALL HAIL ARE POSSIBLE. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH THURSDAY ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS IS LOOKING LIKELY LATER SATURDAY NIGHT THROUGH SUNDAY...AS A WARM FRONT MOVES NORTHWARD INTO THE REGION. THE CHANCES FOR THUNDERSTORMS WILL LINGER INTO WEDNESDAY...AS A FRONTAL BOUNDARY REMAINS IN THE VICINITY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION SHOULD NOT BE NEEDED. HOWEVER...RAINFALL REPORTS WILL BE APPRECIATED TONIGHT INTO FRIDAY MORNING. LMZ643>646-130400- 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- 1050 PM CDT THU JUN 11 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE MICHIGAN. .DAY ONE...TONIGHT SEVERAL PERIODS OF SHOWERS AND THUNDERSTORMS ARE EXPECTED TONIGHT...AS LOW PRESSURE STRENGTHENS OVER THE CENTRAL PLAINS AND MOVES NORTHEAST INTO SOUTHERN WISCONSIN. THERE IS A MARGINAL RISK FOR SEVERE THUNDERSTORMS THIS EVENING...MAINLY SOUTH OF WIND POINT. GUSTY WINDS AND SMALL HAIL ARE POSSIBLE. A SMALL CRAFT ADVISORY IS IN EFFECT...FOR GUSTY NORTH TO NORTHEAST WINDS GENERATING HIGH WAVES. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH THURSDAY THE SMALL CRAFT ADVISORY REMAINS IN EFFECT INTO FRIDAY EVENING...FOR GUSTY NORTHEAST WINDS AND HIGH WAVES. A HIGH SWIM RISK IS LIKELY FRIDAY FOR MOST BEACHES ALONG THE LAKE MICHIGAN SHORELINE. STAY OUT OF THE WATER. ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS IS LOOKING LIKELY ON SUNDAY...AS A WARM FRONT MOVES NORTHWARD INTO THE REGION. THE CHANCES FOR THUNDERSTORMS WILL LINGER INTO WEDNESDAY...AS A FRONTAL BOUNDARY REMAINS IN THE VICINITY. WOOD WWW.WEATHER.GOV/MKX
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
1131 PM CDT THU JUN 11 2015
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1126 PM HEAVY RAIN BLACK EARTH 43.14N 89.75W
06/11/2015 M1.01 INCH DANE WI TRAINED SPOTTER
STORM TOTAL RAINFALL SO FAR.
&&
SCHULTZThe Milwaukee radar (KMKX), 120 km away, was scanning. The volume nearest the first event began at 04:35 UTC.
2 flash flood. Local standard time, as filed.
A few roads closed to due water flowing over them. A car got stuck in deep water when attempting to cross a low water crossing.
Four roads washed out south of Browntown, including portions of Fox Valley Road and Clark Road. Three of the roads were gravel and one was paved. Rainfall estimates of 4-5 inches.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2015Every state in 2015This day in weather historyWarnings in Wisconsin, June 2015
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: 572400, 572387.