A fallen tree caused damage to a camper in Van Riper State Park after it was struck by lightning.
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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 MQT wrote it up.
A fallen tree caused damage to a camper in Van Riper State Park after it was struck by lightning.
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 Marquette, MI wrote its last area forecast discussion before the first event at Sep 6, 3:49 PM EST, 2 hours 11 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MARQUETTE MI 449 PM EDT SUN SEP 6 2015 .SHORT TERM...(THIS EVENING THROUGH MONDAY) ISSUED AT 327 PM EDT SUN SEP 6 2015 A SHORTWAVE THAT MOVED THROUGH LAST NIGHT INTO THIS MORNING PRODUCED HEAVY RAIN OVER WRN LAKE SUPERIOR AND MN...AND EVEN BROUGHT SHOWERS AND THUNDERSTORMS TO FAR WRN UPPER MI AND ERN LAKE SUPERIOR. OVER MOST LAND AREAS...AN EML WAS TOO STRONG TO ALLOW CONVECTION TO CONDITIONS...WITH ONLY A FEW DROPS HAVING FALLEN AT WFO MQT TODAY AS A ROGUE SHOWER PASSED BY. CLOUD COVER HAS BEEN MORE EXTENSIVE DUE TO THE MORNING CONVECTION...AS WELL AS CONVECTION UPSTREAM OVER WI THAT HAS SENT HIGH CLOUDS OVER MUCH OF THE AREA. THIS HAS BROUGHT DOWN MAX TEMPS A FEW DEGREES FROM WHAT WAS PREVIOUSLY EXPECTED. STILL...MUGGY CONDITIONS PERSIST AS LOW-MID 80S TEMPS AND LOW 70S DEW POINTS ARE BEING OBSERVED. MODELS HAVE NOT PERFORMED WELL ALL DAY...EVEN THE HRRR HAS CONTINUED TO INITIALIZE WITH HEAVY PRECIP OVER WRN UPPER MI WHERE NON EXISTS. THIS SEEMS LIKELY DUE TO AN UNDERESTIMATION OF BOTH THE STRENGTH OF THE EML/CIN AND POOR HANDLING OF MORNING PRECIP/CLOUD COVER. LATEST RUNS OVER MANY HIGH-RES MODELS ARE NOW DOING A DECENT JOB WITH QPF OVER THE CWA AT THE PRESENT...BUT ARE VERY POOR IN THEIR HANDLING OF UPSTREAM CONVECTION OVER NERN MN (ASSOCIATED WITH A COLD FRONT MOVING SE) AND CONVECTION OVER WRN WI AND SOUTH MN AHEAD OF A SHORTWAVE AND WEAK SFC LOW NEAR THE MN/SD BORDER. THE HRRR IS HANDLING UPSTREAM CONVECTION WELL...AND IT ALSO IS SIMILAR TO THE OTHER MODELS BY TIME THE NEXT ROUND OF CONVECTION MOVES IN MAINLY AFTER 00Z THIS EVENING. THIS LENDS GREATER CONFIDENCE TO OTHER MODELS...SO WILL USE THEN SINCE THEY ALSO ARE DOING WELL NOW. MAIN MODELS USED ARE THE NAM...NAM DNG...REGIONAL GEM...NCEP HIGH-RES WRF ARW AND NMM. SHOWERS AND THUNDERSTORMS WILL MOVE IN AFTER 00Z THIS EVENING AS THE SHORTWAVE EJECTS INTO THE AREA AND THE SFC LOW MOVES THROUGH THE N...DRIVING THE COLD FRONT THROUGH. HEAVY RAIN IS EXPECTED IN ANY THUNDERSTORMS DUE TO WELL ABOVE NORMAL MOISTURE/PWATS. OTHER THREATS ARE POSSIBLY LARGE HAIL AND DAMAGING WINDS...MAINLY OVER THE W. MUCAPES OF 1000-1500J/KG (MAINLY THIS HIGH OVER THE W) AND 0-6KM BULK SHEAR AROUND 30 ARE MARGINAL VALUES...SO SOME STRONG TO SEVERE STORMS ARE POSSIBLE OVER THE W...BUT NOT LIKELY. STILL SOME UNCERTAINTY MON. MODELS GENERALLY AGREE THAT MOST OF THE PRECIP WILL BE E OF THE CWA BY 18Z...EXCEPT MAYBE A COUPLE NUISANCE SHOWERS OVER THE E. HOWEVER...THE NAM AND NCEP HIGH-RES WRF NMM ARE SHOWING CONVECTION BREAKING OUT IN THE AFTERNOON OVER ERN UPPER MI. HOWEVER...DID NOT INCORPORATE THAT INTO THE FORECAST AT THIS TIME AS THOSE MODELS SEEM TO BE OVERDOING SFC TEMPS AND INSTABILITY. SKIES SHOULD CLEARING FROM THE W...LAGGING THE LONGEST OVER THE E NEAR LAKE SUPERIOR. HIGHS SHOULD BE IN THE 70S TO AROUND 80...WARMEST FAR SOUTH CENTRAL. .LONG TERM...(MONDAY NIGHT THROUGH SUNDAY) ISSUED AT 449 PM EDT SUN SEP 6 2015 MONDAY NIGHT THROUGH TUESDAY...THE GFS AND ECMWF WERE IN RELATIVELY GOOD AGREEMENT WITH THE STRENGTH/POSITION OF THE SHORTWAVE MOVING OUT OF THE PLAINS TOWARD THE GREAT LAKES THAT SUPPORTS DEVELOPMENT OF A SFC WAVE ALONG THE FRONT. WITH MOST OF THE PCPN TO THE SOUTH OF THE CWA...CHANCE POPS WERE MAINTAINED FOR THE SE HALF...ESPECIALLY ALONG LAKE MICHIGAN. TUE NIGHT INTO WED...HIGH PRES WILL BUILD INTO THE WRN LAKES TUE NIGHT INTO WED WITH CLEARING SKIES. LOOK FOR TEMPS NEAR SEASONAL AVERAGES WITH LOWS AROUND 50 TO 55 AND HIGHS AROUND 70. THU-FRI...THE GFS/GEFS/ECMWF REMAIN IN RELATIVELY GOOD AGREEMENT WITH THE SHORTWAVE TROUGH DIGGING TOWARD THE UPPER MS VALLEY WED NIGHT AND THROUGH THE NRN LAKES THU. ELEVATED INSTABILITY MAY BE MARGINAL FOR TSRA...BUT WITH MODERATE TO STRONG DEEP LAYER QVECTOR CONV AND FAVORABLE MOISTURE TRANSPORT...AT LEAST ISOLD TS WILL BE POSSIBLE. THE 12Z ECMWF HAS TRENDED BACK TOWARD A DEEPER TROUGH INTO THE GREAT LAKES BY FRI WITH DEEP MOISTURE AND NRLY CYCLONIC FLOW THAT WOULD SUPPORT SHOWERS AND LAKE ENHANCED RAIN INTO UPPER MI. EVEN THOUGH GFS IS MORE PROGRESSIVE AND NOT AS DEEP WITH THE TROUGH...850 MB TEMPS TO AROUND 2C (LAKE TEMPS AROUND 15C) MAY STILL BE COLD ENOUGH TO PRODUCE SOME LAKE EFFECT PCPN. MORE FALL-LIKE CONDITIONS ARE EXPECTED WITH HIGHS ONLY IN THE UPPER 50S AND LOWER 60S FRI. SAT-SUN...ALTHOUGH A TRANSITION BACK TOWARD A MORE ZONAL PATTERN IS EXPECTED WITH MODERATING TEMPS SAT...THERE IS UNCERTAINTY WITH THE AMOUNT OF HEIGHT FALLS INTO THE NRN CONUS ASSOCIATED WITH A SHORTWAVE MOVING TOWARD HUDSON BAY OR NW ONTARIO. THE 12Z/6 ECMWF...UNLIKE THE DRY GFS AND 00Z/6 ECMWF DROPS A SHORTWAVE AND FRONT WITH PCPN INTO THE NRN LAKES. && .AVIATION...(FOR THE 18Z TAFS THROUGH 18Z MONDAY AFTERNOON) ISSUED AT 141 PM EDT SUN SEP 6 2015 A COLD FRONT AND SHORTWAVE WILL LEAD TO SHOWERS AND THUNDERSTORMS LATE THIS EVENING INTO TONIGHT. LOW CLOUDS AND SOME FOG WILL DEVELOP BEHIND THE COLD FRONT...BUT LOW CLOUDS AND FOG SHOULD DISSIPATE MON MORNING...OR POSSIBLY EARLY AFTERNOON AT KSAW. && .MARINE...(FOR THE 4 PM LAKE SUPERIOR FORECAST ISSUANCE) ISSUED AT 327 PM EDT SUN SEP 6 2015 FOG WILL REMAIN A CONCERN UNTIL THE FRONTAL PASSAGE LATE TONIGHT AS HIGH DEW POINTS KEEP MOVING ACROSS THE COLDER WATER. SOUTH WINDS TODAY WILL TURN WESTERLY ON MONDAY THEN DECREASE MON NIGHT INTO TUE. OVERALL...NEXT WEEK LOOKS FAIRLY QUIET ON THE LAKE WITH NO MAJOR SYSTEMS. && .MQT WATCHES/WARNINGS/ADVISORIES... UPPER MICHIGAN... NONE. LAKE SUPERIOR... NONE. LAKE MICHIGAN... NONE. && SHORT TERM...TITUS LONG TERM...JLB AVIATION...TITUS MARINE...TITUS
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MARQUETTE MI 451 PM EDT SUN SEP 6 2015 MIZ001>007-009>014-084-085-071230- KEWEENAW-ONTONAGON-NORTHERN HOUGHTON-BARAGA-MARQUETTE-ALGER-LUCE- GOGEBIC-IRON-DICKINSON-MENOMINEE-DELTA-SOUTHERN SCHOOLCRAFT- SOUTHERN HOUGHTON-NORTHERN SCHOOLCRAFT- 451 PM EDT SUN SEP 6 2015 /351 PM CDT SUN SEP 6 2015/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN UPPER MICHIGAN AND CENTRAL UPPER MICHIGAN. .DAY ONE...TONIGHT THUNDERSTORMS CAPABLE OF PRODUCING HEAVY RAIN ARE EXPECTED OVER WESTERN AND CENTRAL UPPER MICHIGAN TONIGHT. SOME THUNDERSTORMS MAY CONTAIN GUSTY WINDS AND SMALL HAIL ACROSS WESTERN UPPER MICHIGAN. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THUNDERSTORMS ARE POSSIBLE THROUGH MONDAY...MAINLY OVER THE EAST. THUNDERSTORMS WILL AGAIN BE POSSIBLE NEAR LAKE MICHIGAN TUESDAY AND ACROSS MUCH OF THE AREA THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT SEVERE WEATHER AND FLOODING TO THE NATIONAL WEATHER SERVICE OFFICE VIA OUR WEBSITE OR THROUGH FACEBOOK AND TWITTER. LSZ162-240>251-263>267-071230- LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND PORTAGE MN BEYOND 5NM-SAXON HARBOR WI TO BLACK RIVER MI- BLACK RIVER TO ONTONAGON MI- ONTONAGON TO UPPER ENTRANCE OF PORTAGE CANAL MI- UPPER ENTRANCE OF PORTAGE CANAL TO EAGLE RIVER MI- EAGLE RIVER TO MANITOU ISLAND MI- MANITOU ISLAND TO POINT ISABELLE MI- POINT ISABELLE TO LOWER ENTRANCE OF PORTAGE CANAL MI- LOWER ENTRANCE OF PORTAGE CANAL TO HURON ISLANDS MI INCLUDING KEWEENAW AND HURON BAYS-HURON ISLANDS TO MARQUETTE MI- MARQUETTE TO MUNISING MI-MUNISING TO GRAND MARAIS MI- GRAND MARAIS TO WHITEFISH POINT MI- LAKE SUPERIOR FROM SAXON HARBOR WI TO UPPER ENTRANCE TO PORTAGE CANAL MI 5NM OFF SHORE TO THE US/CANADIAN BORDER INCLUDING ISLE ROYALE NATIONAL PARK- LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER- LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI BEYOND 5NM FROM SHORE- LAKE SUPERIOR EAST OF A LINE FROM MANITOU ISLAND TO MARQUETTE MI AND WEST OF A LINE FROM GRAND MARAIS MI TO THE US/CANADIAN BORDER BEYOND 5NM FROM SHORE- LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF SHORE TO THE US/CANADIAN BORDER- 451 PM EDT SUN SEP 6 2015 /351 PM CDT SUN SEP 6 2015/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN LAKE SUPERIOR...CENTRAL LAKE SUPERIOR AND WESTERN LAKE SUPERIOR. .DAY ONE...TONIGHT THUNDERSTORMS ARE EXPECTED TONIGHT OVER ALL OF LAKE SUPERIOR. SOME THUNDERSTORMS MAY CONTAIN GUSTY WINDS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THUNDERSTORMS WILL BE POSSIBLE OVER EASTERN LAKE SUPERIOR MONDAY MORNING AND AGAIN THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE VIA OUR WEBSITE OR THROUGH FACEBOOK AND TWITTER. LMZ221-248-250-071230- GREEN BAY NORTH OF LINE FROM CEDAR RIVER MI TO ROCK ISLAND PASSAGE-SEUL CHOIX POINT TO POINT DETOUR MI- 5NM EAST OF A LINE FROM FAIRPORT MI TO ROCK ISLAND PASSAGE- 451 PM EDT SUN SEP 6 2015 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN LAKE MICHIGAN. .DAY ONE...TONIGHT THUNDERSTORMS ARE EXPECTED TONIGHT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THUNDERSTORMS ARE POSSIBLE MONDAY MORNING AND AGAIN TUESDAY AND THURSDAY. .SPOTTER INFORMATION STATEMENT... THE NEED FOR WEATHER SPOTTER REPORTS IS NOT ANTICIPATED AT THIS TIME. JLB
The Marquette radar (KMQT), 34 km away, was scanning. The volume nearest the first event began at 22:58 UTC.
1 lightning. Local standard time, as filed.
A fallen tree caused damage to a boat, a pickup truck and a camper awning in Van Riper State Park after it was struck by lightning. No injuries were reported.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2015Every state in 2015This day in weather historyWarnings in Michigan, September 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: 598540.