Thunderstorms grazed by the coast of Northeast Lower Michigan.
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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 APX wrote it up.
Thunderstorms grazed by the coast of Northeast Lower Michigan.
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 Gaylord, MI wrote its last area forecast discussion before the first event at Jul 24, 6:44 PM EST, 1 hour 8 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GAYLORD MI 744 PM EDT SUN JUL 24 2011 .SYNOPSIS.../ISSUED AT 354 PM/ WEAK HIGH PRESSURE WILL SLIDE EASTWARD FROM THE CENTRAL PLAINS AND INTO THE GREAT LAKES TONIGHT. THE HIGH WILL BRING A COOLER AND LESS HUMID AIR MASS INTO NORTHERN MICHIGAN LATE TONIGHT...AND THE FIRST HALF OF THE UPCOMING WORK WEEK. WHILE MOST PLACES WILL STAY DRY MONDAY...A WEAK COLD FRONT MAY TOUCH OFF A FEW SHOWERS IN THE U.P. AND NORTHEAST LOWER MONDAY AND MONDAY EVENING. DRY WEATHER WILL BE IN PLACE TUESDAY BEHIND THE FRONT. HEAT AND HUMIDITY WILL BEGIN TO CREEP BACK INTO THE NORTH WOODS BY WEDNESDAY...ALONG WITH RENEWED CHANCES OF SHOWERS AND STORMS AS ANOTHER WEAK FRONTAL BOUNDARY MOVES INTO THE AREA. JPB && .SHORT TERM.../ISSUED AT 354 PM/...TONIGHT MID AFTERNOON SURFACE ANALYSIS SHOWS A WEAK TROUGH AXIS LYING ACROSS NORTHWEST LOWER MICHIGAN...WITH MAIN CONVERGENCE AXIS ALONG THE M-37 CORRIDOR. ENOUGH HEATING ACROSS THIS CORNER OF THE FORECAST AREA HAS GENERATED ABOUT 1500-2000J/KG OF MLCAPE...AND A DECENT CU FIELD BUT HAVEN'T BEEN ABLE TO GET ANYTHING TO POP YET. NORTH OF THE M-72 CORRIDOR HAVE BEEN SOME SPOTTY RADAR RETURNS...WITH A SMALL CLUSTER OF THUNDERSTORMS MOVING EAST BETWEEN GREEN BAY AND GRAND TRAVERSE BAY (MAKING A BIT OF A RUN TOWARD GLR AND MY PARCHED LAWN...A DECENT RAINFALL AFTER ONLY A QUARTER INCH THUS FAR IN JULY WOULD BE A JOYOUS OCCASION). ANYHOW...CLOUD COVER HAS BEEN HOLDING TOUGH THROUGH THE AFTERNOON WITH ONLY A FEW THIN SPOTS ACROSS PARTS OF NORTHERN LOWER. NOT GOING TO GIVE UP THE GHOST JUST YET ON ADDITIONAL THUNDERSTORM DEVELOPMENT SOUTH OF M-32 DURING THE LATE AFTERNOON/EARLY EVENING HOURS. PERHAPS OUTFLOW FROM THE ENCROACHING CONVECTION OVER LAKE MICHIGAN CAN HELP THINGS ALONG. ONCE WE GET TO MID AND LATE EVENING AND INSTABILITY WANES...PRECIP CHANCES SHOULD FALL OFF WITH DRY/COLD AIR ADVECTION TAKING HOLD FOR THE OVERNIGHT HOURS. NORTH OF M-32 WILL CONTINUE TO MENTION A SCATTERED SHOWER OR TWO GIVEN WHAT HAS BEEN ONGOING SO FAR THIS AFTERNOON. EXPECT CLOUDS TO THIN DURING THE EARLY MORNING HOURS...WITH OVERNIGHT LOWS RANGING FROM THE UPPER 50S TO MID 60S. JPB && .LONG TERM.../ISSUED AT 354 PM/...MONDAY AND BEYOND SO FAR ONLY A FEW PLACES HAVE RECEIVED MUCH RAINFALL OVER THE LAST TWO DAYS (THE WHOLE MONTH ACTUALLY). THIS WILL HOPEFULLY CHANGE WITH MULTIPLE CHANCES OF RAIN FOR THE MID AND LATE WEEK PERIOD. IN ADDITION...A VERY MOIST AND HUMID AIR MASS WILL BRING THE POTENTIAL FOR SOME HEAVY RAINFALL AS WELL. TEMPERATURES WILL BE NEAR SEASONAL AVERAGES TO BEGIN THE WEEK THEN LIKELY BE SLIGHTLY ABOVE AVERAGE FOR THE REMAINDER OF THE PERIOD (ALTHOUGH WIDESPREAD DIURNAL CONVECTION COULD SUPPRESS READINGS). THE MAIN LONG TERM FORECAST CONCERNS REVOLVE AROUND POPS LATE MONDAY INTO MONDAY NIGHT...THEN AGAIN FOR WEDNESDAY THROUGH FRIDAY. MONDAY...A WEAK AREA OF HIGH PRESSURE SHOULD PROMOTE PARTLY TO MOSTLY SUNNY AND LESS HUMID CONDITIONS WITH A RATHER PLEASANT NORTHWEST BREEZE FOR MUCH OF THE DAY. HOWEVER...THE POSSIBLE EXCEPTION TO THIS WILL BE ACROSS EASTERN UPPER WHERE AN APPROACHING SHORT WAVE...DECENT INSTABILITY (MLCAPES OF CLOSE TO 1500 J/KG) AND SURFACE CONVERGENCE WILL BRING A CHANCE FOR SOME POPUP AFTERNOON THUNDERSTORMS ACROSS THE SOUTHERN HALF OF CHIPPEWA COUNTY AND TO MUCH OF MACKINAC COUNTY. HIGHS RANGING FROM THE UPPER 70S TO THE LOWER 80S. MONDAY NIGHT...ANY LINGERING CONVECTION ACROSS EASTERN UPPER SHOULD QUICKLY DIMINISH. OTHERWISE...THE SURFACE HIGH GETS SHUNTED OFF TO OUR SOUTH AS THE NORTHERN STREAM SHORT WAVE PASSES BY TO OUR NORTH. THE MAIN AREA OF MOISTURE/FORCING WITH THIS WAVE IS TO OUR NORTH ACROSS SOUTHERN ONTARIO. HOWEVER...THE NAM CONTINUES TO SPIT OUT SOME QPF. ALTHOUGH THIS STILL SEEMS OVERDONE...HAVE INSERTED SLIGHT CHANCE POPS ACROSS FAR NORTHERN LOWER FOR LIGHT SHOWERS (WHICH MAY END UP BEING A FEW SPRINKLES). LOWS IN THE MIDDLE 50S TO LOWER 60S. TUESDAY AND TUESDAY NIGHT...HEIGHTS BEGIN TO REBUILD WITH ANOTHER WEAK SURFACE HIGH MOVING IN FROM THE NORTHWEST. THIS SHOULD RESULT IN ANOTHER PERIOD OF PLEASANT MID SUMMER WEATHER WITH CONTINUED LOWER HUMIDITY. HIGHS RANGING FROM THE MIDDLE AND UPPER 70S NORTH TO THE LOWER 80S SOUTH. LOWS AGAIN RANGING FROM THE MIDDLE 50S TO THE LOWER 60S. WEDNESDAY THROUGH FRIDAY...WILL CONTINUE TO HOLD COURSE HERE WITH EXTENDED MODELS IN GOOD AGREEMENT WITH SLOWLY BUILDING HEIGHTS FOR WEDNESDAY AND THURSDAY. MEANWHILE...A WARM FRONT MOVES INTO THE REGION WEDNESDAY THEN STALLS OUT SOMEWHERE IN THE VICINITY OF THE AREA THROUGH AT LEAST THURSDAY NIGHT. AREAS OF LOW PRESSURE WILL LIKELY TRAVERSE THE FRONT FROM TIME TO TIME. A THETA-E RIDGE BUILDS IN AS WELL WITH PRECIPITABLE WATERS APPROACHING 1.75-2.0 INCHES (EXTREMELY MOISTURE RICH). A WEAK COLD FRONT THEN LOOKS LIKE IT WILL MOVE THROUGH THE REGION ON FRIDAY (SLIGHTLY FASTER TIMING THAN PREVIOUS MODEL RUNS). THEREFORE...THERE WILL BE CHANCES OF SHOWERS AND THUNDERSTORMS DURING THIS ENTIRE TIME PERIOD (THE BEST CHANCE NOW APPEARS TO BE WEDNESDAY NIGHT INTO THURSDAY WHERE HEAVY RAINFALL MAY BECOME A CONCERN). WARMER AND MORE HUMID DURING THIS TIME WITH HIGHS RANGING FROM THE MIDDLE 80S TO NEAR 90 (WITH THE DISCLAIMER THAT ANY LONG LIVED CONVECTIVE COULD HINDER DIURNAL WARMING) AND LOWS IN THE MUGGIER MIDDLE 60S TO THE LOWER 70S. SATURDAY AND SUNDAY...THE WEAK COLD FRONT SHOULD BE WELL SOUTHEAST OF THE AREA BY SATURDAY MORNING WITH YET ANOTHER AREA OF WEAK HIGH PRESSURE BUILDING IN. HEIGHTS REMAIN FAIRLY HIGH WITH NEARLY ZONAL FLOW. THEREFORE...EXPECT PARTLY CLOUDY SKIES ALONG WITH VERY WARM TEMPERATURES WITH HIGHS GENERALLY IN THE MIDDLE TO UPPER 80S AND LOWS IN THE 60S. SULLIVAN && .MARINE.../ISSUED AT 354 PM/ FAIRLY LIGHT NORTHWEST WINDS TONIGHT AS LOW PRESSURE MOVES OFF TO OUR EAST. THE PRESSURE GRADIENT BETWEEN THE DEPARTING LOW AND APPROACHING HIGH PRESSURE WILL LEAD TO SOMEWHAT GUSTY WESTERLY WINDS MONDAY. SOME SMALL CRAFT ADVISORIES COULD BE NEEDED IN THE AFTERNOON AND EVENING. WINDS SHOULD THEN DIMINISH MONDAY NIGHT WITH LIGHT NORTHWEST WINDS EXPECTED ON TUESDAY. AJS && .AVIATION.../ISSUED AT 744 PM/...VALID FOR 00Z TAFS LINGERING LOW CLOUDS IN THE WAKE OF AFTERNOON/EARLY EVENING CONVECTION WILL TEMPORARILY DROP CIGS TO MVFR AROUND PLN AND APN THRU AROUND 03Z. LOCATIONS ALONG AND SE OF A LINE FROM APN TO HTL WILL EXPERIENCE THIS LINGERING CONVECTION THRU 03Z AS WELL. CONDITIONS WILL IMPROVE TO SOLID VFR THEREAFTER...AND PERSIST THRU MONDAY EVENING AS HIGH PRESSURE BUILDS INTO NRN MICHIGAN. && .APX WATCHES/WARNINGS/ADVISORIES... MI...NONE. LH...NONE. LM...NONE. LS...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GAYLORD MI 358 PM EDT SUN JUL 24 2011 LHZ345>349-LMZ323-341-342-344>346-LSZ321-322-MIZ008-015>036-041-042- 251200- STRAITS OF MACKINAC-ST IGNACE TO FALSE DETOUR CHANNEL- MACKINAC BRDG TO PRESQUE ISLE LT-PRESQUE ISLE LT TO STURGEON PT- STURGEON PT TO ALABASTER-GRAND TRAVERSE BAY- SEUL CHOIX PT TO MACKINAC BRDG-NORWOOD TO MACKINAC BRDG- SLEEPING BEAR PT TO GRAND TRAVERSE LT-PT BETSIE TO SLEEPING BEAR PT- MANISTEE TO PT BETSIE-WHITEFISH BAY-ST. MARYS RIVER-CHIPPEWA- MACKINAC-EMMET-CHEBOYGAN-PRESQUE ISLE-CHARLEVOIX-LEELANAU-ANTRIM- OTSEGO-MONTMORENCY-ALPENA-BENZIE-GRAND TRAVERSE-KALKASKA-CRAWFORD- OSCODA-ALCONA-MANISTEE-WEXFORD-MISSAUKEE-ROSCOMMON-OGEMAW-IOSCO- GLADWIN-ARENAC- 358 PM EDT SUN JUL 24 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHERN LOWER MICHIGAN... EASTERN UPPER MICHIGAN...AND ADJACENT NEARSHORE WATERS OF LAKE MICHIGAN...LAKE HURON AND LAKE SUPERIOR. .DAY ONE...TONIGHT THUNDERSTORMS ARE STILL POSSIBLE THROUGH THIS EVENING ACROSS PORTIONS OF NORTHERN LOWER MICHIGAN ALONG AND SOUTH OF THE M-32 CORRIDOR. SOME HEAVY DOWNPOURS WILL ACCOMPANY THESE THUNDERSTORMS...BUT SEVERE WEATHER IS NOT EXPECTED. THE THUNDERSTORM THREAT SHOULD END BY MIDNIGHT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THERE IS A CHANCE FOR THUNDERSTORMS ACROSS EASTERN UPPER MICHIGAN MONDAY AFTERNOON. SEVERE STORMS ARE NOT EXPECTED AT THIS TIME. THUNDERSTORMS WILL AGAIN BE POSSIBLE FROM WEDNESDAY INTO FRIDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION SHOULD NOT BE NEEDED THROUGH TONIGHT. JPB
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GAYLORD MI 648 PM EDT SUN JUL 24 2011 MIZ034-242300- ROSCOMMON MI- 648 PM EDT SUN JUL 24 2011 ...SPECIAL WEATHER STATEMENT FOR STRONG THUNDERSTORMS... AT 645 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR ROSCOMMON COUNTY AIRPORT...OR NEAR PRUDENVILLE...MOVING SOUTHEAST AT 20 MPH. HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... PRUDENVILLE... LAKE ST. HELEN... NESTER TOWNSHIP... TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY.
The NCL Michigan radar (KAPX), 107 km away, was scanning. The volume nearest the first event began at 00:53 UTC.
2 marine thunderstorm wind. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Lake Huron in 2011Every state in 2011This day in weather history
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: 337387, 337394.