A line of thunderstorms, well ahead of a cold front, advanced out of Wisconsin and across Lake Michigan. The line produced a few spots of wind damage in Northern Lower Michigan.
Every event with a place to put it. 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 APX wrote it up.
A line of thunderstorms, well ahead of a cold front, advanced out of Wisconsin and across Lake Michigan. The line produced a few spots of wind damage in Northern Lower Michigan. Showers along the front itself managed to produce a waterspout on Torch Lake.
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 10, 1:43 PM EST, 1 hour 7 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GAYLORD MI 243 PM EDT TUE JUL 10 2007 .DISCUSSION...STRONG SHORTWAVE AND ASSOCIATED COLD FRONT WILL BE MOVING ACROSS COUNTY WARNING AREA TONIGHT. COLD FRONT CURRENTLY MOVING ACROSS WEST UPPER MICHIGAN AND INTO CENTRAL WISCONSIN. CURRENT MOVEMENT WILL BRING IT INTO EASTERN UPPER MICHIGAN AND NORTHWEST LOWER MICHIGAN AROUND 6 PM ET...THEN MOVING ACROSS OUR FORECAST AREA...EXITING TO THE SOUTHEAST BY MIDNIGHT. INCREASE IN MOISTURE ADVECTION OCCURRING ACROSS OUR SOUTHERN PART OF CWA AS DEW POINTS IN THE MID 60S REPORTED AT 17Z. 70 DEGREE DEW POINTS FARTHER TO THE SOUTH AND SOUTHWEST. ACTIVE WEATHER EXPECTED TO BE ONGOING FOR THIS AFTERNOONS FORECAST PACKAGE. MODELS AND MODEL SOUNDINGS CONTINUE TO SHOW BEST DYNAMICS MOVING ACROSS NORTHERN PART OF CWA...WHERE HIGHEST BULK SHEAR OF 60+ KNOTS AND BULK RICHARDSON NUMBERS ARE BETWEEN 10-45. CAPES MAY BE LIMITED ACROSS THE NORTH AS INCREASING CLOUDS ARE EXPECTED ALONG WITH LOWER DEW POINTS IN THE LOW TO MID 60S. ACROSS SOUTHERN HALF OF FORECAST AREA...MORE SUNSHINE HIGHER DEW POINTS EXPECTED TO PRODUCE MLCAPES OVER 2300 J/KG... WITH LIFTING INDEXS OF -4 TO -6. UPPER WIND LINEAR PATTERN MORE CONDUCIVE TO SQUALL LINE DEVELOPMENT ASSOCIATED WITH COLD FRONT. WILL NEED TO KEEP AN EYE ON THE PRE FRONTAL CONVECTIVE LINE DEVELOPING SOUTH OF GREEN BAY AND STARTING TO MOVE OUT INTO LAKE MICHIGAN. MAIN THREAT WILL BE DAMAGING WINDS THIS EVENING. CANT RULE OUT ISOLATED SUPERCELL ACROSS THE NORTH HALF OF FORECAST AREA THIS EVENING. WILL END PRECIPITATION ACROSS THE NORTHWEST BY 03Z...THEN ACROSS THE SOUTHEAST COUNTIES BY MORNING. SOME WRAP AROUND MOISTURE AND RAINSHOWERS EXPECTED ACROSS EASTERN UPPER MICHIGAN BY MORNING. HAVE MORE CLOSELY FOLLOWED THE COOLER MET TEMPERATURES. CAMPBELL LONG TERM (WEDNESDAY THROUGH TUESDAY)...WELL ADVERTISED...HIGHLY ANOMALOUS...WINTER-LIKE POSITIVE PNA PATTERN ALREADY IN THE PROCESS OF UNFOLDING AS VIGOROUS NORTHERN STREAM SHORTWAVES...ONE DROPPING ACROSS NORTHERN MINNESOTA WITH ANOTHER DIGGING INTO THE GULF OF ALASKA...BEGIN THE AMPLIFICATION PROCESS. CONSEQUENTLY...EXPECT NORTHERN MICHIGAN TO REMAIN ENTRENCHED IN DEEP NORTHWEST FLOW ON DOWNSTREAM SIDE OF WESTERN NOAM RIDGE AXIS...WHICH IS PROGGED TO EXTEND WELL NORTH INTO THE NORTHWEST TERRITORIES. TIMING OF REINFORCING SHORTWAVES...AND ASSOCIATED SHOWER AND THUNDERSTORM THREAT...DROPPING SOUTHEAST ACROSS THE NORTHERN LAKES REMAINS THE FORECAST CHALLENGE FOR THIS UNSEASONABLY COOL LONG TERM FORECAST PACKAGE. WEDNESDAY...CAA NORTHWEST FLOW RAMPS UP BEHIND TUESDAY NIGHTS COLD FRONTAL PASSAGE...DROPPING 850MB TEMPERATURES TO THE MID TO UPPER SINGLE DIGITS BY EVENING. NORTHERN PLAINS POTENT SHORTWAVE LAGS SURFACE FRONT BY SEVERAL HOURS...WITH EVENTUAL PASSAGE DURING THE MORNING HOURS. WILL CONTINUE CHANCE POPS FOR SHOWERS DURING THE MORNING ACROSS EASTERN UPPER MICHIGAN IN VICINITY OF BETTER MID LEVEL DYNAMICS AND MOISTURE. ALL IN ALL...LIKE PREVIOUS FORECASTER MENTIONED...EXPECT A DAY MORE REMINISCENT OF EARLY FALL WITH HIGHS IN THE 60S FOR MOST AREAS UNDER GUSTY NORTHWEST WINDS. WEDNESDAY NIGHT...FIRST IN THE SERIES OF SHORTWAVES ROTATING SOUTHEAST AROUND PARENT CLOSED HUDSON BAY/JAMES BAY MID LEVEL LOW CROSSES THE NORTHERN LAKES. HOWEVER...OVERNIGHT TIMING AND RELATIVELY LOW AMPLITUDE NATURE OF SHORTWAVE (WEAK DYNAMICS) PRECLUDE INSERTION OF POPS AT THIS TIME (ALTHOUGH WOULDN/T BE SURPRISED TO SEE A FEW SPRINKLES). CLOUD COVER AND WIND WILL KEEP TEMPERATURES FROM DROPPING TO THEIR FULL POTENTIAL. STILL...A RELATIVELY COOL NIGHT IN STORE FOR THE AREA WITH READINGS FALLING INTO THE UPPER 40S TO LOW 50S. THURSDAY AND THURSDAY NIGHT...MORE POTENT SHORTWAVE SET TO SWEEP THROUGH THE AREA...BRINGING A RENEWED THREAT OF MORE SHOWERS. WILL KEEP MENTION OF THUNDER CONFINED TO THURSDAY AFTERNOON AS POSSIBLE DIURNAL DESTABILIZATION INCREASES CONVECTIVE POTENTIAL. CONDITIONS DRY OUT LATER THURSDAY NIGHT AS SUBSIDENCE OVERSPREADS THE AREA BEHIND DEPARTING SHORTWAVE. 850MB TEMPERATURES REMAINING IN THE MID TO UPPER SINGLE DIGITS INSURES READINGS AVERAGING A GOOD 10 TO 15 DEGREES BELOW MID JULY NORMALS...WITH EXPECTED HIGH TEMPERATURES THURSDAY ONLY IN THE UPPER 60S TO LOW 70S AND LOWS THURSDAY NIGHT MAINLY IN THE UPPER 40S (A LITTLE WARMER NEAR THE LAKE SHORES). REST OF THE FORECAST (FRIDAY THROUGH TUESDAY)...PATTERN REMAINS VIRTUALLY STATUS-QUO...WITH SOME SEMBLANCE OF DEAMPLIFICATION DURING EARLY NEXT WEEK. STILL EXPECTING ADDITIONAL HARD TO TIME SHORTWAVES TO TRAVERSE THE NORTHWEST FLOW...WITH EACH BRINGING AN ADDITIONAL SHOWER AND THUNDERSTORM THREAT. RATHER THAN BROAD BRUSH CHANCE POPS THROUGH THE EXTENDED TO ACCOUNT FOR TIMING UNCERTAINTIES...HAVE TRIED TO PEG BEST POTENTIAL BASED OFF HPC GUIDANCE AND 00Z ECMWF MODEL PROGS (PREFERRED MODEL BY LATEST HPC DISCUSSIONS). THUS...WILL INCLUDE SHOWER AND STORM MENTION SATURDAY THROUGH SUNDAY AND AGAIN MONDAY. ALTHOUGH CONDITIONS WILL REMAIN SEASONALLY COOL...EXPECT A SLOW MODERATING TREND THROUGH THE PERIOD...MORE SO DUE TO AIRMASS MODIFICATION THAN WAA. IN GENERAL...LOOK FOR UPPER 60 TO LOW 70 HIGH TEMPERATURES ON FRIDAY TO APPROACH THE MID 70S TO LOW 80S BY TUESDAY. OVERNIGHT LOWS WILL BE IN THE 50S THROUGH THE PERIOD. MSB && .AVIATION...ISSUED AT 153 PM A STG STORM SYSTEM WILL MOV INTO WRN LAKE SUPERIOR THIS AFTN...MOVING TO JAMES BAY ONTARIO ARND 12Z WED. THE ASSOCIATED COLD FRONT LOCATED OVER ERN WIS THIS AFTN...WILL MOVE ONTO THE LAKE MICHIGAN SHORELINE AROUND 00Z TONIGHT. THIS COLD FRONT WILL THEN MOVE EAST AND EXIT INTO LAKE HURON AROUND 06Z TONIGHT. THUNDERSTORMS... SOUTHWEST WINDS GUSTING TO 25KT...PERIODS OF HVY RAIN AND HAIL TO ONE INCH CAN BE EXPECTED OVER NRN MI THIS AFTN AND EVE IN ADVANCE OF THE FRONT. BEHIND THE COLD FRONT BTW 06Z AND 12Z WED WINDS WILL BECOME WEST TO NORTHWEST 15 TO 20 KTS...WITH MVFR CIGS TO 30K FEET. VFR CONDS ARE EXPECTED AFT 12Z WED OVR NRN MI. SWR && .APX WATCHES/WARNINGS/ADVISORIES... NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GAYLORD MI 1045 AM EDT TUE JUL 10 2007 LHZ345>349-361-362-LMZ323-341-342-344-345-363-LSZ321-322-MIZ008- 015>036-041-042-111000- 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-MICHIGAN WATERS OF NORTHERN LAKE HURON- MICHIGAN WATERS OF CENTRAL LAKE HURON-GRAND TRAVERSE BAY- SEUL CHOIX PT TO MACKINAC BRDG-NORWOOD TO MACKINAC BRDG- SLEEPING BEAR PT TO GRAND TRAVERSE LT-MANISTEE TO SLEEPING BEAR PT- MICHIGAN WATERS OF NORTHERN LAKE MICHIGAN-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- 1045 AM EDT TUE JUL 10 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE HURON...LAKE MICHIGAN...LAKE SUPERIOR...EASTERN UPPER MICHIGAN AND NORTHERN LOWER MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT THUNDERSTORMS...ASSOCIATED WITH A COLD FRONT...WILL BECOME MORE NUMEROUS ACROSS THE NORTHERN LOWER MICHIGAN AND EASTERN UPPER MICHIGAN AFTER 3 PM...THEN INCREASE ACROSS ALL OF NORTHERN MICHIGAN THROUGH THE EVENING HOURS. THIS COLD FRONT WILL BE MOVING SOUTHEAST OF THE FORECAST AREA SHORTLY AFTER MIDNIGHT. SOME OF THESE STORMS MAY BE SEVERE...WITH THE BEST CHANCE OF SEVERE WEATHER BETWEEN 4 PM AND MIDNIGHT. THE PRIMARY SEVERE WEATHER THREAT WILL BE DAMAGING WINDS TO 70 MPH. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY MUCH COOLER TEMPERATURES WILL SETTLE ACROSS THE OUTLOOK AREA WEDNESDAY THROUGH SATURDAY WITH HIGH TEMPERATURES GENERALLY 5 TO 10 DEGREES BELOW NORMAL. THUNDERSTORMS ARE POSSIBLE ACROSS THE ENTIRE AREA THURSDAY AND AGAIN ON SATURDAY. .SPOTTER INFORMATION STATEMENT... SPOTTERS AND EMERGENCY MANAGERS...BE AWARE OF THE POTENTIAL FOR SEVERE WEATHER LATE THIS AFTERNOON AND EVENING. SPOTTER ACTIVATION MAY BE REQUIRED. JK/CAMPBELL
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE GAYLORD MI
1242 PM EDT TUE JUL 10 2007
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0335 PM TSTM WND DMG 3 S GLADWIN 43.94N 84.49W
07/09/2007 GLADWIN MI LAW ENFORCEMENT
NUMEROUS TREES AND POWER LINES DOWN BETWEEN GLADWIN AND
BEAVERTON.
0410 PM TSTM WND DMG STERLING 44.03N 84.02W
07/09/2007 ARENAC MI LAW ENFORCEMENT
NUMEROUS TREES DOWN. PENNY SIZE HAIL REPORTED AS WELL.
0410 PM HAIL STERLING 44.03N 84.02W
07/09/2007 E0.75 INCH ARENAC MI LAW ENFORCEMENT
NUMEROUS TREES ALSO REPORTED DOWN.
&&
A SLOW MOVING COLD FRONT MOVED ACROSS NORTHERN MICHIGAN
MONDAY...SPAWNING SHOWERS AND THUNDERSTORMS DURING THE AFTERNOON
HOURS. THESE STORMS BECAME SEVERE AS THEY MOVED ACROSS GLADWIN AND
ARENAC COUNTIES...KNOCKING DOWN NUMEROUS TREES AND POWERLINES. HAIL
UP TO PENNY SIZE WAS ALSO REPORTED.
IN ADDITION TO THE DAMAGE...A WEAK UNCONFIRMED TORNADO WAS REPORTED
NEAR BEAVERTON. A NATIONAL WEATHER SERVICE STORM SURVEY IS CURRENTLY
BEING CONDUCTED WHICH WILL TAKE A CLOSER LOOK AT SOME OF THE DAMAGE
FROM THESE STORMS.
ADDITIONAL SHOWERS AND THUNDERSTORMS ARE EXPECTED LATER THIS AFTERNOON
AND EVENING AS A POWERFUL COLD FRONT MOVES INTO NORTHERN MICHIGAN.
SEVERE STORMS ARE AGAIN POSSIBLE...WITH WINDS UP TO 70 MPH AND SMALL
HAIL.
KASThe NCL Michigan radar (KAPX), 48 km away, was scanning. The volume nearest the first event began at 19:49 UTC.
7 thunderstorm wind, 1 hail, 1 tornado. Local standard time, as filed.
A large tree was blown down.
A few trees and numerous tree limbs were downed. A car at the Petoskey post office was damaged by a falling tree.
Many trees and power lines were downed, from the east end of Little Traverse Bay, extending inland a few miles. One car was crushed by a falling tree. A woman at Petoskey State Park was briefly trapped inside a motorhome.
Trees were downed near Cinder Hill Road.
Several trees were downed. One building was damaged by a falling tree, and a car on South Otsego Avenue near the library was also struck and damaged.
Spotter estimated wind gust.
A large tree was blown over at the Alpena Regional Airport. A large tree was downed onto a house on the southwest side of Alpena, along US-23.
A waterspout, associated with some showers, came onshore as a weak tornado near the south end of Torch Lake. The waterspout tore up some docks, and downed a few tree limbs. It was estimated as a low-end EF0 tornado, with winds of around 65 mph. Note that it is not known where the waterspout initially touched down, as the waterspout was not observed until it was already moving onshore. The tornado dissipated almost immediately upon coming onshore.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2007Every state in 2007This day in weather historyThe tornado archive for Michigan, 2007Warnings in Michigan, July 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: 50541, 50542, 50543, 50544, 50545, 50535, 50547, 50546, 50539.