A waterspout formed over northern Lake Michigan on the afternoon of the 25th.
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 MQT wrote it up.
A waterspout formed over northern Lake Michigan on the afternoon of the 25th.
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 Aug 25, 6:35 AM EST, 8 hours 23 minutes earlier.
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE MARQUETTE MI 735 AM EDT SAT AUG 25 2007 UPDATED FOR AVIATION DISCUSSION .DISCUSSION (ISSUED AT 436 AM EDT)... CURRENT RADAR/WV IMAGERY TRENDS INDICATE ISOLTD SHOWERS CURRENTLY OVER CENTRAL WI OVER TIME WILL TRACK CLOSE TO NORTHERN LAKE MICHIGAN SHORELINE...EXTENDED CURRENT WEATHER GRID EASTWARD TO ACCOUNT FOR THIS. ALSO LIGHT SHOWERS OVER CENTRAL MN WILL TRACK TOWARDS U.P. AND BE NEAR IWD BY 12Z OR SO. OPTED TO ADD IN ISOLATED SHOWERS FOR TODAY. 500MB TROUGH PASSES THROUGH CWA THROUGHOUT THE MORNING AND EARLY AFTN. PREVIOUS THINKING WAS THIS PASSAGE WOULD BE TOO EARLY TO TAP INTO A HEATING CONTRIBUTION. ALSO BETTER DYNAMICS ARE OUT OF THE FA BY THIS TIME. DESPITE THIS...ENOUGH MID LEVEL COOLING LOOKS TO OCCUR TO AT LEAST MENTION SLIGHT CHANCE FOR SHOWERS. FOR NOW COVERAGE LOOKS TO BE WEST AND CENTRAL AS SOUNDINGS OUT EAST STILL LOOK TOO DRY. THIS FEATURE LOOKS TO BE OUT OF HERE BY 00Z. ALSO GIVEN APPEARANCE OF QPF IN NAM/GFS/RUC DURING THIS MORNING AND AFTERNOON MAKES IT EVEN HARDER TO KEEP FCST DRY. HIGH PRESSURE BEGINS TO SETTLE IN BY SAT EVENING...THIS ALONG WITH LIGHT WINDS SHOULD YIELD GOOD RADIATIONAL COOLING. TEMPS IN THE LOW 40S ARE LIKELY. RETURN FLOW ON SUNDAY WILL BRING WARMER TEMPS ALONG WITH INCREASING MOISTURE. BRIEF CLEARING SUNDAY NIGHT WOULD ALLOW FOR GOOD RADIATIONAL COOLING...HOWEVER SURFACE WINDS LOOK TO REMAIN STRONG ENOUGH TO OFFSET RADIATIONAL INFLUENCES. ALSO INCREASING MOISTURE AHEAD OF TUESDAYS FRONTAL PASSAGE WILL LIMIT COOLING AT LEAST IN THE WEST. WILL RAISE LOWS A BIT TO ACCOUNT FOR THIS TREND IN GUIDANCE. SOME INDICATIONS THAT CWA MONDAY MORNING/AFTN COULD SEE PRECIP IN THE WEST. LATEST GUIDANCE...UKMET/GFS/NAM/LOCAL WRF RUNS/GFS ENSEMBLE MEMBERS INDICATE SOME PRECIP. OCCURING IN THE EARLY AFTERNOON...WITH THE MAIN AXIS REMAINING OVER MN. DISCUSSED WITH SURROUNDING OFFICES PUTTING IN PRECIP. BUT OPTED TO WAIT. MON MORN/AFTN LOOKS TO BE CAPPED WITH A STRONG WARM LAYER NOTED AROUND 800-700MB LAYER PER BUFKIT GFS/NAM SOUNDING. STREGHTENING 850MB JET OF 35KT PASSES THROUGH WESTERN HALF OF UPPER MICHIGAN MONDAY AFTN PER 00Z GFS RUN AND THEN STREGHTENS A BIT MORE BY EARLY EVENING. TIMING OF LOW LEVEL JET ISNT IDEAL AS ITS PASSING LATER IN THE EVENING MIGHT BE MORE IDEAL. SO IF ANY PRECIP. OCCURS ON MONDAY IT WOULD BE ELEVATED...BUFKIT SOUNDING FOR IWD HAS BASES AROUND 750MB. NOT ENOUGH CONFIDENCE NOW TO ADD IN PRECIP BUT WITH MODEL CONSENSUS AS IT IS THIS IS SOMETHING TO MONITOR FOR SURE. TIMING OF FRONT ON TUESDAY IS STILL IFFY. DPROG/DT FOR THE ECMWF SHOWS THE A FASTER TREND FROM THE LAST RUN...ALSO THE FRONT IS MORE OF AN OPEN WAVE AS OPPOSED TO THE INVERTED TROUGH IN THE 00Z RUN FROM YESTERDAY. THE GFS IF ANYTHING THE PAST FOUR RUNS HAS BEEN CONSISTENT WITH ITS TIMING...BRINING THE FRONT TO MID LAKE SUPERIOR BY 6Z TUES AND THRU THE CWA SOMETIME AFTER 12Z. GOOD RUN TO RUN CONSISTENCY WITH THE GFS IS HARD TO IGNORE. THINK THE FINAL SOLUTION CONTINUES TO BE SOMEWHERE IN THE MIDDLE. IN THE END THOUGH THINK A FASTER SOLUTION MAY BE REALIZED. SURROUNDING OFFICES NOTED A SIMILAR THINKING. SEE 12PLANET LOG. && .AVIATION (FOR THE 12Z TAF ISSUANCE)... FAIRLY IMPRESSIVE LOOKING UPPER LEVEL DISTURBANCE LIFTING ENE THRU THE UPPER GREAT LAKES LOOKS LIKE IT WILL PASS UNEVENTFULLY THIS MORNING. SYSTEM WAS PRODUCING SOME SCT -SHRA UPSTREAM EARLIER THIS MORNING...BUT THOSE -SHRA HAVE DISSIPATED. A COUPLE OF -SHRA OR SPRINKLES STILL CANT BE RULED OUT...BUT AT THIS POINT...ITS NOT WORTH A MENTION AT EITHER KCMX/KSAW. VFR CONDITIONS WILL PREVAIL FOR THIS ENTIRE FCST PERIOD. && .MARINE (FOR THE 4 AM LAKE SUPERIOR FORECAST ISSUANCE)... EXPECT FAIRLY LIGHT WINDS UNDER 20KT OVER LAKE SUPERIOR THROUGH SUN MORNING. THE STRONGER WINDS TODAY (AT TIMES IN THE 15-20KT RANGE) WILL OCCUR OVER EASTERN LAKE SUPERIOR...ESPECIALLY TOWARD THE SE PART OF THE LAKE AS WINDS BECOME NW DURING THE AFTN. WINDS WILL STRENGTHEN SUN AFTN THROUGH MON NIGHT AS PRES GRADIENT TIGHTENS BETWEEN HIGH PRES OVER NEW ENGLAND AND A COLD FRONT APPROACHING FROM THE NORTHERN PLAINS. SHOULD SEE SOUTHERLY 15-25KT WINDS DEVELOP OVER THE E HALF OF LAKE SUPERIOR EARLY SUN EVENING AND PERSIST THRU MON NIGHT. ALTHOUGH SUSTAINED WINDS WILL PROBABLY BE AROUND 20KT FOR THE MOST PART...THERE SHOULD BE FREQUENT GUSTS TO AROUND 30KT... ESPECIALLY AT THE HIGHER OBSERVING PLATFORMS. WINDS WILL BE LIGHTER OVER THE W HALF OF THE LAKE AS THEY COMMONLY ARE IN SOUTHERLY FLOW. COLD FRONT WILL CROSS THE LAKE A LITTLE SOONER ON TUE THAN INDICATED IN PREVIOUS FORECASTS. AT THIS TIME...IT DOES NOT LOOK LIKE WINDS WILL EXCEED 20KT AFTER THE FRONT PASSES. && .MQT WATCHES/WARNINGS/ADVISORIES...NONE && DISCUSSION...PEARSON AVIATION/MARINE...ROLFSON
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MARQUETTE MI 248 PM EDT SAT AUG 25 2007 MIZ001>007-009>014-084-085-261200- KEWEENAW-ONTONAGON-NORTHERN HOUGHTON-BARAGA-MARQUETTE-ALGER-LUCE- GOGEBIC-IRON-DICKINSON-MENOMINEE-DELTA-SOUTHERN SCHOOLCRAFT- SOUTHERN HOUGHTON-NORTHERN SCHOOLCRAFT- 248 PM EDT SAT AUG 25 2007 /148 PM CDT SAT AUG 25 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN UPPER MICHIGAN AND CENTRAL UPPER MICHIGAN. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THUNDERSTORMS ARE POSSIBLE MONDAY AFTERNOON ACROSS WESTERN UPPER MICHIGAN...AND ACROSS THE ENTIRE AREA MONDAY NIGHT THROUGH TUESDAY. HERE IS A CHANCE OF THUNDERSTORMS MONDAY NIGHT THROUGH TUESDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. LSZ221-241>248-263-264-261200- KEWEENAW BAY AND HURON BAY FROM LOWER ENTRANCE LIGHT TO PORTAGE LAKE TO HURON ISLANDS MI-SAXON HARBOR WI TO ONTONAGON MI- ONTONAGON TO UPPER ENTRANCE OF PORTAGE CANAL MI- UPPER ENTRANCE OF PORTAGE CANAL TO MANITOU ISLAND MI- MANITOU ISLAND TO LOWER ENTRANCE OF PORTAGE CANAL MI- HURON ISLANDS TO MARQUETTE MI-MARQUETTE TO MUNISING MI- MUNISING TO GRAND MARAIS MI-GRAND MARAIS TO WHITEFISH POINT MI- LAKE SUPERIOR, EAST OF A LINE FROM SAXON HARBOR WI TO GRAND PORTAGE, MN, TO A LINE NORTHWARD FROM MANITOU IS. MI, BEYOND 5 NM AND SOUTH OF THE US/CANADIAN BORDER- LAKE SUPERIOR, EAST OF A LINE FROM MANITOU IS. MI NORTHWARD BEYOND 5 NM AND SOUTH OF THE US/CANADIAN BORDER, EXCLUDING WHITEFISH BAY- 248 PM EDT SAT AUG 25 2007 /148 PM CDT SAT AUG 25 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN LAKE SUPERIOR...CENTRAL LAKE SUPERIOR AND WESTERN LAKE SUPERIOR. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THUNDERSTORMS ARE POSSIBLE ACROSS WESTERN LAKE SUPERIOR MONDAY...AND THEN ALL OF LAKE SUPERIOR MONDAY NIGHT THROUGH TUESDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. LMZ221-248-262-261200- BAY OF GREEN BAY NORTH OF LINE FROM CEDAR RIVER MI TO ROCK ISLAND PASSAGE-SEUL CHOIX POINT TO POINT DETOUR MI- LAKE MICHIGAN...FROM SEUL CHOIX POINT TO ROCK ISLAND PASSAGE...SOUTHEASTWARD BEYOND 5 NM OFF SHORE TO THE MID- LINE OF THE LAKE- 248 PM EDT SAT AUG 25 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN LAKE MICHIGAN. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THUNDERSTORMS ARE POSSIBLE MONDAY NIGHT THROUGH TUESDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. KF
The Marquette radar (KMQT), 143 km away, was scanning. The volume nearest the first event began at 19:55 UTC.
1 waterspout. Local standard time, as filed.
Waterspout lasted approximately 15 minutes.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Lake Michigan in 2007Every state in 2007This 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: 54249.