Dense fog formed in Marquette and Baraga counties on the morning of the 3rd and then continued into the afternoon hours before dissipating.
Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. 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.
Dense fog formed in Marquette and Baraga counties on the morning of the 3rd and then continued into the afternoon hours before dissipating.
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 Apr 3, 3:45 AM EST, 3 hours 15 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MARQUETTE MI 445 AM EDT TUE APR 3 2007 ...MAJOR LATE SEASON WINTER STORM TOMORROW INTO WEDNESDAY... ...TRAVEL NOT RECOMMENDED TUESDAY NIGHT INTO WEDNESDAY... .DISCUSSION... THE MAIN CONCERN WITH THIS FORECAST PACKAGE IS THE POTENTIAL FOR SNOW TODAY THROUGH WEDNESDAY. WATER VAPOR IMAGERY AND RUC SHOWING A LONGWAVE TROUGH OVER CENTRAL NORTH AMERICA...WITH WEAK RIDGES OVER THE GREAT LAKES AND OVER THE PACIFIC NORTHWEST. SURFACE ANALYSIS INSIST ON A LOW JUST SOUTHEAST OF JAMES BAY AND A DEEPER LOW OVER EASTERN IOWA. A WARM FRONT EXTENDS EAST FROM THE SECOND LOW ACROSS THE OHIO RIVER VALLEY. A COLD FRONT DRAPES SOUTHWEST THROUGH CENTRAL OKLAHOMA. LOW LEVEL MOISTURE WRAPPING AROUND THIS LOW IS FEEDING THUNDERSTORMS OVER NEBRASKA AND IOWA THIS MORNING AND SOME SNOW OVER THE NORTHERN PLAINS. THE MID LEVEL TROUGH WILL DEEPEN INTO A CLOSED LOW OVER MINNESOTA TODAY AS THE RIDGE OVER THE FORECAST AREA SHIFTS EAST TO THE ONTARIO/QUEBEC BORDER. SHORTWAVE ENERGY WRAPPING AROUND THIS LOW WILL DEVELOP AND SWING THROUGH WISCONSIN TODAY. THE SURFACE LOW WILL MOVE OUT OF EASTERN IOWA INTO THE KGRR AREA OF LOWER MICHIGAN DRAGGING THE COLD FRONT INTO INDIANA AND WESTERN KENTUCKY BY 00Z WEDNESDAY. A RIDGE WILL PUSH INTO SOUTH CENTRAL CANADA AND DAKOTAS. 850-500MB Q-VECTOR CONVERGENCE WILL INCREASE ACROSS THE AREA AHEAD OF THE MID LEVEL LOW. THE SURFACE WINDS NORTH OF THE LOW WILL SHIFT NORTH ACROSS THE AREA. THE GREATEST AMOUNT OF DEEP MOISTURE WILL BE FOCUSED OVER THE FORECAST AREA AROUND 00Z THIS EVENING. THE MID LEVEL LOW WILL SHIFT TO NORTHERN LOWER MICHIGAN WITH SHORTWAVE ENERGY SWOOPING ABOVE LOWER MICHIGAN TONIGHT. THE SURFACE LOW WILL MANEUVER OVER NORTHERN LAKE HURON KEEPING THE WINDS OUT OF THE NORTH. 290K ISENTROPIC ANALYSIS INDICATE ASCENT NORTH OF THE LOW WHICH WILL HELP TO PRODUCE LIFT OVER THE AREA. THE AREA OF Q-VECTOR CONVERGENCE WILL SHIFT TO THE EASTERN U.P. THE BASE OF LOWEST INVERSION WILL BE AROUND 3K FEET. THUS CAN EXPECT SOME LAKE EFFECT ENHANCEMENT AS WELL. THE LOW INVERSION WILL HELP TO LIMIT SNOWFALL. THE NORTH SHORE OF THE FORECAST AREA WILL RECEIVED THE HEAVIEST AMOUNT MAINLY OVER THE EASTERN U.P. BY LATE OVERNIGHT. THE MID LEVEL LOW WILL MOVE GEORGIAN BAY ON WEDNESDAY. THE STRONGEST SHORTWAVE ENERGY WILL ROTATE ACROSS THE LOWER GREAT LAKES. THE SURFACE LOW WILL LIKEWISE MOVE THROUGH NORTHERN GEORGIAN BAY. ISENTROPIC ASCENT WILL DIMINISH THROUGH THE DAY AND THE Q-VECTOR CONVERGENCE WILL MOVE INTO EAST CENTRAL ONTARIO. DEEP MOISTURE WILL ALSO SHIFT EAST. THE LOWEST INVERSION WILL LIFT TO 4.5K FEET. THUS SNOWFALL SHOULD DIMINISH. THE MID LEVEL LOW WILL MOVE TO THE QUEBEC BORDER WEDNESDAY NIGHT. DRIER AIR WILL ADVECT INTO THE AREA AROUND 800 MB AND ABOVE. THE LOWEST INVERSION WILL REMAIN AROUND 4.5K FEET. THE MEAN RH BELOW 850MB WILL REMAIN AROUND 90 PERCENT OVER THE AREA. THE NORTHERN PLAINS RIDGE WILL CONTINUE TO BUILD. A WEAK SHORTWAVE WILL MOVE ACROSS THE FORECAST AREA. THE 850MB TEMPERATURE WILL BE AROUND -17C OVER LAKE SUPERIOR. SURFACE WINDS WILL SHIFT A LITTLE WEST OF NORTH. PURE LAKE EFFECT SNOWS WILL BE THE RULE. THE MID LEVEL LOW OVER THE ONTARIO BORDER WILL STALL OUT AND BECOME ELONGATED BACK ACROSS CENTRAL ONTARIO ON THURSDAY. SHORTWAVES ROTATING AROUND THIS LOW WILL SWEEP THROUGH THE FORECAST AREA. LOW LEVEL RH WILL WILL REMAIN OVER THE AREA. THE SURFACE RIDGE OVER THE NORTHERN PLAINS WILL SPREAD INTO THE UPPER MISSISSIPPI RIVER VALLEY WHILE DRY AIR ADVANCE INTO THE FORECAST AREA. THE 850MB TEMPERATURE WILL BE AROUND -17C. WITH THE LAKE TEMPERATURES AROUND 2C CONSIDER LAKE EFFECT CONDITIONS TO PERSIST. THE AREAS DOWN WIND FROM A NORTHWEST WINDS WILL BE THE AREA WITH THE MOST PERSISTENT LES. WESTERN LAKE SUPERIOR WILL HAVE LIMITED AMOUNT OF LES DUE TO THE SHORTER FETCH. THE LOW WILL FINALLY SHIFT INTO SOUTHERN QUEBEC. WEAK SHORTWAVE ENERGY WILL ROTATE THROUGH THE FORECAST AREA ENROUTE AROUND THE BASE OF THE THE MID LEVEL LOW. DEEP MOISTURE WILL REMAIN OVER THE FORECAST AREA. AN 850MB THERMAL POCKET WILL MOVE INTO CENTRAL ONTARIO JUST NORTHEAST OF LAKE SUPERIOR CAUSING THE DELTA-TS OVER THE BIG LAKE TO INCREASE TO AROUND 22C. SURFACE WINDS WILL REMAIN OUT OF THE NORTHWEST PRODUCING LAKE EFFECT SNOW OVER THE AREAS MOST PRONE TO LAKE EFFECT SNOWS WITH A NORTHWEST FLOW. && .MQT WATCHES/WARNINGS/ADVISORIES... WINTER STORM WARNING 8 AM EDT /7 PM CDT/ TUE TO 8 PM EDT /7 PM CDT/ WED MIZ002-009. WINTER STORM WARNING THROUGH 1 PM CDT WED FOR MIZ010-011. WINTER STORM WARNING 2 PM TUE TO 8 PM EDT WED MIZ001-003>006-014-084. WINTER STORM WARNING 6 PM TUE TO 8 PM EDT WED MIZ007-012-013-085. GALE WARNING LAKE SUPERIOR. && DLG
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MARQUETTE MI 605 AM EDT TUE APR 3 2007 MIZ001>007-009>014-084-085-041015- KEWEENAW-ONTONAGON-NORTHERN HOUGHTON-BARAGA-MARQUETTE-ALGER-LUCE- GOGEBIC-IRON-DICKINSON-MENOMINEE-DELTA-SOUTHERN SCHOOLCRAFT- SOUTHERN HOUGHTON-NORTHERN SCHOOLCRAFT- 605 AM EDT TUE APR 3 2007 /505 AM CDT TUE APR 3 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN UPPER MICHIGAN AND CENTRAL UPPER MICHIGAN. .DAY ONE...TODAY AND TONIGHT A LOW PRESSURE SYSTEM OVER IOWA WILL DEEPEN RAPIDLY AS IT MOVES TO NORTHERN LAKE HURON LATE TONIGHT. COLD AIR FLOWING IN FROM CANADA ON THE NORTH SIDE OF THE SYSTEM WILL COMBINE WITH MOISTURE FROM THE GULF OF MEXICO TO PRODUCE SIGNIFICANT SNOWFALL ACROSS MUCH OF UPPER MICHIGAN TODAY AND TONIGHT. 5 TO 12 INCHES OF TOTAL SNOWFALL IS POSSIBLE ACROSS MUCH OF UPPER MICHIGAN...WITH UP TO 15 INCHES TOTAL POSSIBLE OVER THE HIGHER TERRAIN NEAR LAKE SUPERIOR. SEE THE LATEST WINTER WEATHER STATEMENT FOR MORE DETAILS. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY SIGNIFICANT SNOWFALL WILL CONTINUE ACROSS MUCH OF UPPER MICHIGAN ON WEDNESDAY. 2 TO 7 INCHES OF ADDITIONAL SNOWFALL IS POSSIBLE ACROSS MUCH OF UPPER MICHIGAN. THE HEAVIEST SNOW FALL WILL BE ALONG AND NORTH OF M 28 BETWEEN MUNISING AND NEWBERRY. SEE THE LATEST WINTER WEATHER STATEMENT FOR MORE DETAILS. THERE IS A POTENTIAL FOR MODERATE TO HEAVY LAKE EFFECT SNOW FOR AREAS FAVORED BY NORTHWEST WINDS WEDNESDAY NIGHT AND THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED...BUT WE APPRECIATE SNOW REPORTS. PLEASE CALL 906 475 5212 TO PHONE IN YOUR REPORT...OR SEND US A REPORT ON LINE AT WWW.WEATHER.GOV/MQT (ALL LOWERCASE). LSZ221-241>248-263-264-041015- 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- 605 AM EDT TUE APR 3 2007 /505 AM CDT TUE APR 3 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN LAKE SUPERIOR...CENTRAL LAKE SUPERIOR AND WESTERN LAKE SUPERIOR. .DAY ONE...TODAY AND TONIGHT GALE FORCE WINDS TO 40 KT ARE EXPECTED OVER THE EASTERN TWO THIRDS OF LAKE SUPERIOR LATE TONIGHT. GALE FORCE WIND GUSTS ARE POSSIBLE ON THE WESTERN THIRD OF LAKE SUPERIOR TONIGHT. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY GALE FORCE WINDS TO 40 KT ARE EXPECTED OVER THE EASTERN TWO THIRDS OF LAKE SUPERIOR WEDNESDAY THROUGH FRIDAY. GALE FORCE GUSTS ARE POSSIBLE ON THE WESTERN THIRD ON WEDNESDAY AND WEDNESDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. LMZ221-248-262-041015- 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- 605 AM EDT TUE APR 3 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT GALE FORCE WINDS ARE EXPECTED ON THE OPEN WATERS OF NORTHERN LAKE MICHIGAN AFTER MIDNIGHT TONIGHT. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY GALE FORCE WINDS ARE EXPECTED ON THE OPEN WATERS OF NORTHERN LAKE MICHIGAN WEDNESDAY INTO THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. DLG
The national radar mosaic for the moment the first event began.
2 dense fog. Local standard time, as filed.
Widespread dense fog reduced visibility to one-quarter mile or less.
Widespread dense fog reduced visibility to one-quarter mile or less.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2007Every state in 2007This day in weather historyWarnings in Michigan, April 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: 26237, 26238.