A southwest flow lake effect snow event developed in advance of an upper level system which moved into the area. There was a narrow band of four to seven inches of snow.
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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 GRR wrote it up.
A southwest flow lake effect snow event developed in advance of an upper level system which moved into the area. There was a narrow band of four to seven inches of snow.
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 Grand Rapids, MI wrote its last area forecast discussion before the first event at Mar 6, 12:27 PM EST, 2 hours 33 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1227 PM EST TUE MAR 6 2007 .UPDATE... SENT A QUICK UPDATE TO CARRY CLOUDY SKIES FOR THE REST OF TODAY AS MID CLOUDS ARE RAPIDLY THICKENING IN ISENTROPIC LIFT REGIME AHEAD OF APPROACHING CLIPPER. LATEST 12Z GUIDANCE SHOWS A BIT FARTHER SOUTH TRACK OF THE HEAVIEST QPF... ALTHOUGH MAX QPF ONLY ABOUT 0.20 NOW. HIGH SNOW RATIOS YIELD 4 INCHES OF SNOW ACCUMS WHERE MAX QPF BAND SETS UP. THIS LOOKS TO BE ALONG OR JUST SOUTH OF THE I-96 CORRIDOR. LAKE ENHANCEMENT REMAINS THE DIFFICULT ASPECT OF THIS SYSTEM. THERE IS CURRENTLY A DECENT LOOKING BAND OUT OVER THE LAKE WHICH MAY COME ONSHORE ONCE WINDS SWING AROUND TO THE SSW. HOWEVER THERE IS CONSIDERABLE SHEAR IN THE MIXED LAYER... WITH SSE WINDS AT THE SFC TURNING MORE WESTERLY AT H8. SUSPECT THAT BAND WILL COME ONSHORE IN THE NW CWFA AROUND LUDINGTON BY EVENING WHICH MAY GIVE AN EXTRA 1-2 INCHES IN ADDITION TO THE SYNOPTIC 2-4. HOWEVER ITS DOUBTFUL ANY LAKE ENHANCEMENT WILL OCCUR MUCH FARTHER INLAND DUE TO LIGHT FLOW. AM PLANNING ON LEAVING THE CURRENT ADVISORY AS IS AT 4 PM. && .GRR WATCHES/WARNINGS/ADVISORIES...SNOW ADVISORY TONIGHT FOR MASON...LAKE...OSCEOLA...CLARE...OCEANA...NEWAYGO...MUSKEGON...OTTAWA ...KENT AND ALLEGAN COUNTIES. && MEADE
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND RAPIDS MI 938 AM EST TUE MAR 6 2007 LMZ844>849-MIZ037>040-043>046-050>052-056>059-064>067-071>074-071115- ST JOSEPH TO SOUTH HAVEN-SOUTH HAVEN TO HOLLAND- HOLLAND TO GRAND HAVEN-GRAND HAVEN TO WHITEHALL- WHITEHALL TO PENTWATER-PENTWATER TO MANISTEE-MASON-LAKE-OSCEOLA- CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON-MONTCALM-GRATIOT- OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON-INGHAM-VAN BUREN- KALAMAZOO-CALHOUN-JACKSON- 938 AM EST TUE MAR 6 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT WIDESPREAD SNOW WILL AFFECT THE AREA TONIGHT. GENERALLY 2 TO 4 INCHES OF ACCUMULATION IS EXPECTED...ALTHOUGH LOCALLY HIGHER AMOUNTS ARE POSSIBLE. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED.
The national radar mosaic for the moment the first event began.
2 lake-effect snow. Local standard time, as filed.
Up to seven inches of snow was reported across portions of Clare county.
Up to six inches of snow was reported across portions of Newaygo county.
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, March 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: 20488, 20489.