A vigorous low pressure system produced nine to twelve inch snow accumulations across much of central lower Michigan.
Every event with a place to put it; 7 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 GRR wrote it up.
A vigorous low pressure system produced nine to twelve inch snow accumulations across much of central 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 Grand Rapids, MI wrote its last area forecast discussion before the first event at Feb 24, 10:54 PM EST, 6 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1054 PM EST SAT FEB 24 2007 .UPDATE... WE DOWNGRADED THE WARNING TO A WINTER WEATHER ADVISORY FROM ALLEGAN TO INGHAM COUNTIES AND THEN SOUTH. LATEST MODEL GUIDANCE AND RADAR TRENDS SUPPORT A BIT MORE FREEZING RAIN AND SLEET AND LESS SNOW IN THE NEW ADVISORY AREA. CURRENT SFC ANALYSIS SHOWS LOW PRESSURE IN EASTERN KS HAS ALREADY SHED 5MB SINCE EARLIER TODAY...IN LINE WITH MODEL TRENDS. ANOTHER TREND THAT IS SHOWING UP IS THE SPLIT IN THE PCPN CENTERS WITH ONE PCPN MAX MOVING UP ALONG THE WEST SIDE OF LAKE MICHIGAN AND THE OTHER AREA BEGINNING TO SPLIT OFF TOWARD NORTHEAST INDIANA. THIS IS IN LINE WITH MODEL GUIDANCE. WATER VAPOR IMAGERY SHOWS THE DRY SLOT CURRENTLY MOVING INTO ILLINOIS. THIS WILL LIKELY BE A PLAYER IN OUR WX SUNDAY MORNING AS THE PCPN DECREASES SUBSTANTIALLY AS THE DRY SLOT MOVES INTO LOWER MICHIGAN. LATEST NAM IS A BIT LESS AGRESSIVE WITH UVV/S IN THE DGZ OVERNIGHT...BUT STILL SUGGESTS THAT THE BULK OF THE PCPN WILL FALL FROM 06-12Z. SOUNDINGS INDICATE THAT WE MAY SEE A BIT MORE FREEZING PCPN OVER THE SOUTH WHICH WILL REDUCE SNOW AMOUNTS A BIT. THUS THE ADVISORY WAS ISSUED TO REPLACE THE WARNING IN THE SOUTHERN CWA. THE REST OF THE FCST IS LARGELY UNCHANGED. && .GRR WATCHES/WARNINGS/ADVISORIES...WINTER STORM WARNING UNTIL MONDAY MORNING ALONG AND NORTH OF I-96. WINTER WEATHER ADVISORY UNTIL MONDAY MORNING SOUTH OF I-96. SMALL CRAFT ADVISORY ST JOE TO MANISTEE THROUGH SUNDAY AFTERNOON. && 93
HAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1250 PM EST SAT FEB 24 2007 MIZ037>040-043>046-050>052-056>059-064>067-071>074-251215- MASON-LAKE-OSCEOLA-CLARE-OCEANA-NEWAYGO-MECOSTA-ISABELLA-MUSKEGON- MONTCALM-GRATIOT-OTTAWA-KENT-IONIA-CLINTON-ALLEGAN-BARRY-EATON- INGHAM-VAN BUREN-KALAMAZOO-CALHOUN-JACKSON- 1250 PM EST SAT FEB 24 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT A STRONG AND DEEPENING STORM CENTERED IN WESTERN KANSAS AT 11 AM THIS MORNING WILL MOVE TOWARD THE SOUTHERN GREAT LAKES FOR LATE TONIGHT. A LARGE AREA OF PRECIPITATION WITH STRONG WINDS WILL ACCOMPANY THIS STORM. EAST WINDS UP TO 30 MPH WITH HIGHER GUSTS WILL CREATED NEAR BLIZZARD CONDITIONS LATE TONIGHT NEAR AND NORTH OF INTERSTATE 96. AREAS SOUTH OF I- 96 WILL SEE A SIGNIFICANT ICING EVENT WITH SNOW AND SLEET CHANGING TO FREEZING RAIN DURING THE EARLY MORNING HOURS OF SUNDAY. SIGNIFICANT ICE ACCUMULATIONS ARE POSSIBLE NEAR AND SOUTH OF INTERSTATE 94. BETWEEN INTERSTATE 94 AND INTESTATE 96 A MIX OF SNOW...FREEZING RAIN AND SLEET IS EXPECTED DURING THE EARLY MORNING HOURS OF SUNDAY. STRONG WIND ARE EXPECTED THERE TOO. THAT COULD LEAD TO DOWNED POWER LINES AND TREE LIMBS. SNOWFALL AMOUNTS OF UP TO 5 INCHES IS POSSIBLE NEAR AND NORTH OF GRAND RAPIDS BY SUNRISE SUNDAY. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY VERY WINTER LIKE CONDITIONS WILL CONTINUE FROM SUNDAY INTO MONDAY. HEAVY SNOW IS POSSIBLE ON SUNDAY AND SUNDAY NIGHT WITH THE HEAVIEST ACCUMULATIONS ALONG AND NORTH OF A HOLLAND TO LANSING LINE. AN ADDITIONAL 4 TO 8 INCHES IS POSSIBLE IN THESE LOCATIONS. SOUTH OF THIS LINE...INCLUDING KALAMAZOO AND JACKSON...LESSER AMOUNTS OF SNOW ARE EXPECTED...HOWEVER THE PRECIPITATION START AS FREEZING RAIN...SLEET AND SNOW SUNDAY MORNING THEN CHANGE TO ALL SNOW BY LATE SUNDAY AFTERNOON. A SIGNIFICANT ACCUMULATION OF ICE IS POSSIBLE NEAR AND SOUTH OF INTERSTATE 94 SUNDAY. HAZARDOUS TRAVEL CONDITIONS ARE A DISTINCT POSSIBILITY LATE TONIGHT INTO MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED...BUT SNOW...SLEET AND ICING REPORTS WILL GREATLY BE APPRECIATED THE NEXT COUPLE DAYS. VISIT WWW.WEATHER.GOV/GRANDRAPIDS TO SUBMIT SPOTTER REPORTS. LOOK FOR THE SPOTTER REPORTS LINK TOWARD THE BOTTOM OF THE LEFT HAND SIDE ON THE FRONT PAGE. LMZ844>849-251215- ST JOSEPH TO SOUTH HAVEN-SOUTH HAVEN TO HOLLAND- HOLLAND TO GRAND HAVEN-GRAND HAVEN TO WHITEHALL- WHITEHALL TO PENTWATER-PENTWATER TO MANISTEE- 1250 PM EST SAT FEB 24 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT WAVES OF UP TO 4 FEET ARE EXPECTED TONIGHT...WHICH WILL POSE A HAZARD TO SMALLER CRAFT. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY WAVES TO 4 FEET ARE POSSIBLE SUNDAY MORNING...WHICH WILL POSE A HAZARD TO SMALLER CRAFT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. WDM
The national radar mosaic for the moment the first event began.
7 heavy snow. Local standard time, as filed.
Storm total snowfall of ten inches was reported across portions of Lake county.
Storm total snowfall of ten inches was reported across portions of Newaygo county.
Storm total snowfall of 12 inches was reported across portions of Osceola county.
Storm total snowfall of 12 inches was reported across portions of Clare county.
Storm total snowfall of 12 inches was reported across portions of Mecosta county.
Storm total snowfall of 12 inches was reported across portions of Isabella county.
Storm total snowfall of 9 inches was reported across portions of Montcalm 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, February 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: 18485, 18486, 18487, 18488, 18489, 18490, 18491.