3 thunderstorm wind, as filed by the National Weather Service.
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 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 Jul 17, 10:19 AM EST, 3 hours 46 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1120 AM EDT THU JUL 17 2003 COLD FRONT CURRENTLY NEAR AN APN TO GRB LINE. A FEW STORMS HAVE DEVELOPED AND THEN DIMINISHED ALONG THIS FRONT THIS MORNING OVER NORTHERN WI/MI AS THE INSTABILITY IS WEAK ATTM AND CIN VALUES ARE RATHER HIGH. THE FRONT WILL PROGRESS SOUTH INTO THE CWA DURING THE AFTERNOON AND PASS THROUGH THE CWA BY EARLY EVENING. SKIES ARE MOSTLY SUNNY AHEAD OF THIS FRONT OVER MUCH OF THE CWA THIS MORNING. THIS WILL ALLOW TEMPS TO REACH INTO THE LOWER 80S AHEAD OF THE FRONT. MOISTURE IS POOLING NEAR THE COLD FRONT WHERE DEWPOINTS ARE IN THE MID AND UPPER 60S. THESE HIGHER DEWPOINTS ARE INDICATED TO ADVECT INTO THE CWA JUST AHEAD OF THE FRONT THIS AFTERNOON. THIS WILL PUSH CAPE VALUES TO AROUND 2000 J/KG THIS AFTERNOON. WITH THIS INSTABILITY EXPECT WELL SEE A BROKEN EAST TO WEST LINE OF STORMS DEVELOP BY EARLY AFTERNOON OVER THE NORTHERN CWA WHICH SHOULD SLIDE ACROSS THE REST OF THE CWA INTO THE EVENING. WILL BUMP POPS INTO THE LIKELY CATEGORY OVER THE ENTIRE CWA. THERE IS STILL SOME CONCERN FOR ISOLATED SEVERE THUNDERSTORMS AS MID LAYER DRYING IS PRESENT... ALONG WITH 40 TO 45 KT WINDS IN THE MID LEVELS. THERE IS ALSO A DECENT AMOUNT OF SHEAR IN THE 0-4KM TO SUPPORT A FEW STRONGER STORMS. WILL UPDATE SKY CONDITIONS FOR SUNSHINE...MAINLY EARLY...AND ALSO ADJUST TEMP FORECAST UP DUE TO THE ADDED SUNSHINE...ALONG WITH BUMPING UP POPS. .GRR...NONE.
MIZ037>040-043>046-050>052-056>059-064>067-071>074-181000- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1145 AM EDT THU JUL 17 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE SOUTHWEST QUARTER OF LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT A LINE OF STRONG THUNDERSTORMS IS EXPECTED TO DEVELOP EARLY THIS AFTERNOON ALONG A COLD FRONT OVER CENTRAL LOWER MICHIGAN. THIS LINE WILL MOVE SOUTH INTO THE SOUTHERN MICHIGAN BY LATE AFTERNOON AS THE FRONT DRIFTS SOUTH. A FEW OF THE STRONGER STORMS COULD PRODUCE WIND GUSTS TO 50 MPH ALONG WITH SMALL HAIL. DRIER AIR MOVING IN BEHIND THE FRONT WILL END THE THREAT OF THUNDERSTORMS LATER THIS EVENING. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SCATTERED THUNDERSTORMS ARE EXPECTED LATE SUNDAY THROUGH EARLY TUESDAY...AS A WEAK FRONT STALLS OVER LOWER MICHIGAN. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION SHOULD NOT BE NEEDED THIS AFTERNOON OR EVENING AS ANY SEVERE WEATHER SHOULD BE RATHER ISOLATED. JK
The NCL Michigan radar (KAPX), 96 km away, was scanning. The volume nearest the first event began at 19:04 UTC.
3 thunderstorm wind. Local standard time, as filed.
Numerous twelve to fourteen inch diameter trees were blown down in the city of Marion.
A report of up to two dozen ten to twelve inch diameter oak and elm trees being blown down was received from five miles east northeast of Temple along Bringold Avenue.
Several six to eight inch diameter tree limbs were blown down in the vicinity of the intersection of Shepherd and East Rosebush roads, about four miles east northeast of Rosebush.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2003Every state in 2003This day in weather historyWarnings in Michigan, July 2003
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: 5378591, 5378590, 5378589.