1 hail, 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 May 17, 10:55 AM EST, 2 hours 20 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1155 AM EDT MON MAY 17 2004 .UPDATE... SCATTERED STRONG/SEVERE CONVECTION COULD GET GOING MUCH EARLIER THAN PREVIOUSLY THOUGHT...WELL AHEAD OF THE SURFACE COLD FRONT. SUFFICIENT INSTABILITY HAS ALREADY DEVELOPED OVER THE AREA WITH MSAS SHOWING LIFTED INDICES OF -5 AHEAD OF CONVECTION DRIFTING NE FROM NRN INDIANA. WATER VAPOR IMAGERY AND RUC DATA SHOWS NORTH-SOUTH ORIENTED LOBE OF VORTICITY ACROSS FAR ERN WI SOUTH THROUGH ILLINOIS...MOVING SLOWLY TO THE EAST. SPC IS MONITORING THE GRR CWFA FOR A WATCH IN THE NEXT HOUR OR SO...AHEAD OF THIS VORT LOBE. VAD WIND AND LAPS/RUC SOUNDINGS SHOW 0-3 KM HELICITY VALUES NEARING 150 M2/S2 AND INCREASING THROUGHOUT THE AFTERNOON. WINDS ARE UNIDIRECTIONAL BUT SPEEDS INCREASE W/ HEIGHT...CREATING STRAIGHT LINE HODOGRAPHS. WILL UPDATE THE HAZARDOUS WEATHER OUTLOOK FOR EARLIER POSSIBILITY OF SEVERE WEATHER. && .GRR...WATCHES/WARNINGS/ADVISORIES...NONE. && MEADE
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1213 PM EDT MON MAY 17 2004 MIZ037>040-043>046-050>052-056>059-064>067-071>074-181000- ALLEGAN-BARRY-CALHOUN-CLARE-CLINTON-EATON-GRATIOT-INGHAM-IONIA- ISABELLA-JACKSON-KALAMAZOO-KENT-LAKE-MASON-MECOSTA-MONTCALM-MUSKEGON- NEWAYGO-OCEANA-OSCEOLA-OTTAWA-VAN BUREN- 1213 PM EDT MON MAY 17 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...TODAY AND TONIGHT A SLIGHT RISK OF SEVERE THUNDERSTORMS EXISTS THIS AFTERNOON AND TONIGHT OVER ALL OF SOUTHWESTERN LOWER MICHIGAN. DAMAGING WINDS IN EXCESS OF 60 MPH AND HAIL TO 1 INCH ARE POSSIBLE WITH THESE STORMS. AN ISOLATED TORNADO IS ALSO POSSIBLE. AN UPPER LEVEL DISTURBANCE MOVING EAST FROM WISCONSIN AND ILLINOIS WILL CREATE SCATTERED STRONG OR SEVERE THUNDERSTORMS THIS AFTERNOON. A COLD FRONT EXTENDING FROM WESTERN UPPER MICHIGAN SOUTHWEST TO IOWA WILL MOVE SOUTHEAST INTO THE STATE TONIGHT...CREATING ADDITIONAL THUNDERSTORMS. STORM MOVEMENT WILL BE NORTHEAST AT AROUND 35 MPH THIS AFTERNOON. TONIGHT THE STORM MOTION WILL BE EAST AT AROUND 40 MPH. SOME OF THESE STORMS WILL CONTAIN VERY HEAVY RAIN AND SOME URBAN AND SMALL STREAM FLOODING WILL BE POSSIBLE. THE HEAVIEST RAINFALL SHOULD OCCUR SOUTH OF I96. .DAYS TWO THROUGH SEVEN... ANY SCATTERED THUNDERSTORMS SHOULD END TUESDAY MORNING. ON AND OFF THUNDERSTORM CHANCES WILL CONTINUE THROUGH MUCH OF THE WEEK. STORMS WILL BE POSSIBLE WEDNESDAY NIGHT INTO EARLY THURSDAY...THEN AGAIN ON FRIDAY...WITH ANOTHER ROUND OF STORMS POSSIBLE SATURDAY NIGHT INTO SUNDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS EVENING AND OVERNIGHT. STAY TUNED TO NOAA WEATHER RADIO...OR LOCAL MEDIA OUTLETS...FOR THE LATEST FORECAST INFORMATION FROM THE NATIONAL WEATHER SERVICE. YOU CAN ALSO OBTAIN THE LATEST FORECAST ON THE NATIONAL WEATHER SERVICE WEB SITE HTTP://WWW.CRH.NOAA.GOV/GRR/ (ALL LOWER CASE) JK MEADE
MIZ044>046-051-052-056>059-064>067-071>074-180000-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
113 PM EDT MON MAY 17 2004
THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH
FOR PORTIONS OF THE SOUTHWEST QUARTER OF LOWER MICHIGAN EFFECTIVE
UNTIL 800 PM EDT MONDAY EVENING. THIS WATCH INCLUDES THE FOLLOWING
COUNTIES
IN CENTRAL MICHIGAN
ISABELLA...MECOSTA...MONTCALM AND GRATIOT
IN WEST CENTRAL MICHIGAN
NEWAYGO
IN SOUTHWEST MICHIGAN
KENT...ALLEGAN...BARRY...KALAMAZOO...VAN BUREN AND OTTAWA
IN SOUTH CENTRAL MICHIGAN
IONIA...CLINTON...INGHAM...EATON...JACKSON AND CALHOUN
A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR
THE DEVELOPMENT OF SEVERE THUNDERSTORMS IN AND NEAR THE WATCH AREA.
REMEMBER...SEVERE THUNDERSTORMS PRODUCE WIND GUSTS IN EXCESS OF 58
MPH AND/OR HAIL THREE-QUARTERS OF AN INCH IN DIAMETER OR GREATER. IF
YOU LIVE IN OR NEAR THE WATCH AREA YOU SHOULD REMAIN ALERT TO RAPIDLY
CHANGING WEATHER CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO OR THE
LOCAL NEWS OUTLETS FOR THE LATEST UPDATES AND POSSIBLE WARNINGS.
MEADEMIZ044>046-051-052-056>059-064>067-071>074-180000-
SPECIAL WEATHER STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
113 PM EDT MON MAY 17 2004
CORRECTED TO INCLUDE THE ADJACENT COASTAL WATERS OF LAKE MICHIGAN
THE STORM PREDICTION CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH
FOR PORTIONS OF THE SOUTHWEST QUARTER OF LOWER MICHIGAN EFFECTIVE
UNTIL 800 PM EDT MONDAY EVENING. THIS WATCH INCLUDES THE FOLLOWING
COUNTIES
IN CENTRAL MICHIGAN
ISABELLA...MECOSTA...MONTCALM AND GRATIOT
IN WEST CENTRAL MICHIGAN
NEWAYGO
IN SOUTHWEST MICHIGAN
KENT...ALLEGAN...BARRY...KALAMAZOO...VAN BUREN AND OTTAWA
IN SOUTH CENTRAL MICHIGAN
IONIA...CLINTON...INGHAM...EATON...JACKSON AND CALHOUN
THIS WATCH INCLUDES THE ADJOINING COASTAL WATERS OF AFFECTED
LAKESHORE COUNTIES.
A SEVERE THUNDERSTORM WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR
THE DEVELOPMENT OF SEVERE THUNDERSTORMS IN AND NEAR THE WATCH AREA.
REMEMBER...SEVERE THUNDERSTORMS PRODUCE WIND GUSTS IN EXCESS OF 58
MPH AND/OR HAIL THREE-QUARTERS OF AN INCH IN DIAMETER OR GREATER. IF
YOU LIVE IN OR NEAR THE WATCH AREA YOU SHOULD REMAIN ALERT TO RAPIDLY
CHANGING WEATHER CONDITIONS. STAY TUNED TO NOAA WEATHER RADIO OR THE
LOCAL NEWS OUTLETS FOR THE LATEST UPDATES AND POSSIBLE WARNINGS.
MEADEThe Detroit radar (KDTX), 88 km away, was scanning. The volume nearest the first event began at 18:15 UTC.
1 hail. Local standard time, as filed.
The broadcast media reported one and three quarters inch diameter hail near I-127 in Rives Junction and a trained spotter reported one and three quarters inch diameter hail in Munith.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2004Every state in 2004This day in weather historyWarnings in Michigan, May 2004
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: 5402105.