1 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 Aug 23, 2:55 PM EST, 2 hours 40 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GRAND RAPIDS MI 355 PM EDT MON AUG 23 2004 .SHORT TERM... SCATTERED CONVECTION HAS DEVELOPED THIS AFTERNOON ALONG AND SOUTH OF INTERSTATE 96 WHERE CAPES ARE CURRENTLY 1500-2500 J/KG. THE SURFACE BOUNDARY HAS STALLED NEAR I-94 AND THIS IS WHERE THE BEST SURFACE CONVERGENCE IS PRESENT. WILL CARRY SCATTERED SHOWER/TSTMS THIS EVENING IN THE SRN CWFA BEFORE INSTABILITY DIMINISHES. OTHERWISE WELL PROBABLY SEE A FAIR AMOUNT OF LOW LEVEL CLOUDINESS AROUND SINCE LOW LEVEL MOISTURE PROGS SHOW 80-100 PERCENT RELATIVE HUMIDITY AT 925 MB AND BELOW. HAVE LIMITED THE MENTION OF PATCHY FOG TONIGHT TO THE SRN PORTION OF THE CWFA SINCE EAST WINDS AROUND THE SURFACE HIGH TO THE NORTH ARE PROGGED TO BE AROUND 10-15 MPH IN THE CNTRL AND NRN AREAS OF THE CWFA. ON TUESDAY LOW LEVEL WINDS GRADUALLY TURN TO THE SOUTHEAST THEN SOUTH AND HIGHER DEWPOINT AIR CREEPS BACK NORTH. CAPES CLIMB TOWARD 2000 J/KG IN THE AFTERNOON...AND THE SHORTWAVE CURRENTLY PRODUCING ALL OF THE CONVECTION OVER MISSOURI WILL BE APPROACHING LATE IN THE DAY FROM THE W/SW. WILL THEREFORE MAINTAIN THE CHANCE FOR AFTERNOON SHOWERS AND STORMS...HIGHEST IN THE WEST. HAVE OPTED TO RAISE POPS TO LIKELY ON TUESDAY NIGHT SINCE THE AFOREMENTIONED SHORTWAVE WILL BE PASSING THROUGH THE REGION. HIGH PRECIPITABLE WATER AIR OF NEAR 1.75 INCHES COULD RESULT IN SOME LOCALLY HEAVY DOWNPOURS. FOR WEDNESDAY AND THURSDAY THE PATTERN IS ESSENTIALLY UNCHANGED. TIMING/LOCATION/STRENGTH OF SHORTWAVES APPROACHING FROM THE SOUTHWEST OUT OF THE WRN TROUGH IS VERY HARD TO PIN POINT AT THIS POINT. PLENTY OF MOISTURE AND INSTABILITY WILL BE AROUND WITH DEW POINTS NEAR 70 LINGERING OVER THE AREA...SO HARD TO RULE OUT CONVECTION AT ANY TIME. COULD SEE SOME AREAS OF FOG DEVELOP AT NIGHT GIVEN THE SOUPY AIR MASS THAT WILL BE PRESENT. NOT MUCH OF A SEVERE WX THREAT IS ANTICIPATED IN THIS PATTERN GIVEN THE LIGHT WIND FIELDS ALOFT AND HIGH FREEZING LEVELS...BUT A FEW STRONG PULSE CELLS ARE NOT OUT OF THE QUESTION. .LONG TERM... MEDIUM RANGE GUIDANCE CONTINUES TO INDICATE THE EVOLUTION OF AN UPPER LEVEL PATTERN FEATURING A H5 TROF WEST AND UPSTREAM RIDGE OVER THE EASTERN U.S. THIS WILL KEEP OUR AREA WARM AND HUMID IN S TO SW FLOW THURSDAY NIGHT THROUGH FRIDAY NIGHT. SEVERAL SHORTWAVES WILL EJECT NE OUT OF THE BASE OF THAT H5 TROUGH AND WILL COMBINE WITH THE INSTABILITY GENERATED IN THE WARM AND HUMID AIRMASS TO TRIGGER SCATTERED TSTORMS. OUR BEST CHANCE FOR CONVECTION STILL LOOKS LIKE IT WILL COME SATURDAY WITH THE APPROACH OF THE MAIN COLD FRONT. TIMING ISSUES HAVE DEVELOPED IN THIS REGARD. THE ECMWF IS ALREADY BRINGING THE FRONT THROUGH MOST OF OUR CWA BY 12Z SAT, WHICH IS FASTER THAN ITS PREVIOUS RUN. MEANWHILE THE GFS WOULDNT BRING IT IN UNTIL LATE SATURDAY, AND THE GLOBAL CANADIAN IS SLOWER THAN THAT. AT THIS POINT WE LIKE THE GFS TIMING THE BEST, WHICH IS ALSO CONSISTENT WITH WHAT WE THOUGHT YESTERDAY. IT WILL TURN COOLER AND LESS HUMID BEHIND THAT FRONT FOR SUNDAY AND EARLY NEXT WEEK AND THE H5 PATTERN WILL BECOME ZONAL BY THEN TOO. && .GRR WATCHES/WARNINGS/ADVISORIES...NONE. MEADE
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GRAND RAPIDS MI 1159 AM EDT MON AUG 23 2004 LMZ843>849-MIZ037>040-043>046-050>052-056>059-064>067-071>074-241004- ALLEGAN MI-BARRY MI-CALHOUN MI-CLARE MI-CLINTON MI-EATON MI- GRATIOT MI-INGHAM MI-IONIA MI-ISABELLA MI-JACKSON MI-KALAMAZOO MI- KENT MI-LAKE MI-MASON MI-MECOSTA MI-MONTCALM MI-MUSKEGON MI- NEWAYGO MI-OCEANA MI-OSCEOLA MI-OTTAWA MI-VAN BUREN MI- 1159 AM EDT MON AUG 23 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST LOWER MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT THERE IS A CHANCE FOR THUNDERSTORMS THIS AFTERNOON ALONG AND SOUTH OF INTERSTATE 96...BUT SEVERE WEATHER IS NOT EXPECTED. ANY STORMS THAT DO FORM WILL MOVE TO THE EAST SOUTHEAST AT 25 MPH...AND MAY CONTAIN DANGEROUS CLOUD TO GROUND LIGHTNING STRIKES AND LOCALLY HEAVY DOWNPOURS. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY THERE IS A CHANCE FOR THUNDERSTORMS THURSDAY THROUGH SATURDAY NIGHT. THE BEST CHANCE FOR THUNDERSTORMS WILL BE WITH A COLD FRONTAL PASSAGE SATURDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. MWH BDM
The Grand Rapids radar (KGRR), 59 km away, was scanning. The volume nearest the first event began at 22:33 UTC.
1 thunderstorm wind. Local standard time, as filed.
Area law enforcement in Richland reported that many trees and wires were blown down.
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, August 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: 5419527.