3 marine 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 Gaylord, MI wrote its last area forecast discussion before the first event at Aug 4, 1:35 AM EST, 7 hours 25 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GAYLORD MI 235 AM EDT SUN AUG 4 2002 FORECAST CONCERNS ARE POPS AND HEAVY RAIN POTENTIAL TODAY AND THIS EVENING. SHORTWAVE AND ASSOCIATED SURFACE COOL FRONT WILL PUSH THROUGH THE REGION THIS AFTERNOON/EVENING. AHEAD OF THESE SYSTEMS...MCS IS ONGOING W/SW OF THE FORECAST AREA. AS DEEP LAYER ASCENT/ASSOCIATED MOISTENING SPREAD INTO THE FORECAST AREA THIS MORNING...CONVECTION WILL SPREAD EAST/SOUTHEAST ACROSS THE REGION...AND MOST LOCATIONS WILL RECEIVE MEASURABLE RAINFALL...WILL RAISE POPS TO CATEGORICAL ACROSS THE SOUTHERN 1/2 OF THE FORECAST AREA TODAY. HOWEVER... QUESTION IS WHETHER UPSTREAM MCS/ASSOCIATED HEAVY PRECIPITATION WILL FOLLOW AXIS OF DEEP LAYER ASCENT AND SPREAD INTO NORTHERN LOWER MICHIGAN PER THE 0Z ETA SCENARIO...OR WHETHER CORE OF INTENSE CONVECTION/HEAVY RAIN WILL CONTINUE TO PROPAGATE SE...TOWARD VERY UNSTABLE BOUNDARY LAYER AIR...WITH THE HEAVIEST RAIN JUST BRUSHING OR EVEN PASSING SOUTH OF EXTREME SOUTHERN COUNTIES OF THE FORECAST AREA. THUS FAR...THE NGM SCENARIO APPEARS TO HAVE THE BEST HANDLE ON UPSTREAM TRENDS...ASIDE FROM INDIVIDUAL BOWING SEGMENTS PUSHING TOWARD THE EAST COLDEST CLOUD TOPS/FOCUS OF LIGHTNING ARE GENERALLY MIGRATING TOWARD THE ESE/SE...WHILE CLOUD TOPS ARE WARMING AND AREA RADARS SUGGEST PRECIP IS DECREASING IN COVERAGE UPSTREAM OF NORTHERN COUNTIES OF THE FORECAST AREA. THUS...THE BEST SHOT FOR HEAVY RAIN...GIVEN PLUME OF PRECIPITABLE WATER ABOVE 2 INCHES/850 MB DEWPOINTS ABOVE 15C/700 MB DEWPOINTS AROUND 5C/POTENTIAL FOR W TO EAST CELL TRAINING AHEAD OF SLOW MOVING FRONT IN ZONAL FLOW REGIME...APPEARS TO BE AIMED INTO THE SOUTHERN 1/2 OF THE FORECAST AREA...ESPECIALLY ALONG AND SOUTH OF M-72. GIVEN 3-6 HOUR FLASH FLOOD GUIDANCE OF AROUND 3-4 INCHES ACROSS THE SOUTH...AND GIVEN POSSIBILITY THAT HEAVIEST RAIN MAY YET BYPASS SOUTHERN COUNTIES... WILL MENTION POSSIBLE HEAVY RAINFALL...BUT DO NOT PLAN TO ISSUE ANY WATCHES. THIS SCENARIO MAY NEED FURTHER ADJUSTMENT LATER THIS MORNING...AS DAY SHIFT MAY BE ABLE TO DROP MENTION OF HEAVY RAIN IF DYNAMIC SUPPORT FAILS TO REGENERATE SIGNIFICANT CONVECTION OVER REGION. WARM FRONT...STILL POISED WELL S/SW OF THE FORECAST AREA...WILL STRUGGLE TO PUSH INTO SOUTHERN COUNTIES BRIEFLY TODAY...WITH NORTHWARD PROGRESS SLOWED BY RAIN COOLED AIR AND PASSAGE OF SHORTWAVE/ARRIVAL OF COOL FRONT THIS AFTERNOON/EVENING. 0Z ETA APPEARS TO BE A BIT OVERDONE WITH SURFACE BASED INSTABILITY ACROSS THE S/SE...EXPECT CAPES TO STRUGGLE TO REACH 1000 J/KG...WITH LIS 0 TO -3...SO SEVERE POTENTIAL WILL BE LIMITED. HOWEVER...WILL NEED TO MONITOR PROGRESS OF WELL DEVELOPED BOWS IN WI...AS THESE MAY IMPACT SW COUNTIES WITH GUSTY WINDS LATER THIS MORNING. NORTH OF WARM FRONT...CONVECTION WILL REMAIN ELEVATED...WITH FREEZING LEVELS/WET BULB ZERO LEVELS WELL OVER 14 KFT VIRTUALLY ELIMINATING THREAT FOR LARGE HAIL. THIS EVENING...WILL CONTINUE EVENING POPS ACROSS THE SOUTH...WITH LIKELY POPS EARLY ACROSS THE SE. THEN...FORECAST THROUGH TUESDAY WILL BE DRY WITH BELOW NORMAL TEMPS...LOWERED TEMPS A BIT MONDAY AND TUESDAY FROM PREVIOUS FORECAST...AS COOL CANADIAN SURFACE HIGH SPREADS ACROSS THE LAKES AND LOW LEVEL THERMAL EXPANDS TOWARD THE REGION (850 MB TEMPS ACROSS THE NORTH +4C TO +6C BY 12Z TUESDAY). ALSO...LATER CONCERNS INCLUDE EXTENT OF MID/HIGH LEVEL CLOUDS THAT WILL PUSH THROUGH THE REGION LATE TONIGHT/MONDAY...AND POSSIBLE IMPACT OF LOW LEVEL MOISTURE/CLOUDS UNDER THERMAL TROUGH THAT WILL PUSH CLOSE TO THE EASTERN UP MONDAY PM/NIGHT. NO CHANGES TO WEDNESDAY THROUGH SATURDAY FORECAST. APX...NONE. ROWLEY
The NCL Michigan radar (KAPX), 109 km away, was scanning. The volume nearest the first event began at 13:59 UTC.
3 marine thunderstorm wind. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Lake Huron in 2002Every state in 2002This day in weather history
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: 5316686, 5316687, 5316688.