2 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 Detroit, MI wrote its last area forecast discussion before the first event at Jul 22, 2:00 PM EST, 2 hours 52 minutes earlier.
SOUTHEAST MICHIGAN AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 300 PM EDT MON JUL 22 2002 CAPES IN THE 4000-5000J/KG RANGE APPEAR TO HAVE PEAKED ACROSS THE CENTRAL PORTION OF THE CWA AND HAVE PUNCHED DOWN TO THE 3500J/KG RANGE...HIGHER DEW POINTS APPEAR TO HAVE MIXED OUT AS WELL...WITH DEW POINTS IN THE LOWER 70S CWA WIDE. BEST CONVERGENCE HAS ALSO SHIFTED TO THE SOUTH AND EASTERN PORTIONS OF THE CWA. WATER VAPOR IMAGE SHOWS A NARROW DRY SLOT OVER SOUTHERN LAKE MICHIGAN WHICH SHOULD ROTATE INTO SOUTHEAST LOWER AROUND 6 PM...THIS MAY PRODUCE A BRIEF INCREASE IN THE CONVECTION...THUS WITH CAPES STILL FAIRLY IMPRESSIVE ...A FEW OUTFLOW BOUNDARIES LEFT BEHIND AND PRE FRONTAL TROF MOVING INTO THE CWA...ANTICIPATE WATCH TO CONTINUE TO EXPIRATION. ANTICIPATE SKIES TO CLEAR FAIRLY QUICKLY OVERNIGHT...CLOUDS ASSOCIATED WITH SECONDARY TROF AXIS OVER THE WESTERN UPPER WILL STRUGGLE TO REACH SOUTHEAST LOWER AS TROF WEAKENS AND LOSS OF DIURNAL COMPONENT. MODELS IN GOOD AGREEMENT THROUGH 60 HOURS...PREFER THE SLIGHTLY COOLER AVN SOLUTION BASED ON UPSTREAM TEMPERATURES AND DEW POINTS. MODELS INDICATE 850 MB THETA-E RIDGE AXIS AND RIGHT REAR QUADRANT OF UPPER JET TO SLIP SOUTH AND EAST OF THE CWA BY 00Z. PRECIPITATION HAS ALSO DWINDLED ALONG THE COLD FRONT WHICH IS NOW PARALLEL TO THE MID LEVEL FLOW...AND SHOWING VERY LITTLE LOW LEVEL CONVERGENCE. THUS ANTICIPATE SHOWER THREAT TO END CWA WIDE BY MIDNIGHT. HIGH PRESSURE AND ASSOCIATED COOL AND DRY NORTH TO NORTHEAST FLOW TO AFFECT THE REGION FROM LATE TONIGHT THROUGH THURSDAY MORNING. WARM AIR ADVECTION AND A COUPLE OF WEAK UPPER WAVES ON THURSDAY MAY BE ENOUGH TO TRIGGER SOME SCATTERED CONVECTION...DEEPER MOISTURE ACROSS FAR NORTHERN PORTION OF CWA...THUS WILL GRADUATE POPS FROM NORTH TO SOUTH. .DTX...NONE. GSS
MIZ047>049-053>055-060>063-068>070-075-076-082-083-222300- HAZARDOUS WEATHER OUTLOOK FOR SOUTHEAST MICHIGAN NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 133 PM EDT MON JUL 22 2002 ...SEVERE THUNDERSTORM WATCH NUMBER 520 IN EFFECT UNTIL 700 PM FOR SOUTHEAST MICHIGAN... DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY. HAZARDS... A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 7 PM EDT FOR THE FOLLOWING COUNTIES...BAY...MIDLAND...SANILAC...SAGINAW...LAPEER...GENESEE... SHIAWASSEE...MACOMB...OAKLAND...LIVINGSTON...WASHTENAW...LENAWEE... HURON...TUSCOLA...ST. CLAIR...WAYNE AND MONROE. THIS INCLUDES THE CITIES OF BAY CITY...MIDLAND...SANDUSKY...SAGINAW...LAPEER...FLINT...OWOSSO... WARREN...PONTIAC...HOWELL...ANN ARBOR...ADRIAN...CARO...PORT HURON...DETROIT AND MONROE. NUMEROUS THUNDERSTORMS WILL CONTINUE THIS AFTERNOON AND EVENING. SOME OF THESE STORMS WILL PRODUCE WIND GUSTS UP TO 70 MPH...HAIL UP TO THREE QUARTERS OF AN INCH IN DIAMETER AND VERY HEAVY RAINFALL. DISCUSSION... A STRONG COLD FRONT WILL MOVE ACROSS SOUTHEAST MICHIGAN LATE THIS AFTERNOON THROUGH THIS EVENING. THUNDERSTORMS ARE STILL EXPECTED TO DEVELOP AHEAD OF THIS COLD FRONT EARLY THIS AFTERNOON. DUE TO THE UNSTABLE AIRMASS ALREADY IN PLACE ACROSS SOUTHEAST MICHIGAN...STORMS WILL HAVE THE POTENTIAL OF DEVELOPING ANYWHERE IN SOUTHEAST MICHIGAN EARLY THIS AFTERNOON. THE THREAT OF THUNDERSTORMS AND SEVERE WEATHER WILL END WITH THE PASSAGE OF THE COLD FRONT. THE FRONT SHOULD PASS THROUGH THE TRI CITIES AROUND 4 PM. FLINT AND THE THUMB SHOULD SEE THE PASSAGE OF THE FRONT AROUND 6 PM...WHILE THE DETROIT METRO ARE WILL SEE THE PASSAGE OF THE FRONT AROUND 8 PM. MOVEMENT OF THUNDERSTORMS IS EXPECTED TO BE NORTHEAST AT 30 MPH. SPOTTER ACTIVATION... SPOTTERS HAVE ALREADY BEEN ACTIVATED. OUTLOOK FOR TUESDAY AND WEDNESDAY... NO HAZARDOUS WEATHER IS EXPECTED TUESDAY OR WEDNESDAY. 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/DTX/ (ALL LOWER CASE) CONSIDINE
The Detroit radar (KDTX), 83 km away, was scanning. The volume nearest the first event began at 21:54 UTC.
2 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: 5303895, 5303896.