1 lightning, as filed by the National Weather Service.
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 Apr 6, 3:15 AM EST, 3 hours 36 minutes earlier.
SOUTHEAST MICHIGAN AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 415 AM EDT FRI APR 6 2001 88D AND IR SATELLITE LOOP SHOWS CONVECTION FIRING ALONG AND NORTH OF WARM FRONT CURRENT MOVING INTO THE NORTHERN PORTION OF THE CWA. GOOD CLOUD TOP COOLING NOTED FROM SAGINAW BAY TO LUDINGTON...THUS CONVECTION LIKELY TO HOLD TOGETHER AS IT MOVES INTO NORTHERN PORTION OF CWA. CONVECTION ALSO FUELED BY ADVANCING MOISTURE AXIS/THETA-E GRADIENT WITH SURFACE DEW POINTS CLIMBING INTO THE LOWER 50S OVER SOUTHWEST LOWER. MODELS IN GENERAL AGREEMENT THROUGH 60 HOURS. WARM FRONT AND WEAK UPPER WAVE TO MOVE NORTHEAST OF THE CWA SHORTLY AFTER 12Z...TAKING CONVECTION WITH IT. HOWEVER STILL A COUPLE OF CONCERNS FOR TODAY. CWA REMAINS IN A TIGHT 850 MB THETA-E GRADIENT AND POTENTIAL FOR SURFACE TEMPERATURES TO RISE INTO THE MID 60S AND EROSION OF INVERSION...INCREASING THE THREAT FOR SCATTERED AFTERNOON SHOWERS AND THUNDERSTORMS. HOWEVER CONCERNED WITH LOW CLOUDS OVER WISCONSIN EARLY THIS MORNING NEAR AND TO THE WEST OF THE SURFACE LOW. AS LOW MIGRATES EAST TODAY SOME OF THIS LOW CLOUD COULD WORK INTO THE CWA...CUTTING OFF TEMPERATURES AND THREAT FOR AFTERNOON SHOWERS. ANTICIPATE SUN TO ERODE SOME OF THIS CLOUD SO WILL OPT FOR MORE PESSIMISTIC SHOWER WORDING FOR THE AFTERNOON. THIS WILL HAVE TO BE WATCHED CLOSELY BY THE DAY SHIFT THOUGH. NVA AND UPPER RIDGE AXIS MIGRATING OVER THE CWA COULD MAKE FOR A QUITE EVENING AS WELL BEFORE THE SECOND WARM FRONT SURGES NORTH INTO THE CWA OVERNIGHT. MODELS AGREE IN BRING SECOND WARM FRONT INTO CWA AFTER MIDNIGHT AND INTO EARLY SATURDAY MORNING...AND WITH IT A REINFORCEMENT OF THE 850 MB THETA-E GRADIENT AND THUS POTENTIAL FOR SHOWERS AND THUNDERSTORMS. BEST UPPER SUPPORT REMAINS TO THE WEST THOUGH AS UPPER LOW TAKES ON NEGATIVE TILT...THUS WILL CONTINUE WITH LIKELY WORDING AS OPPOSED TO CATEGORICAL. SECOND WARM FRONT TO ROTATE NORTHEAST OF THE CWA SATURDAY MORNING AND ALLOWING DRY SLOTTING TO TAKE PLACE OVER THE CWA DURING THE AFTERNOON HOURS. MODELS FAIRLY AGGRESSIVE WITH THIS DRY SLOT AND IF THIS OCCURS SKIES SHOULD GO PARTLY CLOUDY IN THE AFTERNOON...ALLOWING TEMPERATURES TO CLIMB INTO THE LOWER 70S...INVERSION TO BREAK...AND CONVECTION TO FIRE. A 30 KT LOW LEVEL WIND FIELD WILL ALSO HAVE THE POTENTIAL TO MIX DOWN TO THE SURFACE. THUS SATURDAY AFTERNOON COULD BECOME WINDY WITH STRONG CONVECTIVE POTENTIAL...WET BULB ZERO AROUND 10K...TOTAL TOTALS AROUND 48 AND B+ APPROACHING 1000 J/KG. THETA-E GRADIENT MIGRATES EAST OF THE CWA RAPIDLY SATURDAY EVENING...AS WELL AS 850 MOISTURE AXIS. THIS SHOULD RESULT IN AT L EAST PARTIAL CLEARING OVERNIGHT. ONCE AGAIN WILL LEAN TOWARD WARMER MAV TEMPERATURES...ESPECIALLY ON SATURDAY WITH POTENTIAL FOR AFTERNOON SUN. .DTX...NONE. GSS
The Detroit radar (KDTX), 38 km away, was scanning. The volume nearest the first event began at 11:49 UTC.
1 lightning. Local standard time, as filed.
Lightning struck the chimney of a Brighton home, damaging moldings, drywall, and carpeting. A computer in the home also received electrical damage.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2001Every state in 2001This day in weather historyWarnings in Michigan, April 2001
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: 5241027.