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 Jun 12, 2:27 AM EST, 2 hours 3 minutes earlier.
SOUTHEAST MICHIGAN AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 327 AM EDT TUE JUN 12 2001 A DOG-DAY KIND OF WEEK AHEAD. PERSISTENT LOW LEVEL SW FLOW... COMBINED WITH AN AMPLIFYING 500MB RIDGE...WL KEEP THINGS WARM AND STICKY. AS USUAL WHEN IT/S WARM AND STICKY IN JUNE...SVR CONVECTION IS A THREAT. EVAULATING TSRA CHANCE AND SEVERITY POSES THE MAIN FORECAST CHALLENGE THIS MORNING. WEAKENING SQUALL LINE BLASTING INTO THE CWA AS I TYPE. ZONES WL ACCOUNT FOR LINGERING PRECIP TO START THE MORNING. THEN WE WAIT TO SEE HOW FAST WE CLEAR. USUALLY THESE COMPLEXES CLEAR OUT FASTER THAN EXPECTED. GIVEN THE SUBSIDENCE EXPECTED BEHIND THE CONVECTIVELY- ENHANCED VORT...THE PRECIP AND LAYERED CLOUDS SHOULD WIPE OUT RAPIDLY AFTER SUNRISE...WITH PLENTIFUL SUNSHINE BY NOON. HEATING SHOULD STILL BE HELD BACK ENOUGH TO KEEP 90 DEGREES AT BAY...WITH MID TO UPPER 80S MORE LIKELY FOR MAX TEMPS. WITH MOISTENING WITH THE PASSING MCS...AND HIGHER MOISTURE LEVELS UPSTREAM...DEW POINTS WL BE AROUND 70 TODAY. FIDDLING WITH MESOETA PROGGED SOUNDINGS...ABOUT 4500J/KG LOOKS LIKE A REASONABLE TOP-END (87/71). THAT/S A WHOLE BUNCH. WIND FIELDS ARE QUITE WEAK...WITH <35KT UP THRU 350MB. BUT THERE IS SOME DIRECTIONAL SHEAR IN THE LOWER LEVELS...WITH HELICITIES 100-150M2/S2. AND WITH THAT MUCH CAPE...MUTICELL TSRA WITH SOME SERIOUS PUNCH ARE POSSIBLE. SHOULD BE PLENTY OF LOW LEVEL FOCUSING MECHANISMS...OUTFLOW BOUNDARIES FROM THIS MORNING...DIFFERENTIAL HEATING BOUDARIES AS DEBRIS GIVES WAY. IN ADDITION...SOME POTENTIAL FOR LAKE BREEZE BOUNDARIES WITH 950MB WINDS PROGGED TO BRIEFLY DROP TO 10-15KT. WL THUS CONTINUE WITH SCT POPS THIS AFTERNOON AND EVENING. WARM FRONT SHOULD LIFT A BIT FURTHER NORTH TONIGHT...INTO NRN LOWER MI/CENTRAL LK HURON. MCS ACTIVITY LOOKS TO REMAIN NORTH OF THIS BOUNDARY. SO AFTER LINGERING EVENING TSRA...SHOULD SEE A DRY OVERNIGHT. THE MUGGIES WL BE HERE TO STAY...WITH LOWS IN THE MID 60S TO AROUND 70. SOME FOG IS ALSO POSSIBLE. WEDNESDAY...WE ARE DEEP DEEP IN THE WARM SECTOR. WITH MINIMAL DEBRIS CLOUDS TO HINDER HEATING...MAX TEMPS AROUND 90 ARE VERY REACHABLE. THE ETA 2M PROGS DEW POINTS AS HIGH AS 77 IN THE AFTERNOON. THAT SEEMS A BIT MUCH...BUT DEWS SHOULD AGAIN BE AROUND 70/LOWER 70S. THIS PRODUCES UP TO 4000J/KG AGAIN (BASED ON 89/71). WITH ONLY A SMALL CAP AT BEST. BUT TWO THINGS STAND OUT AGAINST TSRA...A FAIRLY DRY AIRMASS ABOVE THE SURFACE LAYER...AND LACK OF ANY FORCING MECHANISMS WITH DUE SOUTH SURFACE WINDS EXPECTED (TOO STRONG FOR LAKE BREEZES). WL KEEP WEDNESDAY DRY...THOUGH NOT WITHOUT A HINT OF TREPIDATION. .DTX...NONE. ZOLTOWSKI
MIZ047>049-053>055-060>063-068>070-075-076-082-083-121200- SEVERE WEATHER OUTLOOK FOR SOUTHEAST MICHIGAN NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 1225 AM EDT TUE JUN 12 2001 ...SEVERE WEATHER POTENTIAL STATEMENT FOR SOUTHEAST MICHIGAN... DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY. A CLUSTER OF THUNDERSTORMS WILL MOVE THROUGH SOUTHEAST MICHIGAN DURING THE EARLY MORNING HOURS. THESE STORMS HAVE MAINTAINED THEIR STRENGTH AS THEY MOVED OVER LAKE MICHIGAN AND MAY REACH SEVERE LIMITS IN SOUTHEAST MICHIGAN EARLY THIS MORNING. SPOTTER ACTIVATION MAY BE NEEDED. LOCATIONS FIRST TO BE AFFECTED WILL BE FROM THE TRI CITIES DOWN TO FLINT BY 2 AM...THEN INTO THE THUMB AND SOUTH TOWARD PONTIAC BY 3 AM. THE STORMS WILL REACH THE DETROIT AREA AROUND 4 AM. A FEW OF THE STORMS MAY BE CAPABLE OF WIND GUSTS IN EXCESS OF 60 MPH...ALONG WITH HAIL AROUND 1 INCH IN DIAMETER...AS THEY MOVE EAST AT 60 MPH. STAY TUNED TO NOAA WEATHER RADIO...OR YOUR FAVORITE MEDIA OUTLET... FOR LATER WEATHER UPDATES. YOU CAN ALSO GET THE LATEST FORECAST INFORMATION FROM THE NATIONAL WEATHER SERVICE ON THE INTERNET. THE ADDRESS IS HTTP://WWW.CRH.NOAA.GOV/DTX/START.HTM (ALL LOWER CASE) BT
MIZ047>049-053>055-060>063-068>070-075-076-082-083-121200- SEVERE WEATHER OUTLOOK FOR SOUTHEAST MICHIGAN NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 330 AM EDT TUE JUN 12 2001 ...SEVERE WEATHER POTENTIAL STATEMENT FOR SOUTHEAST MICHIGAN... DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY. THUNDERSTORMS HAVE WEAKENED BELOW SEVERE LIMITS WHILE MOVING INTO SOUTHEAST MICHIGAN. MOST LOCATIONS WILL RECEIVE SOME RAIN DURING THE EARLY MORNING HOURS...BUT SEVERE WEATHER IS NO LONGER EXPECTED... AND SPOTTER ACTIVATION WILL NOT BE NEEDED. A FEW OF THE STRONGER THUNDERSTORMS WILL BE CAPABLE OF WIND GUSTS NEAR 40 MPH...AND PEA SIZE HAIL...AS THEY MOVE EAST AT 35 MPH. STAY TUNED TO NOAA WEATHER RADIO...OR YOUR FAVORITE MEDIA OUTLET... FOR LATER WEATHER UPDATES. YOU CAN ALSO GET THE LATEST FORECAST INFORMATION FROM THE NATIONAL WEATHER SERVICE ON THE INTERNET. THE ADDRESS IS HTTP://WWW.CRH.NOAA.GOV/DTX/START.HTM (ALL LOWER CASE) BT
The Detroit radar (KDTX), 58 km away, was scanning. The volume nearest the first event began at 09:31 UTC.
1 lightning. Local standard time, as filed.
Lightning struck Edmunson Middle School in Ypsilanti Township, igniting the roof of the gymnasium.
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, June 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: 5253099.