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 Detroit, MI wrote its last area forecast discussion before the first event at Sep 23, 3:44 PM EST, 2 hours 21 minutes earlier.
AREA FORECAST DISCUSSION...CORRECTED NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 444 PM EDT SAT SEP 23 2006 .SHORT TERM...TONIGHT AND SUNDAY BROAD SURFACE LOW IS LOCATED OVER WISCONSIN AND NORTHERN ILLINOIS WITH SEVERAL TROUGHS EXTENDING OUT FROM THE CENTER. THIS LOW IS BECOMING OCCLUDED WITH THE REAL WARM FRONT LIFTING NORTH INTO KENTUCKY AND A COLD FRONT TRAILING INTO ARKANSAS. MEANWHILE SURFACE PRESSURE CONTINUES TO FALL ACROSS NORTHERN ILLINOIS WITH THE OCCLUDED LOW STILL EXPECTED TO TRACK ACROSS LOWER MICHIGAN TOWARDS SOUTHERN LAKE HURON THIS EVENING. THE UPPER LEVEL TROUGH IS SWINGING EASTWARD WITH A STRONG JET OVERHEAD. ALTHOUGH BETTER MOISTURE TRANSPORT CONTINUES TO MOVE NORTHEAST UP THE OHIO RIVER VALLEY...ENOUGH LOW LEVEL MOISTURE IS STILL PRESENT FOR THUNDERSTORM DEVELOPMENT ACROSS LOWER MICHIGAN. CONVERGENCE WILL BE PRESENT ALONG THE SURFACE BOUNDARY WITH LARGE SCALE LIFT INCREASING AS A HEALTHY DRY SLOT APPROACHES. LOW LEVEL THETA-E RIDGE WILL ADVECT INTO OUR SOUTHERN COUPLE ROWS OF COUNTIES AND WE WILL STILL SEE STRONG DYNAMICS THIS EVENING WITH A COUPLED JET OVERHEAD. SEVERE WEATHER POTENTIAL IS ON THE THE DECLINE WITH ABUNDANT CLOUD COVER AND CHANCES INCREASING FOR CONVECTION TO REMAIN ELEVATED. SPC MESO ANALYSIS STILL SHOWS ABOUT 500 J/KG OF 100MB MLCAPE WITH LITTLE CIN AHEAD OF THIS BOUNDARY. CANNOT RULE OUT DEVELOPMENT OF AN ISOLATED SEVERE STORM OR TWO YET...ESPECIALLY SOUTH OF I-69. ALTHOUGH THE LACK OF SURFACE BASED INSTABILITY IS CAUSING THE SEVERE THREAT TO DECREASE...SHEAR IS STILL STRONG ENOUGH TO SUPPORT SUPERCELLS WITH LOW LEVEL FLOW BACKING AS THE BOUNDARY APPROACHES. IF STORMS ARE ABLE TO BECOME SURFACE BASED THAN STRONG WINDS OR A TORNADO REMAIN A CONCERN. THUNDERSTORMS THIS EVENING WILL ALSO BE CAPABLE OF PRODUCING BRIEF HEAVY RAIN WITH HIGH RAINFALL RATES AND MARGINALLY SEVERE SIZE HAIL. PW VALUES WILL APPROACH 1.80 INCHES ACROSS OUR SOUTHERN COUNTIES BUT STORM MOTION IS EXPECTED TO GENERALLY BE ENOUGH TO PREVENT ANYTHING MORE THAN JUST SOME LOCALLY HEAVY RAIN. ONE AREA TO WATCH FOR SOME MINOR STREET FLOODING WILL BE ON THE NORTH SIDE OF THE LOW(NORTH OF I-69) WHERE A DEFORMATION AXIS MAY CAUSE A HEAVIER BAND OF RAIN TO SET UP. A COLD FRONT WILL MOVE THROUGH THE AREA ON THE BACK SIDE OF THE LOW LATE TONIGHT INTO TOMORROW. COLD AIR ADVECTION WILL SPREAD OVER THE AREA WITH HIGHS ON SUNDAY ONLY REACHING THE LOW 60S NORTH TO MID 60S SOUTH. THE COMBINATION OF WRAP AROUND MOISTURE AND STEEP LOW LEVEL LAPSE RATES WILL ALLOW SCATTERED SHOWERS TO DEVELOP FROM LATE MORNING THROUGH THE AFTERNOON. && .LONG TERM...SUNDAY NIGHT THROUGH SATURDAY SUNDAY NIGHT AND MONDAY... 12Z NAM/GFS/NGM AND WRFHEMI SHOW WEAK SURFACE RIDGE BUILDING IN SUNDAY NIGHT TO REPLACE RESIDUAL WEAKLY CYCLONIC FLOW...WITH GFS/WRFHEMI STILL INDICATING WEAK TROUGH PIVOTING DOWN INTO NORTHERN PART OF FORECAST AREA MONDAY. MEANWHILE AT 500 MB...A BROAD TROUGH WITH WEAK PVA/DIFFERENTIAL PVA SWINGING THROUGH SUNDAY NIGHT...THEN NORTHWEST FLOW BEHIND THE TROUGH FOR MONDAY. WEAK 850 TO 500 MB LAYER MOISTURE SEEN AS PER MODEL CONSENSUS FOR A WHILE SUNDAY NIGHT...THEN PRIMARILY GFS SHOWS MOISTURE INCREASING NORTH AGAIN MONDAY AFTERNOON. 925 MB RELATIVE HUMIDITY...BY CONTRAST...STAYS MOSTLY ABOVE 70 PERCENT. LITTLE TO NO LOW TO MID LEVEL OMEGA ASCENT THROUGH MONDAY...WHILE 850 TO 500 MB QVECTOR CONVERGENCE IS SLIGHT AT BEST AND SURFACE WIND CONVERGENCE EXPECTED LITTLE AT THE MOST. 295K ISENTROPIC ASCENT ALSO SLIGHT AND MAINLY AS PER GFS. GFS ALSO SHOWS A BIT OF 250 MB DIVERGENCE/850 MB CONVERGENCE COUPLING SUNDAY NIGHT. AM RETAINING THE SLIGHT CHANCE MENTION OF SHOWERS ACROSS THE AREA SUNDAY NIGHT...BUT A LITTLE HIGHER POPS ACROSS LAKE HURON AS 850 MB TEMPERATURES DIP INTO SINGLE DIGITS CELSIUS TO ALSO PROVIDE FAVORABLE ENOUGH DELTA TS FOR LAKE EFFECT/ENHANCED SHOWER MENTION THROUGH MONDAY OVER THE LAKE...IN OFFSHORE FLOW. AM KEEPING THE DRY FORECAST OVER LAND MONDAY EXCEPT OVER EASTERN THUMB COUNTIES WHICH COULD GET CLIPPED MAINLY BY EFFECTS OF WEAK TROUGH. AFTER MONDAY... MODEL CONSENSUS STILL PORTRAYS 500 MB SHORTWAVE TROUGH RIDING THE NORTHWEST FLOW AND CLIPPING THE GREAT LAKES REGION MONDAY NIGHT. MAIN MID LEVEL FEATURE...THOUGH...CONTINUES TO BE A LATER SHORTWAVE IN NORTHWEST FLOW DIVING SOUTHEAST TOWARD THE LAKES REGION AND STRONGLY AMPLIFYING DURING THE MID TO LATE WEEK PERIOD. REINFORCEMENT OF THIS TROUGH EXPECTED THROUGH END OF WORK WEEK AND POSSIBLY INTO THE EARLY WEEKEND BY JET SEGMENT IMPULSES STREAMING SOUTHEAST ON BACK SIDE OF THIS TROUGH. AT THE SURFACE...MOST OVERNIGHT MODELS BROUGHT A WEAK SURFACE TROUGH THROUGH SOUTHEAST MI MONDAY NIGHT...PARTICULARLY THE MORE ROBUST GFS. THE 12Z GFS PRETTY MUCH CONTINUES THIS IDEA...THOUGH THE 12Z NAM CONTINUES ITS MUCH MINIMIZED SURFACE TROUGH PORTRAYAL. WITH GOOD GFS CONTINUITY...AND ITS GENERALLY SUPERIOR SYNOPTIC FEATURE PORTRAYAL OF LATE PLUS ENHANCED BAND OF DEEPER MOISTURE MOVING THROUGH MONDAY NIGHT...AM INTRODUCING SLIGHT CHANCE OF MONDAY NIGHT SHOWERS OVER THE EASTERN THUMB COUNTIES. OTHERWISE AT THE SURFACE...GOOD MODEL CONSENSUS TOWARD WEAK RIDGING BY TUESDAY...WITH RIDGE RECEDING EAST BY WEDNESDAY AS STRONG COLD FRONT APPROACHES. QUITE A BIT OF TIMING VARIATION AMONG MODELS IN PROGRESSION OF THIS FRONT ACROSS THE AREA...THOUGH. THE ECMWF AND GLOBAL AT 00Z TRENDED FASTER THAN OVERNIGHT GFS RUNS...WHICH RUNS SLOWED MOVEMENT DOWN COMPARED TO YESTERDAY GIVING CLOSER TO THURSDAY FRONTAL CLEARANCE FROM SOUTHEAST MI. THE 12Z GFS CONTINUES THIS TREND...LARGELY SUPPORTED BY THE 06Z DGEX. THOUGH MODELS GENERALLY SUPPORT SOME FASHION OF CYCLOGENESIS ON THIS FRONT OVER THE EASTERN LAKES REGION THURSDAY NIGHT AND FRIDAY...CONFIDENCE OF THE STRENGTH OF THIS FEATURE IS LOW AND PREFER FOR NOW TO KEEP FORECAST DRY AFTER THURSDAY. AT ANY RATE...MODEL CONSENSUS AND NCEP ENSEMBLE MEANS SUPPORT WEAK RIDGING FINALLY BY SATURDAY. && .PREV DISCUSSION...ISSUED 109 PM EDT SAT SEP 23 2006 AVIATION... THUNDERSTORMS ARE EXPECTED TO HAVE AN IMPACT ON AVIATION OPERATIONS AT ALL TERMINALS OVER THE NEXT 12 HOURS. LOW CEILINGS WILL CONTINUE TO PREVAIL...DOING NO BETTER THAN MVFR THROUGH THIS TAF PERIOD. CONCERNING VISIBILITIES...A BRIEF PERIOD OF IMPROVEMENT WILL BE POSSIBLE THIS AFTERNOON...PRIOR TO THE ONSET OF WIDESPREAD CONVECTIVE ACTIVITY. THEREAFTER...LOW VISIBILITIES WILL PREVAIL...FLUCTUATING BETWEEN IFR AND MVFR...AND AS LOW AS LIFR IN THE VICINITY OF HEAVY DOWNPOURS IN THUNDERSTORMS. THE MAIN CHALLENGE IS TIMING BOTH THE ONSET AND DURATION OF THUNDERSTORM ACTIVITY. CANNOT COMPLETELY RULE OUT A HEAVY SHOWER OR ISOLATED THUNDERSTORM OVER THE NEXT COUPLE OF HOURS...BUT MAIN ACTIVITY WILL ARRIVE LATER IN THE DAY...SO SEE NO REASON TO DEVIATE FROM THE PREVIOUS TIMING OF THUNDERSTORM ACTIVITY...WITH THE MOST LIKELY PERIOD COINCIDING WITH THE MAXIMUM HEATING OF THE DAY. THIS TIMING WILL ALSO COINCIDE WITH MAX SURFACE CONVERGENCE AND MAX UPPER LEVEL DIVERGENCE WHICH WILL BE QUITE FAVORABLE FOR THUNDERSTORM ACTIVITY ACROSS SOUTHEAST LOWER MICHIGAN DURING THE LATE AFTERNOON AND EARLY EVENING HOURS. FOLLOWING THE THUNDERSTORM ACTIVITY...LIGHT SHOWERS AND/OR DRIZZLE/FOG WILL BE POSSIBLE THROUGH THE EVENING HOURS...THUS WILL MAINTAIN LOW CEILINGS/VISIBILITIES. COOLER AIR WILL ALSO BEGIN TO FILTER INTO THE REGION...FURTHER EXTENDING THE PERIOD OF LOW CEILINGS. VISIBILITIES SHOULD IMPROVE TO VFR SHORTLY AFTER SUNRISE ON SUNDAY. && .DTX WATCHES/WARNINGS/ADVISORIES... MI...NONE. LAKE HURON...NONE. LAKE ST CLAIR...NONE. MI WATERS OF LAKE ERIE...NONE. && SHORT TERM...KEK LONG TERM....DWD AVIATION...SHULER YOU CAN OBTAIN YOUR LATEST NATIONAL WEATHER SERVICE FORECASTS ONLINE AT WWW.WEATHER.GOV/DETROIT (ALL LOWER CASE).
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 440 PM EDT SAT SEP 23 2006 MIZ047>049-053>055-060>063-068>070-075-076-082-083-241000- MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER- ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE- 440 PM EDT SAT SEP 23 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR ALL OF SOUTHEAST MICHIGAN. .DAY ONE...TONIGHT THUNDERSTORMS ARE LIKELY TONIGHT...AND WILL BE MOST NUMEROUS AFTER SUNSET. THERE IS A SLIGHT CHANCE OF SEVERE WEATHER WITH THESE THUNDERSTORMS. THE BEST CHANCE FOR SEEING SEVERE WEATHER WILL BE PRIOR TO MIDNIGHT. THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 60 MPH AND HAIL TO ONE INCH IN DIAMETER. ISOLATED TORNADOES WILL ALSO BE POSSIBLE. THUNDERSTORMS WILL GENERALLY MOVE TO THE NORTHEAST AT 30 MPH. LOW PRESSURE WILL TRACK NORTHEAST ACROSS THE AREA EARLY TONIGHT. DESPITE RATHER MODEST INSTABILITY...THE STRONG WINDS IN THE MID AND UPPER LEVELS OF THE ATMOSPHERE WILL PROVIDE THE POTENTIAL FOR STRONG TO SEVERE THUNDERSTORMS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THERE IS A CHANCE OF THUNDERSTORMS WEDNESDAY AFTERNOON AND EARLY WEDNESDAY NIGHT IN ADVANCE OF AN APPROACHING COLD FRONT. .SPOTTER INFORMATION STATEMENT... DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY. SPOTTER ACTIVATION MAY BE NEEDED TONIGHT. LCZ422-423-460-LEZ444-LHZ421-422-441>443-462>464-241000- ST. CLAIR RIVER-DETROIT RIVER-LAKE ST. CLAIR- MICHIGAN WATERS OF LAKE ERIE-OUTER SAGINAW BAY-INNER SAGINAW BAY- PORT AUSTIN TO HARBOR BEACH MI-HARBOR BEACH TO PORT SANILAC MI- PORT SANILAC TO PORT HURON MI- LAKE HURON OFFSHORE BEYOND 5 NM FROM PORT AUSTIN TO HARBOR BEACH MI- LAKE HURON OFFSHORE BEYOND 5 NM FROM HARBOR BEACH TO PORT SANILAC MI- LAKE HURON OFFSHORE BEYOND 5 NM FROM PORT SANILAC TO PORT HURON MI- 440 PM EDT SAT SEP 23 2006 THIS HAZARDOUS WEATHER OUTLOOK IS FOR LAKE ST CLAIR...THE MICHIGAN WATERS OF LAKE ERIE AND LAKE HURON. .DAY ONE...TONIGHT THUNDERSTORMS ARE LIKELY TONIGHT...AND WILL BE MOST NUMEROUS AFTER SUNSET. THERE IS A SLIGHT CHANCE OF SEVERE WEATHER WITH THESE THUNDERSTORMS. THE BEST CHANCE FOR SEEING SEVERE WEATHER WILL BE PRIOR TO MIDNIGHT. THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 KNOTS AND HAIL TO ONE INCH IN DIAMETER. ISOLATED TORNADIC WATERSPOUTS WILL ALSO BE POSSIBLE. THUNDERSTORMS WILL GENERALLY MOVE TO THE NORTHEAST AT 30 MPH. LOW PRESSURE WILL TRACK NORTHEAST ACROSS THE AREA EARLY TONIGHT. DESPITE RATHER MODEST INSTABILITY...THE STRONG WINDS IN THE MID AND UPPER LEVELS OF THE ATMOSPHERE WILL PROVIDE THE POTENTIAL FOR STRONG TO SEVERE THUNDERSTORMS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THERE IS A CHANCE OF THUNDERSTORMS WEDNESDAY AFTERNOON AND EARLY WEDNESDAY NIGHT IN ADVANCE OF AN APPROACHING COLD FRONT. SMALL CRAFT ADVISORIES MAY BECOME NECESSARY FOR SUNDAY NIGHT ON OUTER SAGINAW BAY AND ON THE LAKE HURON NEARSHORE WATERS. ALSO...SMALL CRAFT ADVISORY CONDITIONS ARE LIKELY TO DEVELOP AGAIN AT MID WEEK ON THE LAKE HURON NEARSHORE WATERS. .SPOTTER INFORMATION STATEMENT... DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGERS IMMEDIATELY. SPOTTER ACTIVATION MAY BE NEEDED TONIGHT. DWD YOU CAN OBTAIN YOUR LATEST NATIONAL WEATHER SERVICE FORECASTS ONLINE AT WWW.WEATHER.GOV/DETROIT (ALL LOWER CASE).
The Detroit radar (KDTX), 49 km away, was scanning. The volume nearest the first event began at 23:06 UTC.
1 thunderstorm wind. Local standard time, as filed.
Broadcast media and trained spotters reported trees blown down and metal skirting ripped off several mobile homes.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2006Every state in 2006This day in weather historyWarnings in Michigan, September 2006
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: 5531328.