A warm front approaching from the south produced several thunderstorms which produced large hail.
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 episode as NWS DTX wrote it up.
A warm front approaching from the south produced several thunderstorms which produced large hail.
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 4, 2:23 PM EST, 4 hours 43 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 323 PM EDT FRI JUN 4 2010 .SHORT TERM...TONIGHT AN INCREASINGLY UNIMPRESSIVE SETUP EVOLVING THERMODYNAMICALLY FOR MUCH OF THE FORECAST AREA THIS AFTERNOON PER LATEST SATELLITE AND OBSERVATIONAL TRENDS. LATEST UPPER AIR/RUC AND WATER VAPOR ANALYSIS SHOWING THE MAIN SHORTWAVE TROUGH NOW SHIFTING ACROSS CENTRAL MICHIGAN. THE SOUTHERN EXTENT OF THIS WAVE CONTINUES TO SUPPORT AN AREA OF LIGHT SHOWERS AND A CANOPY OF MID LEVEL CLOUD COVER. THIS IS EFFECTIVELY LIMITING AIRMASS DESTABILIZATION POTENTIAL FOR AREAS AS FAR SOUTH AS THE M-59 CORRIDOR. ALSO NOTING GOOD DRY AIR ENTRAINMENT ACCOMPANYING THIS WAVE WITH DEWPOINTS FALLING INTO THE 50S ACROSS MUCH OF WEST-CENTRAL MI. FROM THE ARB-DTW CORRIDOR SOUTHWARD...TEMPERATURES ARE STARTING TO SNEAK TOWARD THE 78-80F RANGE...ALTHOUGH THE SURFACE WARM FRONT /AND DEEPER MOISTURE/ REMAINS FIRMLY POSITIONED BACK INTO IN/OH. GIVEN THE POSITIONING OF THE DEEPER MOISTURE/INSTABILITY AXIS TO OUR SOUTH...PROSPECTS OF SEEING A MORE WIDESPREAD/ORGANIZED AREA OF SHOWERS AND THUNDERSTORMS CONTINUES TO WANE. A PERIOD OF ENHANCED FORCING PROVIDED BY THE COMBINATION OF ADDITIONAL WEAK SHORTWAVE ENERGY...THE PRESENCE OF A MID LEVEL SPEED MAX AND WEAK LOW LEVEL CONVERGENCE STILL SUPPORTS CARRYING CHANCE POPS TARGETING THE 22-03Z PERIOD. WILL LARGELY DISCOUNT THE DETAILS OF THE NAM WHICH REMAINS OVERLY UNSTABLE ACROSS SOUTHEAST MI...FAVORING THE TIMING AND COVERAGE SUGGESTED BY THE LOCAL HI-RES WRF. CURRENT CONDITIONS SUPPORT RAMPING DOWN THE SEVERE WORDING TOWARD THE NORTH...ALTHOUGH SUPPORTIVE WIND FIELDS/SHEAR WOULD FAVOR MAINTAINING AT LEAST AN ISOLATED MENTION FOR THE FAR SOUTH UNDER CONTINUED WEAK INSTABILITY THROUGH THE EVENING HOURS. SHOWERS WILL QUICKLY DIMINISH OVERNIGHT AS WEAK SUBSIDENCE DEVELOPS IN THE WAKE OF THESE WAVES. SOME LINGERING CONVERGENCE MAY GRIND OUT AN ISOLATED SHOWER OR TWO ACROSS THE FAR SOUTH...BUT OTHERWISE DRY CONDITIONS OVERNIGHT. CLOUDS LOOK PROBLEMATIC...BUT ANY CLEARING MAY PROVIDE ENOUGH COOLING TO BRING SOME PATCHY FOG LATE GIVEN THE MOIST RESIDENT CONDITIONS. LOWS WILL RANGE FROM UPPER 50S NORTH TO SOME MID 60S WITHIN THE DETROIT METRO AREA. && .LONG TERM... A COOLING TREND IS EXPECTED AS WE HEAD INTO THE WEEKEND...AS MULTIPLE UPPER LEVEL TROUGHS/LOWS CONVERGE ON THE GREAT LAKES/NEW ENGLAND/MID ATLANTIC REGION...LEADING TO LOWERING HEIGHTS AND SUPPRESSION OF THE JET STREAM TO OUR SOUTH. CYCLOGENESIS WILL OCCUR ON SATURDAY/SATURDAY NIGHT...BUT MAY OCCUR A BIT TOO LATE FOR US IF YOU BELIEVE GEM/GFS. IT APPEARS SOME SEMBLANCE OF A LOW WILL TRACK CLOSE TO THE SOUTHERN MICHIGAN BORDER LATE SATURDAY...WITH GOOD FGEN/BAROCLINIC ZONE AND AMPLE LOW LEVEL INSTABILITY TOWARD THE OHIO BORDER TO SUPPORT SHOWERS AND THUNDERSTORMS SATURDAY AFTERNOON/EVENING. THE GFS/GEM SUGGEST CONVECTION WITH LINE UP ACROSS THE FAR NORTHERN OHIO VALLEY AND REMAIN PREDOMINATELY SOUTH OF THE CWA. THIS IS AN INSTABILITY VS FORCING DILEMMA...AS CURRENT JET ENERGY MOVING THROUGH THE PACIFIC NORTHWEST SHOULD PROVIDE SOME FAVORABLE LARGE SCALE ASCENT OVER SOUTHERN LOWER MICHIGAN BY SATURDAY AFTERNOON...BUT BEST INSTABILITY AND MOISTURE AXIS WILL BE ACROSS THE SOUTHERN OHIO VALLEY. WITH SUPPORT FROM THE UKMET AND LOCAL WRFHEMI...WILL FAVOR A SOLUTION MORE IN LINE WITH NAM...STRONGER SURFACE LOW...RESULTING IN LIKELY POPS FOR AT LEAST THE SOUTH HALF OF THE CWA LATER SATURDAY INTO SATURDAY EVENING/NIGHT. DAY 2 OUT OF SPC ALSO SUPPORTS A THUNDERSTORM MENTION ACROSS THE SOUTH HALF OF THE CWA. RAISED MAXES A FEW DEGREES ON SATURDAY AND ESPECIALLY SATURDAY NIGHT. EVEN WITH ACTIVITY SPREADING IN DURING THE AFTERNOON...DON'T SEE HOW TEMPERATURES WILL NOT RESPOND AT LEAST INTO THE MID 70S...AS THERE IS NOT MUCH OF AN AIRMASS CHANGE. SECONDARY COLD FRONT DROPPING SOUTH ON SUNDAY (-18 C AT 500 MB) WILL ALSO SUPPORT A CHANCE OF SHOWERS AND EVEN ISOLATED THUNDERSTORMS AS EQL LEVELS PROGGED ABOVE 15 KFT/AROUND -20 C ISOTHERM. LIMITED LOW LEVEL MOISTURE/INSTABILITY (SURFACE BASED LI'S AROUND ZERO/CAPES OF AROUND 500 J/KG) WILL LIMIT COVERAGE...BUT LOW FREEZING LEVELS/WET BULB ZERO HEIGHTS WILL BE CONDUCIVE FOR SMALL HAIL IF SUFFICIENT UPDRAFT PRESENTS ITSELF. COOLER TROUGHING/CYCLONIC FLOW TO PERSIST INTO MONDAY...WITH 850 MB TEMPS OF 7 C SUPPORT HOLDING MAXES IN THE LOWER 70S. BASED OFF 12Z GFS/00Z EUROPEAN... THE GENERAL TREND SHOULD FEATURE BUILDING HEIGHTS (MODERATING TEMPERATURES) AS UPPER LEVEL RIDGE AMPLIFIES OVER THE MISSISSIPPI RIVER VALLEY. WILL NEED TO BE LEARY OF POSSIBLE ACTIVE WARM FRONT LIFTING INTO THE CENTRAL GREAT LAKES TOWARD THE END OF THE WORK WEEK. A QUICK LOOK AT THE 12Z EUROPEAN SHOWS A POSSIBLE SPEED BUMP ON WEDNESDAY/SHORTWAVE TROUGH-WAVE OF LOW PRESSURE TRACKING THROUGH BEFORE WE RESUME OUR UPWARD CLIMB. WITH IT BEING SUCH AN ERUPT SHIFT FROM THE 00Z RUN...WILL WAIT ANOTHER RUN BEFORE INTRODUCING POPS. && .MARINE... THERE REMAINS A POSSIBILITY FOR SHOWERS AND THUNDERSTORMS THIS EVENING...MAINLY OVER LAKE ST CLAIR AND ERIE. HOWEVER... DIMINISHING INSTABILITY WILL LIMIT THE POTENTIAL FOR SEVERE THUNDERSTORMS. A WEAK LOW PRESSURE SYSTEM LIFTING ACROSS SOUTHERN LAKE HURON WILL BRING A BRIEF INCREASE IN NORTHEAST WINDS OVERNIGHT...BUT WITH ONSHORE GUSTS AND CORRESPONDING WAVES HOLDING BELOW ADVISORY CONDITIONS. SHOWERS AND THUNDERSTORMS BECOME POSSIBLE AGAIN LATE SATURDAY INTO SATURDAY NIGHT AS ANOTHER LOW PRESSURE SYSTEM TRACKS THROUGH THE SAME AREA. THIS WILL AGAIN RESULT IN A BRIEF INCREASE IN NORTHEAST WINDS SATURDAY NIGHT. FAVORABLE BOATING CONDITIONS EXPECTED FOR EARLY NEXT WEEK AS SLIGHTLY COOLER AND DRIER AIR FUNNELS IN UNDER LIGHTER NORTHERLY FLOW. && .PREV DISCUSSION...ISSUED 209 PM EDT FRI JUN 4 2010 AVIATION... VFR CU FIELD CONTINUES TO SLOWLY EXPAND AS INSTABILITY GRADUALLY GROWS THIS AFTERNOON. HOWEVER MID LEVEL CLOUD /WITH A FEW SHOWERS NORTH/ WILL QUICKLY STREAM OVERHEAD WITHIN THE NEXT COUPLE OF HOURS. THIS WILL EFFECTIVELY KEEP THE BETTER INSTABILITY TO THE SOUTH. THIS LEAVES THUNDERSTORM POTENTIAL LOCALLY IN QUESTION THROUGH THIS EVENING. A NARROW WINDOW STILL EXISTS RIGHT AROUND 00Z IN DETROIT...BUT CHANCES TOWARD THE NORTH APPEAR TOO LIMITED NOW FOR A MENTION. RESIDUAL SCT/BKN STRATOCU WILL TEND TO LOWER TONIGHT WITH SOME POTENTIAL FOR A PERIOD OF MVFR CEILINGS DURING THE EARLY MORNING HOURS. && .DTX WATCHES/WARNINGS/ADVISORIES... MI...NONE. LAKE HURON...NONE. LAKE ST CLAIR...NONE. MI WATERS OF LAKE ERIE...NONE. && SHORT TERM...MR LONG TERM....SF MARINE.......MR AVIATION.....MR 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 709 PM EDT FRI JUN 4 2010 LCZ422-423-460-LEZ444-MIZ060>063-068>070-075-076-082-083-052315- ST. CLAIR RIVER-DETROIT RIVER-LAKE ST. CLAIR- MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI- SHIAWASSEE-GENESEE-LAPEER-ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB- WASHTENAW-WAYNE-LENAWEE-MONROE- 709 PM EDT FRI JUN 4 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ERIE...LC AND SOUTHEAST MICHIGAN. .DAY ONE...TONIGHT A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL MIDNIGHT EDT. THUNDERSTORMS THIS EVENING WILL HAVE THE POTENTIAL TO PRODUCE DAMAGING WINDS IN EXCESS OF 60 MPH AND HAIL GREATER THAN ONE INCH IN DIAMETER. THERE IS ALSO POTENTIAL FOR THE STRONGER STORMS TO PRODUCE AN ISOLATED TORNADO. THUNDERSTORM MOTION WILL BE FROM WEST TO EAST AT 30 MPH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS A CHANCE OF THUNDERSTORMS SATURDAY AFTERNOON INTO SATURDAY NIGHT SOUTH OF I-69...AS AN AREA OF LOW PRESSURE TRACKS ALONG THE SOUTHERN MICHIGAN BORDER. THESE STORMS ARE NOT EXPECTED TO BE SEVERE. ISOLATED THUNDERSTORMS WILL ALSO BE POSSIBLE ON SUNDAY...AS A COLD FRONT DROPS SOUTH THROUGH THE STATE. .SPOTTER INFORMATION STATEMENT...DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGER IMMEDIATELY. SPOTTERS HAVE BEEN ACTIVATED. LHZ442-443-463-464-MIZ053>055-052315- HARBOR BEACH TO PORT SANILAC MI-PORT SANILAC TO PORT HURON MI- LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE- LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE- SAGINAW-TUSCOLA-SANILAC- 709 PM EDT FRI JUN 4 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE HURON AND SOUTHEAST MICHIGAN. .DAY ONE...TONIGHT THUNDERSTORMS ARE LIKELY THROUGH MIDNIGHT TONIGHT. WHILE THESE THUNDERSTORMS ARE NOT EXPECTED TO BE SEVERE...THEY WILL HAVE THE POTENTIAL TO PRODUCE WIND GUSTS TO 50 MPH AND HAIL TO THREE QUARTERS OF AN INCH IN DIAMETER. THUNDERSTORM MOTION WILL BE FROM WEST TO EAST AT 30 MPH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT...SPOTTER ACTIVATION IS NOT ANTICIPATED THIS EVENING. LHZ421-422-441-462-MIZ047>049-052315- OUTER SAGINAW BAY SW OF ALABASTER TO PORT AUSTIN MI TO INNER SAGINAW BAY-INNER SAGINAW BAY SW OF POINT AU GRES TO BAY PORT MI- PORT AUSTIN TO HARBOR BEACH MI- LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE- MIDLAND-BAY-HURON- 709 PM EDT FRI JUN 4 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE HURON AND SOUTHEAST MICHIGAN. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT...SPOTTER ACTIVATION WILL NOT BE REQUIRED. LHZ361>363-052315- LAKE HURON FROM 5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LT BEYOND 5 NM OFF SHORE- LAKE HURON FROM PRESQUE ISLE LIGHT TO STURGEON POINT MI BEYOND 5NM OFF SHORE- LAKE HURON FROM STURGEON POINT TO ALABASTER MI BEYOND 5NM OFF SHORE- 709 PM EDT FRI JUN 4 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE HURON. .DAY ONE...TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT...SPOTTER ACTIVATION WILL NOT BE REQUIRED. HLO YOU CAN OBTAIN YOUR LATEST NATIONAL WEATHER SERVICE FORECASTS ONLINE AT WWW.WEATHER.GOV/DETROIT (ALL LOWER CASE).
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 557 PM EDT FRI JUN 4 2010 MIZ053>055-060>063-050000- SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER-ST. CLAIR- INCLUDING THE CITIES OF...SAGINAW...CARO...SANDUSKY...OWOSSO... FLINT...LAPEER...PORT HURON 557 PM EDT FRI JUN 4 2010 SCATTERED SHOWERS AND THUNDERSTORMS ARE MOVING THROUGH THE AREA. BRIEF PERIODS OF HEAVY RAIN ARE EXPECTED WITH THESE STORMS. THERE IS A POTENTIAL FOR THE STORMS TO INCREASE IN ACTIVITY BETWEEN 600PM AND 800PM RK/BT
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 703 PM EDT FRI JUN 4 2010 MIZ063-050000- ST. CLAIR- 703 PM EDT FRI JUN 4 2010 ...SIGNIFICANT WEATHER ADVISORY... AT 701 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 5 MILES NORTHWEST OF CAPAC...MOVING EAST AT 30 MPH. PEA SIZE HAIL...WINDS GREATER THAN 40 MPH...BRIEF HEAVY DOWNPOURS... ARE POSSIBLE WITH THIS STORM. * THE THUNDERSTORM WILL BE NEAR... YALE AND EMMETT BY 720 PM EDT... LAKEPORT BY 750 PM EDT... PORT HURON BY 755 PM EDT... GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW AROUND. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THIS STORM HAS PASSED. MR
The Detroit radar (KDTX), 30 km away, was scanning. The volume nearest the first event began at 00:06 UTC.
10 hail, 5 thunderstorm wind. Local standard time, as filed.
Over a dozen trees reported blown down, along with tree limbs.
The large hail caused broken windows.
Widespread tree damage was reported in the city of Northville. A large tree was also uprooted and fell onto a house.
Six to twelve inch diameter tree limbs reported blown down.
A tree was reported blown down.
Hail was large enough to break windows.
Large tree limbs were reported blown down.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2010Every state in 2010This day in weather historyWarnings in Michigan, June 2010
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: 243503, 229444, 243495, 229445, 243497, 229446, 229448, 229453, 243498, 243499, 229447, 229452, 243494, 243501, 243502.