A few tornadic producing severe thunderstorms tracked along and south of I-94 corridor during the early evening hours.
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 few tornadic producing severe thunderstorms tracked along and south of I-94 corridor during the early evening hours.
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 23, 5:56 AM EST, 3 hours 53 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 656 AM EDT WED JUN 23 2010 .AVIATION... MCS CONTINUES TO PROGRESS TOWARDS THE AREA EARLY THIS MORNING AND WILL CROSS LAKE MICHIGAN INTO WESTERN LOWER MICHIGAN AS THE FORECAST BEGINS. WHILE THIS SYSTEM HAS BEEN ABLE TO MAINTAIN ITSELF OVERNIGHT CAPPING FROM THE MID MISSISSIPPI VALLEY ON THROUGH NORTHERN INDIANA AND NOW SOUTHERN LOWER MICHIGAN HAS MADE ANY EXPANSION DIFFICULT. WILL INCLUDE A MENTION OF THUNDER FOR ALL SITES IN THE 15Z-18Z TIME FRAME...WITH A BETTER CHANCE OF PERSISTENT HEAVY RAIN WITH THIS 1ST ROUND AT FNT...SO WILL FOCUS LOWER CIGS/VSBYS THERE. EXPECT A SECOND ROUND OF THUNDERSTORMS LATER IN THE DAY AS WELL AS SHORTWAVE TROUGH ENCROACHES ON THE AREA. COVERAGE/SEVERITY WILL DEPEND ON HOW THIS INITIAL ACTIVITY UNFOLDS...BUT WILL AT LEAST HAVE SEVERAL HOURS OF TEMPO FOR THUNDER AT OR JUST AFTER 00Z. TROUGH PASSAGE OCCURS AFTER 06Z-08Z WITH A WIND SHIFT FROM SOUTHWEST TO NORTHWEST...AS WELL AS MUCH QUIETER WEATHER BY LATE TONIGHT INTO THURSDAY AM. && .PREV DISCUSSION...ISSUED 328 AM EDT WED JUN 23 2010 SHORT TERM...TODAY AND TONIGHT LOOKS TO BE A VERY ACTIVE PERIOD INTO TONIGHT ACROSS THE AREA AS VIGOROUS SHORTWAVE RIDES THROUGH THE UPPER MIDWEST/NORTHERN GREAT LAKES ALONG THE TOP OF AN EXPANSIVE...BUT FLATTENED...UPPER RIDGE. OVERALL COMPLEXION OF THE CONVECTION...SAY THAT THREE TIMES REAL FAST...WILL INITIALLY BE DETERMINED BY JUST HOW THE LEAD FORWARD PROPAGATING MCS EVOLVES EARLY THIS MORNING. SO FAR...THE INFLUENCE OF CAPPING IS VERY EVIDENT FROM ABOUT US HWY 20 SOUTH OVER THE REST OF IOWA...WHERE THE BOWING PORTION OF THE CURRENT CONVECTIVE COMPLEX IS TRYING...SO FAR UNSUCCESSFULLY...TO TAKE HOLD. CAPPING CAN THEN BE INFERRED FROM SATELLITE LOOPS EAST NORTHEAST TO ROUGHLY THE RIDGE AXIS BETWEEN MKE/CHI. GIVEN THIS SETUP...THE MOST ACTIVE THUNDERSTORMS ARE LINED UP GENERALLY WEST TO EAST FROM NORTHEAST NEBRASKA INTO NORTHERN IOWA/FAR SOUTHERN MINNESOTA...AND WILL PROBABLY LINE UP CLOSER TO I 90 AND TRACK EASTWARD INTO MICHIGAN AROUND SUNRISE...EVENTUALLY FOCUSING OVER THE OUR NORTHERN CWA. WILL BE CLOSELY WATCHING MESOSCALE TRENDS OVER THE MID MISSISSIPPI VALLEY EARLY THIS MORNING TO GET A FEEL FOR ANY DEVIATION FURTHER SOUTH (NAMELY ANY DECENT LINE SEGMENT THAT CAN EXPAND ON SOUTHERN EDGE OF CURRENT EAST/WEST LINE) THAN THIS EXPECTED TRACK. SO FAR IT SEEMS THE SYNOPTIC UPPER HEIGHT RISE/FALL PATTERN IS HAVING JUST AS MUCH INFLUENCE AS THE MESO/STORM SCALE ENVIRONMENT...IF NOT MORE. THIS IS CERTAINLY A CHANGE FROM THE NORM OF THE PAST 4 OR 5 DAYS. AM A BIT SURPRISED THAT BOTH NAM/GFS SEEM TO BE PICKING UP ON THIS GENERAL SCENARIO SO FAR...PERHAPS BECAUSE THIS SYNOPTIC SHORTWAVE IS SO WELL DEFINED...AND MINUS SOME "JUNK" QPF OVER THE THE SOUTHERN CWA LATER THIS MORNING/EARLY AFTERNOON...A BULK OF THE QPF SIGNATURE SUGGESTS THE LARGE MCS WILL CROSS LOWER MICHIGAN...AFFECT NORTHERN LOWER SOUTH INTO THE NORTHERN 1/3 OF OUR CWA DURING THE FIRST HALF OF THE DAY...LEAVING AMPLE OPPORTUNITY FOR ANOTHER VERY SIGNIFICANT ROUND OF THUNDERSTORMS LATE THIS AFTERNOON THROUGH THE EVENING AS FORCING/LIFT FROM THE MAIN SHORTWAVE ARRIVE AND ACT UPON SUBSTANTIAL INSTABILITY ALONG/SOUTH OF LARGE SCALE CONVECTIVE BOUNDARY THAT WILL REMAIN AFTER THE PASSAGE OF MORNING MCS. SO...GIVEN THIS IDEA...WOULD EXPECT A LARGE AREA OF HEAVY RAIN WITH THE FIRST SYSTEM...THAT WILL AFFECT NORTHERN PORTIONS OF THE CWA. POCKETS OF SEVERE WEATHER WILL CERTAINLY BE POSSIBLE AS A DECENT FLOW OF UNSTABLE LOW LEVEL AIR IS ALREADY WORKING GRADUALLY INTO THE REGION ON SOUTH/SOUTHWEST FLOW AND THIS WILL EXPAND WITH INCREASING SPEED AFTER SUNRISE. WIND THREAT WITH ANY LINE SEGMENT ALONG THE SOUTHERN EDGE OF THE BROADER EAST/WEST SYSTEM WILL BE ENHANCED EARLY ON AS 40-50 KT H5 WIND IMPINGES ON THE AREA BY MIDDAY. THE SECOND ROUND OF THUNDERSTORMS COULD BE QUITE EXPLOSIVE AND PRODUCE RATHER SIGNIFICANT SEVERE WEATHER LATER IN THE DAY AS CAPPING ERODES DUE TO STRONG HEATING...AS WELL AS THE INFLUENCE OF HEIGHT FALLS IN ADVANCE OF THE APPROACHING SHORTWAVE. THE MAIN HAZARD WILL BE DAMAGING WINDS (AIDED BY 75 KNOT H5 JET MAX)...BUT WILL ALSO INCLUDE LARGE HAIL DUE TO STRONG UPDRAFTS EXPECTED WITH RATHER HIGH INSTABILITY BEING RELEASED QUICKLY AS CAP GIVES WAY. SHEAR PROFILES STILL SUGGEST THE POTENTIAL FOR A COUPLE OF TORNADOES IN/NEAR THE CWA AS WELL...ESPECIALLY GIVEN THE DEGREE OF INSTABILITY ..CAPE TO ~3000 J/KG...BY MID TO LATE AFTERNOON. IT IS INTERESTING TO SEE THAT CAPPING SEEMS TO REMAIN AN ISSUE OVER THE FAR SOUTHERN CWA...SO MIGHT VERY WELL EXPECT THE BEST CONCENTRATION OF STORMS TO OCCUR FROM I 94/M 59 NORTH AND PERHAPS AS FAR NORTH AS THE I 69 CORRIDOR AS THUNDERSTORMS DEVELOP INTO AN MCS DURING THE EVENING AND THEN HEAD EAST. BETTER PLACEMENT SHOULD BE POSSIBLE LATER BASED ON WHERE LOW LEVEL FEATURES ARE ALIGNED IN THE WAKE OF THUNDERSTORMS DURING THE FIRST HALF OF THE DAY. TEMPERATURES WILL BE DIFFICULT TO PINPOINT DUE TO EARLY CONVECTION. LOOKS LIKE THE GOING FORECAST IS A GOOD STARTING PLACE AS CLOUDS AND STORMS SHOULD LIMIT HEATING OVER THE NORTHERN CWA...ESPECIALLY THE SAGINAW VALLEY WHILE CAPPING SHOULD ASSIST IN KEEPING CLOUDS LESS OF A FACTOR TOWARDS THE OHIO BORDER. WILL MAINTAIN THE GRADIENT FROM 80 NORTHWEST TO AROUND 90 FROM DETROIT SOUTH. WITH THE RAPID INCREASE IN LOW LEVEL MOISTURE...THIS WILL LEAD TO HEAT INDICES IN THE 95-100 RANGE IN THIS WARMEST SECTOR. WILL NOT ISSUE A HEAT ADVISORY AS THE 100 DEGREE MARK IS ONLY PUSHED FOR AN HOUR OR TWO. SOUTHWEST WIND WILL ALSO BE A SOLID 15-20 MPH...HELPING TO TAKE THE EDGE OFF THE MUGGY CONDITIONS. LONG TERM...THURSDAY THROUGH TUESDAY SURFACE HIGH PRESSURE WILL BUILD IN FROM THE WEST ON THURSDAY...THEN MIGRATE INTO THE EASTERN GREAT LAKES ON FRIDAY. THIS WILL BRING DRY AND QUIET WEATHER ACROSS THE REGION BOTH DAYS. HIGHS THURSDAY WILL RISE INTO THE UPPER 70S TO MID 80S IN A POST-FRONTAL AIRMASS...BUT CONDITIONS WILL FEEL NOTICEABLY COOLER MINUS THE HUMIDITY. SIMILAR TEMPERATURES ARE EXPECTED ON FRIDAY. MODELS INDICATE A TIGHTENING OF THE 925-850MB THERMAL GRADIENT TO OUR NORTH OVER LAKE HURON FRIDAY NIGHT...AS SOUTHERLY FLOW INCREASES OVER THE SOUTHERN GREAT LAKES IN RESPONSE TO LOW PRESSURE STRENGTHENING OVER THE PLAINS...AND NORTHERLY FLOW INCREASES OVER MANITOBA AND ONTARIO AS SURFACE HIGH PRESSURE STRENGTHENS THERE. GFS/NAM/EURO ALL START RIDING WAVES OVER THIS BOUNDARY BY FRIDAY NIGHT...WHICH SHOULD BRING AN INCREASE IN CLOUD COVER TO SOUTHERN LOWER MICHIGAN BUT KEEP PRECIPITATION TO OUR NORTH. BY SATURDAY AFTERNOON HOWEVER...THIS SAME BOUNDARY LOOKS TO GET DRAWN SOUTHWARD INTO SOUTHEAST MICHIGAN AS AN AREA OF LOW PRESSURE LIFTS NORTHEAST OUT OF THE CENTRAL PLAINS (AHEAD OF AN UPPER TROUGH IN THE NORTHERN PLAINS). PAST FEW RUNS OF THE GFS AND EURO HAVE STALLED THE LOW-LEVEL BOUNDARY OVERHEAD THROUGH SUNDAY...WHILE INCREASING CONVERGENCE AND RIDING WAVES ACROSS IT. THIS SHOULD ONCE AGAIN GENERATE ROUNDS OF SHOWERS AND THUNDERSTORMS...UNTIL THE LOW LIFTS THROUGH MICHIGAN OR OHIO LATE ON SUNDAY AND THE WHOLE SYSTEM EXITS EAST SUNDAY NIGHT. WILL HAVE TO WATCH THIS SYSTEM CAREFULLY FOR SEVERE WEATHER POTENTIAL AS IT EVOLVES WITHIN THE MODELS OVER THE NEXT COUPLE OF DAYS. BOTH THE GFS AND EURO SHOW SOME PRETTY GOOD UPPER JET DYNAMICS BOTH SAT AND SUN...AND SHOW A GOOD STRENGTHENING IN THE LOW/MID LEVEL WIND FIELDS ON SUNDAY PRECEDING THE SURFACE LOW AND UPPER TROUGH. VERY WARM AND HUMID AIRMASS LOOKS TO PRECEDE THE SYSTEM STARTING ON SATURDAY AND THEN ESPECIALLY ON SUNDAY WHEN TEMPERATURES COULD MAKE A RUN AT 90 DEGREES SOUTH OF M-59. QUIET WEATHER THEN LOOKS TO RETURN FOR MONDAY AND TUESDAY AS AN UPPER RIDGE AMPLIFIES TO OUR WEST AND SURFACE HIGH PRESSURE SLIDES IN OVERHEAD. MARINE... THE POTENTIAL STILL EXISTS FOR A WIDESPREAD SEVERE WEATHER OUTBREAK LATER TODAY...FROM SOUTHERN LAKE HURON SOUTH TO WESTERN LAKE ERIE. EVEN BEFORE THAT...EXPECT AN INITIAL CONVECTIVE COMPLEX TO BRING HEAVY RAIN AND AT LEAST THE POTENTIAL OF SEVERE WEATHER TO PARTS OF LAKE HURON DURING THE FIRST HALF OF THE DAY. THE SECOND ROUND OF THUNDERSTORMS MAY BRING A PLETHORA OF SEVERE WEATHER...NAMELY WIND GUSTS TO 70 MPH OR MORE. OUTSIDE OF THIS SPECIFIC SEVERE WEATHER RISK...WINDS OVER THE CENTRAL GREAT LAKES WILL REMAIN RELATIVELY LIGHT OVER THE NEXT SEVERAL DAYS. WIND AND WAVES CAN AND WILL LIKELY BE HIGHER IN AND NEAR SOME OF THE THUNDERSTORMS. A COLD FRONT IS EXPECTED TO PUSH SOUTH ACROSS THE REGION AND SHIFT WINDS AROUND TO THE NORTHWEST TONIGHT. THE NORTHWEST WINDS WILL BE SOMEWHAT GUSTY OVERNIGHT INTO EARLY THURSDAY IN THE WAKE OF THIS FRONT...AND THEN CALM DOWN SIGNIFICANTLY ON FRIDAY AS HIGH PRESSURE PASSES THROUGH THE AREA. NO MARINE SPECIFIC HEADLINES ARE EXPECTED ATTM. SEVERAL WEAK LOW PRESSURE SYSTEMS WILL THEN TRACK THROUGH THE AREA THIS WEEKEND...BRINGING ADDITIONAL CHANCES OF SHOWERS/THUNDERSTORMS AS A RATHER BUSY WEATHER PATTERN PERSISTS. && .DTX WATCHES/WARNINGS/ADVISORIES... MI...NONE. LAKE HURON...NONE. LAKE ST CLAIR...NONE. MI WATERS OF LAKE ERIE...NONE. && AVIATION.....DG SHORT TERM...DG LONG TERM....HLO MARINE.......DG YOU CAN OBTAIN YOUR LATEST NATIONAL WEATHER SERVICE FORECASTS ONLINE AT WWW.WEATHER.GOV/DETROIT (ALL LOWER CASE).
HAZARDOUS WEATHER OUTLOOK...CORRECTED NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 953 AM EDT WED JUN 23 2010 MIZ047>049-053>055-060>063-068>070-075-076-082-083-241400- MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER- ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE- 1001 AM EDT WED JUN 23 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST MICHIGAN. .DAY ONE...TODAY AND TONIGHT SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 3 PM EDT FOR SOUTHEASTERN MICHIGAN. WIDESPREAD SEVERE WEATHER IS POSSIBLE TODAY AND INTO THE EVENING HOURS AS AN AREA OF LOW PRESSURE TRACKS ACROSS MICHIGAN. THE MAIN THREAT WILL BE DAMAGING WINDS IN EXCESS OF 70 MPH. HAIL IN EXCESS OF ONE INCH IN DIAMETER AND TORNADOES WILL ALSO BE POSSIBLE. THUNDERSTORMS WILL ALSO PRODUCE TORRENTIAL RAINFALL...WHICH COULD LEAD TO FLOODING IF STORMS TRACK OVER THE SAME AREAS. THE POTENTIAL EXISTS FOR TWO ROUNDS OF THUNDERSTORMS ACROSS A GREATER PORTION OF SOUTHEASTERN MICHIGAN. THE FIRST ROUND WILL TRACK ACROSS SOUTHEASTERN MICHIGAN IN THE FORM OF A SQUALL LINE PRIMARILY BETWEEN 10 AM AND 1 PM EDT. THE SECOND ROUND OF THUNDERSTORMS...AND POTENTIALLY MORE SIGNIFICANT...IS EXPECTED TO DEVELOP OVER PORTIONS OF SOUTHERN LOWER MICHIGAN BETWEEN 4 AND 6 PM EDT AND CONTINUE INTO THE EVENING HOURS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THERE IS A CHANCE OF THUNDERSTORMS SATURDAY AND SUNDAY. .SPOTTER INFORMATION STATEMENT... DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGER IMMEDIATELY. SPOTTER ACTIVATION WILL LIKELY BE NEEDED TODAY. LCZ422-423-460-LEZ444-LHZ361>363-421-422-441>443-462>464-241400- ST. CLAIR RIVER-DETROIT RIVER-LAKE ST. CLAIR- MICHIGAN WATERS OF LAKE ERIE FROM DETROIT RIVER TO NORTH CAPE MI- 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- 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-HARBOR BEACH TO PORT SANILAC MI- PORT SANILAC TO PORT HURON MI- LAKE HURON FROM PORT AUSTIN TO HARBOR BEACH BEYOND 5NM OFF SHORE- LAKE HURON FROM HARBOR BEACH TO PORT SANILAC BEYOND 5NM OFF SHORE- LAKE HURON FROM PORT SANILAC TO PORT HURON BEYOND 5NM OFF SHORE- 1001 AM EDT WED JUN 23 2010 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ERIE...LAKE HURON AND LAKE ST CLAIR. .DAY ONE...TODAY AND TONIGHT SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 3 PM EDT FOR SOUTHEASTERN MICHIGAN. WIDESPREAD SEVERE WEATHER IS POSSIBLE TODAY AND INTO THE EVENING HOURS AS AN AREA OF LOW PRESSURE TRACKS ACROSS MICHIGAN. THE MAIN THREAT WILL BE DAMAGING WINDS IN EXCESS OF 70 MPH. HAIL IN EXCESS OF ONE INCH IN DIAMETER AND TORNADOES WILL ALSO BE POSSIBLE. THUNDERSTORMS WILL ALSO PRODUCE TORRENTIAL RAINFALL...WHICH COULD LEAD TO FLOODING IF STORMS TRACK OVER THE SAME AREAS. THE POTENTIAL EXISTS FOR TWO ROUNDS OF THUNDERSTORMS ACROSS A GREATER PORTION OF SOUTHEASTERN MICHIGAN. THE FIRST ROUND WILL TRACK ACROSS SOUTHEASTERN MICHIGAN IN THE FORM OF A SQUALL LINE PRIMARILY BETWEEN 10 AM AND 1 PM EDT. THE SECOND ROUND OF THUNDERSTORMS...AND POTENTIALLY MORE SIGNIFICANT...IS EXPECTED TO DEVELOP OVER PORTIONS OF SOUTHERN LOWER MICHIGAN BETWEEN 4 AND 6 PM EDT AND CONTINUE INTO THE EVENING HOURS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THERE IS A CHANCE OF THUNDERSTORMS SATURDAY AND SUNDAY. .SPOTTER INFORMATION STATEMENT... DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGER IMMEDIATELY. SPOTTER ACTIVATION WILL LIKELY BE NEEDED TODAY. CB 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 848 AM EDT WED JUN 23 2010 MIZ060>062-068-069-075-076-082-083-231445- GENESEE-LAPEER-LENAWEE-LIVINGSTON-MONROE-OAKLAND-SHIAWASSEE- WASHTENAW-WAYNE- 848 AM EDT WED JUN 23 2010 ...SPECIAL WEATHER STATEMENT... AT 843 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 54 MILES NORTHWEST OF LANSING TO 90 MILES WEST OF ADRIAN...MOVING EAST AT 50 MPH. WINDS GREATER THAN 30 MPH...FREQUENT CLOUD TO GROUND LIGHTNING... BRIEF HEAVY DOWNPOURS...ARE POSSIBLE WITH THESE STORMS. * THUNDERSTORMS WILL BE NEAR... LAINGSBURG BY 950 AM EDT... OWOSSO BY 955 AM EDT... PERRY AND MORRICE BY 1000 AM EDT... BANCROFT BY 1005 AM EDT... LENNON AND FOWLERVILLE BY 1010 AM EDT... HUDSON AND GREGORY BY 1015 AM EDT... SWARTZ CREEK BY 1020 AM EDT... GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE PASSED. SEVERE THUNDERSTORM WATCH NUMBER 394 IS IN EFFECT UNTIL 3 PM.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 946 AM EDT WED JUN 23 2010 MIZ060>063-068>070-075-076-082-083-231545- GENESEE-LAPEER-LENAWEE-LIVINGSTON-MACOMB-MONROE-OAKLAND-SHIAWASSEE- ST. CLAIR-WASHTENAW-WAYNE- 946 AM EDT WED JUN 23 2010 ...SPECIAL WEATHER STATEMENT... AT 943 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 14 MILES NORTHWEST OF OWOSSO TO 75 MILES WEST OF ADRIAN...MOVING EAST AT 50 MPH. WINDS GREATER THAN 30 MPH...OCCASIONAL CLOUD TO GROUND LIGHTNING... BRIEF HEAVY DOWNPOURS...ARE POSSIBLE WITH THESE STORMS. * THUNDERSTORMS WILL BE NEAR... LAINGSBURG AND HENDERSON BY 955 AM EDT... OWOSSO BY 1000 AM EDT... PERRY AND NEW LOTHROP BY 1005 AM EDT... BANCROFT BY 1010 AM EDT... LENNON AND FLUSHING BY 1015 AM EDT... SWARTZ CREEK AND FLINT BY 1020 AM EDT... HOWELL BY 1025 AM EDT... GUSTY WINDS MAY CAUSE SMALL OBJECTS SUCH AS TRASH BINS TO BLOW AROUND. STAY AWAY FROM HIGH OBJECTS OUTDOORS SUCH AS TREES. SEEK SHELTER IN A STURDY STRUCTURE UNTIL THESE STORMS HAVE PASSED. SEVERE THUNDERSTORM WATCH 394 IS IN EFFECT UNTIL 3 PM.
The Detroit radar (KDTX), 22 km away, was scanning. The volume nearest the first event began at 14:47 UTC.
10 thunderstorm wind, 2 tornado. Local standard time, as filed.
A 12 inch diameter tree was blown down, as well as a few 6 inch diameter tree limbs.
A tree was blown down.
Large tree limbs were blown down.
Trees and tree limbs were blown down.
A NWS survey confirmed a tornado touched down near the intersection of Milkey Rd and Saline-Milan Rd, approximately 2 1/2 miles southeast of Saline. The tornado tracked east-northeast and lifted near Carpenter Rd between Judd and Willis Rd, just east of US 23. This tornado was rated an EF0 with winds estimated at 70 MPH. The path length was approximately 3.7 miles and the width was 75 yards. There was tree damage but no significant structural damage.
A large tree and several additional large tree limbs were reported blown down.
An NWS storm survey confirmed a tornado touched down just north of the Cone Rd exit off US 23...about 2 miles south of Milan at 10:06 PM June 23. The tornado lifted about 2 1/2 miles northeast of Maybee, near Steffas Rd between Scofield and Zink. The total path length was 11 1/2 miles with an average path width of 50 yards. The tornado was rated an EF0 along most of its path, producing winds of 60 to 70 MPH. However, EF1 damage with winds estimated at 90 MPH was found near Tuttle Hill Rd in London Township where a roof was torn off of a pole barn and substantial tree damage was found. The width of this tornado had briefly extended to 100 yards in this location. Several homes also had roof and shingle damage - mainly in and near the town of Scofield.
A trained spotter measured a 72 mph thunderstorm wind gust.
Large trees limbs were reported blown down.
A tree was reported blown down.
A tree was reported blown down.
Several trees and tree limbs were 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 historyThe tornado archive for Michigan, 2010Warnings 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: 244763, 245224, 245225, 245226, 228969, 245227, 226807, 245228, 245229, 245230, 245236, 245239.