A measured wind gust of 40 knots was observed at Detroit Light.
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 measured wind gust of 40 knots was observed at Detroit Light.
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 Jul 8, 2:57 PM EST, 3 hours 39 minutes earlier.
Area Forecast Discussion National Weather Service Detroit/Pontiac MI 357 PM EDT FRI JUL 8 2016 .DISCUSSION... A significant severe weather scenario is unfolding over central and southern lower Michigan during the afternoon into early evening. Ongoing convection in the Saginaw Valley is essentially a broken line of supercells focused along the surface cold front and dynamic support for lift on the lead edge of the upper level circulation. The latest runs of the ARW, NMM, and HRRR all suggest coverage will be more scattered farther south along the front toward metro Detroit. At the same time, mid afternoon mesoanalysis indicates MLCAPE around 2500 J/KG and 0-6 km bulk shear of at least 45 knots all the way south to the Ohio border. Thus, while coverage may be lower farther south along the front, this instability/shear combination favors high potential for organized and intense convection over the entire area capable of large hail golf ball size and larger, damaging wind gusts, and tornadoes. Severe thunderstorm watch 356 remains in effect until 8 PM for all of SE Michigan. Regional radar composite shows substantial coverage of showers and weaker storms near the center of the upper low that will brush through the Tri Cities and Thumb region later in the evening/early overnight. The rest of the area will be dry with a general partly cloudy sky near the Ohio border. Passage of the cold front will bring surface dewpoint down into the upper 50s overnight and push min temps into the lower half of the 60s most locations outside of metro Detroit. The upper low will remain nearby to our east during Saturday and support weakly cyclonic to neutral flow over the central and eastern Great Lakes. Cooler air upstream today supports guidance max temps in the mid 70s for our area Saturday afternoon. This will set the stage for a considerable diurnal component to cloud cover and some instability related showers. Scattered coverage of showers similar to those over Minnesota into western Wisconsin seems like a good analog for SE Michigan. Mesoanalysis this afternoon indicates surface based CAPE generally less than 500 J/KG and no strikes in lightning detection. This is modeled quite well by CAMs like the ARW and NMM and supports holding off on mention of thunder in our area. Scattered showers would then persist into evening before dissipating quickly after sunset. High pressure will build over the region Sunday and last through Monday with reasonable confidence. There is some uncertainty regarding the pace of return flow development over the Midwest along with eastward extent of warm advection rainfall Monday into Monday night. Consensus of model guidance holds off on rain chances in SE Michigan until Tuesday which looks reasonable as the upper level ridge axis just begins to drift eastward by then. A steady warming trend back into the mid 80s Monday to near 90 again by Wednesday then looks solid given the depth of southerly flow in the large scale subject to convective trends. There is loose agreement in the medium range models for the next front to arrive Thursday into Thursday night. && .MARINE... Thunderstorms will develop along, and ahead of, a cold front that will sweep through the eastern Lakes this evening. Strong wind gusts around 60 to 70 mph and large hail up to 2 inches may be possible with these storms. Winds will become northwesterly by Saturday morning in the wake of the front. The added instability from the cooler air surging into the region will cause winds to increase during the afternoon. The favorable northwest fetch will build wave heights over the southern Lake Huron basin and along the shoreline of the Thumb. This may necessitate a small craft advisory Saturday afternoon into the overnight hours. The remainder of the forecast period will be quiet with light to moderate winds. && .PREV DISCUSSION... Issued at 111 PM EDT Fri Jul 8 2016 AVIATION... Atmosphere has struggled to erode the low moisture and stratus through the morning but skies finally look to be scattering out with better afternoon mixing. Attention turns to convective potential for the afternoon and evening hours. An approaching cold front will be the focus for an expanding area of showers and thunderstorms this afternoon. Initiation time will be around 18-19Z for MBS and FNT, and closer to 21Z for the Detroit area terminals. With the coverage hires models are forecasting, decided to go tempo for all sites at this time. Activity will end around 00Z with drier air leading to a VFR bkn deck above 5kft. Question will be what kind of stratus field do we get in the early morning again with the enhance low level moisture field left by the storms? Went with SCT for now til we see where the bulk of the rain is laid out. Winds will pick up this afternoon out of the west-southwest, and will veer northwesterly behind the front by Saturday morning. For DTW...Cloud decks will continue to rise over the next hour or two before stabilizing in low VFR. Timing of the thunderstorms still looks best from about 21-00Z this evening, but cannot rule out a stray storm in advance of the line. Will handle any isolated lead cell with an amendment. Low confidence in MVFR/IFR stratus early Saturday morning. //DTW Threshold Probabilities... * Medium in cigs aob 5kft through this evening...low for early Saturday morning. * Medium for thunderstorms in DTW airspace this afternoon. && .DTX WATCHES/WARNINGS/ADVISORIES... MI...NONE. Lake Huron...NONE. Lake St Clair...NONE. Michigan waters of Lake Erie...NONE. && DISCUSSION...BT MARINE.......DRK AVIATION.....DRK You can obtain your latest National Weather Service forecasts online at www.weather.gov/detroit.
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 1032 AM EDT FRI JUL 8 2016 MIZ047>049-053>055-060>063-068>070-075-076-082-083-090815- MIDLAND-BAY-HURON-SAGINAW-TUSCOLA-SANILAC-SHIAWASSEE-GENESEE-LAPEER- ST. CLAIR-LIVINGSTON-OAKLAND-MACOMB-WASHTENAW-WAYNE-LENAWEE-MONROE- 1032 AM EDT FRI JUL 8 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST MICHIGAN. .DAY ONE...TODAY AND TONIGHT NUMEROUS THUNDERSTORMS ARE EXPECTED FROM THE TRI CITIES AND NORTHERN THUMB DOWN TO ABOUT THE I-69 CORRIDOR WITH COVERAGE MORE SCATTERED TO THE SOUTH THROUGH METRO DETROIT. STORMS WILL HAVE POTENTIAL TO BECOME SEVERE OVER ALL OF SOUTHEAST MICHIGAN...CAPABLE OF WIND GUSTS TO 60 MPH OR GREATER AND LARGE HAIL NEAR GOLF BALL SIZE. THE ENVIRONMENT IS ALSO FAVORABLE FOR TORNADOES IN THE STRONGEST STORMS. TIMING FOR THE GREATEST SEVERE WEATHER THREAT IS FROM 2 PM TO 8 PM. STORM MOTION WILL BE WEST TO EAST AT 40 MPH. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THE NEXT CHANCE OF THUNDERSTORMS WILL BE WEDNESDAY. .SPOTTER INFORMATION STATEMENT... DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGER IMMEDIATELY. SPOTTER ACTIVATION MAY BE NEEDED DURING THE AFTERNOON AND EVENING. LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-090815- 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- 1032 AM EDT FRI JUL 8 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE ERIE...LAKE HURON AND LAKE ST CLAIR. .DAY ONE...TODAY AND TONIGHT NUMEROUS THUNDERSTORMS ARE EXPECTED TODAY OVER SAGINAW BAY AND LAKE HURON WITH COVERAGE MORE SCATTERED TO THE SOUTH THROUGH WESTERN LAKE ERIE. STORMS WILL HAVE POTENTIAL TO BECOME SEVERE OVER ALL AREAS... CAPABLE OF WIND GUSTS TO 50 KNOTS OR GREATER AND LARGE HAIL NEAR GOLF BALL SIZE. THE ENVIRONMENT IS ALSO FAVORABLE FOR WATERSPOUTS NEAR SHORELINE REGIONS. TIMING FOR THE GREATEST SEVERE WEATHER THREAT IS FROM 2 PM TO 8 PM. STORM MOTION WILL BE WEST TO EAST AT 35 KNOTS. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THE NEXT CHANCE OF THUNDERSTORMS WILL BE WEDNESDAY. .SPOTTER INFORMATION STATEMENT... DISPATCHERS...PLEASE NOTIFY YOUR EMERGENCY MANAGER IMMEDIATELY. SPOTTER ACTIVATION MAY BE NEEDED DURING THE AFTERNOON AND EVENING. YOU CAN OBTAIN YOUR LATEST NATIONAL WEATHER SERVICE FORECASTS ONLINE AT WWW.WEATHER.GOV/DETROIT (ALL LOWER CASE). BT
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
627 PM EDT FRI JUL 8 2016
MIZ055-062-063-082330-
SANILAC MI-ST. CLAIR MI-LAPEER MI-
627 PM EDT FRI JUL 8 2016
...SIGNIFICANT WEATHER ADVISORY FOR LAPEER...ST. CLAIR AND SOUTHERN
SANILAC COUNTIES UNTIL 730 PM EDT...
AT 626 PM EDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A
LINE EXTENDING FROM NEAR LEXINGTON TO NEAR MELVIN TO NEAR LAPEER.
MOVEMENT WAS EAST AT 40 MPH.
DIME SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THESE STORMS.
STRONG THUNDERSTORMS WILL BE NEAR...
CROSWELL...LEXINGTON AND APPLEGATE AROUND 630 PM EDT.
PECK AROUND 635 PM EDT.
YALE AROUND 640 PM EDT.
ALMONT AROUND 645 PM EDT.
CAPAC AROUND 650 PM EDT.
LAKEPORT AND EMMETT AROUND 700 PM EDT.
RICHMOND AND MEMPHIS AROUND 705 PM EDT.
ST. CLAIR AND MARYSVILLE AROUND 725 PM EDT.
OTHER LOCATIONS IMPACTED BY THESE STORMS INCLUDE ROSEBURG...VALLEY
CENTER...AMADOR...FARGO...LYNN TOWNSHIP...FORT
GRATIOT...COLUMBUS...BLAINE... SMITHS CREEK AND RATTLE RUN.
THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO
STATIONS AND AVAILABLE TELEVISION STATIONS FOR ADDITIONAL INFORMATION
AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT FOR
SOUTHEASTERN MICHIGAN.
LAT...LON 4289 8247 4274 8248 4279 8273 4290 8274
4288 8339 4311 8339 4332 8320 4336 8250
4317 8247 4310 8243 4295 8243
TIME...MOT...LOC 2226Z 283DEG 35KT 4330 8255 4322 8291 4302 8324
BEHNKESPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 634 PM EDT FRI JUL 8 2016 MIZ082-082330- LENAWEE- 634 PM EDT FRI JUL 8 2016 ...A STRONG THUNDERSTORM WILL AFFECT LENAWEE COUNTY... AT 634 PM EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR HILLSDALE... MOVING EAST AT 40 MPH. WINDS IN EXCESS OF 40 MPH AND HALF INCH HAIL ARE POSSIBLE WITH THIS STORM. THIS STORM WILL BE NEAR... HUDSON AND HUDSON AROUND 650 PM EDT. CLAYTON AROUND 700 PM EDT. ADRIAN AROUND 715 PM EDT. BLISSFIELD...DEERFIELD AND BRITTON AROUND 730 PM EDT. OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE CADMUS...MANITOU BEACH-DEVILS LAKE...RIDGEWAY...MACON...SENECA...SPRINGVILLE...ROLLIN... FAIRFIELD...CAMBRIDGE JUNCTION AND TIPTON. LAT...LON 4207 8436 4208 8377 4172 8377 4171 8436 TIME...MOT...LOC 2234Z 267DEG 35KT 4185 8457 DT
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
641 PM EDT FRI JUL 08 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0514 PM TSTM WND DMG 3 NNE CASS CITY 43.64N 83.16W
07/08/2016 TUSCOLA MI TRAINED SPOTTER
2 FT DIAMETER TREE DOWN AT SCHWEGLER AND DAUS...LIMB ON
WIRES AT FORESTVILLE RD AND VAN DYKE
&&
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</html>The Detroit radar (KDTX), 61 km away, was scanning. The volume nearest the first event began at 23:36 UTC.
2 marine thunderstorm wind. Local standard time, as filed.
A thunderstorm which produced wind damage in Wyandotte moved into the Detroit River.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Lake St. Clair in 2016Every state in 2016This day in weather history
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 2026-09-30. Each event’s entry at NCEI: 650585, 650586.