Numerous roads became impassable from heavy rain throughout Canton, with cars flooded.
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.
Numerous roads became impassable from heavy rain throughout Canton, with cars flooded.
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 16, 6:39 PM EST, 26 minutes earlier.
Area Forecast Discussion National Weather Service Detroit/Pontiac MI 739 PM EDT Tue Jul 16 2019 .AVIATION... Showers and thunderstorms with very heavy rainfall will continue along/just north of the I-94 corridor early in the forecast with a gradually lessening of coverage/intensity after 02z or so. Another period of scattered convection will be possible late tonight into Wednesday morning as the remnant circulation of TS Barry shifts across the Ohio Valley and a mid level disturbance advances ESE through SE Lower Michigan. MVFR to lower VFR cigs should be the rule until Wednesday afternoon in the wake of upper wave as weak frontal boundary settles south through the region and bring northerly flow. For DTW...Best potential for thunder continues through 02z or so. Brief IFR conditions (lower in terms of VSBYS) will be likely should thunderstorms occur over airport given efficient, high rainfall rates in increasingly tropical environment. More prevalent MVFR restrictions then become probable tonight. Early indications are that NE flow towards end of the period may stay low enough to prevent NE runway operations. .DTW THRESHOLD PROBABILITIES... * Moderate in ceilings below 5000 ft this evening. High tonight into early Wednesday morning. * Medium to high in thunderstorm occurrence through 02z or so. * Low to medium in visibility 1/2 SM and/or ceiling 200 ft in any thunderstorm this evening. && .PREV DISCUSSION... Issued at 333 PM EDT Tue Jul 16 2019 DISCUSSION... The forecast for this afternoon and evening remains mostly on track from the morning update which can be reference for additional details. The notable exception is the activation of the H7 front in response to energy shearing off the primary low and propagating into southwest Lower Michigan. While the heavy rain threat remains in place for the Detroit area and points south, it is apparent that the greatest potential for convection to organize and train now exists between the Saginaw Valley area and the I-69 corridor. The afternoon package will include increased pops, QPF, and and expansion of the highlight for heavy rain into this area. Convection will wane in intensity and coverage by 01-02z, but may well persist in a diminished fashion through much of the night. As the aforementioned mid-level front gradually approaches the northern reaches of the Detroit Metro by early Wednesday morning, mid-level forcing associated with a secondary moisture surge into the southern CWA will coincide with the passage of the trough axis roughly 07-13z. This will provide a focus for renewed development of a heavy rain threat mainly near and south of M59 for the first half of the day Wednesday with ongoing activity likely receiving a boost from diurnal heating before the moisture axis exits to the east during midday. Dry advection within developing northerly flow will allow dewpoints to gradually fall into the 60s during the remainder of the day, taking the edge of off high temperatures in the 80s. The northern periphery of broad, flat subtropical ridging will become established over the central and northern Great Lakes beginning Thursday. Deep layer westerly flow will advect an increasingly stout EML across the area beginning late in the day and thus marking the area's entry into a much hotter airmass. Ongoing convection or remnants thereof will presumably be coupled to the lead edge of said EML, precluding consideration of an excessive heat headline which would begin Thursday. NWP indicate sufficiently late timing that any MCS/remnants may have sufficient time to recover from the nocturnal minimum, though confidence in timing will remain low for the next couple of forecast cycles. 12z EC does indicate 1500 to 2000 j/kg MLCAPE persisting well into the evening with CAPE density increasing in a hurry as the EML spreads across the area. Veered wind profile supportive of 0-3km and 0-6km bulk shear values of 35 kts is very solid by mid-July standards and will easily be supportive of organized severe convection, the potential for which will be entirely dependent on the nature & timing of convection emerging from the MS Valley by Thursday morning. Attention in the extended forecast period remains turned to very hot conditions that will likely expand into SE Michigan for the late week and early weekend. A broad upper ridge will develop over the south central CONUS during the late week and expand to cover the southeast CONUS as well. The westerly flow on the northern periphery of this ridge will direct a very warm (850 mb temps around 23C) air mass from the central Plains into the Great Lakes. This will result in high temperatures solidly in the 90s on Friday and Saturday with Metro Detroit making a push at the upper 90s. The high moisture content of this air mass with dew points in the 70s will lead to afternoon heat indices over 100 degrees and little relief during the overnight hours. Heat headlines will likely be needed during this period with the main failure point in this forecast being several possible rounds of convection that may dampen the heat a bit. Confidence remains low on the timing or placement of any convective activity. The worst of the heat looks to break by Sunday as a cold front sinks south of the region. A second and stronger cold front will push through Sunday evening and usher in a more seasonable and comfortable air mass for early next week. MARINE... A midlevel frontal boundary will remain draped across the region heading into tonight, as the remnants of Barry lift northeastward and result in an increasing coverage of showers and embedded thunderstorms. A lingering pressure gradient across the region will allow southwest winds to continue gusting around 20 knots the remainder of the afternoon across Saginaw Bay and into the central Lake Huron basin, along with choppy 2-3 foot waves. As the remnants of Barry move towards the western Lake Erie basin tonight, winds and waves will temporarily weaken before becoming fresh northeasterly Wednesday with gusts 15-20 knots across much of the Lake Huron basin as the pressure gradient again tightens between high pressure drifting east south of James Bay and the remnant low moving into the Mid-Atlantic. The flow will then become more southwesterly in direction heading into Thursday, with frequent gusts around 20 knots possible across much of the local waters. HYDROLOGY... Showers and embedded thunderstorms will continue to increase in coverage as an increasingly tropical airmass overspreads the region from the south ahead of the remnants of Barry. The activity will continue to linger into tonight, with the heaviest activity expected to be south of the M-59 corridor late this afternoon and through this evening. A secondary band of heavier rain will also be possible across the Saginaw Valley tied to a lingering midlevel frontal boundary. Any shower, and especially thunderstorm, that develops will be capable of producing very efficient rainfall rates, with localized areas potentially seeing well in excess of 1 inch in a short period of time. Where the heaviest thunderstorms occur, localized areas may see 1-3 inches of rain. These rain amounts will lead to the potential of flooding in low lying and poor drainage areas as well as in the more heavily urbanized areas of metro Detroit. && .DTX WATCHES/WARNINGS/ADVISORIES... MI...NONE. Lake Huron...NONE. Lake St Clair...NONE. Michigan waters of Lake Erie...NONE. && AVIATION.....DG DISCUSSION...JVC/TF MARINE.......JVC HYDROLOGY....JVC You can obtain your latest National Weather Service forecasts online at www.weather.gov/detroit.
Hazardous Weather Outlook National Weather Service Detroit/Pontiac MI 425 AM EDT Tue Jul 16 2019 MIZ047>049-053>055-060>063-068>070-075-076-082-083-170900- Midland-Bay-Huron-Saginaw-Tuscola-Sanilac-Shiawassee-Genesee-Lapeer- St. Clair-Livingston-Oakland-Macomb-Washtenaw-Wayne-Lenawee-Monroe- 425 AM EDT Tue Jul 16 2019 This hazardous weather outlook is for portions of southeast Michigan. .DAY ONE...Today and Tonight There is a chance of thunderstorms today and tonight. Severe storms are not expected but locally heavy rainfall is a concern due to the high water content of this tropical airmass. .DAYS TWO THROUGH SEVEN...Wednesday through Monday There is a chance of thunderstorms on Wednesday with heavy rainfall possible. Humid and unstable air will sustain the chances for thunderstorms Thursday into Friday as well. The afternoon heat index is forecast to reach 98 to 105 degrees Thursday, Friday, and Saturday over much of the area. There will be minimal relief at night due to elevated humidity, especially in the Detroit urban heat island. A heat advisory or excessive heat warning will be warranted during this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated. LCZ460-LEZ444-LHZ361>363-421-422-441>443-462>464-170900- 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- 425 AM EDT Tue Jul 16 2019 This hazardous weather outlook is for portions of Lake Erie, Lake Huron and Lake St Clair. .DAY ONE...Today and Tonight There is a chance of thunderstorms today and tonight. Severe storms are not expected. .DAYS TWO THROUGH SEVEN...Wednesday through Monday There is a chance of thunderstorms on Wednesday. Humid and unstable air will sustain the chances for thunderstorms Thursday into Friday as well. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated. You can obtain your latest National Weather Service forecasts online at www.weather.gov/detroit. DRK
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
258 PM EDT TUE JUL 16 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0357 PM TSTM WND DMG 1 NNW OWOSSO 43.01N 84.18W
07/15/2019 SHIAWASSEE MI NWS STORM SURVEY
AT LEAST 20 TREES WERE SNAPPED FROM A WET MICROBURST
CLOSE TO THE SHIAWASEE RIVER IN OWOSSO. MANY OF THE TREES
APPEARED UNHEALTHY. WIND GUSTS ESTIMATED TO BE 60 MPH OR
SLIGHTLY GREATER.
&&
SFSpecial Weather Statement
National Weather Service Detroit/Pontiac MI
416 PM EDT Tue Jul 16 2019
MIZ076-083-162115-
Monroe MI-Wayne MI-
416 PM EDT Tue Jul 16 2019
...SPECIAL WEATHER STATEMENT...
At 415 PM EDT, Doppler radar was tracking a strong thunderstorm over
Maybee, or 7 miles west of Carleton, moving northeast at 25 mph.
Wind gusts to around 35 mph will be possible with this storm.
This strong thunderstorm will be near...
Carleton around 430 PM EDT.
Belleville around 440 PM EDT.
Flat Rock around 445 PM EDT.
Romulus around 500 PM EDT.
Taylor and Wyandotte around 505 PM EDT.
Greenfield Village around 510 PM EDT.
Dearborn around 515 PM EDT.
Other locations impacted by this storm include Brownstown Township,
Inkster, Melvindale, Redford, Sumpter Township, New Boston, Garden
City, Riverview, Wayne and Azalia.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4202 8370 4208 8365 4209 8354 4223 8354
4244 8338 4244 8334 4227 8310 4224 8313
4217 8313 4194 8350
TIME...MOT...LOC 2015Z 218DEG 24KT 4204 8353
DGSpecial Weather Statement
National Weather Service Detroit/Pontiac MI
528 PM EDT Tue Jul 16 2019
MIZ068-075-162230-
Livingston MI-Washtenaw MI-
528 PM EDT Tue Jul 16 2019
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN LIVINGSTON AND
NORTHERN WASHTENAW COUNTIES UNTIL 630 PM EDT...
At 526 PM EDT, Doppler radar was tracking a strong thunderstorm near
Chelsea, moving northeast at 25 mph.
Winds in excess of 40 mph will be possible with this storm.
This strong thunderstorm will be near...
Chelsea around 535 PM EDT.
Dexter around 550 PM EDT.
Ann Arbor around 555 PM EDT.
Hamburg around 605 PM EDT.
Whitmore Lake around 615 PM EDT.
South Lyon and Salem around 625 PM EDT.
Other locations impacted by this storm include Hudson Mills,
Lakeland, Lyndon Township, Hudson Mills Metropark, Island Lake State
Recreation Area, Chilson, Delhi Mills, Barton Hills, Unadilla and
Pinckney State Recreation Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4242 8413 4260 8368 4243 8366 4243 8359
4235 8354 4234 8355 4218 8413
TIME...MOT...LOC 2126Z 239DEG 23KT 4228 8406
DGSpecial Weather Statement
National Weather Service Detroit/Pontiac MI
603 PM EDT Tue Jul 16 2019
MIZ068-069-075-076-162300-
Livingston MI-Oakland MI-Washtenaw MI-Wayne MI-
603 PM EDT Tue Jul 16 2019
...SPECIAL WEATHER STATEMENT...
At 603 PM EDT, Doppler radar was tracking scattered strong
thunderstorms along a line extending from near West Bloomfield to 7
miles northwest of Saline. Movement was northeast at 25 mph.
Winds in excess of 30 mph will be possible with these storms.
Strong thunderstorms will be near...
West Bloomfield around 610 PM EDT.
Pontiac around 620 PM EDT.
Ypsilanti, Rochester and Dixboro around 640 PM EDT.
Whitmore Lake around 645 PM EDT.
Canton, South Lyon, Northville and Salem around 700 PM EDT.
Other locations impacted by these storms include Franklin, Keego
Harbor, Waterford, Orchard Lake, Commerce, Delhi Mills, Pleasant
Lake, Auburn Hills, Bingham Farms and Farmington Hills.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 4270 8350 4268 8309 4266 8309 4222 8352
4220 8408
TIME...MOT...LOC 2203Z 234DEG 20KT 4263 8339 4222 8391
DGPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI
736 PM EDT TUE JUL 16 2019
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0735 PM HEAVY RAIN 2 E YPSILANTI 42.24N 83.58W
07/16/2019 M1.03 INCH WASHTENAW MI TRAINED SPOTTER
25 MINUTE RAINFALL TOTAL.
&&
TFSpecial Weather Statement
National Weather Service Detroit/Pontiac MI
743 PM EDT Tue Jul 16 2019
MIZ076-170045-
Wayne-
743 PM EDT Tue Jul 16 2019
...A STRONG THUNDERSTORM WILL AFFECT WAYNE COUNTY...
At 742 PM EDT, a strong thunderstorm was located near Romulus, moving
east at 20 mph.
Winds in excess of 30 mph are possible with this storm.
This storm will be near...
Taylor and Greenfield Village around 800 PM EDT.
Dearborn and Wyandotte around 815 PM EDT.
Downtown Detroit around 830 PM EDT.
Belle Isle around 840 PM EDT.
Grosse Pointe around 845 PM EDT.
Other locations impacted by this storm include Melvindale, New
Boston, Harper Woods, Westland, Grosse Pointe Shores, Ecorse, Grosse
Pointe Woods, Woodhaven, Lincoln Park and Grosse Pointe Park.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
LAT...LON 4236 8288 4232 8306 4229 8309 4224 8313
4217 8313 4213 8312 4212 8352 4242 8352
4245 8285 4242 8285
TIME...MOT...LOC 2342Z 267DEG 17KT 4229 8335
TFThe national radar mosaic for the moment the first event began.
1 flash flood, 1 flood. Local standard time, as filed.
A quick 2 to 4 inches of rain fell causing flash flooding.
Flood waters took several hours to recede.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2019Every state in 2019This day in weather historyWarnings in Michigan, July 2019
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: 844882, 844881.