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Home Return to list Severe Thunderstorm Warning 0045 Issued by the Detroit / Pontiac Forecast Office
Action: New Issued At: 2026-05-18 16:00:25
605
WUUS53 KDTX 182100
SVRDTX
MIC099-147-182230-
/O.NEW.KDTX.SV.W.0045.260518T2100Z-260518T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Detroit/Pontiac MI
500 PM EDT Mon May 18 2026
The National Weather Service in Detroit/Pontiac has issued a
* Severe Thunderstorm Warning for...
Macomb County in southeastern Michigan...
St. Clair County in southeastern Michigan...
* Until 630 PM EDT.
* At 459 PM EDT, severe thunderstorms were located along a line
extending from near North Branch to near Livonia, moving northeast
at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Severe thunderstorms will be near...
Warren and Sterling Heights around 510 PM EDT.
Romeo around 520 PM EDT.
Clinton Township around 525 PM EDT.
St. Clair Shores, Mount Clemens, Capac, and Macomb Township around
530 PM EDT.
Armada around 535 PM EDT.
Yale around 540 PM EDT.
New Baltimore, Richmond, Memphis, and Emmett around 545 PM EDT.
Algonac around 610 PM EDT.
Other locations impacted by these severe thunderstorms include
Anchorville, North Street, Roseville, Shelby Township, Lynn Township,
Ray Center, Brockway, Utica, Washington, and Fort Gratiot.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4289 8247 4280 8248 4261 8255 4256 8271
4251 8271 4254 8276 4254 8281 4242 8286
4243 8288 4245 8287 4245 8308 4289 8310
4289 8299 4315 8300 4317 8250 4297 8242
TIME...MOT...LOC 2059Z 241DEG 28KT 4321 8330 4238 8327
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SF
Action: Continued Issued At: 2026-05-18 16:20:25
268
WWUS53 KDTX 182119
SVSDTX
Severe Weather Statement
National Weather Service Detroit/Pontiac MI
519 PM EDT Mon May 18 2026
MIC099-147-182230-
/O.CON.KDTX.SV.W.0045.000000T0000Z-260518T2230Z/
Macomb MI-St. Clair MI-
519 PM EDT Mon May 18 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR MACOMB AND ST. CLAIR COUNTIES...
At 519 PM EDT, severe thunderstorms were located along a line
extending from Brown City to near Imlay City to Warren, moving
northeast at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe storms will be near...
Warren, St. Clair Shores, Mount Clemens, Romeo, Capac, Sterling
Heights, Clinton Township, Armada, and Macomb Township around 525
PM EDT.
Richmond, Yale, Memphis, and Emmett around 530 PM EDT.
New Baltimore around 535 PM EDT.
Algonac and Lakeport around 550 PM EDT.
Port Huron, St. Clair, and Marysville around 555 PM EDT.
Other locations impacted by these severe thunderstorms include
Anchorville, North Street, Roseville, Shelby Township, Lynn Township,
Ray Center, Brockway, Utica, Washington, and Fort Gratiot.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4289 8247 4280 8248 4261 8255 4256 8271
4251 8271 4254 8276 4254 8281 4242 8286
4243 8288 4245 8287 4245 8308 4289 8310
4289 8299 4315 8300 4317 8250 4297 8242
TIME...MOT...LOC 2119Z 241DEG 40KT 4323 8298 4300 8301 4247 8301
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SF
Action: Continued Issued At: 2026-05-18 16:30:26
603
WWUS53 KDTX 182130
SVSDTX
Severe Weather Statement
National Weather Service Detroit/Pontiac MI
530 PM EDT Mon May 18 2026
MIC099-147-182230-
/O.CON.KDTX.SV.W.0045.000000T0000Z-260518T2230Z/
Macomb MI-St. Clair MI-
530 PM EDT Mon May 18 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR MACOMB AND ST. CLAIR COUNTIES...
At 529 PM EDT, severe thunderstorms were located along a line
extending from near Peck to Capac to Clinton Township, moving
northeast at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe storms will be near...
Mount Clemens, Richmond, Yale, Clinton Township, Armada, Memphis,
Emmett, and Macomb Township around 535 PM EDT.
New Baltimore around 540 PM EDT.
Lakeport around 555 PM EDT.
St. Clair and Marysville around 600 PM EDT.
Port Huron around 605 PM EDT.
Other locations impacted by these severe thunderstorms include
Anchorville, North Street, Roseville, Shelby Township, Lynn Township,
Ray Center, Brockway, Utica, Washington, and Fort Gratiot.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4289 8247 4280 8248 4261 8255 4256 8271
4251 8271 4254 8276 4254 8281 4242 8286
4243 8288 4245 8287 4245 8308 4289 8310
4289 8299 4315 8300 4317 8250 4297 8242
TIME...MOT...LOC 2129Z 242DEG 37KT 4328 8288 4303 8292 4257 8295
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SF
Action: Continued Issued At: 2026-05-18 16:50:57
321
WWUS53 KDTX 182150
SVSDTX
Severe Weather Statement
National Weather Service Detroit/Pontiac MI
550 PM EDT Mon May 18 2026
MIC099-147-182230-
/O.CON.KDTX.SV.W.0045.000000T0000Z-260518T2230Z/
Macomb MI-St. Clair MI-
550 PM EDT Mon May 18 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHEASTERN MACOMB AND ST. CLAIR COUNTIES...
At 550 PM EDT, severe thunderstorms were located along a line
extending from Lexington to near Emmett to near Marine City, moving
northeast at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe storms will be near...
St. Clair, Lakeport, and Marysville around 555 PM EDT.
Port Huron around 600 PM EDT.
Other locations impacted by these severe thunderstorms include
Anchorville, North Street, Adair, Lynn Township, Rattle Run,
Goodells, Brockway, Smiths Creek, Fair Haven, and Wadhams.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4289 8247 4280 8248 4261 8255 4256 8271
4262 8276 4261 8274 4263 8273 4264 8275
4263 8277 4289 8299 4315 8300 4317 8250
4297 8242
TIME...MOT...LOC 2149Z 220DEG 45KT 4329 8252 4294 8270 4274 8247
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
BT
Action: Continued Issued At: 2026-05-18 17:07:57
847
WWUS53 KDTX 182207
SVSDTX
Severe Weather Statement
National Weather Service Detroit/Pontiac MI
607 PM EDT Mon May 18 2026
MIC099-182215-
/O.CAN.KDTX.SV.W.0045.000000T0000Z-260518T2230Z/
Macomb MI-
607 PM EDT Mon May 18 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MACOMB COUNTY IS
CANCELLED...
The storms which prompted the warning have weakened and moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
southeastern Michigan.
&&
LAT...LON 4293 8246 4289 8247 4280 8248 4289 8274
4316 8280 4317 8250 4297 8242
TIME...MOT...LOC 2205Z 230DEG 41KT 4329 8242 4302 8250 4291 8236
$$
MIC147-182230-
/O.CON.KDTX.SV.W.0045.000000T0000Z-260518T2230Z/
St. Clair MI-
607 PM EDT Mon May 18 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHEASTERN ST. CLAIR COUNTY...
At 607 PM EDT, severe thunderstorms were located along and west of a
line extending from 6 miles east of Lexington to near Port Huron to
6 miles east of Marysville, moving northeast at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe thunderstorms will move offshore of northeastern St.
Clair County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4293 8246 4289 8247 4280 8248 4289 8274
4316 8280 4317 8250 4297 8242
TIME...MOT...LOC 2205Z 230DEG 41KT 4329 8242 4302 8250 4291 8236
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
BT
Action: Cancelled Issued At: 2026-05-18 17:07:57
847
WWUS53 KDTX 182207
SVSDTX
Severe Weather Statement
National Weather Service Detroit/Pontiac MI
607 PM EDT Mon May 18 2026
MIC099-182215-
/O.CAN.KDTX.SV.W.0045.000000T0000Z-260518T2230Z/
Macomb MI-
607 PM EDT Mon May 18 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MACOMB COUNTY IS
CANCELLED...
The storms which prompted the warning have weakened and moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
southeastern Michigan.
&&
LAT...LON 4293 8246 4289 8247 4280 8248 4289 8274
4316 8280 4317 8250 4297 8242
TIME...MOT...LOC 2205Z 230DEG 41KT 4329 8242 4302 8250 4291 8236
$$
MIC147-182230-
/O.CON.KDTX.SV.W.0045.000000T0000Z-260518T2230Z/
St. Clair MI-
607 PM EDT Mon May 18 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHEASTERN ST. CLAIR COUNTY...
At 607 PM EDT, severe thunderstorms were located along and west of a
line extending from 6 miles east of Lexington to near Port Huron to
6 miles east of Marysville, moving northeast at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
These severe thunderstorms will move offshore of northeastern St.
Clair County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4293 8246 4289 8247 4280 8248 4289 8274
4316 8280 4317 8250 4297 8242
TIME...MOT...LOC 2205Z 230DEG 41KT 4329 8242 4302 8250 4291 8236
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
BT
Action: Cancelled Issued At: 2026-05-18 17:15:58
248
WWUS53 KDTX 182215
SVSDTX
Severe Weather Statement
National Weather Service Detroit/Pontiac MI
615 PM EDT Mon May 18 2026
MIC147-182225-
/O.CAN.KDTX.SV.W.0045.000000T0000Z-260518T2230Z/
St. Clair MI-
615 PM EDT Mon May 18 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ST. CLAIR COUNTY
IS CANCELLED...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning has
been cancelled.
&&
LAT...LON 4293 8246 4289 8247 4280 8248 4289 8274
4316 8280 4317 8250 4297 8242
TIME...MOT...LOC 2214Z 241DEG 28KT 4332 8233 4305 8241 4294 8227
$$
BT
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