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Home Return to list Severe Thunderstorm Warning 0063 Issued by the Grand Rapids Forecast Office
Action: New Issued At: 2026-05-18 13:34:51
013
WUUS53 KGRR 181834
SVRGRR
MIC025-045-067-117-182000-
/O.NEW.KGRR.SV.W.0063.260518T1834Z-260518T2000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Rapids MI
234 PM EDT Mon May 18 2026
The National Weather Service in Grand Rapids has issued a
* Severe Thunderstorm Warning for...
Calhoun County in south central Michigan...
Ionia County in south central Michigan...
Eaton County in south central Michigan...
Montcalm County in central Michigan...
* Until 400 PM EDT.
* At 234 PM EDT, severe thunderstorms were located along a line
extending from near Walker to near Middleville to near Battle
Creek, moving northeast at 55 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Lansing... Ionia... Charlotte...
Albion... Greenville... Marshall...
Eaton Rapids... Portland... Stanton...
Grand Ledge... Belding... Potterville...
Lake Odessa... Howard City... Homer...
Saranac... Bellevue... Edmore...
Carson City... Lakeview...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is a DANGEROUS SITUATION. These storms are producing widespread
wind damage across southwest Michigan. SEEK SHELTER NOW inside a
sturdy structure and stay away from windows!
&&
LAT...LON 4208 8507 4277 8507 4277 8531 4329 8531
4330 8556 4347 8556 4346 8485 4277 8484
4277 8460 4242 8460 4242 8472 4207 8471
TIME...MOT...LOC 1831Z 226DEG 48KT 4310 8582 4267 8549 4220 8538
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...70 MPH
$$
CAS
Action: Continued Issued At: 2026-05-18 13:55:21
578
WWUS53 KGRR 181855
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
255 PM EDT Mon May 18 2026
MIC025-045-067-117-182000-
/O.CON.KGRR.SV.W.0063.000000T0000Z-260518T2000Z/
Calhoun MI-Ionia MI-Eaton MI-Montcalm MI-
255 PM EDT Mon May 18 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR CALHOUN...IONIA...EATON AND MONTCALM COUNTIES...
At 254 PM EDT, severe thunderstorms were located along a line
extending from 7 miles south of Howard City to 8 miles southwest of
Portland to 5 miles west of Homer, moving east at 75 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...ASOS. At 244 pm 74 mph winds were reported at Battle Creek
ASOS.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
Locations impacted include...
Lansing... Ionia... Charlotte...
Albion... Greenville... Marshall...
Eaton Rapids... Portland... Stanton...
Grand Ledge... Belding... Potterville...
Lake Odessa... Howard City... Homer...
Saranac... Bellevue... Edmore...
Carson City... Lakeview...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is a DANGEROUS SITUATION. These storms are producing widespread
wind damage across Calhoun, Eaton, Montcalm, and Ionia Counties.
SEEK SHELTER NOW inside a sturdy structure and stay away from
windows.
&&
LAT...LON 4208 8507 4277 8507 4277 8531 4329 8531
4330 8556 4347 8556 4346 8485 4277 8484
4277 8460 4242 8460 4242 8472 4207 8471
TIME...MOT...LOC 1854Z 259DEG 65KT 4328 8548 4276 8497 4212 8492
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...OBSERVED
MAX WIND GUST...70 MPH
$$
THOMAS
Action: Continued Issued At: 2026-05-18 14:19:52
417
WWUS53 KGRR 181919
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
319 PM EDT Mon May 18 2026
MIC025-045-067-117-182000-
/O.CON.KGRR.SV.W.0063.000000T0000Z-260518T2000Z/
Calhoun MI-Ionia MI-Eaton MI-Montcalm MI-
319 PM EDT Mon May 18 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR EASTERN CALHOUN...EASTERN IONIA...EATON AND MONTCALM COUNTIES...
At 319 PM EDT, severe thunderstorms were located along a line
extending from near Lakeview to 5 miles west of St. Johns to near
Litchfield, moving northeast at 55 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
Locations impacted include...
Lansing... Ionia... Charlotte...
Albion... Greenville... Marshall...
Eaton Rapids... Portland... Stanton...
Grand Ledge... Potterville... Howard City...
Homer... Edmore... Carson City...
Lakeview... Edgemont Park... Orleans...
Crystal... Sidney...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is a DANGEROUS SITUATION. These storms are producing widespread
wind damage across West and Southwest Michigan. SEEK SHELTER NOW
inside a sturdy structure and stay away from windows.
&&
LAT...LON 4208 8502 4276 8496 4295 8504 4322 8531
4329 8531 4330 8556 4347 8556 4346 8485
4277 8484 4277 8460 4242 8460 4242 8472
4207 8471
TIME...MOT...LOC 1919Z 225DEG 48KT 4346 8532 4297 8467 4206 8469
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...OBSERVED
MAX WIND GUST...70 MPH
$$
THOMAS
Action: Continued Issued At: 2026-05-18 14:28:52
697
WWUS53 KGRR 181928
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
328 PM EDT Mon May 18 2026
MIC025-045-067-117-182000-
/O.CON.KGRR.SV.W.0063.000000T0000Z-260518T2000Z/
Calhoun MI-Ionia MI-Eaton MI-Montcalm MI-
328 PM EDT Mon May 18 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM EDT
FOR EASTERN CALHOUN...EASTERN IONIA...EATON AND MONTCALM COUNTIES...
At 327 PM EDT, severe thunderstorms were located along a line
extending from near Lakeview to near St. Johns to 7 miles northeast
of Litchfield, moving northeast at 55 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
Locations impacted include...
Lansing... Charlotte... Albion...
Eaton Rapids... Portland... Stanton...
Grand Ledge... Potterville... Homer...
Edmore... Lakeview... Edgemont Park...
Crystal... Sidney... Marengo...
Brookfield... Dimondale... Sheridan...
Mulliken... Waverly...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is a DANGEROUS SITUATION. These storms are producing widespread
wind damage across West and Southwest Michigan. SEEK SHELTER NOW
inside a sturdy structure and stay away from windows.
&&
LAT...LON 4208 8491 4308 8492 4312 8511 4347 8533
4346 8485 4277 8487 4277 8460 4242 8460
4242 8472 4207 8471
TIME...MOT...LOC 1927Z 226DEG 48KT 4350 8527 4301 8462 4210 8464
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...OBSERVED
MAX WIND GUST...70 MPH
$$
THOMAS
Action: Cancelled Issued At: 2026-05-18 14:44:53
173
WWUS53 KGRR 181944
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
344 PM EDT Mon May 18 2026
MIC025-045-067-117-181952-
/O.CAN.KGRR.SV.W.0063.000000T0000Z-260518T2000Z/
Calhoun MI-Ionia MI-Eaton MI-Montcalm MI-
344 PM EDT Mon May 18 2026
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN CALHOUN...EASTERN
IONIA...EATON AND MONTCALM COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been cancelled. However, lightning is
still possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
south central and central Michigan.
LAT...LON 4208 8491 4308 8492 4312 8511 4347 8533
4346 8485 4277 8487 4277 8460 4242 8460
4242 8472 4207 8471
TIME...MOT...LOC 1940Z 226DEG 48KT 4363 8509 4314 8444 4223 8446
$$
THOMAS
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