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Severe Thunderstorm Warning 0064
Issued by the Grand Rapids Forecast Office

Action Issued Starts Expiration
New 2026-05-18 14:00:37 2026-05-18 13:59:00 2026-05-18 14:45:00
Continued 2026-05-18 14:11:22 2026-05-18 14:45:00
Continued 2026-05-18 14:22:22 2026-05-18 14:45:00
Cancelled 2026-05-18 14:22:22 2026-05-18 14:45:00
Cancelled 2026-05-18 14:35:53 2026-05-18 14:45:00
Continued 2026-05-18 14:35:53 2026-05-18 14:45:00


Action: New
Issued At: 2026-05-18 14:00:37

796 
WUUS53 KGRR 181859
SVRGRR
MIC037-045-065-067-181945-
/O.NEW.KGRR.SV.W.0064.260518T1859Z-260518T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Grand Rapids MI
259 PM EDT Mon May 18 2026

The National Weather Service in Grand Rapids has issued a

* Severe Thunderstorm Warning for...
  Northwestern Ingham County in south central Michigan...
  Southeastern Ionia County in south central Michigan...
  Clinton County in south central Michigan...
  Northern Eaton County in south central Michigan...

* Until 345 PM EDT.

* At 259 PM EDT, severe thunderstorms were located along a line
  extending from 6 miles southwest of Portland to 5 miles northwest
  of Charlotte, moving northeast at 60 mph.

  THESE ARE DESTRUCTIVE STORMS FOR LANSING AND THE CAPITAL REGION.

  HAZARD...80 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be heavily damaged. Expect 
           considerable damage to roofs, windows, and vehicles. 
           Extensive tree damage and power outages are likely.

* Locations impacted include...
  Lansing...             Charlotte...           Mason...
  St. Johns...           Portland...            East Lansing...
  Grand Ledge...         Potterville...         Elsie...
  Edgemont Park...       DeWitt...              Lansing Airport...
  Eureka...              Ovid...                Dimondale...
  Fowler...              Sebewa...              Westphalia...
  Lyons...               Vermontville...
        

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. These storms have the potential to cause
serious injury and significant property damage.

&&

LAT...LON 4252 8500 4278 8507 4293 8514 4312 8446
      4312 8437 4260 8437
TIME...MOT...LOC 1858Z 232DEG 51KT 4283 8501 4263 8491 

THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...80 MPH

$$

CAS


Action: Continued
Issued At: 2026-05-18 14:11:22

131 
WWUS53 KGRR 181910
SVSGRR

Severe Weather Statement
National Weather Service Grand Rapids MI
310 PM EDT Mon May 18 2026

MIC037-045-065-067-181945-
/O.CON.KGRR.SV.W.0064.000000T0000Z-260518T1945Z/
Ingham MI-Ionia MI-Clinton MI-Eaton MI-
310 PM EDT Mon May 18 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR NORTHWESTERN INGHAM...SOUTHEASTERN IONIA...CLINTON AND NORTHERN
EATON COUNTIES...

At 310 PM EDT, severe thunderstorms were located along a line
extending from near Portland to near Grand Ledge, moving northeast at
60 mph.

THESE ARE DESTRUCTIVE STORMS FOR LANSING AND THE CAPITAL REGION.

HAZARD...80 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. 
         Extensive tree damage and power outages are likely.

Locations impacted include...
Lansing...             Charlotte...           Mason...
St. Johns...           Portland...            East Lansing...
Grand Ledge...         Potterville...         Elsie...
Edgemont Park...       DeWitt...              Capital Region Inter...
Eureka...              Ovid...                Dimondale...
Fowler...              Sebewa...              Westphalia...
Lyons...               Vermontville...        

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. These storms have the potential to cause
serious injury and significant property damage.

&&

LAT...LON 4252 8500 4278 8507 4293 8514 4312 8446
      4312 8437 4260 8437
TIME...MOT...LOC 1910Z 232DEG 51KT 4291 8487 4271 8477 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...80 MPH

$$

THOMAS


Action: Continued
Issued At: 2026-05-18 14:22:22

463 
WWUS53 KGRR 181922
SVSGRR

Severe Weather Statement
National Weather Service Grand Rapids MI
322 PM EDT Mon May 18 2026

MIC067-181930-
/O.CAN.KGRR.SV.W.0064.000000T0000Z-260518T1945Z/
Ionia MI-
322 PM EDT Mon May 18 2026

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN IONIA COUNTY IS
CANCELLED...

Winds in excess of 80 mph have moved out of Ionia County. Winds to 
70 mph remain possible through 4 PM and a Severe Thunderstorm 
Warning Remains In Effect.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
south central and central Michigan.

LAT...LON 4255 8483 4296 8484 4312 8446 4312 8437
      4260 8437
TIME...MOT...LOC 1920Z 232DEG 51KT 4299 8473 4279 8463 

$$

MIC037-045-065-181945-
/O.CON.KGRR.SV.W.0064.000000T0000Z-260518T1945Z/
Ingham MI-Clinton MI-Eaton MI-
322 PM EDT Mon May 18 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR NORTHWESTERN INGHAM...CLINTON AND NORTHEASTERN EATON COUNTIES...

At 320 PM EDT, severe thunderstorms were located along a line
extending from 8 miles west of St. Johns to near Capital Region
International Airport, moving northeast at 60 mph.

THESE ARE DESTRUCTIVE STORMS FOR LANSING AND THE CAPITAL REGION.

HAZARD...80 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. 
         Extensive tree damage and power outages are likely.

Locations impacted include...
Lansing...             Charlotte...           Mason...
St. Johns...           East Lansing...        Grand Ledge...
Potterville...         Elsie...               Edgemont Park...
DeWitt...              Capital Region Inter...Ovid...
Dimondale...           Fowler...              Westphalia...
Waverly...             Eagle...               Wacousta...
Okemos...              Bath...                

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. These storms have the potential to cause
serious injury and significant property damage.

&&

LAT...LON 4255 8483 4296 8484 4312 8446 4312 8437
      4260 8437
TIME...MOT...LOC 1920Z 232DEG 51KT 4299 8473 4279 8463 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...80 MPH

$$

THOMAS


Action: Cancelled
Issued At: 2026-05-18 14:22:22

463 
WWUS53 KGRR 181922
SVSGRR

Severe Weather Statement
National Weather Service Grand Rapids MI
322 PM EDT Mon May 18 2026

MIC067-181930-
/O.CAN.KGRR.SV.W.0064.000000T0000Z-260518T1945Z/
Ionia MI-
322 PM EDT Mon May 18 2026

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN IONIA COUNTY IS
CANCELLED...

Winds in excess of 80 mph have moved out of Ionia County. Winds to 
70 mph remain possible through 4 PM and a Severe Thunderstorm 
Warning Remains In Effect.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
south central and central Michigan.

LAT...LON 4255 8483 4296 8484 4312 8446 4312 8437
      4260 8437
TIME...MOT...LOC 1920Z 232DEG 51KT 4299 8473 4279 8463 

$$

MIC037-045-065-181945-
/O.CON.KGRR.SV.W.0064.000000T0000Z-260518T1945Z/
Ingham MI-Clinton MI-Eaton MI-
322 PM EDT Mon May 18 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR NORTHWESTERN INGHAM...CLINTON AND NORTHEASTERN EATON COUNTIES...

At 320 PM EDT, severe thunderstorms were located along a line
extending from 8 miles west of St. Johns to near Capital Region
International Airport, moving northeast at 60 mph.

THESE ARE DESTRUCTIVE STORMS FOR LANSING AND THE CAPITAL REGION.

HAZARD...80 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. 
         Extensive tree damage and power outages are likely.

Locations impacted include...
Lansing...             Charlotte...           Mason...
St. Johns...           East Lansing...        Grand Ledge...
Potterville...         Elsie...               Edgemont Park...
DeWitt...              Capital Region Inter...Ovid...
Dimondale...           Fowler...              Westphalia...
Waverly...             Eagle...               Wacousta...
Okemos...              Bath...                

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. These storms have the potential to cause
serious injury and significant property damage.

&&

LAT...LON 4255 8483 4296 8484 4312 8446 4312 8437
      4260 8437
TIME...MOT...LOC 1920Z 232DEG 51KT 4299 8473 4279 8463 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...80 MPH

$$

THOMAS


Action: Cancelled
Issued At: 2026-05-18 14:35:53

843 
WWUS53 KGRR 181935
SVSGRR

Severe Weather Statement
National Weather Service Grand Rapids MI
335 PM EDT Mon May 18 2026

MIC045-181943-
/O.CAN.KGRR.SV.W.0064.000000T0000Z-260518T1945Z/
Eaton MI-
335 PM EDT Mon May 18 2026

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN EATON COUNTY IS
CANCELLED...

Winds in excess of 80 mph have exited Eaton County. However winds in 
excess of 60 mph are possible for eastern Eaton County until 4 PM. A 
Severe Thunderstorm Warning remains in effect.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
south central and central Michigan.

LAT...LON 4258 8460 4298 8460 4312 8446 4312 8437
      4260 8437
TIME...MOT...LOC 1933Z 247DEG 36KT 4310 8456 4292 8447 4269 8443 

$$

MIC037-065-181945-
/O.CON.KGRR.SV.W.0064.000000T0000Z-260518T1945Z/
Ingham MI-Clinton MI-
335 PM EDT Mon May 18 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR NORTHWESTERN INGHAM AND EASTERN CLINTON COUNTIES...

At 333 PM EDT, severe thunderstorms were located along a line
extending from 7 miles north of St. Johns to 6 miles west of
Laingsburg to near East Lansing, moving east at 40 mph.

THESE ARE DESTRUCTIVE STORMS FOR LANSING AND THE CAPITAL REGION.

HAZARD...80 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. 
         Extensive tree damage and power outages are likely.

Locations impacted include...
Lansing...             Mason...               St. Johns...
East Lansing...        Elsie...               Edgemont Park...
DeWitt...              Capital Region Inter...Ovid...
Okemos...              Bath...                Holt...
Haslett...             

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. These storms have the potential to cause
serious injury and significant property damage.

&&

LAT...LON 4258 8460 4298 8460 4312 8446 4312 8437
      4260 8437
TIME...MOT...LOC 1933Z 247DEG 36KT 4310 8456 4292 8447 4269 8443 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...80 MPH

$$

THOMAS


Action: Continued
Issued At: 2026-05-18 14:35:53

843 
WWUS53 KGRR 181935
SVSGRR

Severe Weather Statement
National Weather Service Grand Rapids MI
335 PM EDT Mon May 18 2026

MIC045-181943-
/O.CAN.KGRR.SV.W.0064.000000T0000Z-260518T1945Z/
Eaton MI-
335 PM EDT Mon May 18 2026

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN EATON COUNTY IS
CANCELLED...

Winds in excess of 80 mph have exited Eaton County. However winds in 
excess of 60 mph are possible for eastern Eaton County until 4 PM. A 
Severe Thunderstorm Warning remains in effect.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
south central and central Michigan.

LAT...LON 4258 8460 4298 8460 4312 8446 4312 8437
      4260 8437
TIME...MOT...LOC 1933Z 247DEG 36KT 4310 8456 4292 8447 4269 8443 

$$

MIC037-065-181945-
/O.CON.KGRR.SV.W.0064.000000T0000Z-260518T1945Z/
Ingham MI-Clinton MI-
335 PM EDT Mon May 18 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR NORTHWESTERN INGHAM AND EASTERN CLINTON COUNTIES...

At 333 PM EDT, severe thunderstorms were located along a line
extending from 7 miles north of St. Johns to 6 miles west of
Laingsburg to near East Lansing, moving east at 40 mph.

THESE ARE DESTRUCTIVE STORMS FOR LANSING AND THE CAPITAL REGION.

HAZARD...80 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. 
         Extensive tree damage and power outages are likely.

Locations impacted include...
Lansing...             Mason...               St. Johns...
East Lansing...        Elsie...               Edgemont Park...
DeWitt...              Capital Region Inter...Ovid...
Okemos...              Bath...                Holt...
Haslett...             

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. These storms have the potential to cause
serious injury and significant property damage.

&&

LAT...LON 4258 8460 4298 8460 4312 8446 4312 8437
      4260 8437
TIME...MOT...LOC 1933Z 247DEG 36KT 4310 8456 4292 8447 4269 8443 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...80 MPH

$$

THOMAS



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