Alert archive / Michigan / Tornado Warnings in 2018
Tornado Warning 3, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this tornado warning at Sep 1, 2018, 7:53 PM EDT for Mecosta County, Michigan. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 1, 2018, 7:53 PM EDT (23:53 UTC)
- Expired
- Sep 1, 2018, 8:30 PM EDT
- In force
- 37 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Mecosta County, MI
The radar
The Grand Rapids radar (KGRR), 79 km from the middle of the area, began a volume at 23:54 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 11.9 hours before the alert went out and 171 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 214 J/kg
- Mixed-layer CIN
- -143 J/kg
- Mixed-layer LCL
- 1058 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- -12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
110
WFUS53 KGRR 012353
TORGRR
MIC107-020030-
/O.NEW.KGRR.TO.W.0003.180901T2353Z-180902T0030Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Grand Rapids MI
753 PM EDT SAT SEP 1 2018
The National Weather Service in Grand Rapids has issued a
* Tornado Warning for...
Southeastern Mecosta County in central Michigan...
* Until 830 PM EDT.
* At 752 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Lakeview, or 17 miles southeast of Big Rapids,
moving east at 20 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Sylvester around 800 PM EDT.
Mecosta around 805 PM EDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4347 8509 4347 8538 4368 8538 4369 8509
TIME...MOT...LOC 2352Z 266DEG 19KT 4348 8532
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
DUKE2 follow-up statements
396
WWUS53 KGRR 020013
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
813 PM EDT SAT SEP 1 2018
MIC107-020030-
/O.CON.KGRR.TO.W.0003.000000T0000Z-180902T0030Z/
Mecosta MI-
813 PM EDT SAT SEP 1 2018
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM EDT FOR
SOUTHEASTERN MECOSTA COUNTY...
At 813 PM EDT, a severe thunderstorm capable of producing a tornado
was located 6 miles northeast of Lakeview, or 14 miles north of
Stanton, moving east at 20 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornadic thunderstorm will remain over mainly rural areas of
southeastern Mecosta County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4347 8509 4347 8520 4351 8517 4353 8509
TIME...MOT...LOC 0013Z 266DEG 19KT 4349 8516
TORNADO...RADAR INDICATED
HAIL...0.00IN
$$
LAURENS648
WWUS53 KGRR 020022
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
822 PM EDT SAT SEP 1 2018
MIC107-020031-
/O.EXP.KGRR.TO.W.0003.000000T0000Z-180902T0030Z/
Mecosta MI-
822 PM EDT SAT SEP 1 2018
...THE TORNADO WARNING FOR SOUTHEASTERN MECOSTA COUNTY WILL EXPIRE AT
830 PM EDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Grand Rapids.
LAT...LON 4347 8509 4347 8520 4351 8517 4353 8509
TIME...MOT...LOC 0021Z 266DEG 19KT 4349 8510
$$
LAURENSThe office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 9:04 AM EDT | Special Weather Statement | GRR | Mason, Muskegon, Oceana | 56 min |
| Sep 1, 9:59 AM EDT | Special Weather Statement | GRR | Muskegon, Oceana, Ottawa | 61 min |
| Sep 1, 11:07 AM EDT | Areal Flood Advisory | GRR | Muskegon | 6 hr |
| Sep 1, 12:43 PM EDT | Flood Watch | GRR | Allegan, Barry, Calhoun, Clare, Clinton, Eaton and 17 more | 18 hr |
| Sep 1, 1:58 PM EDT | Special Weather Statement | GRR | Barry, Eaton | 2 hr |
| Sep 1, 2:55 PM EDT | Special Weather Statement | GRR | Jackson | 50 min |
| Sep 1, 6:01 PM EDT | Special Weather Statement | GRR | Calhoun | 44 min |
| Sep 1, 6:28 PM EDT | Special Weather Statement | GRR | Kalamazoo | 47 min |
| Sep 1, 6:34 PM EDT | Severe Thunderstorm Warning | GRR | Allegan, Barry, Kalamazoo | 41 min |
| Sep 1, 6:47 PM EDT | Special Weather Statement | GRR | Jackson | 88 min |
| Sep 1, 6:55 PM EDT | Special Weather Statement | GRR | Ingham | 65 min |
| Sep 1, 6:56 PM EDT | Tornado Warning | GRR | Barry, Kalamazoo | 20 min |
| Sep 1, 7:21 PM EDT | Severe Thunderstorm Warning | GRR | Calhoun | 54 min |
| Sep 1, 7:27 PM EDT | Tornado Warning | GRR | Calhoun | 48 min |
| Sep 1, 7:39 PM EDT | Severe Thunderstorm Warning | GRR | Ingham | 29 min |
| Sep 1, 7:48 PM EDT | Severe Thunderstorm Warning | GRR | Jackson | 42 min |
Nearby
Tornado Warnings in Michigan, 2018Every tornado warning in 2018Tornadoes in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.