Alert archive / Michigan / Tornado Warnings in 2018
Tornado Warning 1, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this tornado warning at Sep 1, 2018, 6:56 PM EDT for Barry County, Kalamazoo County, Michigan. It was in force for 20 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Sep 1, 2018, 6:56 PM EDT (22:56 UTC)
- Expired
- Sep 1, 2018, 7:16 PM EDT
- In force
- 20 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Barry County, MI, Kalamazoo County, MI
The radar
The Grand Rapids radar (KGRR), 54 km from the middle of the area, began a volume at 22:58 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 1, 7:08 PM EDT | TORNADO | 4 Wsw Hickory Corners, MI | EF-0 TORNADO WITH 75 MPH WINDS WAS CONFIRMED AT THE NORTH END OF LITTLE LONG LAKE. THE PATH WAS ESTIMATED AT 0.4 MILES LONG AND 100 YARDS WIDE. SEVERAL TREES AND LIMBS WERE SNAPPED. A HOUSE WAS DAMAGED BY FALLING TREES. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 10.9 hours before the alert went out and 174 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.
735
WFUS53 KGRR 012256
TORGRR
MIC015-077-012330-
/O.NEW.KGRR.TO.W.0001.180901T2256Z-180901T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Grand Rapids MI
656 PM EDT SAT SEP 1 2018
The National Weather Service in Grand Rapids has issued a
* Tornado Warning for...
Southwestern Barry County in southwestern Michigan...
Northeastern Kalamazoo County in southwestern Michigan...
* Until 730 PM EDT.
* At 655 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Richland, or 6 miles southeast of Plainwell,
moving east at 25 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...
Richland around 705 PM EDT.
South Gull Lake, Midland Park and Hickory Corners around 715 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 4238 8561 4242 8556 4242 8554 4244 8554
4245 8553 4246 8531 4235 8538
TIME...MOT...LOC 2255Z 270DEG 20KT 4240 8554
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
CAS2 follow-up statements
075
WWUS53 KGRR 012309
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
709 PM EDT SAT SEP 1 2018
MIC015-077-012330-
/O.CON.KGRR.TO.W.0001.000000T0000Z-180901T2330Z/
Barry MI-Kalamazoo MI-
709 PM EDT SAT SEP 1 2018
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM EDT FOR
SOUTHWESTERN BARRY AND NORTH CENTRAL KALAMAZOO COUNTIES...
At 709 PM EDT, a severe thunderstorm capable of producing a tornado
was located near South Gull Lake, or 10 miles east of Plainwell,
moving northeast at 25 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Hickory Corners around 720 PM EDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4239 8547 4242 8551 4245 8551 4246 8531
4238 8537
TIME...MOT...LOC 2309Z 242DEG 20KT 4243 8544
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
LAURENS429
WWUS53 KGRR 012316
SVSGRR
Severe Weather Statement
National Weather Service Grand Rapids MI
716 PM EDT SAT SEP 1 2018
MIC015-077-012326-
/O.CAN.KGRR.TO.W.0001.000000T0000Z-180901T2330Z/
Barry MI-Kalamazoo MI-
716 PM EDT SAT SEP 1 2018
...THE TORNADO WARNING FOR SOUTHWESTERN BARRY AND NORTH CENTRAL
KALAMAZOO COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Grand Rapids.
LAT...LON 4239 8547 4242 8551 4245 8551 4246 8531
4238 8537
TIME...MOT...LOC 2315Z 270DEG 20KT 4243 8538
$$
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, 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 |
| Sep 1, 7:53 PM EDT | Tornado Warning | GRR | Mecosta | 37 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.