Alert archive / Michigan / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 21, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at May 2, 2008, 9:56 PM EDT for 6 counties in Michigan. It was in force for 49 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
- May 2, 2008, 9:56 PM EDT (01:56 UTC)
- Expired
- May 2, 2008, 10:45 PM EDT
- In force
- 49 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
Counties Allegan County, MI, Muskegon County, MI, Newaygo County, MI, Oceana County, MI, Ottawa County, MI, Van Buren County, MI
The radar
The Grand Rapids radar (KGRR), 59 km from the middle of the area, began a volume at 01:57 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 2, 9:13 PM EDT | Tornado Watch | SPC | 3 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 1.9 hours before the alert went out and 215 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 675 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 282 m²/s²
- 0-3 km storm-relative helicity
- 274 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS53 KGRR 030158
SVRGRR
MIC005-121-123-127-139-159-030245-
/O.NEW.KGRR.SV.W.0021.080503T0156Z-080503T0245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
956 PM EDT FRI MAY 2 2008
THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN ALLEGAN COUNTY IN SOUTHWEST MICHIGAN
OTTAWA COUNTY IN SOUTHWEST MICHIGAN
EXTREME NORTHWESTERN VAN BUREN COUNTY IN SOUTHWEST MICHIGAN
MUSKEGON COUNTY IN WEST CENTRAL MICHIGAN
EXTREME WEST CENTRAL NEWAYGO COUNTY IN WEST CENTRAL MICHIGAN
SOUTHERN OCEANA COUNTY IN WEST CENTRAL MICHIGAN
* UNTIL 1045 PM EDT
* AT 953 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM 19 MILES WEST OF MUSKEGON TO 15 MILES WEST OF GLENN...AND
MOVING NORTHEAST AT 60 MPH.
* LOCATIONS WITHIN THE WARNED AREA INCLUDE...
GLENN... PULLMAN... FENNVILLE...
SAUGATUCK... WHITEHALL... MUSKEGON...
HOLLAND ST PARK... ALLEGAN... GRAND HAVEN...
PORT SHELDON... LAKEWOOD CLUB... HOLLAND...
ROTHBURY... FRUITPORT... TWIN LAKE...
SHELBY... ZEELAND... NUNICA...
DOPPLER RADAR WAS INDICATING SOME ROTATION WITHIN THESE STORMS.
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES.
TORNADOES CAN DEVELOP VERY RAPIDLY SO BE ALERT TO CHANGING
CONDITIONS.
LAT...LON 4364 8654 4365 8603 4331 8603 4330 8597
4242 8583 4242 8628 4269 8623 4295 8624
4313 8629
TIME...MOT...LOC 0156Z 223DEG 52KT 4321 8659 4253 8649
$$
COBB2 follow-up statements
000
WWUS53 KGRR 030220
SVSGRR
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1019 PM EDT FRI MAY 2 2008
MIC005-121-123-127-139-159-030245-
/O.CON.KGRR.SV.W.0021.000000T0000Z-080503T0245Z/
OCEANA MI-NEWAYGO MI-MUSKEGON MI-ALLEGAN MI-VAN BUREN MI-OTTAWA MI-
1019 PM EDT FRI MAY 2 2008
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM EDT
FOR OTTAWA...EXTREME NORTH CENTRAL VAN BUREN...WESTERN ALLEGAN...
MUSKEGON...EXTREME SOUTHWESTERN NEWAYGO AND SOUTHEASTERN OCEANA
COUNTIES...
AT 1015 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING
WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE
EXTENDING FROM WHITEHALL TO HOLLAND ST PARK...AND MOVING NORTHEAST AT
60 MPH.
* LOCATIONS WITHIN THE WARNED AREA INCLUDE...
HOLLAND ST PARK... PORT SHELDON...
HOFFMASTER STATE PARK... DALTON...
ROOSEVELT PARK... MONTAGUE... NORTON SHORES...
WHITEHALL... MUSKEGON... GANGES...
OVAL BEACH... CASTLE PARK...
SAUGATUCK STATE PARK... KIBBIE...
DOUGLAS... PULLMAN... GLENN...
FENNVILLE...
DOPPLER RADAR CONTINUED TO INDICATE ROTATION WITHIN THESE STORMS.
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES.
TORNADOES CAN DEVELOP VERY RAPIDLY SO BE ALERT TO CHANGING
CONDITIONS.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM EDT SATURDAY MORNING
FOR SOUTHWESTERN MICHIGAN.
LAT...LON 4365 8603 4331 8603 4330 8597 4242 8583
4242 8628 4269 8623 4295 8624 4353 8641
TIME...MOT...LOC 0219Z 223DEG 52KT 4345 8628 4277 8618
$$
LAURENS000
WWUS53 KGRR 030247
SVSGRR
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
1048 PM EDT FRI MAY 2 2008
MIC005-121-123-127-139-159-030258-
/O.EXP.KGRR.SV.W.0021.000000T0000Z-080503T0245Z/
OCEANA MI-NEWAYGO MI-MUSKEGON MI-ALLEGAN MI-VAN BUREN MI-OTTAWA MI-
1048 PM EDT FRI MAY 2 2008
...THE SEVERE THUNDERSTORM WARNING FOR OTTAWA...EXTREME NORTH CENTRAL
VAN BUREN...WESTERN ALLEGAN...MUSKEGON...EXTREME SOUTHWESTERN NEWAYGO
AND SOUTHEASTERN OCEANA COUNTIES HAS EXPIRED...
SEVERE WEATHER HAD WEAKENED OR MOVED OUT OF THE AREA. STAY TUNED FOR
THE LATEST WEATHER INFORMATION.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM EDT SATURDAY MORNING
FOR SOUTHWESTERN MICHIGAN.
LAT...LON 4365 8603 4331 8603 4330 8597 4242 8583
4242 8628 4269 8623 4295 8624 4353 8641
TIME...MOT...LOC 0220Z 180DEG 0KT 4329 8664 4284 8593
$$
LAURENSThe office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 2, 9:31 PM EDT | Special Weather Statement | GRR | Allegan, Barry, Calhoun, Kalamazoo, Kent, Mecosta and 5 more | 89 min |
| May 2, 10:51 PM EDT | Special Weather Statement | GRR | Barry, Kalamazoo, Kent, Lake, Mecosta, Montcalm and 2 more | 54 min |
| May 2, 11:44 PM EDT | Special Weather Statement | GRR | Barry, Eaton, Gratiot, Ionia, Isabella, Mecosta and 1 more | 61 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2008Every severe thunderstorm warning in 2008
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.