Alert archive / Michigan / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 21, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at May 12, 2014, 2:43 PM EDT for 9 counties in Michigan. It was in force for 62 min. 2 reports 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
- May 12, 2014, 2:43 PM EDT (18:43 UTC)
- Expired
- May 12, 2014, 3:45 PM EDT
- In force
- 62 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Ionia County, MI, Isabella County, MI, Kent County, MI, Mecosta County, MI, Montcalm County, MI, Muskegon County, MI, Newaygo County, MI, Oceana County, MI, Ottawa County, MI
The radar
The Grand Rapids radar (KGRR), 60 km from the middle of the area, began a volume at 18:44 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 |
|---|---|---|---|
| May 12, 3:08 PM EDT | HAIL 0.5 | 2 Ene Alaska, MI | |
| May 12, 3:21 PM EDT | HAIL 0.25 | 3 Nnw Clarksville, MI |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 12, 2:41 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Detroit, MI (KDTX), launched 12:00Z, 6.7 hours before the alert went out and 188 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
- 1025 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 126 m²/s²
- 0-3 km storm-relative helicity
- 117 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
100
WUUS53 KGRR 121843
SVRGRR
MIC067-073-081-107-117-121-123-127-139-121945-
/O.NEW.KGRR.SV.W.0021.140512T1843Z-140512T1945Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
243 PM EDT MON MAY 12 2014
THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN IONIA COUNTY IN SOUTH CENTRAL MICHIGAN...
ISABELLA COUNTY IN CENTRAL MICHIGAN...
KENT COUNTY IN SOUTHWEST MICHIGAN...
MECOSTA COUNTY IN CENTRAL MICHIGAN...
MONTCALM COUNTY IN CENTRAL MICHIGAN...
MUSKEGON COUNTY IN WEST CENTRAL MICHIGAN...
NEWAYGO COUNTY IN WEST CENTRAL MICHIGAN...
OCEANA COUNTY IN WEST CENTRAL MICHIGAN...
OTTAWA COUNTY IN SOUTHWEST MICHIGAN...
* UNTIL 345 PM EDT
* AT 239 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM ELBRIDGE TO 61 MILES WEST OF HOFFMASTER STATE
PARK...AND MOVING EAST AT 75 MPH.
HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
ROOFS...SIDING AND TREES.
* LOCATIONS IMPACTED INCLUDE...
GRAND HAVEN... PENTWATER... NEWAYGO...
MUSKEGON... HOWARD CITY... GREENVILLE...
BIG RAPIDS... GRAND RAPIDS... MOUNT PLEASANT...
BEECHWOOD... HUDSONVILLE... COOPERSVILLE...
SHELBY... BITELY... FREMONT...
WHITE CLOUD... WHITEHALL... EDMORE...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
LARGE HAIL...DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND LIGHTNING
IS OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY. LIGHTNING
KILLS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.
&&
LAT...LON 4382 8642 4381 8460 4369 8460 4347 8477
4346 8484 4337 8484 4279 8531 4279 8622
4308 8626 4362 8655
TIME...MOT...LOC 1843Z 251DEG 65KT 4370 8611 4287 8733
HAIL...1.00IN
WIND...60MPH
$$
WDM3 follow-up statements
354
WWUS53 KGRR 121855
SVSGRR
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
255 PM EDT MON MAY 12 2014
MIC067-073-081-107-117-121-123-127-139-121945-
/O.CON.KGRR.SV.W.0021.000000T0000Z-140512T1945Z/
IONIA MI-ISABELLA MI-KENT MI-MECOSTA MI-MONTCALM MI-NEWAYGO MI-
OCEANA MI-MUSKEGON MI-OTTAWA MI-
255 PM EDT MON MAY 12 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR OTTAWA...
MUSKEGON...OCEANA...NEWAYGO...MONTCALM...MECOSTA...KENT...ISABELLA
AND NORTHWESTERN IONIA COUNTIES UNTIL 345 PM EDT...
AT 253 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM BITELY TO 45 MILES WEST OF ROSABELLE BEACH...AND
MOVING EAST AT 45 MPH.
HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
ROOFS...SIDING AND TREES.
LOCATIONS IMPACTED INCLUDE...
GRAND HAVEN... PENTWATER... NEWAYGO...
MUSKEGON... HOWARD CITY... GREENVILLE...
BIG RAPIDS... GRAND RAPIDS... MOUNT PLEASANT...
BEECHWOOD... HUDSONVILLE... COOPERSVILLE...
SHELBY... BITELY... FREMONT...
WHITE CLOUD... WHITEHALL... EDMORE...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
LARGE HAIL...DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND LIGHTNING
IS OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY. LIGHTNING
KILLS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.
&&
LAT...LON 4382 8642 4381 8460 4369 8460 4347 8477
4346 8484 4337 8484 4279 8531 4279 8622
4308 8626 4362 8655
TIME...MOT...LOC 1856Z 251DEG 65KT 4376 8579 4294 8703
HAIL...1.00IN
WIND...60MPH
$$
WDM897
WWUS53 KGRR 121923
SVSGRR
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
323 PM EDT MON MAY 12 2014
MIC067-081-121-127-139-121933-
/O.CAN.KGRR.SV.W.0021.000000T0000Z-140512T1945Z/
IONIA MI-KENT MI-OCEANA MI-MUSKEGON MI-OTTAWA MI-
323 PM EDT MON MAY 12 2014
...THE SEVERE THUNDERSTORM WARNING FOR OTTAWA...MUSKEGON...OCEANA...
KENT AND NORTHWESTERN IONIA COUNTIES IS CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE
WARNING AREA.
LAT...LON 4382 8604 4381 8460 4368 8460 4347 8477
4346 8484 4336 8484 4331 8489 4329 8604
TIME...MOT...LOC 1923Z 264DEG 43KT 4379 8577 4340 8581
4306 8615
$$
MIC073-107-117-123-121945-
/O.CON.KGRR.SV.W.0021.000000T0000Z-140512T1945Z/
ISABELLA MI-MECOSTA MI-MONTCALM MI-NEWAYGO MI-
323 PM EDT MON MAY 12 2014
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NEWAYGO...
NORTHERN MONTCALM...MECOSTA AND ISABELLA COUNTIES UNTIL 345 PM EDT...
AT 319 PM EDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM LILLEY TO BISHOP TO GRAND HAVEN...AND MOVING EAST AT
45 MPH.
HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
ROOFS...SIDING AND TREES.
LOCATIONS IMPACTED INCLUDE...
NEWAYGO... HOWARD CITY... BIG RAPIDS...
MOUNT PLEASANT... BITELY... FREMONT...
WHITE CLOUD... EDMORE... BARRYTON...
MORLEY... MECOSTA... ROSEBUSH...
WEIDMAN... NEWYAGO STATE PARK... GOODWELL TWP...
ASHLAND TWP... ENSLEY TWP... TROY TWP...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
LARGE HAIL...DAMAGING WINDS AND CONTINUOUS CLOUD TO GROUND LIGHTNING
IS OCCURRING WITH THESE STORMS. MOVE INDOORS IMMEDIATELY. LIGHTNING
KILLS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO
BE STRUCK BY LIGHTNING.
&&
LAT...LON 4382 8604 4381 8460 4368 8460 4347 8477
4346 8484 4336 8484 4331 8489 4329 8604
TIME...MOT...LOC 1923Z 264DEG 43KT 4379 8577 4340 8581
4306 8615
HAIL...1.00IN
WIND...60MPH
$$
WDM741
WWUS53 KGRR 121945
SVSGRR
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
345 PM EDT MON MAY 12 2014
MIC073-107-117-123-121955-
/O.EXP.KGRR.SV.W.0021.000000T0000Z-140512T1945Z/
ISABELLA MI-MECOSTA MI-MONTCALM MI-NEWAYGO MI-
345 PM EDT MON MAY 12 2014
...THE SEVERE THUNDERSTORM WARNING FOR NEWAYGO...NORTHERN MONTCALM...
MECOSTA AND ISABELLA COUNTIES HAS EXPIRED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY. HOWEVER...GUSTY WINDS ARE STILL POSSIBLE WITH THESE
THUNDERSTORMS.
LAT...LON 4382 8604 4381 8460 4368 8460 4347 8477
4346 8484 4336 8484 4331 8489 4329 8604
TIME...MOT...LOC 1945Z 264DEG 43KT 4381 8540 4342 8545
4309 8579
$$
WDMThe office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 6:07 AM EDT | Special Weather Statement | GRR | Lake, Mason, Muskegon, Newaygo, Oceana | 113 min |
| May 12, 6:29 AM EDT | Special Weather Statement | GRR | Barry, Kent, Ottawa | 91 min |
| May 12, 7:34 AM EDT | Special Weather Statement | GRR | Barry, Eaton, Ionia, Kent, Lake, Mason and 4 more | 56 min |
| May 12, 8:29 AM EDT | Special Weather Statement | GRR | Allegan, Barry, Calhoun, Clare, Clinton, Eaton and 17 more | 46 min |
| May 12, 9:38 AM EDT | Special Weather Statement | GRR | Clare, Clinton, Gratiot, Ingham, Ionia, Isabella and 9 more | 52 min |
| May 12, 11:46 AM EDT | Special Weather Statement | GRR | Allegan, Barry, Ionia, Kalamazoo, Kent, Ottawa and 1 more | 59 min |
| May 12, 1:55 PM EDT | Special Marine Warning | GRR | 110 min | |
| May 12, 2:30 PM EDT | Special Weather Statement | GRR | Clare, Gratiot, Ionia, Isabella, Kent, Lake and 7 more | 3 hr |
| May 12, 2:46 PM EDT | Severe Thunderstorm Warning | GRR | Ingham, Jackson | 29 min |
| May 12, 3:26 PM EDT | Severe Thunderstorm Warning | GRR | Ionia | 49 min |
| May 12, 3:40 PM EDT | Severe Thunderstorm Warning | GRR | Ingham, Jackson | 50 min |
| May 12, 3:55 PM EDT | Severe Thunderstorm Warning | GRR | Barry, Eaton | 65 min |
| May 12, 5:09 PM EDT | Severe Thunderstorm Warning | GRR | Ingham | 51 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2014Every severe thunderstorm warning in 2014
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.