Alert archive / Michigan / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 49, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at Jul 17, 2012, 7:42 PM EDT for Lake County, Osceola County, Michigan. It was in force for 48 min. 3 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
- Jul 17, 2012, 7:42 PM EDT (23:42 UTC)
- Expired
- Jul 17, 2012, 8:30 PM EDT
- In force
- 48 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Lake County, MI, Osceola County, MI
The radar
The NCL Michigan radar (KAPX), 114 km from the middle of the area, began a volume at 23:45 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 |
|---|---|---|---|
| Jul 17, 8:00 PM EDT | TSTM WND DMG | Hersey, MI | 5 INCH LIMBS DOWN. |
| Jul 17, 8:00 PM EDT | TSTM WND GST 54 | Hersey, MI | |
| Jul 17, 8:00 PM EDT | HAIL 0.5 | 2 S Hersey, MI |
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, 11.7 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
- 838 J/kg
- Mixed-layer CIN
- -190 J/kg
- Mixed-layer LCL
- 1341 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -61 m²/s²
- 0-3 km storm-relative helicity
- -52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
875
WUUS53 KGRR 172342
SVRGRR
MIC085-133-180030-
/O.NEW.KGRR.SV.W.0049.120717T2342Z-120718T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GRAND RAPIDS MI
742 PM EDT TUE JUL 17 2012
THE NATIONAL WEATHER SERVICE IN GRAND RAPIDS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN LAKE COUNTY IN WEST CENTRAL MICHIGAN...
OSCEOLA COUNTY IN CENTRAL MICHIGAN...
* UNTIL 830 PM EDT
* AT 737 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE
TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 7
MILES WEST OF REED CITY..AND MOVING EAST AT 30 MPH.
* LOCATIONS IMPACTED INCLUDE...
REED CITY... LEROY... MARION...
EVART... HARTWICK TWP... MIDDLE BRANCH TWP...
SYLVAN TWP... ORIENT TWP... SEARS...
DIGHTON... TUSTIN... HERSEY...
PINORA TWP... NIRVANA... CHASE...
PARK LAKE... HIGHLAND... INA...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS CAN PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES
PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT
DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
FOR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE
ROAD.
&&
LAT...LON 4416 8508 4382 8509 4382 8575 4397 8574
4397 8556 4417 8556
TIME...MOT...LOC 2342Z 275DEG 24KT 4387 8561
WIND...HAIL 60MPH 1.00IN
$$
TJT3 follow-up statements
413 WWUS53 KGRR 172358 SVSGRR SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 758 PM EDT TUE JUL 17 2012 MIC085-180007- /O.CAN.KGRR.SV.W.0049.000000T0000Z-120718T0030Z/ LAKE MI- 758 PM EDT TUE JUL 17 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LAKE COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS EITHER WEAKENED OR MOVED OUT OF THE WARNED AREA. LAT...LON 4395 8510 4382 8510 4382 8556 4396 8556 TIME...MOT...LOC 2357Z 275DEG 24KT 4386 8547 $$ MIC133-180030- /O.CON.KGRR.SV.W.0049.000000T0000Z-120718T0030Z/ OSCEOLA MI- 758 PM EDT TUE JUL 17 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN OSCEOLA COUNTY UNTIL 830 PM EDT... AT 755 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR REED CITY... MOVING EAST AT 30 MPH. LOCATIONS IMPACTED INCLUDE... REED CITY... EVART... ORIENT TWP... SEARS... HERSEY... PRECAUTIONARY/PREPAREDNESS ACTIONS... FOR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. && LAT...LON 4395 8510 4382 8510 4382 8556 4396 8556 TIME...MOT...LOC 2357Z 275DEG 24KT 4386 8547 WIND...HAIL 60MPH 1.00IN $$ LAURENS
777 WWUS53 KGRR 180011 SVSGRR SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 811 PM EDT TUE JUL 17 2012 MIC133-180030- /O.CON.KGRR.SV.W.0049.000000T0000Z-120718T0030Z/ OSCEOLA MI- 811 PM EDT TUE JUL 17 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN OSCEOLA COUNTY UNTIL 830 PM EDT... AT 808 PM EDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 6 MILES SOUTHWEST OF EVART...MOVING EAST AT 30 MPH. LOCATIONS IMPACTED INCLUDE... EVART... ORIENT TWP... SEARS... PRECAUTIONARY/PREPAREDNESS ACTIONS... FOR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. && LAT...LON 4389 8541 4391 8510 4382 8510 4382 8541 TIME...MOT...LOC 0011Z 275DEG 24KT 4385 8534 WIND...HAIL 60MPH 1.00IN $$ LAURENS
047 WWUS53 KGRR 180022 SVSGRR SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 822 PM EDT TUE JUL 17 2012 MIC133-180032- /O.EXP.KGRR.SV.W.0049.000000T0000Z-120718T0030Z/ OSCEOLA MI- 822 PM EDT TUE JUL 17 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN OSCEOLA COUNTY WILL EXPIRE AT 830 PM EDT... THE STORM 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 THIS THUNDERSTORM. LAT...LON 4389 8541 4391 8510 4382 8510 4382 8541 TIME...MOT...LOC 0022Z 275DEG 24KT 4384 8524 $$ LAURENS
The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 6:09 PM EDT | Special Marine Warning | GRR | 96 min | |
| Jul 17, 6:26 PM EDT | Special Weather Statement | GRR | Lake, Mason, Muskegon, Oceana | 64 min |
| Jul 17, 7:03 PM EDT | Severe Thunderstorm Warning | GRR | Lake, Mason, Newaygo, Oceana | 57 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2012Every severe thunderstorm warning in 2012
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.