Alert archive / Michigan / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 27, NWS Gaylord, MI
NWS Gaylord, MI issued this severe thunderstorm warning at Jul 30, 2012, 10:46 PM EDT for 4 counties in Michigan. It was in force for 59 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
- Jul 30, 2012, 10:46 PM EDT (02:46 UTC)
- Expired
- Jul 30, 2012, 11:45 PM EDT
- In force
- 59 min
- Issued by
- NWS Gaylord, MI
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Grand Traverse County, MI, Kalkaska County, MI, Missaukee County, MI, Wexford County, MI
The radar
The NCL Michigan radar (KAPX), 63 km from the middle of the area, began a volume at 02:47 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
Alpena, MI (KAPX), launched 00:00Z, 2.8 hours before the alert went out and 240 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
- 952 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 1396 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
256
WUUS53 KAPX 310246
SVRAPX
MIC055-079-113-165-310345-
/O.NEW.KAPX.SV.W.0027.120731T0246Z-120731T0345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
1046 PM EDT MON JUL 30 2012
THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN GRAND TRAVERSE COUNTY IN NORTHERN LOWER MICHIGAN...
KALKASKA COUNTY IN NORTHERN LOWER MICHIGAN...
NORTHERN MISSAUKEE COUNTY IN NORTHERN LOWER MICHIGAN...
NORTHEASTERN WEXFORD COUNTY IN NORTHERN LOWER MICHIGAN...
* UNTIL 1145 PM EDT
* AT 1043 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 WILLIAMSBURG TO KINGSLEY TO KARLIN...AND MOVING SOUTHEAST AT
35 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.
* LOCATIONS IMPACTED INCLUDE...
KALKASKA...BARKER CREEK...BUCKLEY...FIFE LAKE...SOUTH BOARDMAN...
DARRAGH...MANTON...MOREY...SIGMA...BEAR LAKE...SHARON...
MOORESTOWN...SMITHVILLE...STITTSVILLE AND MERRITT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS 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.
&&
LAT...LON 4452 8580 4460 8557 4455 8536 4480 8534
4476 8485 4426 8485
TIME...MOT...LOC 0246Z 313DEG 28KT 4475 8541 4456 8544
4455 8575
WIND...HAIL 60MPH 0.75IN
$$3 follow-up statements
068
WWUS34 KAPX 310310
SVSAPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
1110 PM EDT MON JUL 30 2012
MIC055-079-113-165-310345-
/O.CON.KAPX.SV.W.0027.000000T0000Z-120731T0345Z/
GRAND TRAVERSE MI-WEXFORD MI-KALKASKA MI-MISSAUKEE MI-
1110 PM EDT MON JUL 30 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
MISSAUKEE...SOUTHERN KALKASKA...NORTHEASTERN WEXFORD AND SOUTHEASTERN
GRAND TRAVERSE COUNTIES UNTIL 1145 PM EDT...
AT 1106 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM SIGMA TO MOREY TO 6 MILES EAST OF SHERMAN...MOVING SOUTHEAST AT
30 MPH. PENNY SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.
LOCATIONS IMPACTED INCLUDE...
MOREY...MOORESTOWN...STITTSVILLE AND MERRITT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 4450 8572 4458 8546 4455 8536 4473 8513
4472 8485 4427 8485 4426 8486
TIME...MOT...LOC 0310Z 313DEG 28KT 4462 8500 4444 8514
4442 8556
WIND...HAIL 60MPH 0.75IN
$$058
WWUS34 KAPX 310330
SVSAPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
1130 PM EDT MON JUL 30 2012
MIC055-310339-
/O.CAN.KAPX.SV.W.0027.000000T0000Z-120731T0345Z/
GRAND TRAVERSE MI-
1130 PM EDT MON JUL 30 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GRAND TRAVERSE
COUNTY IS CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE
WARNED AREA.
LAT...LON 4448 8564 4452 8510 4471 8507 4471 8485
4426 8486
TIME...MOT...LOC 0329Z 313DEG 28KT 4459 8483 4434 8488
4436 8551
WIND...HAIL <50MPH <.50IN
$$
MIC079-113-165-310345-
/O.CON.KAPX.SV.W.0027.000000T0000Z-120731T0345Z/
WEXFORD MI-KALKASKA MI-MISSAUKEE MI-
1130 PM EDT MON JUL 30 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
MISSAUKEE...SOUTHEASTERN KALKASKA AND NORTHEASTERN WEXFORD COUNTIES
UNTIL 1145 PM EDT...
AT 1125 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM 8 MILES SOUTHWEST OF GRAYLING TO 7 MILES SOUTH OF MOORESTOWN TO
MEAUWATAKA...MOVING SOUTHEAST AT 30 MPH. PENNY SIZE HAIL MAY ALSO
ACCOMPANY THESE DAMAGING WINDS.
LOCATIONS IMPACTED INCLUDE...
MERRITT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 4448 8564 4452 8510 4471 8507 4471 8485
4426 8486
TIME...MOT...LOC 0329Z 313DEG 28KT 4459 8483 4434 8488
4436 8551
WIND...HAIL 60MPH 0.75IN
$$374
WWUS34 KAPX 310345
SVSAPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
1145 PM EDT MON JUL 30 2012
MIC079-113-165-310355-
/O.EXP.KAPX.SV.W.0027.000000T0000Z-120731T0345Z/
WEXFORD MI-KALKASKA MI-MISSAUKEE MI-
1145 PM EDT MON JUL 30 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN MISSAUKEE...
SOUTHEASTERN KALKASKA AND NORTHEASTERN WEXFORD COUNTIES HAS
EXPIRED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY.
LAT...LON 4448 8564 4452 8510 4471 8507 4471 8485
4426 8486
TIME...MOT...LOC 0345Z 313DEG 28KT 4448 8473 4423 8479
4426 8542
WIND...HAIL <50MPH <.50IN
$$The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 8:48 PM EDT | Special Marine Warning | APX | 87 min | |
| Jul 30, 9:12 PM EDT | Special Marine Warning | APX | 93 min | |
| Jul 30, 9:55 PM EDT | Severe Thunderstorm Warning | APX | Cheboygan, Emmet, Mackinac, Presque Isle | 65 min |
| Jul 30, 10:12 PM EDT | Severe Thunderstorm Warning | APX | Benzie, Grand Traverse, Leelanau | 48 min |
| Jul 30, 11:55 PM EDT | Severe Thunderstorm Warning | APX | Arenac, Gladwin, Iosco, Missaukee, Ogemaw, Roscommon | 65 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.