Alert archive / Michigan / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 6, NWS Gaylord, MI
NWS Gaylord, MI issued this severe thunderstorm warning at Apr 10, 2011, 6:55 PM EDT for 4 counties in Michigan. It was in force for 22 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
- Apr 10, 2011, 6:55 PM EDT (22:55 UTC)
- Expired
- Apr 10, 2011, 7:17 PM EDT
- In force
- 22 min
- Issued by
- NWS Gaylord, MI
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 60.0 mph
Counties Antrim County, MI, Charlevoix County, MI, Grand Traverse County, MI, Leelanau County, MI
The radar
The NCL Michigan radar (KAPX), 59 km from the middle of the area, began a volume at 22:57 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 |
|---|---|---|---|
| Apr 10, 6:20 PM EDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.9 hours before the alert went out and 214 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
- 56 J/kg
- Mixed-layer CIN
- -264 J/kg
- Mixed-layer LCL
- 799 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
377
WUUS53 KAPX 102255
SVRAPX
MIC009-029-055-089-102345-
/O.NEW.KAPX.SV.W.0006.110410T2255Z-110410T2345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GAYLORD MI
655 PM EDT SUN APR 10 2011
THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
ANTRIM COUNTY IN NORTHERN LOWER MICHIGAN...
SOUTHERN CHARLEVOIX COUNTY IN NORTHERN LOWER MICHIGAN...
NORTHERN GRAND TRAVERSE COUNTY IN NORTHERN LOWER MICHIGAN...
SOUTHEASTERN LEELANAU COUNTY IN NORTHERN LOWER MICHIGAN...
* UNTIL 745 PM EDT
* AT 651 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING WALNUT SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
BINGHAM...OR 9 MILES SOUTH OF LELAND...AND MOVING NORTHEAST AT 75
MPH.
MULTIPLE REPORTS OF HAIL TO THE SIZE OF QUARTERS HAVE BEEN
RECEIVED FROM THIS STORM ACROSS LEELANAU COUNTY OVER THE PAST 20
MINUTES.
* LOCATIONS IMPACTED INCLUDE...
ELK RAPIDS...BELLAIRE...MANCELONA...ELLSWORTH...EAST JORDAN...BOYNE
CITY...PESHAWBESTOWN...MAPLETON...OMENA...OLD MISSION...KEWADIN...
ALDEN...CLAM RIVER...TORCH LAKE...CENTRAL LAKE...IRONTON...JORDAN
TOWNSHIP...ALBA...HORTON BAY AND YOUNG STATE PARK.
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.
&&
A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM EDT MONDAY MORNING FOR
NORTHERN LOWER MICHIGAN.
LAT...LON 4501 8579 4511 8560 4478 8562 4500 8548
4499 8546 4488 8545 4492 8542 4521 8540
4535 8514 4524 8480 4496 8486 4476 8547
4476 8554 4486 8546 4488 8547 4476 8557
4477 8577 4495 8584
TIME...MOT...LOC 2255Z 242DEG 65KT 4493 8561
WIND...HAIL 60MPH 1.50IN
$$
LAWRENCE2 follow-up statements
901
WWUS34 KAPX 102310
SVSAPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
710 PM EDT SUN APR 10 2011
MIC089-102320-
/O.CAN.KAPX.SV.W.0006.000000T0000Z-110410T2345Z/
LEELANAU MI-
710 PM EDT SUN APR 10 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LEELANAU COUNTY
IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 4498 8540 4513 8538 4521 8540 4535 8514
4531 8501 4528 8500 4529 8496 4524 8480
4512 8483 4511 8486 4496 8486 4486 8519
4485 8532 4481 8534 4476 8548 4476 8554
TIME...MOT...LOC 2310Z 246DEG 115KT 4508 8513
WIND...HAIL <50MPH <.50IN
$$
MIC009-029-055-102345-
/O.CON.KAPX.SV.W.0006.000000T0000Z-110410T2345Z/
ANTRIM MI-GRAND TRAVERSE MI-CHARLEVOIX MI-
710 PM EDT SUN APR 10 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN
CHARLEVOIX...NORTHEASTERN GRAND TRAVERSE AND ANTRIM COUNTIES UNTIL
745 PM EDT...
AT 708 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
CENTRAL LAKE...OR 5 MILES NORTH OF BELLAIRE...MOVING NORTHEAST AT 70
MPH.
LOCATIONS IMPACTED INCLUDE...
EAST JORDAN...BOYNE CITY...JORDAN TOWNSHIP...HORTON BAY...ALBA...
YOUNG STATE PARK...WARNER TOWNSHIP...WILDWOOD...BOYNE FALLS AND
WALLOON LAKE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.
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 4498 8540 4513 8538 4521 8540 4535 8514
4531 8501 4528 8500 4529 8496 4524 8480
4512 8483 4511 8486 4496 8486 4486 8519
4485 8532 4481 8534 4476 8548 4476 8554
TIME...MOT...LOC 2310Z 246DEG 65KT 4508 8513
WIND...HAIL 60MPH 1.00IN
$$111
WWUS34 KAPX 102317
SVSAPX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GAYLORD MI
717 PM EDT SUN APR 10 2011
MIC009-029-055-102327-
/O.CAN.KAPX.SV.W.0006.000000T0000Z-110410T2345Z/
ANTRIM MI-GRAND TRAVERSE MI-CHARLEVOIX MI-
717 PM EDT SUN APR 10 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN CHARLEVOIX...
NORTHEASTERN GRAND TRAVERSE AND ANTRIM COUNTIES IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO
WATCH REMAINS IN EFFECT UNTIL 2 AM EDT.
LAT...LON 4498 8540 4513 8538 4521 8540 4535 8514
4531 8501 4528 8500 4529 8496 4524 8480
4512 8483 4511 8486 4496 8486 4486 8519
4485 8532 4481 8534 4476 8548 4476 8554
TIME...MOT...LOC 2317Z 246DEG 65KT 4511 8496
WIND...HAIL <50MPH <.50IN
$$The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 4:23 AM EDT | Severe Thunderstorm Warning | APX | Benzie, Grand Traverse, Leelanau, Manistee, Wexford | 22 min |
| Apr 10, 4:45 AM EDT | Severe Thunderstorm Warning | APX | Benzie, Grand Traverse, Kalkaska, Manistee, Wexford | 32 min |
| Apr 10, 5:01 AM EDT | Special Marine Warning | APX | 44 min | |
| Apr 10, 5:56 AM EDT | Severe Thunderstorm Warning | APX | Antrim, Benzie, Grand Traverse, Kalkaska, Manistee, Wexford | 49 min |
| Apr 10, 6:20 AM EDT | Severe Thunderstorm Warning | APX | Crawford, Kalkaska, Missaukee, Roscommon, Wexford | 55 min |
| Apr 10, 7:34 AM EDT | Special Marine Warning | APX | 86 min | |
| Apr 10, 3:55 PM EDT | Gale Watch | APX | 11 hr | |
| Apr 10, 5:34 PM EDT | Special Marine Warning | APX | 56 min | |
| Apr 10, 6:24 PM EDT | Severe Thunderstorm Warning | APX | Benzie, Leelanau | 44 min |
| Apr 10, 6:51 PM EDT | Special Marine Warning | APX | 24 min | |
| Apr 10, 7:15 PM EDT | Severe Thunderstorm Warning | APX | Alcona, Alpena, Montmorency | 60 min |
| Apr 10, 7:27 PM EDT | Severe Thunderstorm Warning | APX | Crawford, Montmorency, Oscoda, Otsego | 36 min |
| Apr 10, 7:54 PM EDT | Severe Thunderstorm Warning | APX | Alcona, Oscoda | 66 min |
| Apr 10, 7:56 PM EDT | Special Marine Warning | APX | 109 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2011Every severe thunderstorm warning in 2011
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.