Alert archive / Michigan / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 36, NWS Gaylord, MI
NWS Gaylord, MI issued this severe thunderstorm warning at Aug 11, 2021, 5:43 PM EDT for Cheboygan County, Emmet County, Presque Isle County, Michigan. It was in force for 47 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
- Aug 11, 2021, 5:43 PM EDT (21:43 UTC)
- Expired
- Aug 11, 2021, 6:30 PM EDT
- In force
- 47 min
- Issued by
- NWS Gaylord, MI
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Cheboygan County, MI, Emmet County, MI, Presque Isle County, MI
The radar
The NCL Michigan radar (KAPX), 82 km from the middle of the area, began a volume at 21:45 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 11, 4:48 PM EDT | Severe Thunderstorm Watch | SPC | 3 hr |
The nearest sounding before it
Alpena, MI (KAPX), launched 12:00Z, 9.7 hours before the alert went out and 160 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
- 2 J/kg
- Mixed-layer CIN
- -340 J/kg
- Mixed-layer LCL
- 1366 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 158 m²/s²
- 0-3 km storm-relative helicity
- 172 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
110
WUUS53 KAPX 112143
SVRAPX
MIC031-047-141-112230-
/O.NEW.KAPX.SV.W.0036.210811T2143Z-210811T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Gaylord MI
543 PM EDT Wed Aug 11 2021
The National Weather Service in Gaylord has issued a
* Severe Thunderstorm Warning for...
Central Cheboygan County in northern Michigan...
Northwestern Presque Isle County in northern Michigan...
East central Emmet County in northern Michigan...
* Until 630 PM EDT.
* At 543 PM EDT, severe thunderstorms were located along a line
extending from 6 miles southwest of Point Aux Pins On to Burt Lake,
moving east at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Severe thunderstorms will be near...
Cheboygan and Cheboygan State Park around 550 PM EDT.
Mullet Lake around 555 PM EDT.
Aloha, Aloha State Park, Nine Mile Point and Alverno around 600 PM
EDT.
Other locations in the path of these severe thunderstorms include
Black Lake, Huron Beach, Forty Mile Point and P H Hoeft State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4542 8488 4574 8460 4571 8436 4570 8437
4570 8431 4566 8419 4558 8408 4553 8407
4552 8390 4546 8380
TIME...MOT...LOC 2143Z 260DEG 49KT 4568 8459 4543 8473
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Cornish3 follow-up statements
501
WWUS53 KAPX 112156
SVSAPX
Severe Weather Statement
National Weather Service Gaylord MI
556 PM EDT Wed Aug 11 2021
MIC047-112206-
/O.CAN.KAPX.SV.W.0036.000000T0000Z-210811T2230Z/
Emmet MI-
556 PM EDT Wed Aug 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL EMMET COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
northern Michigan.
LAT...LON 4546 8380 4543 8466 4557 8456 4570 8443
4570 8431 4566 8419 4558 8408 4553 8407
4552 8390
TIME...MOT...LOC 2156Z 270DEG 49KT 4570 8435 4545 8449
$$
MIC031-141-112230-
/O.CON.KAPX.SV.W.0036.000000T0000Z-210811T2230Z/
Cheboygan MI-Presque Isle MI-
556 PM EDT Wed Aug 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR CENTRAL CHEBOYGAN AND NORTHWESTERN PRESQUE ISLE COUNTIES...
At 556 PM EDT, severe thunderstorms were located along a line
extending from near Cheboygan State Park to near Koehler Township,
moving east at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Black Lake, Nine Mile Point, Huron Beach, Forty Mile Point and P H
Hoeft State Park.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4546 8380 4543 8466 4557 8456 4570 8443
4570 8431 4566 8419 4558 8408 4553 8407
4552 8390
TIME...MOT...LOC 2156Z 270DEG 49KT 4570 8435 4545 8449
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Cornish884
WWUS53 KAPX 112212
SVSAPX
Severe Weather Statement
National Weather Service Gaylord MI
612 PM EDT Wed Aug 11 2021
MIC031-141-112230-
/O.CON.KAPX.SV.W.0036.000000T0000Z-210811T2230Z/
Cheboygan MI-Presque Isle MI-
612 PM EDT Wed Aug 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR EAST CENTRAL CHEBOYGAN AND NORTHWESTERN PRESQUE ISLE COUNTIES...
At 612 PM EDT, severe thunderstorms were located along a line
extending from 10 miles northeast of Nine Mile Point to near Huron
Beach, moving east at 60 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
P H Hoeft State Park, Nine Mile Point, Black Lake, Forty Mile Point
and Huron Beach.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4546 8380 4545 8443 4568 8427 4566 8419
4563 8414 4558 8408 4553 8407 4552 8390
TIME...MOT...LOC 2212Z 260DEG 54KT 4573 8404 4548 8419
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MG733
WWUS53 KAPX 112226
SVSAPX
Severe Weather Statement
National Weather Service Gaylord MI
626 PM EDT Wed Aug 11 2021
MIC031-141-112236-
/O.EXP.KAPX.SV.W.0036.000000T0000Z-210811T2230Z/
Cheboygan MI-Presque Isle MI-
626 PM EDT Wed Aug 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL CHEBOYGAN AND
NORTHWESTERN PRESQUE ISLE COUNTIES WILL EXPIRE AT 630 PM EDT...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire. However gusty winds are still possible with
these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
northern Michigan.
LAT...LON 4546 8380 4545 8443 4568 8427 4566 8419
4563 8414 4558 8408 4553 8407 4552 8390
TIME...MOT...LOC 2226Z 260DEG 49KT 4576 8382 4551 8397
$$
MGThe office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 9:00 PM EDT | Special Marine Warning | APX | 2 hr | |
| Aug 10, 9:44 PM EDT | Severe Thunderstorm Warning | APX | Antrim, Charlevoix | 46 min |
| Aug 10, 10:04 PM EDT | Severe Thunderstorm Warning | APX | Benzie, Grand Traverse, Leelanau, Manistee, Wexford | 41 min |
| Aug 10, 10:30 PM EDT | Severe Thunderstorm Warning | APX | Antrim, Kalkaska | 30 min |
| Aug 10, 10:45 PM EDT | Severe Thunderstorm Warning | APX | Benzie, Grand Traverse, Kalkaska, Leelanau, Missaukee, Wexford | 45 min |
| Aug 10, 10:52 PM EDT | Flash Flood Warning | APX | Antrim, Grand Traverse | 3 hr |
| Aug 10, 10:58 PM EDT | Severe Thunderstorm Warning | APX | Antrim, Crawford, Kalkaska, Otsego | 32 min |
| Aug 10, 11:24 PM EDT | Severe Thunderstorm Warning | APX | Antrim, Crawford, Kalkaska, Otsego | 51 min |
| Aug 10, 11:28 PM EDT | Severe Thunderstorm Warning | APX | Crawford, Kalkaska, Missaukee, Roscommon | 32 min |
| Aug 11, 12:13 AM EDT | Flash Flood Warning | APX | Leelanau | 3 hr |
| Aug 11, 12:28 AM EDT | Severe Thunderstorm Warning | APX | Alcona, Arenac, Iosco, Ogemaw, Oscoda | 47 min |
| Aug 11, 12:31 AM EDT | Severe Thunderstorm Warning | APX | Alcona, Alpena, Montmorency, Oscoda, Presque Isle | 44 min |
| Aug 11, 12:37 AM EDT | Special Marine Warning | APX | 83 min | |
| Aug 11, 1:46 AM EDT | Areal Flood Warning | APX | Antrim, Grand Traverse | 3 hr |
| Aug 11, 4:12 AM EDT | Small Craft Advisory | APX | 16 hr | |
| Aug 11, 2:52 PM EDT | Special Marine Warning | APX | 53 min | |
| Aug 11, 2:59 PM EDT | Special Weather Statement | APX | Mackinac | 31 min |
| Aug 11, 3:11 PM EDT | Special Marine Warning | APX | 64 min | |
| Aug 11, 3:18 PM EDT | Special Weather Statement | APX | Chippewa | 42 min |
| Aug 11, 3:38 PM EDT | Special Marine Warning | APX | 52 min | |
| Aug 11, 3:47 PM EDT | Severe Thunderstorm Warning | APX | Chippewa, Mackinac | 43 min |
| Aug 11, 3:58 PM EDT | Special Marine Warning | APX | 92 min | |
| Aug 11, 4:11 PM EDT | Severe Thunderstorm Warning | APX | Chippewa, Mackinac | 49 min |
| Aug 11, 4:24 PM EDT | Special Marine Warning | APX | 2 hr | |
| Aug 11, 4:54 PM EDT | Severe Thunderstorm Warning | APX | Cheboygan | 51 min |
| Aug 11, 5:00 PM EDT | Severe Thunderstorm Warning | APX | Emmet | 18 min |
| Aug 11, 5:24 PM EDT | Severe Thunderstorm Warning | APX | Charlevoix, Cheboygan, Emmet | 36 min |
| Aug 11, 5:28 PM EDT | Special Marine Warning | APX | 2 hr | |
| Aug 11, 5:30 PM EDT | Severe Thunderstorm Warning | APX | Antrim, Benzie, Grand Traverse, Kalkaska, Leelanau | 45 min |
| Aug 11, 5:52 PM EDT | Severe Thunderstorm Warning | APX | Cheboygan, Presque Isle | 38 min |
| Aug 11, 6:00 PM EDT | Severe Thunderstorm Warning | APX | Benzie, Leelanau | 30 min |
| Aug 11, 6:09 PM EDT | Severe Thunderstorm Warning | APX | Antrim, Crawford, Kalkaska, Otsego | 35 min |
| Aug 11, 6:24 PM EDT | Severe Thunderstorm Warning | APX | Antrim, Benzie, Grand Traverse, Kalkaska, Leelanau | 51 min |
| Aug 11, 6:26 PM EDT | Special Marine Warning | APX | 34 min | |
| Aug 11, 6:31 PM EDT | Severe Thunderstorm Warning | APX | Crawford, Montmorency, Oscoda, Otsego | 44 min |
| Aug 11, 6:58 PM EDT | Severe Thunderstorm Warning | APX | Alcona, Alpena, Presque Isle | 47 min |
| Aug 11, 7:26 PM EDT | Special Marine Warning | APX | 46 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 2021Every severe thunderstorm warning in 2021
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.