Alert archive / Michigan / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 68, NWS Gaylord, MI
NWS Gaylord, MI issued this severe thunderstorm warning at Sep 7, 2021, 9:29 AM EDT for 6 counties in Michigan. It was in force for 46 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
- Sep 7, 2021, 9:29 AM EDT (13:29 UTC)
- Expired
- Sep 7, 2021, 10:15 AM EDT
- In force
- 46 min
- Issued by
- NWS Gaylord, MI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Benzie County, MI, Grand Traverse County, MI, Kalkaska County, MI, Manistee County, MI, Missaukee County, MI, Wexford County, MI
The radar
The NCL Michigan radar (KAPX), 81 km from the middle of the area, began a volume at 13:30 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 |
|---|---|---|---|
| Sep 7, 9:30 AM EDT | TSTM WND DMG | 2 N Interlochen, MI | POWER LINES DOWN ON ROAD. TIME OF DAMAGE ESTIMATED FROM RADAR. |
| Sep 7, 9:40 AM EDT | HAIL 0.7 | 1 Ene Grawn, MI |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 1.5 hours before the alert went out and 200 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
- 14 J/kg
- Mixed-layer CIN
- -216 J/kg
- Mixed-layer LCL
- 1012 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- -120 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
The text
As transmitted.
719
WUUS53 KAPX 071329
SVRAPX
MIC019-055-079-101-113-165-071415-
/O.NEW.KAPX.SV.W.0068.210907T1329Z-210907T1415Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Gaylord MI
929 AM EDT Tue Sep 7 2021
The National Weather Service in Gaylord has issued a
* Severe Thunderstorm Warning for...
Southeastern Benzie County in northern Michigan...
Wexford County in northern Michigan...
Grand Traverse County in northern Michigan...
Southeastern Manistee County in northern Michigan...
Southern Kalkaska County in northern Michigan...
Northwestern Missaukee County in northern Michigan...
* Until 1015 AM EDT.
* At 928 AM EDT, severe thunderstorms were located along a line
extending from Interlochen State Park to near Norwalk, moving east
at 45 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated. At 913 EM EDT, penny size hail was
reported 1 mile east of Beulah.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Severe thunderstorms will be near...
Grawn, Interlochen, Interlochen State Park and Karlin around 935
AM EDT.
Traverse City, Buckley and Hannah around 940 AM EDT.
Kingsley around 945 AM EDT.
Other locations in the path of these severe thunderstorms include
Yuma, Spider Lake, Sherman, Mesick, Harrietta, Boon, Fife Lake, South
Boardman, Meauwataka, Cadillac, Sharon, Mitchell State Park and
Jennings.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4462 8492 4418 8535 4427 8627 4454 8596
4466 8590 4475 8575
TIME...MOT...LOC 1328Z 272DEG 38KT 4463 8579 4433 8610
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Cornish3 follow-up statements
168
WWUS53 KAPX 071343
SVSAPX
Severe Weather Statement
National Weather Service Gaylord MI
943 AM EDT Tue Sep 7 2021
MIC019-071353-
/O.CAN.KAPX.SV.W.0068.000000T0000Z-210907T1415Z/
Benzie MI-
943 AM EDT Tue Sep 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BENZIE COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 4421 8532 4429 8604 4452 8577 4459 8565
4465 8561 4474 8569 4462 8492
TIME...MOT...LOC 1343Z 269DEG 57KT 4470 8546 4463 8542 4456 8548 4437
8580
$$
MIC055-079-101-113-165-071415-
/O.CON.KAPX.SV.W.0068.000000T0000Z-210907T1415Z/
Wexford MI-Grand Traverse MI-Manistee MI-Kalkaska MI-Missaukee MI-
943 AM EDT Tue Sep 7 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 AM EDT
FOR WEXFORD...SOUTHEASTERN GRAND TRAVERSE...EAST CENTRAL MANISTEE...
SOUTHERN KALKASKA AND NORTHWESTERN MISSAUKEE COUNTIES...
At 943 AM EDT, severe thunderstorms were located along a line
extending from near Spider Lake to near Fife Lake to near Kingsley to
near Yuma, moving east at 65 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...
Fife Lake, South Boardman, Cadillac, Sharon, Manton, Jennings,
Lake City and Morey.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4421 8532 4429 8604 4452 8577 4459 8565
4465 8561 4474 8569 4462 8492
TIME...MOT...LOC 1343Z 269DEG 57KT 4470 8546 4463 8542 4456 8548 4437
8580
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Cornish416
WWUS53 KAPX 071402
SVSAPX
Severe Weather Statement
National Weather Service Gaylord MI
1002 AM EDT Tue Sep 7 2021
MIC101-071411-
/O.CAN.KAPX.SV.W.0068.000000T0000Z-210907T1415Z/
Manistee MI-
1002 AM EDT Tue Sep 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MANISTEE COUNTY
IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 4427 8582 4431 8582 4447 8561 4456 8563
4464 8550 4465 8539 4468 8529 4462 8492
4421 8532
TIME...MOT...LOC 1401Z 269DEG 43KT 4470 8513 4463 8509 4456 8515 4437
8547
$$
MIC055-079-113-165-071415-
/O.CON.KAPX.SV.W.0068.000000T0000Z-210907T1415Z/
Wexford MI-Grand Traverse MI-Kalkaska MI-Missaukee MI-
1002 AM EDT Tue Sep 7 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 AM EDT
FOR WEXFORD...SOUTHEASTERN GRAND TRAVERSE...SOUTHERN KALKASKA AND
NORTHWESTERN MISSAUKEE COUNTIES...
At 1001 AM EDT, severe thunderstorms were located along a line
extending from near Kalkaska to near Sigma to near Sharon to near
Meauwataka, moving east at 50 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Cadillac, Lake City, Sharon, Kingsley, Manton, Boon, Fife Lake,
Harrietta, Meauwataka, Jennings, South Boardman, Mitchell State Park,
Morey, Yuma and Smithville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4427 8582 4431 8582 4447 8561 4456 8563
4464 8550 4465 8539 4468 8529 4462 8492
4421 8532
TIME...MOT...LOC 1401Z 269DEG 43KT 4470 8513 4463 8509 4456 8515 4437
8547
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Cornish235
WWUS53 KAPX 071411
SVSAPX
Severe Weather Statement
National Weather Service Gaylord MI
1011 AM EDT Tue Sep 7 2021
MIC055-079-113-165-071420-
/O.EXP.KAPX.SV.W.0068.000000T0000Z-210907T1415Z/
Wexford MI-Grand Traverse MI-Kalkaska MI-Missaukee MI-
1011 AM EDT Tue Sep 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR WEXFORD...SOUTHEASTERN GRAND
TRAVERSE...SOUTHERN KALKASKA AND NORTHWESTERN MISSAUKEE COUNTIES WILL
EXPIRE AT 1015 AM EDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with these thunderstorms.
LAT...LON 4427 8582 4431 8582 4447 8561 4456 8563
4464 8550 4465 8539 4468 8529 4462 8492
4421 8532
TIME...MOT...LOC 1410Z 270DEG 32KT 4466 8505 4458 8515 4451 8521 4432
8553
$$
CornishThe office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 4:14 AM EDT | Beach Hazards Statement | APX | Alpena, Benzie, Charlevoix, Emmet, Leelanau, Mackinac and 1 more | 12 hr |
| Sep 7, 7:26 AM EDT | Special Marine Warning | APX | 2 hr | |
| Sep 7, 7:55 AM EDT | Special Marine Warning | APX | 95 min | |
| Sep 7, 8:26 AM EDT | Special Marine Warning | APX | 64 min | |
| Sep 7, 8:40 AM EDT | Severe Thunderstorm Warning | APX | Benzie, Grand Traverse, Leelanau | 50 min |
| Sep 7, 8:57 AM EDT | Severe Thunderstorm Warning | APX | Benzie, Grand Traverse, Manistee | 33 min |
| Sep 7, 9:25 AM EDT | Severe Thunderstorm Warning | APX | Antrim, Grand Traverse, Kalkaska | 50 min |
| Sep 7, 9:27 AM EDT | Special Marine Warning | APX | 33 min | |
| Sep 7, 10:26 AM EDT | Severe Thunderstorm Warning | APX | Missaukee, Wexford | 34 min |
| Sep 7, 10:49 AM EDT | Special Marine Warning | APX | 56 min | |
| Sep 7, 11:06 AM EDT | Severe Thunderstorm Warning | APX | Crawford, Missaukee, Ogemaw, Oscoda, Roscommon | 24 min |
| Sep 7, 11:24 AM EDT | Severe Thunderstorm Warning | APX | Benzie, Manistee | 51 min |
| Sep 7, 11:28 AM EDT | Severe Thunderstorm Warning | APX | Crawford, Kalkaska | 47 min |
| Sep 7, 11:30 AM EDT | Severe Thunderstorm Warning | APX | Alcona, Crawford, Iosco, Ogemaw, Oscoda, Roscommon | 45 min |
| Sep 7, 11:56 AM EDT | Severe Thunderstorm Warning | APX | Manistee, Missaukee, Wexford | 34 min |
| Sep 7, 12:00 PM EDT | Severe Thunderstorm Warning | APX | Manistee | 30 min |
| Sep 7, 12:08 PM EDT | Severe Thunderstorm Warning | APX | Alcona, Iosco, Ogemaw | 14 min |
| Sep 7, 12:28 PM EDT | Severe Thunderstorm Warning | APX | Missaukee, Roscommon, Wexford | 47 min |
| Sep 7, 1:09 PM EDT | Severe Thunderstorm Warning | APX | Iosco | 16 min |
| Sep 7, 1:10 PM EDT | Special Marine Warning | APX | 2 hr | |
| Sep 7, 1:29 PM EDT | Severe Thunderstorm Warning | APX | Wexford | 19 min |
| Sep 7, 1:31 PM EDT | Special Marine Warning | APX | 67 min | |
| Sep 7, 1:31 PM EDT | Severe Thunderstorm Warning | APX | Missaukee, Roscommon | 29 min |
| Sep 7, 1:37 PM EDT | Severe Thunderstorm Warning | APX | Alcona, Alpena, Iosco | 38 min |
| Sep 7, 1:47 PM EDT | Severe Thunderstorm Warning | APX | Iosco, Ogemaw | 58 min |
| Sep 7, 2:22 PM EDT | Severe Thunderstorm Warning | APX | Arenac, Gladwin, Iosco, Ogemaw | 53 min |
| Sep 7, 3:12 PM EDT | Special Marine Warning | APX | 70 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.