Alert archive / Michigan / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 54, NWS Gaylord, MI

August 28, 20214 counties in Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Aug 28, 2021, 5:05 PM EDT for 4 counties in Michigan. It was in force for 55 min. 1 report 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: Aug 28, 2021, 5:05 PM EDT (21:05 UTC)
Expired: Aug 28, 2021, 6:00 PM EDT
In force: 55 min
Issued by: NWS Gaylord, MI
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Arenac County, MI, Gladwin County, MI, Iosco County, MI, Ogemaw County, MI

The radar

The NCL Michigan radar (KAPX), 119 km from the middle of the area, began a volume at 21:04 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
Aug 28, 5:15 PM EDT	TSTM WND DMG	Whittemore, MI	IOSCO COUNTY DISPATCH REPORTS TREES DOWN NEAR WHITTEMORE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Alpena, MI (KAPX), launched 12:00Z, 9.1 hours before the alert went out and 144 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 32 J/kg
Mixed-layer CIN: -229 J/kg
Mixed-layer LCL: 1106 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 54 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

385 
WUUS53 KAPX 282105
SVRAPX
MIC011-051-069-129-282200-
/O.NEW.KAPX.SV.W.0054.210828T2105Z-210828T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Gaylord MI
505 PM EDT Sat Aug 28 2021

The National Weather Service in Gaylord has issued a

* Severe Thunderstorm Warning for...
  Arenac County in northern Michigan...
  Northeastern Gladwin County in northern Michigan...
  Southeastern Ogemaw County in northern Michigan...
  Southern Iosco County in northern Michigan...

* Until 600 PM EDT.

* At 505 PM EDT, a severe thunderstorm was located near Alger, moving
  east at 35 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.

* This severe thunderstorm will be near...
  Maple Ridge around 520 PM EDT.
  Omer around 525 PM EDT.

Other locations in the path of this severe thunderstorm include
Twining, Turner and Au Gres.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4422 8343 4422 8349 4418 8351 4418 8356
      4411 8357 4409 8359 4405 8358 4405 8365
      4401 8369 4399 8431 4415 8421 4425 8406
      4427 8338
TIME...MOT...LOC 2105Z 263DEG 29KT 4408 8407 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Cornish

3 follow-up statements

877 
WWUS53 KAPX 282127
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
527 PM EDT Sat Aug 28 2021

MIC051-282136-
/O.CAN.KAPX.SV.W.0054.000000T0000Z-210828T2200Z/
Gladwin MI-
527 PM EDT Sat Aug 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN GLADWIN COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4422 8343 4422 8349 4418 8351 4418 8356
      4411 8357 4409 8359 4405 8358 4405 8366
      4401 8369 4400 8416 4410 8410 4413 8402
      4425 8393 4427 8338
TIME...MOT...LOC 2126Z 263DEG 29KT 4410 8383 

$$

MIC011-069-129-282200-
/O.CON.KAPX.SV.W.0054.000000T0000Z-210828T2200Z/
Arenac MI-Ogemaw MI-Iosco MI-
527 PM EDT Sat Aug 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR ARENAC...SOUTHEASTERN OGEMAW AND SOUTHERN IOSCO COUNTIES...

At 526 PM EDT, a severe thunderstorm was located over Twining, or 7
miles northwest of Au Gres, moving east at 35 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...
  Turner and Au Gres.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4422 8343 4422 8349 4418 8351 4418 8356
      4411 8357 4409 8359 4405 8358 4405 8366
      4401 8369 4400 8416 4410 8410 4413 8402
      4425 8393 4427 8338
TIME...MOT...LOC 2126Z 263DEG 29KT 4410 8383 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Cornish

394 
WWUS53 KAPX 282145
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
545 PM EDT Sat Aug 28 2021

MIC129-282154-
/O.CAN.KAPX.SV.W.0054.000000T0000Z-210828T2200Z/
Ogemaw MI-
545 PM EDT Sat Aug 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN OGEMAW COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4422 8343 4422 8349 4418 8351 4418 8356
      4411 8357 4409 8359 4405 8358 4405 8366
      4401 8369 4401 8402 4405 8396 4408 8384
      4420 8375 4426 8364 4427 8338
TIME...MOT...LOC 2144Z 260DEG 29KT 4415 8360 

$$

MIC011-069-282200-
/O.CON.KAPX.SV.W.0054.000000T0000Z-210828T2200Z/
Arenac MI-Iosco MI-
545 PM EDT Sat Aug 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR CENTRAL ARENAC AND SOUTHEASTERN IOSCO COUNTIES...

At 544 PM EDT, a severe thunderstorm was located 7 miles southeast of
National City, or 8 miles northeast of Au Gres, moving east at 35
mph.

HAZARD...60 mph wind gusts and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Tawas City, Au Gres, Omer, Twining, Turner and Tawas Point State
Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4422 8343 4422 8349 4418 8351 4418 8356
      4411 8357 4409 8359 4405 8358 4405 8366
      4401 8369 4401 8402 4405 8396 4408 8384
      4420 8375 4426 8364 4427 8338
TIME...MOT...LOC 2144Z 260DEG 29KT 4415 8360 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Cornish

679 
WWUS53 KAPX 282155
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
555 PM EDT Sat Aug 28 2021

MIC011-069-282205-
/O.EXP.KAPX.SV.W.0054.000000T0000Z-210828T2200Z/
Arenac MI-Iosco MI-
555 PM EDT Sat Aug 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL ARENAC AND
SOUTHEASTERN IOSCO COUNTIES WILL EXPIRE AT 600 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 4422 8343 4422 8349 4418 8351 4418 8356
      4411 8357 4409 8359 4405 8358 4405 8366
      4401 8369 4401 8402 4405 8396 4408 8384
      4420 8375 4426 8364 4427 8338
TIME...MOT...LOC 2155Z 263DEG 29KT 4416 8353 

$$

Cornish

The office that day

Everything else NWS Gaylord, MI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 28, 12:49 AM EDT	Severe Thunderstorm Warning	APX	Benzie, Grand Traverse, Manistee, Wexford	56 min
Aug 28, 12:51 AM EDT	Flash Flood Warning	APX	Benzie	3 hr
Aug 28, 1:08 AM EDT	Flash Flood Warning	APX	Grand Traverse	3 hr
Aug 28, 1:40 AM EDT	Special Weather Statement	APX	Crawford, Kalkaska, Missaukee, Roscommon	95 min
Aug 28, 3:42 AM EDT	Severe Thunderstorm Warning	APX	Arenac, Gladwin, Missaukee, Ogemaw, Roscommon	63 min
Aug 28, 4:15 AM EDT	Severe Thunderstorm Warning	APX	Benzie, Grand Traverse, Kalkaska, Manistee, Missaukee, Wexford	60 min
Aug 28, 2:07 PM EDT	Severe Thunderstorm Warning	APX	Kalkaska	38 min
Aug 28, 2:59 PM EDT	Severe Thunderstorm Warning	APX	Crawford, Ogemaw, Oscoda, Roscommon	46 min
Aug 28, 3:14 PM EDT	Special Marine Warning	APX		89 min
Aug 28, 3:18 PM EDT	Small Craft Advisory	APX		29 hr
Aug 28, 3:26 PM EDT	Beach Hazards Statement	APX	Benzie, Charlevoix, Emmet, Leelanau, Mackinac, Manistee	29 hr
Aug 28, 3:57 PM EDT	Severe Thunderstorm Warning	APX	Presque Isle	33 min
Aug 28, 4:01 PM EDT	Severe Thunderstorm Warning	APX	Alpena, Montmorency	49 min
Aug 28, 4:17 PM EDT	Severe Thunderstorm Warning	APX	Alcona, Iosco, Ogemaw, Oscoda	43 min
Aug 28, 4:30 PM EDT	Special Marine Warning	APX		2 hr
Aug 28, 4:52 PM EDT	Severe Thunderstorm Warning	APX	Alcona, Iosco	56 min
Aug 28, 5:18 PM EDT	Special Marine Warning	APX		117 min

Nearby

Severe Thunderstorm Warnings in Michigan, 2021 Every 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.