Alert archive / Michigan / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 52, NWS Gaylord, MI

August 28, 20214 counties in Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Aug 28, 2021, 4:17 PM EDT for 4 counties in Michigan. It was in force for 43 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: Aug 28, 2021, 4:17 PM EDT (20:17 UTC)
Expired: Aug 28, 2021, 5:00 PM EDT
In force: 43 min
Issued by: NWS Gaylord, MI
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Alcona County, MI, Iosco County, MI, Ogemaw County, MI, Oscoda County, MI

The radar

The NCL Michigan radar (KAPX), 81 km from the middle of the area, began a volume at 20:17 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, 4:30 PM EDT	TSTM WND DMG	4 Ene West Branch, MI	OGEMAW COUNTY DISPATCH REPORTS NUMEROUS AREAS WITH TREES DOWNS AND POWER OUTAGES, INCLUDING PEACH LAKE/W FINERTY RD.
Aug 28, 4:44 PM EDT	TSTM WND GST 39	3 Se West Branch, MI	AWOS STATION KY31 WEST BRANCH.

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, 8.3 hours before the alert went out and 151 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.

558 
WUUS53 KAPX 282017
SVRAPX
MIC001-069-129-135-282100-
/O.NEW.KAPX.SV.W.0052.210828T2017Z-210828T2100Z/

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

The National Weather Service in Gaylord has issued a

* Severe Thunderstorm Warning for...
  Southwestern Alcona County in northern Michigan...
  Ogemaw County in northern Michigan...
  Northwestern Iosco County in northern Michigan...
  Southeastern Oscoda County in northern Michigan...

* Until 500 PM EDT.

* At 417 PM EDT, severe thunderstorms were located along a line
  extending from near Rose Township to near Bowmanville, 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.

* Severe thunderstorms will be near...
  Rose City around 420 PM EDT.
  Rose Township around 425 PM EDT.
  Lupton and Rifle River State Park around 430 PM EDT.

Other locations in the path of these severe thunderstorms include
South Branch, Skidway Lake, Selkirk, Curtisville, Glennie and Hale.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4425 8379 4418 8437 4435 8437 4451 8425
      4464 8362
TIME...MOT...LOC 2017Z 252DEG 32KT 4446 8419 4419 8432 

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

$$

Cornish

3 follow-up statements

272 
WWUS53 KAPX 282027
SVSAPX

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

MIC001-069-129-135-282100-
/O.CON.KAPX.SV.W.0052.000000T0000Z-210828T2100Z/
Alcona MI-Ogemaw MI-Iosco MI-Oscoda MI-
427 PM EDT Sat Aug 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR SOUTHWESTERN ALCONA...OGEMAW...NORTHWESTERN IOSCO AND
SOUTHEASTERN OSCODA COUNTIES...

At 427 PM EDT, severe thunderstorms were located along a line
extending from near South Branch to near West Branch, 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.

These severe storms will be near...
  Lupton around 430 PM EDT.
  Long Lake, South Branch and Curtisville around 435 PM EDT.

Other locations in the path of these severe thunderstorms include
Glennie and Hale.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4425 8379 4420 8431 4435 8430 4453 8415
      4464 8362
TIME...MOT...LOC 2027Z 264DEG 29KT 4451 8396 4424 8416 

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

$$

Cornish

222 
WWUS53 KAPX 282040
SVSAPX

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

MIC001-135-282050-
/O.CAN.KAPX.SV.W.0052.000000T0000Z-210828T2100Z/
Alcona MI-Oscoda MI-
440 PM EDT Sat Aug 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN ALCONA AND
SOUTHEASTERN OSCODA COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 4421 8426 4430 8422 4440 8413 4443 8406
      4451 8401 4451 8368 4425 8379
TIME...MOT...LOC 2040Z 269DEG 33KT 4453 8380 4426 8400 

$$

MIC069-129-282100-
/O.CON.KAPX.SV.W.0052.000000T0000Z-210828T2100Z/
Ogemaw MI-Iosco MI-
440 PM EDT Sat Aug 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR EASTERN OGEMAW AND NORTHWESTERN IOSCO COUNTIES...

At 440 PM EDT, severe thunderstorms were located along a line
extending from near Curtisville to near Selkirk, moving east at 40
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.

These severe thunderstorms will remain over mainly rural areas of
eastern Ogemaw and northwestern Iosco Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4421 8426 4430 8422 4440 8413 4443 8406
      4451 8401 4451 8368 4425 8379
TIME...MOT...LOC 2040Z 269DEG 33KT 4453 8380 4426 8400 

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

$$

Cornish

701 
WWUS53 KAPX 282048
SVSAPX

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

MIC069-129-282100-
/O.CON.KAPX.SV.W.0052.000000T0000Z-210828T2100Z/
Ogemaw MI-Iosco MI-
448 PM EDT Sat Aug 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM EDT
FOR EASTERN OGEMAW AND NORTHWESTERN IOSCO COUNTIES...

At 448 PM EDT, severe thunderstorms were located along a line
extending from near Glennie to 6 miles northeast of Skidway Lake,
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...
South Branch, Hale and Selkirk. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4423 8417 4430 8412 4435 8403 4442 8396
      4451 8392 4451 8368 4425 8379
TIME...MOT...LOC 2048Z 263DEG 32KT 4453 8374 4426 8394 

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

$$

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, 4:30 PM EDT	Special Marine Warning	APX		2 hr
Aug 28, 4:52 PM EDT	Severe Thunderstorm Warning	APX	Alcona, Iosco	56 min
Aug 28, 5:05 PM EDT	Severe Thunderstorm Warning	APX	Arenac, Gladwin, Iosco, Ogemaw	55 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.