Alert archive / Michigan / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 77, NWS Gaylord, MI

September 7, 2021Missaukee County, Roscommon County, Wexford County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Sep 7, 2021, 12:28 PM EDT for Missaukee County, Roscommon County, Wexford County, Michigan. It was in force for 47 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: Sep 7, 2021, 12:28 PM EDT (16:28 UTC)
Expired: Sep 7, 2021, 1:15 PM EDT
In force: 47 min
Issued by: NWS Gaylord, MI
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Missaukee County, MI, Roscommon County, MI, Wexford County, MI

The radar

The NCL Michigan radar (KAPX), 68 km from the middle of the area, began a volume at 16:31 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, 12:33 PM EDT	HAIL 1	1 Ene Cadillac, MI

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 7, 12:21 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 4.5 hours before the alert went out and 228 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1621 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 150 m²/s²
0-3 km storm-relative helicity: 201 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

324 
WUUS53 KAPX 071628
SVRAPX
MIC113-143-165-071715-
/O.NEW.KAPX.SV.W.0077.210907T1628Z-210907T1715Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Gaylord MI
1228 PM EDT Tue Sep 7 2021

The National Weather Service in Gaylord has issued a

* Severe Thunderstorm Warning for...
  East central Wexford County in northern Michigan...
  Northwestern Roscommon County in northern Michigan...
  Missaukee County in northern Michigan...

* Until 115 PM EDT.

* At 1228 PM EDT, a severe thunderstorm was located near Jennings, or
  near Cadillac, moving east at 50 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Trained weather spotters.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Lake City and Morey around 1235 PM EDT.

Other locations in the path of this severe thunderstorm include
Moorestown, Houghton Lake, Higgins Lake and North Higgins Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows!

&&

LAT...LON 4425 8541 4434 8544 4443 8537 4451 8485
      4451 8473 4425 8466
TIME...MOT...LOC 1628Z 257DEG 45KT 4432 8535 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Cornish

3 follow-up statements

225 
WWUS53 KAPX 071638
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
1238 PM EDT Tue Sep 7 2021

MIC165-071645-
/O.CAN.KAPX.SV.W.0077.000000T0000Z-210907T1715Z/
Wexford MI-
1238 PM EDT Tue Sep 7 2021

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

A Severe Thunderstorm Watch remains in effect until 700 PM EDT for
northern Michigan.

LAT...LON 4426 8534 4434 8534 4439 8528 4451 8485
      4451 8473 4425 8466
TIME...MOT...LOC 1635Z 264DEG 34KT 4431 8527 

$$

MIC113-143-071715-
/O.CON.KAPX.SV.W.0077.000000T0000Z-210907T1715Z/
Roscommon MI-Missaukee MI-
1238 PM EDT Tue Sep 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EDT
FOR NORTHWESTERN ROSCOMMON AND CENTRAL MISSAUKEE COUNTIES...

At 1235 PM EDT, a severe thunderstorm was located over Jennings, or
near Lake City, moving east at 40 mph.

HAZARD...Two inch hail and 60 mph wind gusts.

SOURCE...Trained weather spotters. At 1230 PM EDT, 2 inch hail was 
         reported near Cadillac.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

This severe storm will be near...
  Lake City around 1240 PM EDT.

Other locations in the path of this severe thunderstorm include
Houghton Lake, Higgins Lake and Prudenville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.

&&

LAT...LON 4426 8534 4434 8534 4439 8528 4451 8485
      4451 8473 4425 8466
TIME...MOT...LOC 1635Z 264DEG 34KT 4431 8527 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Cornish

358 
WWUS53 KAPX 071650
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
1250 PM EDT Tue Sep 7 2021

MIC113-143-071715-
/O.CON.KAPX.SV.W.0077.000000T0000Z-210907T1715Z/
Roscommon MI-Missaukee MI-
1250 PM EDT Tue Sep 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EDT
FOR NORTHWESTERN ROSCOMMON AND EAST CENTRAL MISSAUKEE COUNTIES...

At 1249 PM EDT, a severe thunderstorm was located near Lake City,
moving east at 40 mph.

HAZARD...Two inch hail and 60 mph wind gusts.

SOURCE...Trained weather spotters. At 1230 PM EDT, 2 inch hail was 
         reported near Cadillac.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
  Houghton Lake, Roscommon County Airport and Prudenville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.

&&

LAT...LON 4426 8519 4432 8521 4437 8517 4439 8509
      4445 8471 4425 8466
TIME...MOT...LOC 1649Z 264DEG 35KT 4432 8512 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...2.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Cornish

824 
WWUS53 KAPX 071700
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
100 PM EDT Tue Sep 7 2021

MIC113-143-071715-
/O.CON.KAPX.SV.W.0077.000000T0000Z-210907T1715Z/
Roscommon MI-Missaukee MI-
100 PM EDT Tue Sep 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EDT
FOR NORTHWESTERN ROSCOMMON AND EAST CENTRAL MISSAUKEE COUNTIES...

At 1259 PM EDT, a severe thunderstorm was located 7 miles north of 
Moddersville, or 9 miles west of Houghton Lake, moving east at 45 
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...
Houghton Lake, Prudenville and Merritt. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4428 8499 4431 8507 4435 8507 4438 8503
      4445 8471 4428 8467
TIME...MOT...LOC 1659Z 265DEG 42KT 4433 8495 

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
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, 9:29 AM EDT	Severe Thunderstorm Warning	APX	Benzie, Grand Traverse, Kalkaska, Manistee, Missaukee, Wexford	46 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 Considerable damage threat	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, 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, 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.