Alert archive / Michigan / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 79, NWS Gaylord, MI

September 7, 2021Wexford County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Sep 7, 2021, 1:29 PM EDT for Wexford County, Michigan. It was in force for 19 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
Sep 7, 2021, 1:29 PM EDT (17:29 UTC)
Expired
Sep 7, 2021, 1:48 PM EDT
In force
19 min
Issued by
NWS Gaylord, MI
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Wexford County, MI

The radar

The NCL Michigan radar (KAPX), 101 km from the middle of the area, began a volume at 17:32 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.

IssuedProductOfficeLasted
Sep 7, 12:21 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 5.5 hours before the alert went out and 202 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-pSkew-T log-p diagram, Green Bay/Straub, WI at 12:00Z on 2021-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 14 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 12:00Z on 2021-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -120 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
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

Open this sounding in Storm Lab

The text

As transmitted.

281 
WUUS53 KAPX 071729
SVRAPX
MIC165-071800-
/O.NEW.KAPX.SV.W.0079.210907T1729Z-210907T1800Z/

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

The National Weather Service in Gaylord has issued a

* Severe Thunderstorm Warning for...
  Southern Wexford County in northern Michigan...

* Until 200 PM EDT.

* At 128 PM EDT, a severe thunderstorm was located near Boon, or 10
  miles west of Cadillac, moving northeast at 55 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...
  Cadillac and Mitchell State Park around 140 PM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4417 8574 4427 8574 4437 8534 4417 8534
TIME...MOT...LOC 1728Z 246DEG 47KT 4422 8562 

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

$$

Cornish
2 follow-up statements
872 
WWUS53 KAPX 071739
SVSAPX

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

MIC165-071800-
/O.CON.KAPX.SV.W.0079.000000T0000Z-210907T1800Z/
Wexford MI-
139 PM EDT Tue Sep 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM EDT
FOR SOUTHEASTERN WEXFORD COUNTY...

At 139 PM EDT, a severe thunderstorm was located over Cadillac,
moving east at 50 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 remain over mainly rural areas of
southeastern Wexford County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4417 8549 4428 8555 4437 8534 4417 8534
TIME...MOT...LOC 1739Z 253DEG 46KT 4423 8543 

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

$$

Cornish
401 
WWUS53 KAPX 071748
SVSAPX

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

MIC165-071758-
/O.CAN.KAPX.SV.W.0079.000000T0000Z-210907T1800Z/
Wexford MI-
148 PM EDT Tue Sep 7 2021

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

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

LAT...LON 4417 8549 4428 8555 4437 8534 4417 8534
TIME...MOT...LOC 1747Z 246DEG 47KT 4428 8528 

$$

Cornish

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 4:14 AM EDTBeach Hazards StatementAPXAlpena, Benzie, Charlevoix, Emmet, Leelanau, Mackinac and 1 more12 hr
Sep 7, 7:26 AM EDTSpecial Marine WarningAPX2 hr
Sep 7, 7:55 AM EDTSpecial Marine WarningAPX95 min
Sep 7, 8:26 AM EDTSpecial Marine WarningAPX64 min
Sep 7, 8:40 AM EDTSevere Thunderstorm WarningAPXBenzie, Grand Traverse, Leelanau50 min
Sep 7, 8:57 AM EDTSevere Thunderstorm WarningAPXBenzie, Grand Traverse, Manistee33 min
Sep 7, 9:25 AM EDTSevere Thunderstorm WarningAPXAntrim, Grand Traverse, Kalkaska50 min
Sep 7, 9:27 AM EDTSpecial Marine WarningAPX33 min
Sep 7, 9:29 AM EDTSevere Thunderstorm WarningAPXBenzie, Grand Traverse, Kalkaska, Manistee, Missaukee, Wexford46 min
Sep 7, 10:26 AM EDTSevere Thunderstorm WarningAPXMissaukee, Wexford34 min
Sep 7, 10:49 AM EDTSpecial Marine WarningAPX56 min
Sep 7, 11:06 AM EDTSevere Thunderstorm WarningAPXCrawford, Missaukee, Ogemaw, Oscoda, Roscommon24 min
Sep 7, 11:24 AM EDTSevere Thunderstorm WarningAPXBenzie, Manistee51 min
Sep 7, 11:28 AM EDTSevere Thunderstorm WarningAPXCrawford, Kalkaska47 min
Sep 7, 11:30 AM EDTSevere Thunderstorm WarningAPXAlcona, Crawford, Iosco, Ogemaw, Oscoda, Roscommon45 min
Sep 7, 11:56 AM EDTSevere Thunderstorm Warning Considerable damage threatAPXManistee, Missaukee, Wexford34 min
Sep 7, 12:00 PM EDTSevere Thunderstorm WarningAPXManistee30 min
Sep 7, 12:08 PM EDTSevere Thunderstorm WarningAPXAlcona, Iosco, Ogemaw14 min
Sep 7, 12:28 PM EDTSevere Thunderstorm WarningAPXMissaukee, Roscommon, Wexford47 min
Sep 7, 1:09 PM EDTSevere Thunderstorm WarningAPXIosco16 min
Sep 7, 1:10 PM EDTSpecial Marine WarningAPX2 hr
Sep 7, 1:31 PM EDTSpecial Marine WarningAPX67 min
Sep 7, 1:31 PM EDTSevere Thunderstorm WarningAPXMissaukee, Roscommon29 min
Sep 7, 1:37 PM EDTSevere Thunderstorm WarningAPXAlcona, Alpena, Iosco38 min
Sep 7, 1:47 PM EDTSevere Thunderstorm WarningAPXIosco, Ogemaw58 min
Sep 7, 2:22 PM EDTSevere Thunderstorm WarningAPXArenac, Gladwin, Iosco, Ogemaw53 min
Sep 7, 3:12 PM EDTSpecial Marine WarningAPX70 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.