Alert archive / Michigan / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 18, NWS Gaylord, MI

July 24, 2021Gladwin County, Michigan

NWS Gaylord, MI issued this severe thunderstorm warning at Jul 24, 2021, 3:21 PM EDT for Gladwin County, Michigan. It was in force for 54 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
Jul 24, 2021, 3:21 PM EDT (19:21 UTC)
Expired
Jul 24, 2021, 4:15 PM EDT
In force
54 min
Issued by
NWS Gaylord, MI
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

County Gladwin County, MI

The radar

The NCL Michigan radar (KAPX), 116 km from the middle of the area, began a volume at 19:22 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
Jul 24, 3:16 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 7.4 hours before the alert went out and 152 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, Detroit, MI at 12:00Z on 2021-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 588 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, Detroit, MI at 12:00Z on 2021-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 square meters per square second.193958Sfc1 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
588 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
557 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
129 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.8

Open this sounding in Storm Lab

The text

As transmitted.

364 
WUUS53 KAPX 241921
SVRAPX
MIC051-242015-
/O.NEW.KAPX.SV.W.0018.210724T1921Z-210724T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Gaylord MI
321 PM EDT Sat Jul 24 2021

The National Weather Service in Gaylord has issued a

* Severe Thunderstorm Warning for...
  Gladwin County in northern Michigan...

* Until 415 PM EDT.

* At 320 PM EDT, a severe thunderstorm was located 8 miles west of
  Beaverton, or 8 miles northeast of Clare, moving east at 30 mph.

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

  SOURCE...Radar indicated.

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

* This severe thunderstorm will be near...
  Gladwin and Beaverton around 335 PM EDT.

Other locations in the path of this severe thunderstorm include
Winegars, Wooden Shoe Village and Rhodes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4382 8460 4402 8460 4408 8417 4383 8416
      4383 8436 4381 8437
TIME...MOT...LOC 1920Z 274DEG 26KT 4391 8465 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$
4 follow-up statements
002 
WWUS53 KAPX 241940
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
340 PM EDT Sat Jul 24 2021

MIC051-242015-
/O.CON.KAPX.SV.W.0018.000000T0000Z-210724T2015Z/
Gladwin MI-
340 PM EDT Sat Jul 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR GLADWIN COUNTY...

At 340 PM EDT, a severe thunderstorm was located near Beaverton, or 8
miles southeast of Gladwin, 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...
  Rhodes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4382 8460 4402 8460 4408 8417 4383 8416
      4383 8436 4381 8437
TIME...MOT...LOC 1940Z 286DEG 31KT 4387 8443 

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

$$
456 
WWUS53 KAPX 241952
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
352 PM EDT Sat Jul 24 2021

MIC051-242015-
/O.CON.KAPX.SV.W.0018.000000T0000Z-210724T2015Z/
Gladwin MI-
352 PM EDT Sat Jul 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR GLADWIN COUNTY...

At 352 PM EDT, a severe thunderstorm was located near Rhodes, or 12
miles northeast of Sanford, 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.

Locations impacted include...
Gladwin, Beaverton, Wooden Shoe Village, Rhodes and Winegars. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4382 8460 4402 8460 4408 8417 4383 8416
      4383 8436 4381 8437
TIME...MOT...LOC 1952Z 287DEG 34KT 4384 8427 

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

$$
846 
WWUS53 KAPX 242004
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
404 PM EDT Sat Jul 24 2021

MIC051-242015-
/O.CON.KAPX.SV.W.0018.000000T0000Z-210724T2015Z/
Gladwin MI-
404 PM EDT Sat Jul 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR SOUTHEASTERN GLADWIN COUNTY...

At 404 PM EDT, a severe thunderstorm was located near Rhodes, or 9
miles west of Pinconning, 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...
Rhodes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4382 8451 4388 8436 4402 8417 4383 8416
      4383 8436 4381 8437
TIME...MOT...LOC 2004Z 279DEG 29KT 4383 8414 

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

$$
820 
WWUS53 KAPX 242007
SVSAPX

Severe Weather Statement
National Weather Service Gaylord MI
407 PM EDT Sat Jul 24 2021

MIC051-242016-
/O.EXP.KAPX.SV.W.0018.000000T0000Z-210724T2015Z/
Gladwin MI-
407 PM EDT Sat Jul 24 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GLADWIN COUNTY
WILL EXPIRE AT 415 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
northern Michigan.

LAT...LON 4382 8451 4388 8436 4402 8417 4383 8416
      4383 8436 4381 8437
TIME...MOT...LOC 2006Z 274DEG 26KT 4383 8415 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 24, 3:08 AM EDTSmall Craft AdvisoryAPX16 hr
Jul 24, 8:17 AM EDTSpecial Weather StatementAPXLeelanau58 min
Jul 24, 8:59 AM EDTFlash Flood WarningAPXLeelanau3 hr
Jul 24, 9:17 AM EDTFlash Flood WarningAPXGrand Traverse, Leelanau3 hr
Jul 24, 9:28 AM EDTSpecial Weather StatementAPXKalkaska32 min
Jul 24, 9:33 AM EDTFlash Flood WarningAPXAntrim, Grand Traverse, Kalkaska3 hr
Jul 24, 12:52 PM EDTSpecial Weather StatementAPXMissaukee, Roscommon38 min
Jul 24, 1:11 PM EDTSpecial Weather StatementAPXRoscommon34 min
Jul 24, 1:33 PM EDTSpecial Weather StatementAPXGladwin, Ogemaw, Roscommon27 min
Jul 24, 1:53 PM EDTSpecial Weather StatementAPXOgemaw37 min
Jul 24, 2:09 PM EDTSpecial Marine WarningAPX66 min
Jul 24, 2:29 PM EDTSpecial Weather StatementAPXArenac46 min
Jul 24, 3:16 PM EDTSevere Thunderstorm WarningAPXArenac29 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.