Alert archive / Michigan / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 17, NWS Gaylord, MI
NWS Gaylord, MI issued this severe thunderstorm warning at Jul 24, 2021, 3:16 PM EDT for Arenac County, Michigan. It was in force for 29 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, 3:16 PM EDT (19:16 UTC)
- Expired
- Jul 24, 2021, 3:45 PM EDT
- In force
- 29 min
- Issued by
- NWS Gaylord, MI
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Arenac County, MI
The radar
The NCL Michigan radar (KAPX), 126 km from the middle of the area, began a volume at 19:17 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 24, 3:16 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Alpena, MI (KAPX), launched 12:00Z, 7.3 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.
- Mixed-layer CAPE
- 597 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 737 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 140 m²/s²
- 0-3 km storm-relative helicity
- 172 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.9
The text
As transmitted.
221
WUUS53 KAPX 241916
SVRAPX
MIC011-241945-
/O.NEW.KAPX.SV.W.0017.210724T1916Z-210724T1945Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Gaylord MI
316 PM EDT Sat Jul 24 2021
The National Weather Service in Gaylord has issued a
* Severe Thunderstorm Warning for...
Northeastern Arenac County in northern Michigan...
* Until 345 PM EDT.
* At 315 PM EDT, a severe thunderstorm was located near Au Gres,
moving east at 30 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
northeastern Arenac County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4406 8363 4402 8369 4399 8368 4400 8372
4399 8377 4416 8379 4417 8358 4420 8355
4421 8350 4418 8351 4418 8355 4417 8357
4411 8357 4406 8359 4403 8343
TIME...MOT...LOC 1915Z 266DEG 26KT 4409 8368
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$2 follow-up statements
860
WWUS53 KAPX 241926
SVSAPX
Severe Weather Statement
National Weather Service Gaylord MI
326 PM EDT Sat Jul 24 2021
MIC011-241945-
/O.CON.KAPX.SV.W.0017.000000T0000Z-210724T1945Z/
Arenac MI-
326 PM EDT Sat Jul 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR NORTHEASTERN ARENAC COUNTY...
At 325 PM EDT, a severe thunderstorm was located near Au Gres, moving
east at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe thunderstorm will remain over mainly rural areas of
northeastern Arenac County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4405 8369 4416 8367 4416 8357 4411 8357
4406 8359 4405 8354 4405 8356 4406 8363
4405 8365
TIME...MOT...LOC 1925Z 276DEG 29KT 4407 8358
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$871
WWUS53 KAPX 241936
SVSAPX
Severe Weather Statement
National Weather Service Gaylord MI
336 PM EDT Sat Jul 24 2021
MIC011-241946-
/O.EXP.KAPX.SV.W.0017.000000T0000Z-210724T1945Z/
Arenac MI-
336 PM EDT Sat Jul 24 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ARENAC COUNTY
WILL EXPIRE AT 345 PM EDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
northern Michigan.
LAT...LON 4405 8369 4416 8367 4416 8357 4411 8357
4406 8359 4405 8354 4405 8356 4406 8363
4405 8365
TIME...MOT...LOC 1936Z 266DEG 26KT 4407 8361
$$The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 3:08 AM EDT | Small Craft Advisory | APX | 16 hr | |
| Jul 24, 8:17 AM EDT | Special Weather Statement | APX | Leelanau | 58 min |
| Jul 24, 8:59 AM EDT | Flash Flood Warning | APX | Leelanau | 3 hr |
| Jul 24, 9:17 AM EDT | Flash Flood Warning | APX | Grand Traverse, Leelanau | 3 hr |
| Jul 24, 9:28 AM EDT | Special Weather Statement | APX | Kalkaska | 32 min |
| Jul 24, 9:33 AM EDT | Flash Flood Warning | APX | Antrim, Grand Traverse, Kalkaska | 3 hr |
| Jul 24, 12:52 PM EDT | Special Weather Statement | APX | Missaukee, Roscommon | 38 min |
| Jul 24, 1:11 PM EDT | Special Weather Statement | APX | Roscommon | 34 min |
| Jul 24, 1:33 PM EDT | Special Weather Statement | APX | Gladwin, Ogemaw, Roscommon | 27 min |
| Jul 24, 1:53 PM EDT | Special Weather Statement | APX | Ogemaw | 37 min |
| Jul 24, 2:09 PM EDT | Special Marine Warning | APX | 66 min | |
| Jul 24, 2:29 PM EDT | Special Weather Statement | APX | Arenac | 46 min |
| Jul 24, 3:21 PM EDT | Severe Thunderstorm Warning | APX | Gladwin | 54 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.