Alert archive / Michigan / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 19, NWS Gaylord, MI
NWS Gaylord, MI issued this severe thunderstorm warning at Jul 27, 2021, 12:50 AM EDT for Mackinac County, Michigan. It was in force for 40 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 27, 2021, 12:50 AM EDT (04:50 UTC)
- Expired
- Jul 27, 2021, 1:30 AM EDT
- In force
- 40 min
- Issued by
- NWS Gaylord, MI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
County Mackinac County, MI
The radar
The NCL Michigan radar (KAPX), 143 km from the middle of the area, began a volume at 04:51 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 nearest sounding before it
Alpena, MI (KAPX), launched 00:00Z, 4.8 hours before the alert went out and 265 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
- 36 J/kg
- Mixed-layer CIN
- -102 J/kg
- Mixed-layer LCL
- 2075 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 182 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
818
WUUS53 KAPX 270450
SVRAPX
MIC097-270530-
/O.NEW.KAPX.SV.W.0019.210727T0450Z-210727T0530Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Gaylord MI
1250 AM EDT Tue Jul 27 2021
The National Weather Service in Gaylord has issued a
* Severe Thunderstorm Warning for...
Northwestern Mackinac County in eastern Michigan...
* Until 130 AM EDT.
* At 1249 AM EDT, a severe thunderstorm was located near Engadine, or
15 miles south of Newberry, moving southeast at 30 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
* This severe thunderstorm will be near...
Engadine around 1255 AM EDT.
Naubinway around 105 AM EDT.
Other locations in the path of this severe thunderstorm include
Gilchrist, Garnet and Epoufette.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.
&&
LAT...LON 4624 8586 4624 8511 4601 8514 4601 8523
4605 8534 4604 8537 4605 8541 4604 8546
4605 8551 4596 8562 4601 8587
TIME...MOT...LOC 0449Z 296DEG 26KT 4615 8562
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$3 follow-up statements
310
WWUS53 KAPX 270500
SVSAPX
Severe Weather Statement
National Weather Service Gaylord MI
100 AM EDT Tue Jul 27 2021
MIC097-270530-
/O.CON.KAPX.SV.W.0019.000000T0000Z-210727T0530Z/
Mackinac MI-
100 AM EDT Tue Jul 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 AM EDT
FOR NORTHWESTERN MACKINAC COUNTY...
At 1259 AM EDT, a severe thunderstorm was located over Engadine, or
16 miles south of Newberry, moving southeast at 30 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
This severe storm will be near...
Naubinway around 105 AM EDT.
Gilchrist around 110 AM EDT.
Other locations in the path of this severe thunderstorm include
Garnet, Rexton and Epoufette.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.
&&
LAT...LON 4624 8586 4624 8511 4601 8514 4601 8523
4605 8534 4604 8537 4605 8541 4604 8546
4605 8551 4596 8562 4601 8587
TIME...MOT...LOC 0459Z 296DEG 26KT 4612 8552
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$540
WWUS53 KAPX 270510
SVSAPX
Severe Weather Statement
National Weather Service Gaylord MI
110 AM EDT Tue Jul 27 2021
MIC097-270530-
/O.CON.KAPX.SV.W.0019.000000T0000Z-210727T0530Z/
Mackinac MI-
110 AM EDT Tue Jul 27 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 AM EDT
FOR NORTHWESTERN MACKINAC COUNTY...
At 110 AM EDT, a severe thunderstorm was located over Gilchrist, or
19 miles south of Newberry, moving east at 35 mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
This severe storm will be near...
Garnet around 115 AM EDT.
Rexton around 120 AM EDT.
Other locations in the path of this severe thunderstorm include
Epoufette.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.
&&
LAT...LON 4624 8586 4624 8511 4601 8514 4601 8523
4605 8534 4604 8537 4605 8541 4604 8546
4605 8551 4596 8562 4601 8587
TIME...MOT...LOC 0510Z 290DEG 29KT 4609 8538
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH
$$060
WWUS53 KAPX 270521
SVSAPX
Severe Weather Statement
National Weather Service Gaylord MI
121 AM EDT Tue Jul 27 2021
MIC097-270530-
/O.EXP.KAPX.SV.W.0019.000000T0000Z-210727T0530Z/
Mackinac MI-
121 AM EDT Tue Jul 27 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN MACKINAC COUNTY
WILL EXPIRE AT 130 AM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
LAT...LON 4624 8586 4624 8511 4601 8514 4601 8523
4605 8534 4604 8537 4605 8541 4604 8546
4605 8551 4596 8562 4601 8587
TIME...MOT...LOC 0520Z 296DEG 26KT 4606 8530
$$The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 12:43 AM EDT | Special Weather Statement | APX | Mackinac | 47 min |
| Jul 27, 1:13 AM EDT | Special Marine Warning | APX | 32 min | |
| Jul 27, 2:17 AM EDT | Special Marine Warning | APX | 88 min | |
| Jul 27, 2:59 AM EDT | Special Weather Statement | APX | Cheboygan | 61 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.