Alert archive / Michigan / Winter Storm Warnings in 2021
Winter Storm Warning 7, NWS Gaylord, MI
NWS Gaylord, MI issued this winter storm warning at Dec 20, 2021, 3:36 PM EST for Mackinac County, Michigan. It took effect at Dec 21, 2021, 12:00 PM EST. It was in force for 10 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Dec 20, 2021, 3:36 PM EST (20:36 UTC)
- In effect from
- Dec 21, 2021, 12:00 PM EST
- Expired
- Dec 21, 2021, 10:00 PM EST
- In force
- 10 hr
- Issued by
- NWS Gaylord, MI
County Mackinac County, MI
The radar
The NCL Michigan radar (KAPX), 107 km from the middle of the area, began a volume at 20:37 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 12:00Z, 8.6 hours before the alert went out and 205 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 620 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 401 m²/s²
- 0-3 km storm-relative helicity
- 421 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
679 WWUS43 KAPX 202036 WSWAPX URGENT - WINTER WEATHER MESSAGE National Weather Service Gaylord MI 336 PM EST Mon Dec 20 2021 MIZ095-210445- /O.NEW.KAPX.WS.W.0007.211221T1700Z-211222T0100Z/ Western Mackinac- Including the cities of Engadine, Naubinway, and Epoufette 336 PM EST Mon Dec 20 2021 ...WINTER STORM WARNING IN EFFECT FROM NOON TO 8 PM EST TUESDAY... * WHAT...Heavy snow expected. Total snow accumulations of 5 to 8 inches with locally higher amounts possible. * WHERE...Western Mackinac County. * WHEN...From noon to 8 PM EST Tuesday. * IMPACTS...Plan on slippery road conditions and reductions in visibility. High snowfall rates in excess of 1" per hour will be possible during the evening commute, leading to quick snow accumulations on roadways. Hazardous travel conditions are expected, especially along US-2. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. && $$ MIZ086>088-096-098-210445- /O.NEW.KAPX.WW.Y.0032.211221T1700Z-211222T0100Z/ Western Chippewa-Central Chippewa-Southeast Chippewa- Eastern Mackinac-Beaver Island and surrounding islands- Including the cities of Paradise, Trout Lake, Rudyard, Sault Ste. Marie, Brimley, Kinross, Sugar Island, Detour Village, Goetzville, Drummond Island, St. Ignace, Brevort, Les Cheneaux Islands, and St. James 336 PM EST Mon Dec 20 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TO 8 PM EST TUESDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 5 inches. * WHERE...Western Chippewa, Central Chippewa, Southeast Chippewa, Eastern Mackinac and Beaver Island and surrounding islands Counties. * WHEN...From noon to 8 PM EST Tuesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. && $$ http://www.weather.gov/gaylord
4 follow-up statements
083 WWUS43 KAPX 210741 WSWAPX URGENT - WINTER WEATHER MESSAGE National Weather Service Gaylord MI 241 AM EST Tue Dec 21 2021 MIZ095-220100- /O.CON.KAPX.WS.W.0007.211221T1700Z-211222T0100Z/ Western Mackinac- Including the cities of Engadine, Naubinway, and Epoufette 241 AM EST Tue Dec 21 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM EST THIS EVENING... * WHAT...Heavy snow expected. Total snow accumulations of 3 to 6 inches...with locally heavier amounts possible. * WHERE...Western Mackinac County. * WHEN...From noon today to 8 PM EST this evening. * IMPACTS...Plan on slippery road conditions and reductions in visibility. High snowfall rates in excess of 1" per hour will be possible during the evening commute, leading to quick snow accumulations on roadways. Hazardous travel conditions are expected, especially along US-2. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. && $$ MIZ086>088-096-098-220100- /O.CON.KAPX.WW.Y.0032.211221T1700Z-211222T0100Z/ Western Chippewa-Central Chippewa-Southeast Chippewa- Eastern Mackinac-Beaver Island and surrounding islands- Including the cities of Paradise, Trout Lake, Rudyard, Sault Ste. Marie, Brimley, Kinross, Sugar Island, Detour Village, Goetzville, Drummond Island, St. Ignace, Brevort, Les Cheneaux Islands, and St. James 241 AM EST Tue Dec 21 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM EST THIS EVENING... * WHAT...Snow expected. Total snow accumulations of 2 to 5 inches. * WHERE...Western Chippewa, Beaver Island and surrounding islands, Southeast Chippewa, Central Chippewa and Eastern Mackinac Counties. * WHEN...From noon today to 8 PM EST this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. && $$ http://www.weather.gov/gaylord
896 WWUS43 KAPX 211709 WSWAPX URGENT - WINTER WEATHER MESSAGE National Weather Service Gaylord MI 1209 PM EST Tue Dec 21 2021 MIZ095-220115- /O.EXT.KAPX.WS.W.0007.000000T0000Z-211222T0300Z/ Western Mackinac- Including the cities of Engadine, Naubinway, and Epoufette 1209 PM EST Tue Dec 21 2021 ...WINTER STORM WARNING NOW IN EFFECT UNTIL 10 PM EST THIS EVENING... * WHAT...Heavy snow. Snow accumulations of 3 to 5 inches. * WHERE...Western Mackinac County. * WHEN...Until 10 PM EST this evening. * IMPACTS...Plan on slippery road conditions and low visibility. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. && $$ MIZ086>088-096-098-220115- /O.EXT.KAPX.WW.Y.0032.000000T0000Z-211222T0300Z/ Western Chippewa-Central Chippewa-Southeast Chippewa- Eastern Mackinac-Beaver Island and surrounding islands- Including the cities of Paradise, Trout Lake, Rudyard, Sault Ste. Marie, Brimley, Kinross, Sugar Island, Detour Village, Goetzville, Drummond Island, St. Ignace, Brevort, Les Cheneaux Islands, and St. James 1209 PM EST Tue Dec 21 2021 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 10 PM EST THIS EVENING... * WHAT...Snow. Snow accumulations of 2 to 4 inches. * WHERE...Western Chippewa, Beaver Island and surrounding islands, Southeast Chippewa, Central Chippewa and Eastern Mackinac Counties. * WHEN...Until 10 PM EST this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. && $$ http://www.weather.gov/gaylord
899 WWUS43 KAPX 212114 WSWAPX URGENT - WINTER WEATHER MESSAGE National Weather Service Gaylord MI 414 PM EST Tue Dec 21 2021 MIZ095-220300- /O.CON.KAPX.WS.W.0007.000000T0000Z-211222T0300Z/ Western Mackinac- Including the cities of Engadine, Naubinway, and Epoufette 414 PM EST Tue Dec 21 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... * WHAT...Heavy snow. Additional snow accumulations of 2 to 5 inches. * WHERE...Western Mackinac County. * WHEN...Until 10 PM EST this evening. * IMPACTS...Plan on slippery road conditions and very low visibility. The hazardous conditions will impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. && $$ MIZ086>088-096-098-220300- /O.CON.KAPX.WW.Y.0032.000000T0000Z-211222T0300Z/ Western Chippewa-Central Chippewa-Southeast Chippewa- Eastern Mackinac-Beaver Island and surrounding islands- Including the cities of Paradise, Trout Lake, Rudyard, Sault Ste. Marie, Brimley, Kinross, Sugar Island, Detour Village, Goetzville, Drummond Island, St. Ignace, Brevort, Les Cheneaux Islands, and St. James 414 PM EST Tue Dec 21 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... * WHAT...Snow. Additional snow accumulations of 2 to 3 inches. * WHERE...Western Chippewa, Beaver Island and surrounding islands, Southeast Chippewa, Central Chippewa and Eastern Mackinac Counties. * WHEN...Until 10 PM EST this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. && $$ http://www.weather.gov/gaylord
404 WWUS43 KAPX 220032 WSWAPX URGENT - WINTER WEATHER MESSAGE National Weather Service Gaylord MI 732 PM EST Tue Dec 21 2021 MIZ095-220300- /O.CON.KAPX.WS.W.0007.000000T0000Z-211222T0300Z/ Western Mackinac- Including the cities of Engadine, Naubinway, and Epoufette 732 PM EST Tue Dec 21 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... * WHAT...Heavy snow. Additional snow accumulations of 2 to 5 inches. * WHERE...Western Mackinac County. * WHEN...Until 10 PM EST this evening. * IMPACTS...Plan on slippery road conditions and very low visibility. The hazardous conditions will impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. && $$ MIZ086>088-096-098-220300- /O.CON.KAPX.WW.Y.0032.000000T0000Z-211222T0300Z/ Western Chippewa-Central Chippewa-Southeast Chippewa- Eastern Mackinac-Beaver Island and surrounding islands- Including the cities of Paradise, Trout Lake, Rudyard, Sault Ste. Marie, Brimley, Kinross, Sugar Island, Detour Village, Goetzville, Drummond Island, St. Ignace, Brevort, Les Cheneaux Islands, and St. James 732 PM EST Tue Dec 21 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM EST THIS EVENING... * WHAT...Snow. Additional snow accumulations of 2 to 3 inches. * WHERE...Western Chippewa, Beaver Island and surrounding islands, Southeast Chippewa, Central Chippewa and Eastern Mackinac Counties. * WHEN...Until 10 PM EST this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. && $$ http://www.weather.gov/gaylord
The office that day
Everything else NWS Gaylord, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 20, 3:36 PM EST | Winter Weather Advisory | APX | Charlevoix, Chippewa, Mackinac | 30 hr |
Nearby
Winter Storm Warnings in Michigan, 2021Every winter storm 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.