Alert archive / Wisconsin / Winter Storm Warnings in 2021
Winter Storm Warning 6, NWS Duluth, MN
NWS Duluth, MN issued this winter storm warning at Dec 9, 2021, 2:19 PM CST for Iron County, Price County, Sawyer County, Wisconsin. It took effect at Dec 10, 2021, 12:00 PM CST. It was in force for 20 hr. 16 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 9, 2021, 2:19 PM CST (20:19 UTC)
- In effect from
- Dec 10, 2021, 12:00 PM CST
- Expired
- Dec 11, 2021, 7:54 AM CST
- In force
- 20 hr
- Issued by
- NWS Duluth, MN
Counties Iron County, WI, Price County, WI, Sawyer County, WI
The radar
The Duluth radar (KDLH), 158 km from the middle of the area, began a volume at 20:26 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 11, 1:40 AM CST | SNOW 3 | Gile, WI | |
| Dec 11, 4:00 AM CST | SNOW 12 | 1 E Spirit, WI | COCORAHS STATION WI-PR-7 BRANTWOOD 7.4 S. |
| Dec 11, 6:00 AM CST | SNOW 4.5 | 2 Wnw Seeley, WI | COCORAHS STATION WI-SR-1 HAYWARD 9.2 NNE. |
| Dec 11, 6:00 AM CST | SNOW 6 | 3 Sw Butternut, WI | CO-OP OBSERVER STATION BUTW3 BUTTERNUT 3 SW. |
| Dec 11, 6:00 AM CST | SNOW 10.3 | 1 S Phillips, WI | COCORAHS STATION WI-PR-6 PHILLIPS 1.3 S. |
| Dec 11, 6:30 AM CST | SNOW 7.9 | 6 Sw Butternut, WI | COCORAHS STATION WI-PR-2 BUTTERNUT 5.9 SW. |
| Dec 11, 7:00 AM CST | SNOW 5 | Pence, WI | COCORAHS STATION WI-IR-3 PENCE 0.1 E. |
| Dec 11, 7:00 AM CST | SNOW 7 | 1 N Park Falls, WI | COCORAHS STATION WI-PR-4 PARK FALLS 1.3 N. |
| Dec 11, 7:00 AM CST | SNOW 9 | 3 Sse Brantwood, WI | COCORAHS STATION WI-PR-14 BRANTWOOD 2.5 S. |
| Dec 11, 7:00 AM CST | SNOW 9 | 6 Se Phillips, WI | |
| Dec 11, 7:30 AM CST | SNOW 7 | 1 Nw Manitowish, WI | COCORAHS STATION WI-IR-2 MERCER 2.0 SE. |
| Dec 11, 7:43 AM CST | SNOW 8 | 4 Wnw Park Falls, WI | |
| Dec 11, 8:00 AM CST | SNOW 4.3 | 7 Nne Mercer, WI | COCORAHS STATION WI-IR-4 MERCER 7.0 NNE. |
| Dec 11, 8:00 AM CST | SNOW 5 | 1 Nw Hurley, WI | CO-OP OBSERVER STATION HURW3 HURLEY. |
| Dec 11, 8:00 AM CST | SNOW 6.2 | Mercer, WI | COCORAHS STATION WI-IR-5 MERCER 0.4 N. |
| Dec 11, 8:00 AM CST | SNOW 7 | Park Falls, WI | CO-OP OBSERVER STATION PKFW3 PARK FALLS. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.3 hours before the alert went out and 255 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
- 953 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 252 m²/s²
- 0-3 km storm-relative helicity
- 321 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
145 WWUS43 KDLH 092019 WSWDLH URGENT - WINTER WEATHER MESSAGE National Weather Service Duluth MN 219 PM CST Thu Dec 9 2021 WIZ009-100830- /O.UPG.KDLH.WS.A.0006.211210T1800Z-211211T1500Z/ /O.NEW.KDLH.WS.W.0006.211210T1800Z-211211T1500Z/ Price- Including the city of Phillips 219 PM CST Thu Dec 9 2021 ...WINTER STORM WARNING IN EFFECT FROM NOON FRIDAY TO 9 AM CST SATURDAY... * WHAT...Heavy snow expected. Total snow accumulations of 5 to 10 inches. * WHERE...Price County. * WHEN...From noon Friday to 9 AM CST Saturday. * IMPACTS...Travel could be very difficult. 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. The latest road conditions can be obtained by calling 5 1 1. Road conditions can also be found at 511mn.org for Minnesota or 511wi.gov for Wisconsin. && $$ WIZ008-100830- /O.UPG.KDLH.WS.A.0006.211210T1800Z-211211T1500Z/ /O.NEW.KDLH.WW.Y.0020.211210T1800Z-211211T1500Z/ Sawyer- Including the city of Hayward 219 PM CST Thu Dec 9 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON FRIDAY TO 9 AM CST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 5 inches. * WHERE...Sawyer County. This includes the Tribal Lands of the Lac Courte Oreilles Reservation. * WHEN...From noon Friday to 9 AM CST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. Road conditions can also be found at 511mn.org for Minnesota or 511wi.gov for Wisconsin. && $$ WIZ003-004-006-007-100830- /O.NEW.KDLH.WW.Y.0020.211210T1800Z-211211T1500Z/ Ashland-Iron-Burnett-Washburn- Including the cities of Ashland, Hurley, Grantsburg, and Spooner 219 PM CST Thu Dec 9 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON FRIDAY TO 9 AM CST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 5 inches, except up to one inch for northern Douglas and Bayfield counties. * WHERE...Ashland, Iron, Burnett and Washburn Counties. This includes the Tribal Lands of the Bad River Reservation. * WHEN...From noon Friday to 9 AM CST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. Road conditions can also be found at 511mn.org for Minnesota or 511wi.gov for Wisconsin. && $$ MNZ021-100400- /O.CON.KDLH.WW.Y.0019.000000T0000Z-211210T0400Z/ Southern Cook- Including the city of Grand Marais 219 PM CST Thu Dec 9 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM CST THIS EVENING... * WHAT...Snow. Additional snow accumulations of up to two inches. * WHERE...Southern Cook County. This includes the Tribal Lands of the Grand Portage Reservation. * WHEN...Until 10 PM CST this evening. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. Road conditions can also be found at 511mn.org for Minnesota or 511wi.gov for Wisconsin. && $$ For more information from the National Weather Service visit http://weather.gov/Duluth
7 follow-up statements
372 WWUS43 KDLH 100117 WSWDLH URGENT - WINTER WEATHER MESSAGE National Weather Service Duluth MN 717 PM CST Thu Dec 9 2021 MNZ021-100230- /O.CAN.KDLH.WW.Y.0019.000000T0000Z-211210T0400Z/ Southern Cook- Including the city of Grand Marais 717 PM CST Thu Dec 9 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Observation stations and webcams indicate that snow has largely come to an end over Cook County. Use caution if traveling as roads may still be slippery and snow covered. $$ WIZ009-101330- /O.CON.KDLH.WS.W.0006.211210T1800Z-211211T1500Z/ Price- Including the city of Phillips 717 PM CST Thu Dec 9 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON FRIDAY TO 9 AM CST SATURDAY... * WHAT...Heavy snow expected. Total snow accumulations of 5 to 10 inches. * WHERE...Price County. * WHEN...From noon Friday to 9 AM CST Saturday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1. Road conditions can also be found at 511mn.org for Minnesota or 511wi.gov for Wisconsin. && $$ WIZ003-004-006>008-101330- /O.CON.KDLH.WW.Y.0020.211210T1800Z-211211T1500Z/ Ashland-Iron-Burnett-Washburn-Sawyer- Including the cities of Ashland, Hurley, Grantsburg, Spooner, and Hayward 717 PM CST Thu Dec 9 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO 9 AM CST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 3 to 5 inches. * WHERE...Sawyer, Iron, Burnett, Washburn and Ashland Counties. This includes the Tribal Lands of the Lac Courte Oreilles Reservation and the Bad River Reservation. * WHEN...From noon Friday to 9 AM CST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. Road conditions can also be found at 511mn.org for Minnesota or 511wi.gov for Wisconsin. && $$ For more information from the National Weather Service visit http://weather.gov/Duluth
428 WWUS43 KDLH 100353 WSWDLH URGENT - WINTER WEATHER MESSAGE National Weather Service Duluth MN 953 PM CST Thu Dec 9 2021 WIZ009-101600- /O.CON.KDLH.WS.W.0006.211210T1800Z-211211T1500Z/ Price- Including the city of Phillips 953 PM CST Thu Dec 9 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON FRIDAY TO 9 AM CST SATURDAY... * WHAT...Heavy snow expected. Total snow accumulations of 7 to 11 inches. * WHERE...Price County. * WHEN...From noon Friday to 9 AM CST Saturday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1. Road conditions can also be found at 511mn.org for Minnesota or 511wi.gov for Wisconsin. && $$ WIZ003-004-006>008-101600- /O.CON.KDLH.WW.Y.0020.211210T1800Z-211211T1500Z/ Ashland-Iron-Burnett-Washburn-Sawyer- Including the cities of Ashland, Hurley, Grantsburg, Spooner, and Hayward 953 PM CST Thu Dec 9 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO 9 AM CST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 7 inches. * WHERE...Sawyer, Iron, Burnett, Washburn and Ashland Counties. This includes the Tribal Lands of the Lac Courte Oreilles Reservation and the Bad River Reservation. * WHEN...From noon Friday to 9 AM CST Saturday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. Road conditions can also be found at 511mn.org for Minnesota or 511wi.gov for Wisconsin. && $$ For more information from the National Weather Service visit http://weather.gov/Duluth
348 WWUS43 KDLH 100909 WSWDLH URGENT - WINTER WEATHER MESSAGE National Weather Service Duluth MN 309 AM CST Fri Dec 10 2021 WIZ004-008-102115- /O.UPG.KDLH.WW.Y.0020.211210T1800Z-211211T1500Z/ /O.EXA.KDLH.WS.W.0006.211210T1800Z-211211T1500Z/ Iron-Sawyer- Including the cities of Hurley and Hayward 309 AM CST Fri Dec 10 2021 ...WINTER STORM WARNING IN EFFECT FROM NOON TODAY TO 9 AM CST SATURDAY... * WHAT...Heavy snow expected. Total snow accumulations of 4 to 8 inches, except 3 to 6 inches for northern Iron and Sawyer county. * WHERE...Iron and Sawyer Counties. This includes the Tribal Lands of the Lac Courte Oreilles Reservation. * WHEN...From noon today to 9 AM CST Saturday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1. Road conditions for Wisconsin can also be found at 511wi.gov. && $$ WIZ009-102115- /O.CON.KDLH.WS.W.0006.211210T1800Z-211211T1500Z/ Price- Including the city of Phillips 309 AM CST Fri Dec 10 2021 ...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 AM CST SATURDAY... * WHAT...Heavy snow expected. Total snow accumulations of 7 to 11 inches. * WHERE...Price County. * WHEN...From noon today to 9 AM CST Saturday. * IMPACTS...Travel could be very difficult. 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. The latest road conditions can be obtained by calling 5 1 1. Road conditions for Wisconsin can also be found at 511wi.gov. && $$ WIZ002-102115- /O.EXA.KDLH.WW.Y.0020.211210T1800Z-211211T1500Z/ Bayfield- Including the cities of Washburn and Bayfield 309 AM CST Fri Dec 10 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON TODAY TO 9 AM CST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 4 inches. * WHERE...Bayfield County. This includes the Tribal Lands of the Red Cliff Band. * WHEN...From noon today to 9 AM CST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. Road conditions for Wisconsin can also be found at 511wi.gov. && $$ WIZ003-006-007-102115- /O.CON.KDLH.WW.Y.0020.211210T1800Z-211211T1500Z/ Ashland-Burnett-Washburn- Including the cities of Ashland, Grantsburg, and Spooner 309 AM CST Fri Dec 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 9 AM CST SATURDAY... * WHAT...Snow expected. Total snow accumulations of 2 to 5 inches, except 1 to 3 inches for northern Bayfield county. * WHERE...Burnett, Washburn and Ashland Counties. This includes the Tribal Lands of the Bad River Reservation. * WHEN...From noon today to 9 AM CST Saturday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. Road conditions for Wisconsin can also be found at 511wi.gov. && $$ For more information from the National Weather Service visit http://weather.gov/Duluth
710 WWUS43 KDLH 102059 WSWDLH URGENT - WINTER WEATHER MESSAGE National Weather Service Duluth MN 259 PM CST Fri Dec 10 2021 WIZ004-008-009-110900- /O.CON.KDLH.WS.W.0006.000000T0000Z-211211T1500Z/ Iron-Sawyer-Price- Including the cities of Hurley, Hayward, and Phillips 259 PM CST Fri Dec 10 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST SATURDAY... * WHAT...Heavy snow. Additional snow accumulations of 8 to 12 inches, except 3 to 7 inches for northern Iron and Sawyer counties. * WHERE...Sawyer, Price and Iron Counties. This includes the Tribal Lands of the Lac Courte Oreilles Reservation. * WHEN...Until 9 AM CST Saturday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1. Road conditions can also be found at 511mn.org for Minnesota or 511wi.gov for Wisconsin. && $$ WIZ002-003-006-007-110900- /O.CON.KDLH.WW.Y.0020.000000T0000Z-211211T1500Z/ Bayfield-Ashland-Burnett-Washburn- Including the cities of Washburn, Bayfield, Ashland, Grantsburg, and Spooner 259 PM CST Fri Dec 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST SATURDAY... * WHAT...Snow. Additional snow accumulations of 3 to 7 inches, except up to two inches for northern Ashland, Bayfield, Washburn, and Burnett counties. * WHERE...Burnett, Washburn, Bayfield and Ashland Counties. This includes the Tribal Lands of the Red Cliff Band and the Bad River Reservation. * WHEN...Until 9 AM CST Saturday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. Road conditions can also be found at 511mn.org for Minnesota or 511wi.gov for Wisconsin. && $$ For more information from the National Weather Service visit http://weather.gov/Duluth
104 WWUS43 KDLH 110335 WSWDLH URGENT - WINTER WEATHER MESSAGE National Weather Service Duluth MN 935 PM CST Fri Dec 10 2021 WIZ004-008-009-111500- /O.CON.KDLH.WS.W.0006.000000T0000Z-211211T1500Z/ Iron-Sawyer-Price- Including the cities of Hurley, Hayward, and Phillips 935 PM CST Fri Dec 10 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST SATURDAY... * WHAT...Heavy snow. Additional snow accumulations of 8 to 12 inches, except 3 to 7 inches for northern Iron and Sawyer counties. * WHERE...Sawyer, Price and Iron Counties. This includes the Tribal Lands of the Lac Courte Oreilles Reservation. * WHEN...Until 9 AM CST Saturday. * IMPACTS...Travel could be very difficult to impossible. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1. Road conditions can also be found at 511mn.org for Minnesota or 511wi.gov for Wisconsin. && $$ WIZ002-003-006-007-111500- /O.CON.KDLH.WW.Y.0020.000000T0000Z-211211T1500Z/ Bayfield-Ashland-Burnett-Washburn- Including the cities of Washburn, Bayfield, Ashland, Grantsburg, and Spooner 935 PM CST Fri Dec 10 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST SATURDAY... * WHAT...Snow. Additional snow accumulations of 3 to 7 inches, except up to two inches for northern Ashland, Bayfield, Washburn, and Burnett counties. * WHERE...Burnett, Washburn, Bayfield and Ashland Counties. This includes the Tribal Lands of the Red Cliff Band and the Bad River Reservation. * WHEN...Until 9 AM CST Saturday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the evening commute. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. Road conditions can also be found at 511mn.org for Minnesota or 511wi.gov for Wisconsin. && $$ For more information from the National Weather Service visit http://weather.gov/Duluth
719 WWUS43 KDLH 111232 WSWDLH URGENT - WINTER WEATHER MESSAGE National Weather Service Duluth MN 632 AM CST Sat Dec 11 2021 WIZ002-006-007-111345- /O.CAN.KDLH.WW.Y.0020.000000T0000Z-211211T1500Z/ Bayfield-Burnett-Washburn- Including the cities of Washburn, Bayfield, Grantsburg, and Spooner 632 AM CST Sat Dec 11 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Snow has ended across Bayfield, Burnett and Washburn counties. $$ WIZ004-008-009-111500- /O.CON.KDLH.WS.W.0006.000000T0000Z-211211T1500Z/ Iron-Sawyer-Price- Including the cities of Hurley, Hayward, and Phillips 632 AM CST Sat Dec 11 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... * WHAT...Snow. Additional snow accumulations of up to one inch. * WHERE...Sawyer, Price and Iron Counties. This includes the Tribal Lands of the Lac Courte Oreilles Reservation. * WHEN...Until 9 AM CST this morning. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions can be obtained by calling 5 1 1. Road conditions can also be found at 511mn.org for Minnesota or 511wi.gov for Wisconsin. && $$ WIZ003-111500- /O.CON.KDLH.WW.Y.0020.000000T0000Z-211211T1500Z/ Ashland- Including the city of Ashland 632 AM CST Sat Dec 11 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... * WHAT...Snow. Additional snow accumulations of up to one inch. * WHERE...Ashland County. This includes the Tribal Lands of the Bad River Reservation. * WHEN...Until 9 AM CST this morning. * IMPACTS...Plan on slippery road conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. Road conditions can also be found at 511mn.org for Minnesota or 511wi.gov for Wisconsin. && $$ BJH For more information from the National Weather Service visit http://weather.gov/Duluth
125 WWUS43 KDLH 111354 WSWDLH URGENT - WINTER WEATHER MESSAGE National Weather Service Duluth MN 754 AM CST Sat Dec 11 2021 WIZ004-008-009-111500- /O.CAN.KDLH.WS.W.0006.000000T0000Z-211211T1500Z/ Iron-Sawyer-Price- Including the cities of Hurley, Hayward, and Phillips 754 AM CST Sat Dec 11 2021 ...WINTER STORM WARNING IS CANCELLED... Accumulating snow has ended across the area. $$ WIZ003-111500- /O.CAN.KDLH.WW.Y.0020.000000T0000Z-211211T1500Z/ Ashland- Including the city of Ashland 754 AM CST Sat Dec 11 2021 ...WINTER WEATHER ADVISORY IS CANCELLED... Accumulating snow has ended across the area. $$ BJH For more information from the National Weather Service visit http://weather.gov/Duluth
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Duluth, MN wrote its last area forecast discussion before this winter storm warning went out at Dec 9, 11:46 AM CST, 2 hours 33 minutes earlier.
Area forecast discussion, Dec 9, 11:46 AM CST, 2 hours 33 minutes before
Area Forecast Discussion
National Weather Service Duluth MN
1146 AM CST Thu Dec 9 2021
.DISCUSSION...(This afternoon through Wednesday)
Issued at 646 AM CST Thu Dec 9 2021
Summary...An active week of weather is expected. A shortwave
moving across the area today will bring light snow to the area
through this evening. Heavier snow due to lake effect/enhancements
should continue to affect southern Cook county this morning.
Attention then turns to a stronger system for Friday through
Saturday, which has the potential to produce significant snowfall
for parts of northwest Wisconsin. The weather quiets down through
early next week, but with potential for another winter storm
system for the middle part of next week.
The shortwave we have been monitoring is in the process of moving
across the area this morning, and is expected to continue to move
through the area today. The south flow across Lake Superior is
expected to produce lake effects or at least enhancement for
higher snowfall totals along the North Shore, predominantly for
the southern Cook zone. There will be some enhancements farther
south along the North Shore and farther inland as well, but I
expect the highest snowfall totals for the southern Cook zone,
where 3 to 6 inches are possible. We have a lot of radar returns
around the area right now, but we are only seeing ground truth for
the band that is draped across the Iron Range and east out over
the lake, though this is just in the last few hours. Considering
the significant dry layers on the 00z KINL and KGRB soundings we
have had some saturation issues with the relatively dry air at the
lowest levels that has had to be overcome overnight. Now that the
snow is beginning to reach the ground, I expect accumulations to
start piling up along the North Shore for the next few hours.
Attention now turns to the system for Friday through Saturday,
which we have been watching for a few days now. As compared to
yesterday, the track has shifted back north again, and now we are
looking at plowable snowfall amounts once again for parts of
northwest Wisconsin. We will be on the north side of this system,
so we do not have any precipitation type issues, and all snow
should fall across northern Wisconsin counties. Snowfall amounts
have crept back up over 6 inches for much of Price county with
lighter amounts to the north, with little if any snow expected
around the Twin Ports. The strong surface low starts out Friday
morning over eastern Colorado, rolling east along the mid level
baroclinic zone, moving across Iowa by Friday evening, then
northeast across northern lower Michigan by Saturday morning. The
models have come to a fairly good consensus on this, so we have
increasing confidence on the potential for significant snowfall,
so a Winter Storm Watch has been issued for parts of northwest
Wisconsin.
After another round of cold temperatures for Friday and Saturday
nights, there should be a gradual warm-up through mid week. Am
concerned that the current NBM values are too warm during this
time range, given our recent snowfall, despite the strong warm air
advection aloft. I anticipate needing to lower these values as we
get closer in time to them.
The models are indicating another potential for a winter storm in
the Wednesday-Thursday time range. However, there are a lot of
differences between the models, and we are going to have to wait
and see for the details on this system.
&&
.AVIATION...(For the 18Z TAFS through 18Z Friday afternoon)
Issued at 1146 AM CST Thu Dec 9 2021
Low pressure will cause a messy weather pattern across the area
today with a variety of flight categories. Snow showers will
temporarily reduce vsbys in HYR to LIFR within the next hour. Model
guidance has an MVFR stratus deck propagating through this
afternoon. There are hints of embedded IFR cigs within that stratus
deck, but these IFR cigs appear to be sporadic. HIB and INL would be
the most likely to see any IFR cigs this afternoon, but confidence
wasn't high enough to reduce category at this time. As the low
pressure exits the area, expect conditions to improve to VFR and
remain VFR tonight and into tomorrow morning.
&&
.MARINE...
Issued at 1046 AM CST Thu Dec 9 2021
Winds are out of the south at 10 to 15 knots with gusts to near
25 knots with isolated 30 to 35 knot winds. Holding off on a Gale
Warning at the moment as it is thought that the winds are transient
in nature and will decreasing within the next hour or two. By
this evening winds will switch around to the southwest at 15 to
20 knots with gusts to 25 knots. A Small Craft Advisory is in
effect until tomorrow morning for Grand Portage to Silver Bay and
Port Wing eastward to Saxon Harbor. Winds are expected to switch
to the west late this evening and decrease towards morning.
&&
.PRELIMINARY POINT TEMPS/POPS...
DLH 30 15 29 16 / 70 0 20 30
INL 28 12 27 7 / 40 0 0 0
BRD 33 16 30 15 / 20 0 20 20
HYR 31 14 31 18 / 70 0 60 80
ASX 32 16 31 22 / 80 0 50 70
&&
.DLH WATCHES/WARNINGS/ADVISORIES...
WI...Winter Storm Watch from Friday afternoon through Saturday
morning for WIZ008-009.
MN...Winter Weather Advisory until 10 PM CST this evening for MNZ021.
LS...Small Craft Advisory until 4 AM CST Friday for LSZ140>142-146-
147-150.
Small Craft Advisory from 8 PM this evening to 3 AM CST Friday
for LSZ143.
Small Craft Advisory until 4 PM CST this afternoon for LSZ148.
&&
DISCUSSION...LE
AVIATION...Unruh
MARINE...KSEHazardous weather outlook, Dec 9, 5:17 AM CST, 9 hours 2 minutes before
Hazardous Weather Outlook National Weather Service Duluth MN 517 AM CST Thu Dec 9 2021 MNZ012-021-101130- Northern Cook/Northern Lake-Southern Cook/North Shore- 517 AM CST Thu Dec 9 2021 This Hazardous Weather Outlook is for portions of northeast Minnesota. .DAY ONE...Today and Tonight Light snow will continue across the Northland Thursday. Widespread snow amounts of up to an inch are expected. Areas along the North Shore will see higher amounts of 4 to 6 inches and a Winter Weather Advisory has been issued for Southern Cook County. Locally higher snowfall amounts are possible along the higher elevations of Cook County. .DAYS TWO THROUGH SEVEN...Friday through Wednesday The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Snow spotters are requested to report their snowfall measurements to the National Weather Service. MNZ010-011-018>020-025-026-033>038-WIZ001>004-006>009-101130- Koochiching-North St. Louis-North Itasca-Central St. Louis- Southern Lake/North Shore-North Cass-South Itasca-South Cass- Crow Wing-Northern Aitkin-South Aitkin-Carlton/South St. Louis- Pine-Douglas-Bayfield-Ashland-Iron-Burnett-Washburn-Sawyer-Price- 517 AM CST Thu Dec 9 2021 This Hazardous Weather Outlook is for portions of northeast Minnesota and northwest Wisconsin. .DAY ONE...Today and Tonight No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Friday through Wednesday A storm system is forecast to move through the region Friday afternoon into Saturday. Confidence in accumulating snow is increasing for parts of northwest Wisconsin especially across Price, Sawyer, Ashland and Iron counties. A Winter Storm Watch has been issued for part of northwest Wisconsin. .SPOTTER INFORMATION STATEMENT... Snow spotters are requested to report their snowfall measurements to the National Weather Service. LSZ121-140>148-150-101130- Bayfield to Oak Point WI-Grand Portage to Grand Marais MN- Grand Marais to Taconite Harbor MN- Taconite Harbor to Silver Bay Harbor MN- Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN- Duluth MN to Port Wing WI-Port Wing to Sand Island WI- Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI- Outer Apostle Islands Beyond 5 NM from Mainland- 517 AM CST Thu Dec 9 2021 This Hazardous Weather Outlook is for portions of Lake Superior and the Nearshore waters of western Lake Superior. .DAY ONE...Today and Tonight Gusty south to southwest winds will continue today and tonight and produce hazardous conditions for small craft along parts of the North and South Shores. Small Craft Advisories remain in effect into tonight. .DAYS TWO THROUGH SEVEN...Friday through Wednesday An area of low pressure will move through the region Saturday and as it exits may create a period of hazardous winds and waves Saturday into Sunday. BJH More information may be obtained at the following web address: http://www.weather.gov/duluth (all lower case)
In the hours before
Local storm report, Dec 9, 11:30 AM CST, 2 hours 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
1130 AM CST THU DEC 9 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1123 AM SNOW 4 W GRAND MARAIS 47.75N 90.44W
12/09/2021 E4.0 INCH COOK MN TRAINED SPOTTER
PHOTO SENT IN VIA SOCIAL MEDIA SHOWING
APPROXIMATELY 4 INCHES OF SNOW.
&&
WFULocal storm report, Dec 9, 12:50 PM CST, 1 hour 29 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
1250 PM CST THU DEC 9 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1120 AM SNOW ODANAH 46.60N 90.68W
12/09/2021 M1.5 INCH ASHLAND WI TRAINED SPOTTER
HEAVY SNOW WAS STILL FALLING AT THE TIME OF
THE REPORT.
&&
WFULocal storm report, Dec 9, 2:07 PM CST, 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DULUTH MN
207 PM CST THU DEC 9 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0206 PM SNOW 4 WSW GRAND MARAIS 47.73N 90.42W
12/09/2021 M4.0 INCH LSZ141 MN TRAINED SPOTTER
SNOW WAS STILL FALLING AT THE TIME OF THE
REPORT.
&&
WFUThe office that day
Everything else NWS Duluth, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 9, 3:39 AM CST | Winter Storm Watch | DLH | Price, Sawyer | 11 hr |
| Dec 9, 2:19 PM CST | Winter Weather Advisory | DLH | Ashland, Bayfield, Burnett, Iron, Sawyer, Washburn | 42 hr |
Nearby
Winter Storm Warnings in Wisconsin, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.