Alert archive / Wisconsin / Winter Storm Warnings in 2020
Winter Storm Warning 4, NWS Duluth, MN
NWS Duluth, MN issued this winter storm warning at Apr 11, 2020, 3:04 PM CDT for 6 counties in Wisconsin. It took effect at Apr 12, 2020, 1:00 PM CDT. It was in force for 24 hr. 50 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
- Apr 11, 2020, 3:04 PM CDT (20:04 UTC)
- In effect from
- Apr 12, 2020, 1:00 PM CDT
- Expired
- Apr 13, 2020, 1:00 PM CDT
- In force
- 24 hr
- Issued by
- NWS Duluth, MN
Counties Ashland County, WI, Bayfield County, WI, Iron County, WI, Price County, WI, Sawyer County, WI, Washburn County, WI
The radar
The Duluth radar (KDLH), 125 km from the middle of the area, began a volume at 20:04 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 |
|---|---|---|---|
| Apr 12, 4:00 PM CDT | SNOW 2 | 4 Sw Northwoods Beach, WI | CO-OP OBSERVER STATION COUW3 4.0 SW NORTHWOODS BEACH. |
| Apr 12, 4:28 PM CDT | HEAVY SNOW 6.5 | 7 Nw Phillips, WI | BEGAN AT 7:00 AM. STILL SNOWING AT A MODERATE TO HEAVY RATE. |
| Apr 12, 5:15 PM CDT | HEAVY SNOW 5.8 | 1 Sse Phillips, WI | STILL SNOWING. |
| Apr 12, 5:16 PM CDT | SNOW 2 | 1 N Gile, WI | MODERATE SNOWFALL STILL OVER THE AREA. ROADS ARE CURRENTLY SLUSHY. |
| Apr 12, 5:30 PM CDT | SNOW 5 | 6 Sw Butternut, WI | |
| Apr 12, 6:00 PM CDT | SNOW 1.5 | Upson, WI | CO-OP OBSERVER STATION UPSW3 UPSON. |
| Apr 12, 7:00 PM CDT | SNOW 5.2 | 1 Nw Manitowish, WI | |
| Apr 12, 7:06 PM CDT | HEAVY SNOW 8 | 3 W Phillips, WI | STILL EXPERIENCING STEADY SNOWFALL. |
| Apr 12, 7:50 PM CDT | SNOW 3 | 3 Ne Glidden, WI | |
| Apr 12, 7:53 PM CDT | SNOW 1.5 | 3 E Mason, WI | LITTLE SNOW ACCUMULATION ON GRAVEL SURFACES. |
| Apr 12, 8:03 PM CDT | SNOW 3 | 3 Ne Cable, WI | |
| Apr 12, 8:09 PM CDT | SNOW 2 | 7 Wnw Trego, WI | |
| Apr 12, 8:10 PM CDT | SNOW 4 | 2 Wsw Hayward, WI | |
| Apr 12, 8:11 PM CDT | SNOW 3 | 1 Ene Radisson, WI | |
| Apr 12, 8:11 PM CDT | SNOW 5 | 3 Ese Ojibwa, WI | |
| Apr 12, 8:12 PM CDT | SNOW 1.5 | 5 W Washburn, WI | |
| Apr 12, 8:57 PM CDT | SNOW 7.9 | 1 S Phillips, WI | |
| Apr 12, 9:36 PM CDT | SNOW 2.1 | Ashland, WI | |
| Apr 12, 11:20 PM CDT | SNOW 4 | Gile, WI | CORRECTS PREVIOUS SNOW REPORT THAT WAS SENT AS 1 N GILE. MODERATE SNOWFALL STILL OVER THE AREA. ROADS ARE CURRENTLY SLUSHY. 2.0 INCHES AT 5:16 ADDITIONAL 2.0 INCHES AT 11:20. |
| Apr 13, 12:01 AM CDT | HEAVY SNOW 16 | Gile, WI | UPDATES PREVIOUS HEAVY SNOW REPORT FROM GILE. SNOW STARTING TO DISSIPATE AT TIME OF OBSERVATION. |
| Apr 13, 5:00 AM CDT | SNOW 7 | 1 E Spirit, WI | COCORAHS STATION WI-PR-7 BRANTWOOD 7.4 S. |
| Apr 13, 5:00 AM CDT | HEAVY SNOW 7 | 1 E Spirit, WI | CORRECTS PREVIOUS SNOW REPORT FROM 1 E SPIRIT. COCORAHS STATION WI-PR-7 BRANTWOOD 7.4 S. |
| Apr 13, 6:00 AM CDT | SNOW 10.5 | 3 Nnw Butternut, WI | CO-OP OBSERVER STATION BUTW3 BUTTERNUT 3 N. |
| Apr 13, 6:00 AM CDT | HEAVY SNOW 10.5 | 3 Nnw Butternut, WI | CORRECTS PREVIOUS SNOW REPORT FROM 3 NNW BUTTERNUT. CO-OP OBSERVER STATION BUTW3 BUTTERNUT 3 N. |
| Apr 13, 7:00 AM CDT | SNOW 2 | 5 S Herbster, WI | STORM TOTAL SNOW. |
| Apr 13, 7:00 AM CDT | SNOW 3.4 | 2 N Moquah, WI | COCORAHS STATION WI-BY-14 ASHLAND 9.8 W. |
| Apr 13, 7:00 AM CDT | SNOW 4.3 | 2 Wnw Seeley, WI | COCORAHS STATION WI-SR-1 HAYWARD 9.2 NNE. |
| Apr 13, 7:00 AM CDT | SNOW 9.3 | 1 S Phillips, WI | COCORAHS STATION WI-PR-6 PHILLIPS 1.3 S. |
| Apr 13, 7:00 AM CDT | HEAVY SNOW 9.3 | 1 S Phillips, WI | CORRECTS PREVIOUS SNOW REPORT FROM 1 S PHILLIPS. COCORAHS STATION WI-PR-6 PHILLIPS 1.3 S. |
| Apr 13, 7:02 AM CDT | SNOW 5.8 | 3 Wnw Clam Lake, WI | CO-OP OBSERVER STATION CMKW3 CLAM LAKE 4W. |
| Apr 13, 7:30 AM CDT | SNOW 7 | 6 Sw Butternut, WI | COCORAHS STATION WI-PR-2 BUTTERNUT 5.9 SW. |
| Apr 13, 7:30 AM CDT | HEAVY SNOW 7 | 6 Sw Butternut, WI | CORRECTS PREVIOUS SNOW REPORT FROM 6 SW BUTTERNUT. COCORAHS STATION WI-PR-2 BUTTERNUT 5.9 SW. |
| Apr 13, 7:58 AM CDT | HEAVY SNOW 8 | 7 E Phillips, WI | |
| Apr 13, 7:59 AM CDT | SNOW 3.3 | 4 Nnw New Post, WI | |
| Apr 13, 8:00 AM CDT | SNOW 2.2 | 3 S Ashland, WI | |
| Apr 13, 8:00 AM CDT | SNOW 2.3 | 1 E Spooner, WI | |
| Apr 13, 8:00 AM CDT | HEAVY SNOW 10 | 1 Wnw Prentice, WI | CORRECTS PREVIOUS SNOW REPORT FROM 1 WNW PRENTICE. |
| Apr 13, 8:00 AM CDT | SNOW 10 | 1 Wnw Prentice, WI | |
| Apr 13, 8:15 AM CDT | HEAVY SNOW 7 | 3 Sw Bayfield, WI | |
| Apr 13, 8:30 AM CDT | SNOW 4.6 | 2 Nw Stone Lake, WI | |
| Apr 13, 8:38 AM CDT | SNOW 4.5 | 2 Nw Washburn, WI | |
| Apr 13, 8:39 AM CDT | SNOW 2.2 | 4 Ene Cornucopia, WI | |
| Apr 13, 8:53 AM CDT | SNOW 7 | Butternut, WI | BETWEEN 6 AND 8 INCHES OF SNOW DEPTH THIS AM. |
| Apr 13, 8:53 AM CDT | HEAVY SNOW 7 | Butternut, WI | CORRECTS PREVIOUS SNOW REPORT FROM BUTTERNUT. BETWEEN 6 AND 8 INCHES OF SNOW DEPTH THIS AM. |
| Apr 13, 8:57 AM CDT | HEAVY SNOW 14 | Gile, WI | UPDATES THE PREVIOUS REPORT. STILL HEAVY SNOW FALL AT TIME OF OBSERVATION, WITH SOME BLOWING SNOW REPORTED. |
| Apr 13, 9:48 AM CDT | HEAVY SNOW 8 | Glidden, WI | |
| Apr 13, 10:50 AM CDT | SNOW 4.5 | 1 E Loretta, WI | |
| Apr 13, 11:34 AM CDT | SNOW 3.5 | 3 W Stanberry, WI | |
| Apr 13, 11:54 AM CDT | SNOW 2 | 9 Ssw Namekagon, WI | |
| Apr 13, 1:00 PM CDT | SNOW 3.8 | 1 Sw Hayward, WI |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 8.1 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
- 2248 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Duluth, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 11, 3:04 PM CDT | Winter Weather Advisory | DLH | Burnett, Douglas | 32 hr |
Nearby
Winter Storm Warnings in Wisconsin, 2020Every winter storm warning in 2020
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.