Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 20, NWS Green Bay, WI
NWS Green Bay, WI issued this severe thunderstorm warning at Jun 10, 2021, 4:07 PM CDT for Oneida County, Vilas County, Wisconsin. It was in force for 53 min. 5 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 10, 2021, 4:07 PM CDT (21:07 UTC)
- Expired
- Jun 10, 2021, 5:00 PM CDT
- In force
- 53 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 60.0 mph
Counties Oneida County, WI, Vilas County, WI
The radar
The Marquette radar (KMQT), 151 km from the middle of the area, began a volume at 21:09 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 |
|---|---|---|---|
| Jun 10, 4:15 PM CDT | HAIL 0.5 | Sayner, WI | SOME DEBRIS FROM WIND, PONDING RAIN IN THE BACKYARD |
| Jun 10, 4:15 PM CDT | HAIL 0.75 | Sayner, WI | VIDEO ON SOCIAL MEDIA |
| Jun 10, 4:18 PM CDT | TSTM WND DMG | St Germain, WI | SEVERAL TREES/POWER LINES DOWN. TIME ESTIMATED BY RADAR. |
| Jun 10, 4:29 PM CDT | HAIL 0.5 | St Germain, WI | MOSTLY LESS THAN HALF AN INCH HAIL. HAIL HAD BEEN FALLING FOR AROUND 8 MINUTES |
| Jun 10, 4:49 PM CDT | TSTM WND DMG | 3 Ene Mc Naughton, WI | TREES DOWN. TIME ESTIMATED BY RADAR. |
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, 9.1 hours before the alert went out and 182 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
- 83 J/kg
- Mixed-layer CIN
- -163 J/kg
- Mixed-layer LCL
- 948 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- 14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
636
WUUS53 KGRB 102107
SVRGRB
WIC085-125-102200-
/O.NEW.KGRB.SV.W.0020.210610T2107Z-210610T2200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Green Bay WI
407 PM CDT Thu Jun 10 2021
The National Weather Service in Green Bay has issued a
* Severe Thunderstorm Warning for...
Southeastern Vilas County in north central Wisconsin...
Northeastern Oneida County in north central Wisconsin...
* Until 500 PM CDT.
* At 406 PM CDT, severe thunderstorms were located along a line
extending from 6 miles north of Rainbow Flowage to near Eagle
River, moving southeast at 10 mph.
HAZARD...Ping pong ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect
wind damage to roofs, siding, and trees.
* Severe thunderstorms will be near...
Eagle River around 410 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4598 8913 4595 8905 4563 8905 4572 8968
4605 8964
TIME...MOT...LOC 2106Z 316DEG 11KT 4595 8949 4589 8918
HAIL...1.50IN
WIND...60MPH
$$
Kurimski4 follow-up statements
021
WWUS53 KGRB 102124
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
424 PM CDT Thu Jun 10 2021
WIC085-125-102200-
/O.CON.KGRB.SV.W.0020.000000T0000Z-210610T2200Z/
Vilas WI-Oneida WI-
424 PM CDT Thu Jun 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR SOUTHEASTERN VILAS AND NORTHEASTERN ONEIDA COUNTIES...
At 424 PM CDT, a severe thunderstorm was located near Rainbow
Flowage, or 9 miles southwest of Eagle River, moving southeast at 20
mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Crystal Lake Scout Reservation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4598 8913 4595 8905 4563 8905 4572 8968
4594 8965 4602 8943
TIME...MOT...LOC 2124Z 327DEG 17KT 4587 8943
HAIL...1.00IN
WIND...60MPH
$$
Kurimski908
WWUS53 KGRB 102141
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
441 PM CDT Thu Jun 10 2021
WIC125-102150-
/O.CAN.KGRB.SV.W.0020.000000T0000Z-210610T2200Z/
Vilas WI-
441 PM CDT Thu Jun 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN VILAS COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4590 8953 4590 8930 4586 8930 4586 8921
4589 8905 4563 8905 4572 8968
TIME...MOT...LOC 2140Z 316DEG 11KT 4583 8938
$$
WIC085-102200-
/O.CON.KGRB.SV.W.0020.000000T0000Z-210610T2200Z/
Oneida WI-
441 PM CDT Thu Jun 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR NORTHEASTERN ONEIDA COUNTY...
At 440 PM CDT, a severe thunderstorm was located 7 miles north of
Crystal Lake Scout Reservation, or 8 miles southwest of Eagle River,
moving southeast at 15 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Newbold, Rainbow Flowage, Crystal Lake Scout Reservation, Three
Lakes, Sugar Camp, Lake Tomahawk, Roosevelt, Mc Naughton, Gagen and
Clearwater Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4590 8953 4590 8930 4586 8930 4586 8921
4589 8905 4563 8905 4572 8968
TIME...MOT...LOC 2140Z 316DEG 11KT 4583 8938
HAIL...1.00IN
WIND...60MPH
$$
Kurimski902
WWUS53 KGRB 102152
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
452 PM CDT Thu Jun 10 2021
WIC085-102200-
/O.CON.KGRB.SV.W.0020.000000T0000Z-210610T2200Z/
Oneida WI-
452 PM CDT Thu Jun 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR NORTHEASTERN ONEIDA COUNTY...
At 452 PM CDT, a severe thunderstorm was located over Crystal Lake
Scout Reservation, or 8 miles north of Rhinelander, moving northeast
at 25 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.
Locations impacted include...
Newbold, Rainbow Flowage, Crystal Lake Scout Reservation, Three
Lakes, Sugar Camp, Lake Tomahawk, Roosevelt, Mc Naughton, Gagen and
Clearwater Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4590 8953 4590 8930 4586 8930 4586 8921
4589 8905 4563 8905 4572 8968
TIME...MOT...LOC 2152Z 234DEG 21KT 4576 8944
HAIL...1.00IN
WIND...60MPH
$$
Kurimski324
WWUS53 KGRB 102200
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
500 PM CDT Thu Jun 10 2021
WIC085-102210-
/O.EXP.KGRB.SV.W.0020.000000T0000Z-210610T2200Z/
Oneida WI-
500 PM CDT Thu Jun 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN ONEIDA COUNTY HAS
EXPIRED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been allowed to expire. However small
hail, gusty winds and heavy rain are still possible with this
thunderstorm.
LAT...LON 4590 8953 4590 8930 4586 8930 4586 8921
4589 8905 4563 8905 4572 8968
TIME...MOT...LOC 2200Z 316DEG 11KT 4574 8942
$$
KurimskiThe office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 10:09 AM CDT | Marine Dense Fog Advisory | GRB | 18 hr | |
| Jun 10, 12:37 PM CDT | Special Weather Statement | GRB | Forest | 53 min |
| Jun 10, 1:21 PM CDT | Special Weather Statement | GRB | Florence, Forest | 54 min |
| Jun 10, 2:17 PM CDT | Special Weather Statement | GRB | Florence, Forest, Oneida | 43 min |
| Jun 10, 3:20 PM CDT | Severe Thunderstorm Warning | GRB | Vilas | 55 min |
| Jun 10, 4:17 PM CDT | Special Weather Statement | GRB | Langlade | 58 min |
| Jun 10, 4:31 PM CDT | Severe Thunderstorm Warning | GRB | Langlade, Lincoln | 59 min |
| Jun 10, 4:33 PM CDT | Areal Flood Advisory | GRB | Oneida, Vilas | 4 hr |
| Jun 10, 6:00 PM CDT | Severe Thunderstorm Warning | GRB | Lincoln | 60 min |
| Jun 10, 6:07 PM CDT | Areal Flood Advisory | GRB | Lincoln | 3 hr |
| Jun 10, 6:24 PM CDT | Severe Thunderstorm Warning | GRB | Lincoln, Marathon | 66 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.