Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 23, NWS Green Bay, WI
NWS Green Bay, WI issued this severe thunderstorm warning at Jun 10, 2021, 6:24 PM CDT for Lincoln County, Marathon County, Wisconsin. It was in force for 66 min. 6 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, 6:24 PM CDT (23:24 UTC)
- Expired
- Jun 10, 2021, 7:30 PM CDT
- In force
- 66 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Lincoln County, WI, Marathon County, WI
The radar
The Green Bay radar (KGRB), 157 km from the middle of the area, began a volume at 23:24 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, 6:30 PM CDT | TSTM WND DMG | 1 N Irma, WI | SMALL BRANCHES DOWN. REPORT VIA SOCIAL MEDIA. |
| Jun 10, 6:30 PM CDT | HAIL 0.88 | 1 N Irma, WI | REPORT VIA SOCIAL MEDIA. |
| Jun 10, 6:40 PM CDT | TSTM WND DMG | 3 Sw New Wood Wildlife, WI | TREES DOWN ON COUNTY M AND ON HWY 64 IN WEST PART OF LINCOLN COUNTY. TIME ESTIMATED BY RADAR. |
| Jun 10, 6:55 PM CDT | TSTM WND GST 44 | Merrill, WI | |
| Jun 10, 7:08 PM CDT | TSTM WND DMG | 4 Nw Hamburg, WI | TREES DOWN AT COUNTY HWY FF AND S. TIME ESTIMATED BY RADAR. |
| Jun 10, 7:24 PM CDT | HAIL 0.88 | Nutterville, WI | VIA SOCIAL MEDIA |
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, 11.4 hours before the alert went out and 159 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.
696
WUUS53 KGRB 102324
SVRGRB
WIC069-073-110030-
/O.NEW.KGRB.SV.W.0023.210610T2324Z-210611T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Green Bay WI
624 PM CDT Thu Jun 10 2021
The National Weather Service in Green Bay has issued a
* Severe Thunderstorm Warning for...
Lincoln County in north central Wisconsin...
Northern Marathon County in central Wisconsin...
* Until 730 PM CDT.
* At 624 PM CDT, severe thunderstorms were located along a line
extending from near Parrish to Birch Trails Girl Scout Camp to New
Wood Wildlife Area, moving south at 15 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Law enforcement.
IMPACT...Expect damage to roofs, siding, and trees.
* Severe thunderstorms will be near...
Birch Trails Girl Scout Camp and New Wood Wildlife Area around 630
PM CDT.
Other locations in the path of these severe thunderstorms include
Merrill, Council Grounds State Park, Dutch Corners and Wausau.
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 4503 9023 4504 9020 4512 9020 4512 9004
4533 9005 4536 9003 4538 8968 4543 8943
4512 8943 4512 8934 4501 8933 4494 9023
TIME...MOT...LOC 2324Z 010DEG 13KT 4536 8947 4531 8970 4530 8995
HAIL...0.75IN
WIND...60MPH
$$
Kurimski3 follow-up statements
860
WWUS53 KGRB 102348
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
648 PM CDT Thu Jun 10 2021
WIC069-073-110030-
/O.CON.KGRB.SV.W.0023.000000T0000Z-210611T0030Z/
Lincoln WI-Marathon WI-
648 PM CDT Thu Jun 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR LINCOLN AND NORTHERN MARATHON COUNTIES...
At 648 PM CDT, severe thunderstorms were located along a line
extending from near Dutch Corners to Council Grounds State Park to 9
miles south of New Wood Wildlife Area, moving south at 15 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Wausau.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4503 9023 4504 9020 4512 9020 4512 9004
4533 9005 4536 9003 4538 8968 4543 8943
4512 8943 4512 8934 4501 8933 4494 9023
TIME...MOT...LOC 2348Z 359DEG 14KT 4523 8949 4518 8972 4517 8997
HAIL...0.75IN
WIND...60MPH
$$
Kurimski406
WWUS53 KGRB 110008
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
708 PM CDT Thu Jun 10 2021
WIC069-073-110030-
/O.CON.KGRB.SV.W.0023.000000T0000Z-210611T0030Z/
Lincoln WI-Marathon WI-
708 PM CDT Thu Jun 10 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR SOUTHERN LINCOLN AND NORTHERN MARATHON COUNTIES...
At 708 PM CDT, severe thunderstorms were located along a line
extending from near Dutch Corners to near Council Grounds State Park
to 14 miles south of New Wood Wildlife Area, moving south at 15 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Wausau, Merrill, Council Grounds State Park, Dutch Corners, Athens,
Hamburg, Glandon, Little Chicago, Poniatowski and Nutterville.
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 these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4503 9023 4504 9020 4512 9020 4512 9004
4528 9004 4528 8965 4534 8943 4512 8943
4512 8934 4501 8933 4494 9023
TIME...MOT...LOC 0008Z 010DEG 13KT 4516 8951 4511 8974 4510 8999
HAIL...0.75IN
WIND...60MPH
$$
Kurimski961
WWUS53 KGRB 110026
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
726 PM CDT Thu Jun 10 2021
WIC069-073-110036-
/O.EXP.KGRB.SV.W.0023.000000T0000Z-210611T0030Z/
Lincoln WI-Marathon WI-
726 PM CDT Thu Jun 10 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN LINCOLN AND NORTHERN
MARATHON COUNTIES WILL EXPIRE AT 730 PM CDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However small
hail, gusty winds and heavy rain are still possible with these
thunderstorms.
LAT...LON 4503 9023 4504 9020 4512 9020 4512 9004
4528 9004 4528 8965 4534 8943 4512 8943
4512 8934 4501 8933 4494 9023
TIME...MOT...LOC 0026Z 010DEG 13KT 4510 8952 4505 8975 4504 9000
$$
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, 4:07 PM CDT | Severe Thunderstorm Warning | GRB | Oneida, Vilas | 53 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 |
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.