Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 12, NWS Green Bay, WI
NWS Green Bay, WI issued this severe thunderstorm warning at May 25, 2021, 6:29 PM CDT for Forest County, Langlade County, Oconto County, Wisconsin. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 25, 2021, 6:29 PM CDT (23:29 UTC)
- Expired
- May 25, 2021, 7:05 PM CDT
- In force
- 36 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Forest County, WI, Langlade County, WI, Oconto County, WI
The radar
The Green Bay radar (KGRB), 127 km from the middle of the area, began a volume at 23:31 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 25, 2:53 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.5 hours before the alert went out and 129 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
- 96 J/kg
- Mixed-layer CIN
- -140 J/kg
- Mixed-layer LCL
- 1118 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 125 m²/s²
- 0-3 km storm-relative helicity
- 155 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
777
WUUS53 KGRB 252329
SVRGRB
WIC041-067-083-260030-
/O.NEW.KGRB.SV.W.0012.210525T2329Z-210526T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Green Bay WI
629 PM CDT Tue May 25 2021
The National Weather Service in Green Bay has issued a
* Severe Thunderstorm Warning for...
Southern Forest County in northeastern Wisconsin...
Northern Oconto County in northeastern Wisconsin...
Langlade County in north central Wisconsin...
* Until 730 PM CDT.
* At 628 PM CDT, a severe thunderstorm was located near Parrish, or
14 miles southeast of Rhinelander, moving east at 50 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.
* This severe thunderstorm will be near...
Ma Ka Ja Wan Scout Reservation and Pearson around 645 PM CDT.
Other locations in the path of this severe thunderstorm include
Woodlawn, Carter and McCaslin Mountain Natural Area.
This warning extends the warning already in effect for northwestern
Langlade County.
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.
&&
LAT...LON 4547 8940 4546 8905 4559 8905 4562 8843
4526 8843 4518 8943
TIME...MOT...LOC 2327Z 266DEG 42KT 4544 8931
HAIL...1.00IN
WIND...60MPH
$$
Eckberg3 follow-up statements
805
WWUS53 KGRB 252345 RRA
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
645 PM CDT Tue May 25 2021
WIC041-067-083-260030-
/O.CON.KGRB.SV.W.0012.000000T0000Z-210526T0030Z/
Forest WI-Oconto WI-Langlade WI-
645 PM CDT Tue May 25 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR SOUTHERN FOREST...NORTHERN OCONTO AND LANGLADE COUNTIES...
At 644 PM CDT, a severe thunderstorm was located near Pearson, or 9
miles southwest of Crandon, moving east at 50 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Woodlawn, Carter and McCaslin Mountain Natural Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.
&&
LAT...LON 4559 8905 4562 8843 4526 8843 4518 8943
4547 8940 4546 8905
TIME...MOT...LOC 2344Z 266DEG 42KT 4545 8902
HAIL...0.88IN
WIND...60MPH
$$
Eckberg635
WWUS53 KGRB 252353
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
653 PM CDT Tue May 25 2021
WIC041-067-083-260030-
/O.CON.KGRB.SV.W.0012.000000T0000Z-210526T0030Z/
Forest WI-Oconto WI-Langlade WI-
653 PM CDT Tue May 25 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR SOUTHERN FOREST...NORTHERN OCONTO AND CENTRAL LANGLADE
COUNTIES...
At 652 PM CDT, a severe thunderstorm was located over Woodlawn, or 7
miles south of Crandon, moving east at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Crandon, Carter, McCaslin Mountain Natural Area, Pearson, North Otter
Creek Natural Area, Woodlawn, Veterans Memorial County Park, Ma Ka Ja
Wan Scout Reservation, Laona and Wabeno.
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.
&&
LAT...LON 4559 8905 4562 8843 4526 8843 4519 8925
4546 8905
TIME...MOT...LOC 2352Z 265DEG 42KT 4546 8888
HAIL...<.75IN
WIND...60MPH
$$
Eckberg355
WWUS53 KGRB 260005
SVSGRB
Severe Weather Statement
National Weather Service Green Bay WI
705 PM CDT Tue May 25 2021
WIC041-067-083-260015-
/O.CAN.KGRB.SV.W.0012.000000T0000Z-210526T0030Z/
Forest WI-Oconto WI-Langlade WI-
705 PM CDT Tue May 25 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN FOREST...NORTHERN
OCONTO AND CENTRAL LANGLADE COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However small hail and
gusty winds are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
north central and northeastern Wisconsin.
LAT...LON 4559 8905 4562 8843 4526 8843 4519 8925
4546 8905
TIME...MOT...LOC 0004Z 266DEG 42KT 4547 8866
$$
EckbergThe office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 7:00 PM CDT | Special Weather Statement | GRB | Lincoln | 45 min |
| May 24, 7:24 PM CDT | Special Weather Statement | GRB | Lincoln | 21 min |
| May 24, 8:50 PM CDT | Small Craft Advisory | GRB | 31 hr | |
| May 25, 9:47 AM CDT | Special Weather Statement | GRB | Forest, Langlade, Oneida | 58 min |
| May 25, 4:01 PM CDT | Special Weather Statement | GRB | Lincoln, Oneida, Vilas | 89 min |
| May 25, 4:22 PM CDT | Special Weather Statement | GRB | Winnebago | 23 min |
| May 25, 4:53 PM CDT | Severe Thunderstorm Warning | GRB | Lincoln | 67 min |
| May 25, 5:34 PM CDT | Severe Thunderstorm Warning | GRB | Marathon, Portage, Wood | 56 min |
| May 25, 5:57 PM CDT | Severe Thunderstorm Warning | GRB | Langlade, Lincoln, Oneida | 63 min |
| May 25, 6:18 PM CDT | Severe Thunderstorm Warning | GRB | Marathon, Portage, Wood | 39 min |
| May 25, 6:54 PM CDT | Special Weather Statement | GRB | Menominee, Oconto, Portage, Shawano, Waupaca | 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.