Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 10, NWS Green Bay, WI

May 25, 2021Langlade County, Lincoln County, Oneida County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at May 25, 2021, 5:57 PM CDT for Langlade County, Lincoln County, Oneida County, Wisconsin. It was in force for 63 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, 5:57 PM CDT (22:57 UTC)
Expired: May 25, 2021, 7:00 PM CDT
In force: 63 min
Issued by: NWS Green Bay, WI
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Langlade County, WI, Lincoln County, WI, Oneida County, WI

The radar

The Green Bay radar (KGRB), 156 km from the middle of the area, began a volume at 22:59 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, 11.0 hours before the alert went out and 158 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

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

Open this sounding in Storm Lab

The text

As transmitted.

200 
WUUS53 KGRB 252257
SVRGRB
WIC067-069-085-260000-
/O.NEW.KGRB.SV.W.0010.210525T2257Z-210526T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Green Bay WI
557 PM CDT Tue May 25 2021

The National Weather Service in Green Bay has issued a

* Severe Thunderstorm Warning for...
  Lincoln County in north central Wisconsin...
  Southeastern Oneida County in north central Wisconsin...
  Northwestern Langlade County in north central Wisconsin...

* Until 700 PM CDT.

* At 557 PM CDT, severe thunderstorms were located along a line
  extending from near Harrison to near Gilbert to near Medford,
  moving east at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Severe thunderstorms will be near...
  Harrison around 605 PM CDT.
  Parrish around 615 PM CDT.

Other locations in the path of these severe thunderstorms include
Council Grounds State Park, Merrill, Veterans Memorial County Park
and Dutch Corners.

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 4548 9004 4555 8997 4556 8905 4536 8905
      4512 8939 4512 9004
TIME...MOT...LOC 2257Z 266DEG 36KT 4553 8945 4539 8964 4514 9023 

HAIL...<.75IN
WIND...60MPH
 
$$

Eckberg

2 follow-up statements

513 
WWUS53 KGRB 252312
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
612 PM CDT Tue May 25 2021

WIC067-069-085-260000-
/O.CON.KGRB.SV.W.0010.000000T0000Z-210526T0000Z/
Lincoln WI-Oneida WI-Langlade WI-
612 PM CDT Tue May 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR LINCOLN...SOUTHEASTERN ONEIDA AND NORTHWESTERN LANGLADE
COUNTIES...

At 612 PM CDT, severe thunderstorms were located along a line
extending from 11 miles southeast of Rhinelander to Parrish to 11
miles south of New Wood Wildlife Area, moving east at 40 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
  Parrish, Merrill, Council Grounds State Park, Veterans Memorial 
  County Park and Dutch Corners.

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 4548 9004 4555 8997 4556 8905 4536 8905
      4512 8939 4512 9004
TIME...MOT...LOC 2312Z 266DEG 36KT 4554 8924 4540 8943 4515 9002 

HAIL...1.25IN
WIND...60MPH
 
$$

Eckberg

711 
WWUS53 KGRB 252334
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
634 PM CDT Tue May 25 2021

WIC069-252343-
/O.CAN.KGRB.SV.W.0010.000000T0000Z-210526T0000Z/
Lincoln WI-
634 PM CDT Tue May 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR LINCOLN COUNTY IS CANCELLED...

The storms which prompted the warning have weakened. Therefore, the 
warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1000 PM CDT for
north central Wisconsin.

LAT...LON 4556 8905 4536 8905 4512 8939 4512 8941
      4546 8942 4556 8942
TIME...MOT...LOC 2333Z 269DEG 45KT 4555 8893 4543 8920 4516 8971 

$$

WIC067-085-260000-
/O.CON.KGRB.SV.W.0010.000000T0000Z-210526T0000Z/
Oneida WI-Langlade WI-
634 PM CDT Tue May 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR SOUTHEASTERN ONEIDA AND NORTHWESTERN LANGLADE COUNTIES...

At 633 PM CDT, severe thunderstorms were located along a line
extending from near Crandon to 8 miles northwest of Veterans Memorial
County Park to Merrill, moving east at 50 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Parrish, Veterans Memorial County Park, Elcho, Enterprise, Summit
Lake, Ackley Wildlife Area, Kelly Lynn Bog Natural Area, Post Lake,
Ormsby and Pelican Lake.

Another severe thunderstorm warning is in effect for Langlade County 
until 730 PM CDT. 

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 4556 8905 4536 8905 4512 8939 4512 8941
      4546 8942 4556 8942
TIME...MOT...LOC 2333Z 269DEG 45KT 4555 8893 4543 8920 4516 8971 

HAIL...1.25IN
WIND...60MPH
 
$$

Eckberg

The 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, 6:18 PM CDT	Severe Thunderstorm Warning	GRB	Marathon, Portage, Wood	39 min
May 25, 6:29 PM CDT	Severe Thunderstorm Warning	GRB	Forest, Langlade, Oconto	36 min
May 25, 6:54 PM CDT	Special Weather Statement	GRB	Menominee, Oconto, Portage, Shawano, Waupaca	66 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2021 Every 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.