Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 56, NWS Green Bay, WI

July 28, 2021Langlade County, Lincoln County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Jul 28, 2021, 7:52 PM CDT for Langlade County, Lincoln County, Wisconsin. It was in force for 53 min. 10 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: Jul 28, 2021, 7:52 PM CDT (00:52 UTC)
Expired: Jul 28, 2021, 8:45 PM CDT
In force: 53 min
Issued by: NWS Green Bay, WI
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Langlade County, WI, Lincoln County, WI

The radar

The Green Bay radar (KGRB), 122 km from the middle of the area, began a volume at 00:52 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
Jul 28, 8:07 PM CDT	TSTM WND DMG	Tomahawk, WI	MULTIPLE TREES AND POWERLINES DOWN IN CITY
Jul 28, 8:20 PM CDT	TSTM WND DMG	2 Ne Otis, WI	MULTIPLE TREES DOWN AND UPROOTED ALONG COUNTY K. PARTIALLY DESTROYED BARN AS WELL. REPORT VIA SOCIAL MEDIA. TIME ESTIMATED BY RADAR.
Jul 28, 8:23 PM CDT	TSTM WND DMG	Irma, WI	MULTIPLE TREES AND POWERLINES DOWN IN CITY...VIA SOCIAL MEDIA.
Jul 28, 8:35 PM CDT	TSTM WND GST 48	Merrill, WI
Jul 28, 8:39 PM CDT	TSTM WND DMG	Merrill, WI	NUMEROUS TREES AND POWER LINES DOWN IN THE CITY.
Jul 28, 8:40 PM CDT	TSTM WND GST 70	Merrill, WI	THERE ARE REPORTS OF NUMEROUS TREES AND POWER LINES DOWN IN THE CITY.
Jul 28, 8:40 PM CDT	TORNADO	4 Se Merrill, WI	NWS DAMAGE SURVEY HAS CONFIRMED A TORNADO STARTING NEAR PINE RIVER WITH WIDESPREAD TREE DAMAGE NEAR THE INTERSECTION OF COUNTY W AND COUNTY P. THE PATH EXTENDS SOUTH INTO MARATHON COUNTY, ENDING JUST EAST OF COUNTY W NEAR HAZELWOOD LANE. PATH LENGTH IS ESTIMAT
Jul 28, 8:40 PM CDT	TORNADO	4 Se Merrill, WI	NWS DAMAGE SURVEY HAS CONFIRMED A TORNADO STARTING NEAR PINE RIVER WITH WIDESPREAD TREE DAMAGE NEAR THE INTERSECTION OF COUNTY W AND COUNTY P. THE PATH EXTENDS SOUTH INTO MARATHON COUNTY, ENDING JUST WEST OF COUNTY W NEAR HAZELWOOD LANE. PATH LENGTH IS ESTIMAT
Jul 28, 8:40 PM CDT	TORNADO	5 Se Merrill, WI	NWS DAMAGE SURVEY HAS CONFIRMED A TORNADO STARTING NEAR PINE RIVER WITH WIDESPREAD TREE DAMAGE NEAR THE INTERSECTION OF COUNTY ROAD P AND VAN ROAD. THE PATH EXTENDS SOUTH INTO MARATHON COUNTY, ENDING NEAR THE INTERSECTION OF SHADY LANE ROAD AND HAZELWOOD LANE.
Jul 28, 8:52 PM CDT	TSTM WND DMG	3 E Pine River, WI	MULTIPLE MATURE PINE TREES DOWN, ROOF BLOWN OFF BARN, CORN FIELDS SHREDDED. REPORT VIA SOCIAL MEDIA.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 28, 7:17 PM CDT	Severe Thunderstorm Watch PDS	SPC	7 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.9 hours before the alert went out and 124 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: 593 J/kg
Mixed-layer CIN: -264 J/kg
Mixed-layer LCL: 1088 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 154 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

822 
WUUS53 KGRB 290052
SVRGRB
WIC067-069-290145-
/O.NEW.KGRB.SV.W.0056.210729T0052Z-210729T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Green Bay WI
752 PM CDT Wed Jul 28 2021

The National Weather Service in Green Bay has issued a

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

* Until 845 PM CDT.

* At 752 PM CDT, severe thunderstorms were located along a line
  extending from Newbold to 8 miles west of Woodboro to near Spirit,
  moving southeast at 60 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.

* Severe thunderstorms will be near...
  Tomahawk around 800 PM CDT.
  Harrison around 805 PM CDT.
  New Wood Wildlife Area around 810 PM CDT.

Other locations in the path of these severe thunderstorms include
Parrish, Birch Trails Girl Scout Camp, Merrill, Council Grounds State
Park, Pearson, Ma Ka Ja Wan Scout Reservation, Veterans Memorial
County Park, Dutch Corners and Antigo.

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 4555 9004 4556 8943 4547 8942 4546 8893
      4538 8892 4538 8868 4521 8868 4520 8864
      4512 8864 4512 8898 4503 8899 4503 8922
      4512 8922 4512 9004
TIME...MOT...LOC 0052Z 316DEG 50KT 4569 8948 4562 8971 4553 9017 

HAIL...1.00IN
WIND...60MPH
 
$$

Kurimski

5 follow-up statements

979 
WWUS53 KGRB 290100
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
800 PM CDT Wed Jul 28 2021

WIC067-069-290145-
/O.CON.KGRB.SV.W.0056.000000T0000Z-210729T0145Z/
Lincoln WI-Langlade WI-
800 PM CDT Wed Jul 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR LINCOLN AND LANGLADE COUNTIES...

At 759 PM CDT, severe thunderstorms were located along a line
extending from Rhinelander to near Woodboro to Spirit, moving
southeast at 60 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.

These severe storms will be near...
  Harrison around 810 PM CDT.

Other locations in the path of these severe thunderstorms include
Parrish, New Wood Wildlife Area, Birch Trails Girl Scout Camp,
Merrill, Pearson, Council Grounds State Park, Veterans Memorial
County Park, Ma Ka Ja Wan Scout Reservation, Dutch Corners, Antigo,
White Lake and Gardner Dam Scout Camp.

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 4555 9004 4556 8943 4547 8942 4546 8893
      4538 8892 4538 8868 4521 8868 4520 8864
      4512 8864 4512 8898 4503 8899 4503 8922
      4512 8922 4512 9004
TIME...MOT...LOC 0059Z 316DEG 50KT 4563 8939 4556 8962 4547 9008 

HAIL...1.00IN
WIND...60MPH
 
$$

Kurimski

583 
WWUS53 KGRB 290109
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
809 PM CDT Wed Jul 28 2021

WIC067-069-290145-
/O.CON.KGRB.SV.W.0056.000000T0000Z-210729T0145Z/
Lincoln WI-Langlade WI-
809 PM CDT Wed Jul 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR LINCOLN AND LANGLADE COUNTIES...

At 809 PM CDT, severe thunderstorms were located along a line
extending from 10 miles southeast of Rhinelander to Harrison to near
New Wood Wildlife Area, moving southeast at 60 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.

These severe storms will be near...
  Parrish around 815 PM CDT.

Other locations in the path of these severe thunderstorms include
Merrill, Council Grounds State Park, Veterans Memorial County Park,
Pearson, Ma Ka Ja Wan Scout Reservation, Dutch Corners, Antigo, White
Lake and Gardner Dam Scout Camp.

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 4555 9004 4556 8943 4547 8942 4546 8893
      4538 8892 4538 8868 4521 8868 4520 8864
      4512 8864 4512 8898 4503 8899 4503 8922
      4512 8922 4512 9004
TIME...MOT...LOC 0109Z 316DEG 50KT 4554 8927 4547 8950 4538 8996 

HAIL...1.00IN
WIND...60MPH
 
$$

Kurimski

088 
WWUS53 KGRB 290119
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
819 PM CDT Wed Jul 28 2021

WIC067-069-290145-
/O.CON.KGRB.SV.W.0056.000000T0000Z-210729T0145Z/
Lincoln WI-Langlade WI-
819 PM CDT Wed Jul 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR LINCOLN AND LANGLADE COUNTIES...

At 819 PM CDT, severe thunderstorms were located along a line
extending from 9 miles north of Veterans Memorial County Park to
Parrish to near New Wood Wildlife Area, moving southeast at 60 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.

These severe storms will be near...
  Veterans Memorial County Park around 825 PM CDT.

Other locations in the path of these severe thunderstorms include
Pearson, Ma Ka Ja Wan Scout Reservation, Dutch Corners, Antigo, White
Lake and Gardner Dam Scout Camp.

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 4555 9004 4556 8943 4547 8942 4546 8893
      4538 8892 4538 8868 4521 8868 4520 8864
      4512 8864 4512 8898 4503 8899 4503 8922
      4512 8922 4512 9004
TIME...MOT...LOC 0119Z 316DEG 50KT 4546 8916 4539 8939 4530 8985 

HAIL...1.00IN
WIND...60MPH
 
$$

Kurimski

785 
WWUS53 KGRB 290125
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
825 PM CDT Wed Jul 28 2021

WIC067-069-290145-
/O.CON.KGRB.SV.W.0056.000000T0000Z-210729T0145Z/
Lincoln WI-Langlade WI-
825 PM CDT Wed Jul 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR LINCOLN AND LANGLADE COUNTIES...

At 824 PM CDT, severe thunderstorms were located along a line
extending from near Veterans Memorial County Park to near Dutch
Corners to New Wood Wildlife Area, moving southeast at 40 mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...Trained weather spotters. At 807 pm wind damage was 
         reported in Tomahawk.

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

These severe storms will be near...
  Veterans Memorial County Park and Pearson around 830 PM CDT.

Other locations in the path of these severe thunderstorms include
Merrill and Council Grounds State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a DANGEROUS SITUATION. These storms are producing widespread 
wind damage across Lincoln County. SEEK SHELTER NOW inside a sturdy 
structure and 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 4555 9004 4556 8943 4547 8942 4546 8893
      4538 8892 4538 8868 4521 8868 4520 8864
      4512 8864 4512 8898 4503 8899 4503 8922
      4512 8922 4512 9004
TIME...MOT...LOC 0124Z 330DEG 36KT 4536 8916 4527 8960 4530 8997 

HAIL...1.00IN
WIND...70MPH
 
$$

Kurimski

476 
WWUS53 KGRB 290138
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
838 PM CDT Wed Jul 28 2021

WIC067-069-290147-
/O.EXP.KGRB.SV.W.0056.000000T0000Z-210729T0145Z/
Lincoln WI-Langlade WI-
838 PM CDT Wed Jul 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR LINCOLN AND LANGLADE COUNTIES
WILL EXPIRE AT 845 PM CDT...

A new Severe Thunderstorm Warning has been issued for southern 
Lincoln and western Langlade counties until 930 pm.

LAT...LON 4555 9004 4556 8943 4547 8942 4546 8893
      4538 8892 4538 8868 4521 8868 4520 8864
      4512 8864 4512 8898 4503 8899 4503 8922
      4512 8922 4512 9004
TIME...MOT...LOC 0137Z 316DEG 50KT 4524 8900 4515 8944 4518 8981 

$$

Kurimski

The office that day

Everything else NWS Green Bay, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 28, 7:04 PM CDT	Special Weather Statement	GRB	Lincoln, Oneida, Vilas	41 min
Jul 28, 7:36 PM CDT	Severe Thunderstorm Warning	GRB	Langlade, Lincoln, Marathon	39 min
Jul 28, 7:36 PM CDT	Severe Thunderstorm Warning	GRB	Oneida	39 min
Jul 28, 8:20 PM CDT	Special Weather Statement	GRB	Shawano	40 min
Jul 28, 8:37 PM CDT	Severe Thunderstorm Warning	GRB	Langlade, Lincoln, Marathon, Shawano	53 min
Jul 28, 8:58 PM CDT	Tornado Warning	GRB	Marathon	32 min
Jul 28, 9:05 PM CDT	Areal Flood Advisory	GRB	Langlade, Lincoln, Marathon, Shawano	3 hr
Jul 28, 9:21 PM CDT	Tornado Warning	GRB	Marathon, Portage	24 min
Jul 28, 9:22 PM CDT	Severe Thunderstorm Warning	GRB	Marathon, Portage, Shawano, Waupaca	53 min
Jul 28, 9:54 PM CDT	Tornado Warning	GRB	Portage, Waupaca	36 min
Jul 28, 10:10 PM CDT	Severe Thunderstorm Warning	GRB	Outagamie, Portage, Waupaca, Waushara, Winnebago	65 min
Jul 28, 10:18 PM CDT	Severe Thunderstorm Warning	GRB	Wood	43 min
Jul 28, 10:35 PM CDT	Areal Flood Advisory	GRB	Marathon, Outagamie, Portage, Shawano, Waupaca, Waushara and 1 more	3 hr
Jul 28, 11:12 PM CDT	Severe Thunderstorm Warning	GRB	Portage, Waupaca, Waushara, Winnebago	45 min
Jul 28, 11:38 PM CDT	Tornado Warning	GRB	Winnebago	16 min
Jul 29, 3:42 AM CDT	Small Craft Advisory	GRB		23 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.