Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 21, NWS Green Bay, WI

July 1, 2018Menominee County, Oconto County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Jul 1, 2018, 12:23 PM CDT for Menominee County, Oconto County, Wisconsin. It was in force for 82 min. 7 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 1, 2018, 12:23 PM CDT (17:23 UTC)
Expired: Jul 1, 2018, 1:45 PM CDT
In force: 82 min
Issued by: NWS Green Bay, WI
Area: Storm-based polygon
Tornado: Possible
Hail: 1.0 in
Wind: 60.0 mph

Counties Menominee County, WI, Oconto County, WI

The radar

The Green Bay radar (KGRB), 70 km from the middle of the area, began a volume at 17:22 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 1, 12:25 PM CDT	TSTM WND DMG	2 Ne Mountain, WI	MANY TREES SNAPPED AND UPROOTED NEAR CROOKED LAKE. VIA SOCIAL MEDIA.
Jul 1, 12:25 PM CDT	TSTM WND DMG	6 Ne Neopit, WI	DAMAGE IN THE AREA OF DELLS CREEK RD. TIME ESTIMATED BY RADAR.
Jul 1, 12:45 PM CDT	HAIL 1	Mountain, WI
Jul 1, 12:46 PM CDT	TSTM WND DMG	1 W Mountain, WI	ON COUNTY ROAD W...OVER 50 TREES SNAPPED AND UPROOTED. POWER OFF IN CITY.
Jul 1, 12:47 PM CDT	TSTM WND DMG	Mountain, WI	REPORTS OF MULTIPLE TREES DOWN IN MOUNTAIN.
Jul 1, 12:48 PM CDT	TSTM WND DMG	2 N Breed, WI	REPORT OF MULTIPLE TREES SNAPPED.
Jul 1, 12:50 PM CDT	HAIL 1	Se Mountain, WI

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 1, 12:04 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 5.4 hours before the alert went out and 72 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: 10 J/kg
Mixed-layer CIN: -259 J/kg
Mixed-layer LCL: 1272 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 86 m²/s²
0-3 km storm-relative helicity: 152 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

032 
WUUS53 KGRB 011723
SVRGRB
WIC078-083-011845-
/O.NEW.KGRB.SV.W.0021.180701T1723Z-180701T1845Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Green Bay WI
1223 PM CDT SUN JUL 1 2018

The National Weather Service in Green Bay has issued a

* Severe Thunderstorm Warning for...
  Menominee County in northeastern Wisconsin...
  Northern Oconto County in northeastern Wisconsin...

* Until 145 PM CDT.

* At 1223 PM CDT, a severe thunderstorm was located 8 miles north of
  Legend Lake, or 16 miles north of Shawano, moving northeast at 30
  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...
  Mountain, Legend Lake, Keshena, Neopit, Breed, Suring, Intersection
  Of Hwy 55 And County M, White Potato Lake, Hayes and Crooked Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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 this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

A Tornado Watch remains in effect until 700 PM CDT for north central
and northeastern Wisconsin.

LAT...LON 4489 8873 4494 8874 4494 8885 4496 8889
      4512 8865 4512 8864 4513 8864 4535 8831
      4520 8831 4520 8819 4511 8819 4511 8816
      4486 8860 4486 8867
TIME...MOT...LOC 1723Z 224DEG 25KT 4501 8856 

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

Kurimski

5 follow-up statements

695 
WWUS53 KGRB 011738
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
1238 PM CDT SUN JUL 1 2018

WIC078-083-011845-
/O.CON.KGRB.SV.W.0021.000000T0000Z-180701T1845Z/
Menominee WI-Oconto WI-
1238 PM CDT SUN JUL 1 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM CDT
FOR MENOMINEE AND NORTHERN OCONTO COUNTIES...

At 1237 PM CDT, a severe thunderstorm was located near Mountain, or
23 miles north of Shawano, moving northeast at 30 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...
Mountain, Legend Lake, Keshena, Neopit, Breed, Suring, Intersection
Of Hwy 55 And County M, White Potato Lake, Hayes and Crooked Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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.

&&

A Tornado Watch remains in effect until 700 PM CDT for north central
and northeastern Wisconsin.

LAT...LON 4489 8873 4494 8874 4494 8885 4496 8889
      4512 8865 4512 8864 4513 8864 4535 8831
      4520 8831 4520 8819 4511 8819 4511 8816
      4486 8860 4486 8867
TIME...MOT...LOC 1737Z 237DEG 24KT 4510 8843 

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

KLB

000 
WWUS53 KGRB 011742 CCA
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
1242 PM CDT SUN JUL 1 2018

WIC078-083-011845-
/O.COR.KGRB.SV.W.0021.000000T0000Z-180701T1845Z/
Menominee WI-Oconto WI-
1242 PM CDT SUN JUL 1 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM CDT
FOR MENOMINEE AND NORTHERN OCONTO COUNTIES...

At 1241 PM CDT, a severe thunderstorm was located near Mountain, or
24 miles north of Shawano, moving northeast at 25 mph.

HAZARD...Two inch 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.

Locations impacted include...
Mountain, Legend Lake, Keshena, Neopit, Breed, Suring, Intersection
Of Hwy 55 And County M, White Potato Lake, Hayes and Crooked Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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.

&&

A Tornado Watch remains in effect until 700 PM CDT for north central
and northeastern Wisconsin.

LAT...LON 4489 8873 4494 8874 4494 8885 4496 8889
      4512 8865 4512 8864 4513 8864 4535 8831
      4520 8831 4520 8819 4511 8819 4511 8816
      4486 8860 4486 8867
TIME...MOT...LOC 1738Z 226DEG 24KT 4510 8843 

TORNADO...POSSIBLE
HAIL...2.00IN
WIND...60MPH
 
$$

KLB

563 
WWUS53 KGRB 011802
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
102 PM CDT SUN JUL 1 2018

WIC078-011811-
/O.CAN.KGRB.SV.W.0021.000000T0000Z-180701T1845Z/
Menominee WI-
102 PM CDT SUN JUL 1 2018

...THE SEVERE THUNDERSTORM WARNING FOR MENOMINEE COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 700 PM CDT for northeastern
Wisconsin.

LAT...LON 4507 8849 4511 8848 4512 8853 4517 8858
      4535 8831 4520 8831 4520 8819 4511 8819
      4511 8816 4499 8838
TIME...MOT...LOC 1801Z 232DEG 33KT 4524 8823 

$$

WIC083-011845-
/O.CON.KGRB.SV.W.0021.000000T0000Z-180701T1845Z/
Oconto WI-
102 PM CDT SUN JUL 1 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM CDT
FOR NORTHERN OCONTO COUNTY...

At 101 PM CDT, a severe thunderstorm was located 10 miles west of
Crivitz, or 30 miles west of Menominee, moving northeast at 40 mph.

HAZARD...Two inch 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.

Locations impacted include...
Mountain, Breed, Suring, White Potato Lake and Crooked Lake. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

&&

A Tornado Watch remains in effect until 700 PM CDT for northeastern
Wisconsin.

LAT...LON 4507 8849 4511 8848 4512 8853 4517 8858
      4535 8831 4520 8831 4520 8819 4511 8819
      4511 8816 4499 8838
TIME...MOT...LOC 1801Z 232DEG 33KT 4524 8823 

TORNADO...POSSIBLE
HAIL...2.00IN
WIND...60MPH
 
$$

KLB

165 
WWUS53 KGRB 011829
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
129 PM CDT SUN JUL 1 2018

WIC083-011845-
/O.CON.KGRB.SV.W.0021.000000T0000Z-180701T1845Z/
Oconto WI-
129 PM CDT SUN JUL 1 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM CDT
FOR CENTRAL OCONTO COUNTY...

At 129 PM CDT, a severe thunderstorm was located 9 miles north of
Gillett, or 20 miles northeast of Shawano, moving northeast at 40
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...
Breed, Suring and White Potato Lake. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

&&

A Tornado Watch remains in effect until 700 PM CDT for northeastern
Wisconsin.

LAT...LON 4507 8845 4512 8840 4520 8831 4520 8819
      4511 8819 4511 8816 4499 8838
TIME...MOT...LOC 1829Z 236DEG 35KT 4503 8837 

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

KLB

234 
WWUS53 KGRB 011843
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
143 PM CDT SUN JUL 1 2018

WIC083-011853-
/O.EXP.KGRB.SV.W.0021.000000T0000Z-180701T1845Z/
Oconto WI-
143 PM CDT SUN JUL 1 2018

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL OCONTO COUNTY WILL
EXPIRE AT 145 PM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

A Tornado Watch remains in effect until 700 PM CDT for northeastern
Wisconsin.

LAT...LON 4507 8845 4512 8840 4520 8831 4520 8819
      4511 8819 4511 8816 4499 8838
TIME...MOT...LOC 1843Z 226DEG 24KT 4509 8828 

$$

KLB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 7:16 PM CDT	Special Weather Statement	GRB	Outagamie, Waupaca, Winnebago	59 min
Jun 30, 8:45 PM CDT	Special Weather Statement	GRB	Florence	15 min
Jun 30, 9:09 PM CDT	Special Weather Statement	GRB	Vilas	51 min
Jul 1, 3:29 AM CDT	Small Craft Advisory	GRB		22 hr
Jul 1, 3:43 AM CDT	Beach Hazards Statement	GRB	Door, Kewaunee, Manitowoc	21 hr
Jul 1, 12:01 PM CDT	Special Weather Statement	GRB	Shawano	44 min
Jul 1, 12:10 PM CDT	Severe Thunderstorm Warning	GRB	Menominee, Portage, Shawano, Waupaca	50 min
Jul 1, 12:18 PM CDT	Tornado Warning	GRB	Shawano, Waupaca	42 min
Jul 1, 12:43 PM CDT	Tornado Warning	GRB	Marinette, Oconto	47 min
Jul 1, 1:20 PM CDT	Severe Thunderstorm Warning	GRB	Marinette	55 min
Jul 1, 1:26 PM CDT	Special Weather Statement	GRB	Brown	49 min
Jul 1, 1:28 PM CDT	Special Marine Warning	GRB		92 min
Jul 1, 1:37 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Oconto, Outagamie	53 min
Jul 1, 1:38 PM CDT	Special Weather Statement	GRB	Waushara	52 min
Jul 1, 1:54 PM CDT	Special Weather Statement	GRB	Winnebago	51 min
Jul 1, 2:06 PM CDT	Severe Thunderstorm Warning	GRB	Outagamie, Waupaca, Waushara, Winnebago	39 min
Jul 1, 2:10 PM CDT	Special Marine Warning	GRB		65 min
Jul 1, 2:27 PM CDT	Special Weather Statement	GRB	Door	48 min
Jul 1, 2:40 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Oconto, Outagamie, Shawano	50 min
Jul 1, 2:53 PM CDT	Special Marine Warning	GRB		106 min
Jul 1, 3:13 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Marinette, Oconto	47 min
Jul 1, 3:24 PM CDT	Severe Thunderstorm Warning	GRB	Door	66 min
Jul 1, 3:27 PM CDT	Special Marine Warning	GRB		93 min
Jul 1, 5:00 PM CDT	Special Marine Warning	GRB		30 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2018 Every severe thunderstorm warning in 2018

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.