Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 44, NWS Green Bay, WI

July 26, 2021Kewaunee County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Jul 26, 2021, 4:58 PM CDT for Kewaunee County, Wisconsin. It was in force for 32 min. 1 report 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 26, 2021, 4:58 PM CDT (21:58 UTC)
Expired: Jul 26, 2021, 5:30 PM CDT
In force: 32 min
Issued by: NWS Green Bay, WI
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Kewaunee County, WI

The radar

The Green Bay radar (KGRB), 44 km from the middle of the area, began a volume at 22:00 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 26, 5:11 PM CDT	TSTM WND DMG	3 Ene Rankin, WI	LAW ENFORCEMENT REPORTED TWO TREES DOWN AND BLOCKING A ROAD IN ALGOMA. DELAYED REPORT.

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, 10.0 hours before the alert went out and 44 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2259 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

158 
WUUS53 KGRB 262158
SVRGRB
WIC061-262230-
/O.NEW.KGRB.SV.W.0044.210726T2158Z-210726T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Green Bay WI
458 PM CDT Mon Jul 26 2021

The National Weather Service in Green Bay has issued a

* Severe Thunderstorm Warning for...
  Northern Kewaunee County in northeastern Wisconsin...

* Until 530 PM CDT.

* At 458 PM CDT, a severe thunderstorm was located near Luxemburg, or
  9 miles northwest of Kewaunee, moving east at 35 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

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

* This severe thunderstorm will be near...
  Algoma around 515 PM CDT.

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 4468 8773 4467 8732 4452 8742 4449 8768
TIME...MOT...LOC 2158Z 258DEG 29KT 4458 8761 

HAIL...0.75IN
WIND...60MPH
 
$$

MPC

3 follow-up statements

100 
WWUS53 KGRB 262211
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
511 PM CDT Mon Jul 26 2021

WIC061-262230-
/O.CON.KGRB.SV.W.0044.000000T0000Z-210726T2230Z/
Kewaunee WI-
511 PM CDT Mon Jul 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR NORTHERN KEWAUNEE COUNTY...

At 510 PM CDT, a severe thunderstorm was located over Algoma, or 10
miles north of Kewaunee, moving east at 35 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

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

This severe thunderstorm will remain over mainly rural areas of
northern Kewaunee County, including the following locations...
Slovan, Gregorville, Rankin, Euren, Rosiere, Duvall, Scarboro, Rio
Creek, Kodan and Alaska.

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 4468 8773 4467 8732 4452 8742 4449 8768
TIME...MOT...LOC 2210Z 258DEG 29KT 4460 8747 

HAIL...0.75IN
WIND...60MPH
 
$$

MPC

768 
WWUS53 KGRB 262221
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
521 PM CDT Mon Jul 26 2021

WIC061-262230-
/O.CON.KGRB.SV.W.0044.000000T0000Z-210726T2230Z/
Kewaunee WI-
521 PM CDT Mon Jul 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR NORTHEASTERN KEWAUNEE COUNTY...

At 521 PM CDT, a severe thunderstorm was located over Algoma, or 12
miles northeast of Kewaunee, moving east at 25 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Algoma, Lincoln, Gregorville, Rankin, Euren, Kodan, Rosiere and Rio
Creek.

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 4452 8742 4454 8752 4457 8762 4468 8767
      4467 8732
TIME...MOT...LOC 2221Z 254DEG 24KT 4462 8742 

HAIL...0.75IN
WIND...60MPH
 
$$

Skowronski

309 
WWUS53 KGRB 262230
SVSGRB

Severe Weather Statement
National Weather Service Green Bay WI
530 PM CDT Mon Jul 26 2021

WIC061-262239-
/O.EXP.KGRB.SV.W.0044.000000T0000Z-210726T2230Z/
Kewaunee WI-
530 PM CDT Mon Jul 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN KEWAUNEE COUNTY
WILL EXPIRE AT 530 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 4452 8742 4454 8752 4457 8762 4468 8767
      4467 8732
TIME...MOT...LOC 2229Z 258DEG 29KT 4463 8735 

$$

Skowronski

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 26, 2:39 PM CDT	Special Weather Statement	GRB	Portage	36 min
Jul 26, 2:49 PM CDT	Special Weather Statement	GRB	Marinette	26 min
Jul 26, 3:08 PM CDT	Special Weather Statement	GRB	Waupaca	37 min
Jul 26, 3:21 PM CDT	Special Weather Statement	GRB	Marinette	24 min
Jul 26, 3:28 PM CDT	Special Weather Statement	GRB	Brown	32 min
Jul 26, 3:42 PM CDT	Special Weather Statement	GRB	Outagamie	33 min
Jul 26, 3:45 PM CDT	Severe Thunderstorm Warning	GRB	Marinette	45 min
Jul 26, 3:46 PM CDT	Special Marine Warning	GRB		59 min
Jul 26, 4:01 PM CDT	Special Weather Statement	GRB	Brown	44 min
Jul 26, 4:08 PM CDT	Severe Thunderstorm Warning	GRB	Marinette, Oconto	36 min
Jul 26, 4:10 PM CDT	Special Marine Warning	GRB		65 min
Jul 26, 4:19 PM CDT	Special Weather Statement	GRB	Brown	41 min
Jul 26, 4:32 PM CDT	Severe Thunderstorm Warning	GRB	Door	43 min
Jul 26, 4:34 PM CDT	Special Weather Statement	GRB	Kewaunee	56 min
Jul 26, 4:54 PM CDT	Special Marine Warning	GRB		2 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.