Alert archive / Wisconsin / Tornado Warnings in 2013

Tornado Warning 7, NWS Green Bay, WI

August 21, 2013Menominee County, Oconto County, Shawano County, Wisconsin

NWS Green Bay, WI issued this tornado warning at Aug 21, 2013, 7:16 PM CDT for Menominee County, Oconto County, Shawano County, Wisconsin. It was in force for 44 min. 5 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
Aug 21, 2013, 7:16 PM CDT (00:16 UTC)
Expired
Aug 21, 2013, 8:00 PM CDT
In force
44 min
Issued by
NWS Green Bay, WI
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Menominee County, WI, Oconto County, WI, Shawano County, WI

The radar

The Green Bay radar (KGRB), 36 km from the middle of the area, began a volume at 00:19 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

TimeReportWhereRemark
Aug 21, 7:20 PM CDTTSTM WND DMG5 W Shawano, WISEVERAL TREES DOWN WEST OF TOWN.
Aug 21, 7:20 PM CDTTSTM WND GST 54Shawano, WIREPORTED AT SHAWANO HIGH SCHOOL MESONET. TIME ESTIMATED BY RADAR.
Aug 21, 7:25 PM CDTTSTM WND DMGShawano, WITREES DOWN.
Aug 21, 7:28 PM CDTTSTM WND GST 70Shawano, WI
Aug 21, 7:37 PM CDTFUNNEL CLOUDBonduel, WIREPORTED BY FIRE DEPARTMENT.

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.

IssuedProductOfficeLasted
Aug 21, 2:26 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.3 hours before the alert went out and 38 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-pSkew-T log-p diagram, Green Bay/Straub, WI at 00:00Z on 2013-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2954 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Green Bay/Straub, WI at 00:00Z on 2013-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2954 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
1211 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
141 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

402 
WFUS53 KGRB 220016
TORGRB
WIC078-083-115-220100-
/O.NEW.KGRB.TO.W.0007.130822T0016Z-130822T0100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
716 PM CDT WED AUG 21 2013

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN MENOMINEE COUNTY IN NORTHEAST WISCONSIN...
  OCONTO COUNTY IN NORTHEAST WISCONSIN...
  SHAWANO COUNTY IN NORTHEAST WISCONSIN...

* UNTIL 800 PM CDT

* AT 715 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 7 MILES WEST OF KESHENA...AND MOVING EAST AT 45
  MPH.

  HAZARD...TORNADO AND QUARTER SIZE HAIL.

  SOURCE...RADAR INDICATED ROTATION.

  IMPACT...MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO
           ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS
           WILL BE DEADLY TO PEOPLE AND ANIMALS. TREE DAMAGE IS
           LIKELY.

* THIS DANGEROUS STORM WILL BE NEAR...
  KESHENA AND LEGEND LAKE AROUND 725 PM CDT.
  SHAWANO AROUND 730 PM CDT.

OTHER LOCATIONS IN THE WARNING INCLUDE COLLEGE OF MENOMINEE NATION...
SHAWANO LAKE...CECIL...BONDUEL...PULCIFER...ZACHOW...ADVANCE...GREEN
VALLEY...KRAKOW AND MORGAN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4480 8891 4497 8883 4483 8810 4467 8817
      4467 8823 4468 8825 4468 8826 4466 8824
      4463 8825
TIME...MOT...LOC 0017Z 288DEG 40KT 4486 8874

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

ECKBERG/BERSCH
4 follow-up statements
729 
WWUS53 KGRB 220025
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
725 PM CDT WED AUG 21 2013

WIC078-083-115-220100-
/O.CON.KGRB.TO.W.0007.000000T0000Z-130822T0100Z/
MENOMINEE WI-SHAWANO WI-OCONTO WI-
725 PM CDT WED AUG 21 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR OCONTO...SHAWANO AND
SOUTHEASTERN MENOMINEE COUNTIES UNTIL 800 PM CDT...

AT 719 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR KESHENA...AND MOVING SOUTHEAST AT 45 MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO
         ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS WILL
         BE DEADLY TO PEOPLE AND ANIMALS. TREE DAMAGE IS LIKELY.

THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF OCONTO...
SHAWANO AND SOUTHEASTERN MENOMINEE COUNTIES...INCLUDING THE FOLLOWING
LOCATIONS...SHAWANO LAKE...CECIL...BONDUEL...ZACHOW...ADVANCE...GREEN
VALLEY...KRAKOW...MORGAN...SAMPSON AND CHASE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

&&

LAT...LON 4480 8891 4497 8883 4483 8810 4467 8817
      4467 8823 4468 8825 4468 8826 4466 8824
      4463 8825
TIME...MOT...LOC 0024Z 288DEG 40KT 4482 8861

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

ECKBERG/BERSCH
491 
WWUS53 KGRB 220037
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
737 PM CDT WED AUG 21 2013

WIC078-220047-
/O.CAN.KGRB.TO.W.0007.000000T0000Z-130822T0100Z/
MENOMINEE WI-
737 PM CDT WED AUG 21 2013

...THE TORNADO WARNING FOR SOUTHEASTERN MENOMINEE COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED 
AREA.

LAT...LON 4471 8857 4489 8847 4483 8810 4467 8817
      4467 8823 4468 8825 4468 8826 4466 8824
      4463 8825
TIME...MOT...LOC 0037Z 287DEG 41KT 4474 8834

$$

WIC083-115-220100-
/O.CON.KGRB.TO.W.0007.000000T0000Z-130822T0100Z/
SHAWANO WI-OCONTO WI-
737 PM CDT WED AUG 21 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR OCONTO AND SHAWANO
COUNTIES UNTIL 800 PM CDT...

AT 731 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 8 MILES EAST OF SHAWANO...AND MOVING EAST AT 45 MPH.

HAZARD...TORNADO AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED ROTATION.

IMPACT...MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO
         ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS WILL
         BE DEADLY TO PEOPLE AND ANIMALS. TREE DAMAGE IS LIKELY.

LOCATIONS IMPACTED INCLUDE...
GREEN VALLEY...ANGELICA...KRAKOW...LANEY...MORGAN...SAMPSON AND
CHASE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

&&

LAT...LON 4471 8857 4489 8847 4483 8810 4467 8817
      4467 8823 4468 8825 4468 8826 4466 8824
      4463 8825
TIME...MOT...LOC 0037Z 287DEG 41KT 4474 8834

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

ECKBERG/BERSCH
927 
WWUS53 KGRB 220052
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
752 PM CDT WED AUG 21 2013

WIC083-115-220100-
/O.CON.KGRB.TO.W.0007.000000T0000Z-130822T0100Z/
SHAWANO WI-OCONTO WI-
752 PM CDT WED AUG 21 2013

...A TORNADO WARNING REMAINS IN EFFECT FOR OCONTO AND SHAWANO
COUNTIES UNTIL 800 PM CDT...

AT 747 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 9 MILES NORTHWEST OF PULASKI...AND MOVING EAST AT 35 MPH.

HAZARD...TORNADO.

SOURCE...RADAR INDICATED ROTATION. A FUNNEL CLOUD WAS SEEN BY A 
SPOTTER JUST EAST OF BONDUEL.

IMPACT...MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO
         ROOFS...WINDOWS AND VEHICLES WILL OCCUR. FLYING DEBRIS WILL
         BE DEADLY TO PEOPLE AND ANIMALS. TREE DAMAGE IS LIKELY.

LOCATIONS IMPACTED INCLUDE...
GREEN VALLEY...ANGELICA...KRAKOW...LANEY...MORGAN...CHASE AND
SAMPSON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

HEAVY RAINFALL MAY HIDE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE
TORNADO. TAKE COVER NOW.

&&

LAT...LON 4471 8857 4489 8847 4483 8810 4467 8817
      4467 8823 4468 8825 4468 8826 4466 8824
      4463 8825
TIME...MOT...LOC 0051Z 288DEG 30KT 4473 8833

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

ECKBERG/BERSCH
850 
WWUS53 KGRB 220056
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
756 PM CDT WED AUG 21 2013

WIC083-115-220105-
/O.EXP.KGRB.TO.W.0007.000000T0000Z-130822T0100Z/
SHAWANO WI-OCONTO WI-
756 PM CDT WED AUG 21 2013

...THE TORNADO WARNING FOR OCONTO AND SHAWANO COUNTIES WILL EXPIRE AT
800 PM CDT...

HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR 
EASTERN SHAWANO AND SOUTHERN OCONTO COUNTIES UNTIL 830PM.


LAT...LON 4471 8857 4489 8847 4483 8810 4467 8817
      4467 8823 4468 8825 4468 8826 4466 8824
      4463 8825
TIME...MOT...LOC 0055Z 288DEG 30KT 4472 8829

$$

ECKBERG/BERSCH

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 21, 7:01 PM CDTSpecial Marine WarningGRB59 min
Aug 21, 7:08 PM CDTSevere Thunderstorm WarningGRBMenominee, Oconto, Shawano, Waupaca52 min
Aug 21, 7:26 PM CDTSpecial Marine WarningGRB2 hr
Aug 21, 7:26 PM CDTSevere Thunderstorm WarningGRBBrown, Calumet, Kewaunee, Manitowoc, Oconto, Outagamie and 2 more64 min
Aug 21, 7:42 PM CDTSevere Thunderstorm WarningGRBDoor33 min
Aug 21, 8:28 PM CDTSevere Thunderstorm WarningGRBBrown, Calumet, Kewaunee, Manitowoc32 min

Nearby

Tornado Warnings in Wisconsin, 2013Every tornado warning in 2013Tornadoes in 2013

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.