Alert archive / Wisconsin / Tornado Warnings in 2011

Tornado Warning 21, NWS Green Bay, WI

May 22, 2011Portage County, Wood County, Wisconsin

NWS Green Bay, WI issued this tornado warning at May 22, 2011, 5:45 PM CDT for Portage County, Wood County, Wisconsin. It was in force for 45 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
May 22, 2011, 5:45 PM CDT (22:45 UTC)
Expired
May 22, 2011, 6:30 PM CDT
In force
45 min
Issued by
NWS Green Bay, WI
Area
Storm-based polygon

Counties Portage County, WI, Wood County, WI

The radar

The La Crosse radar (KARX), 117 km from the middle of the area, began a volume at 22:47 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
May 22, 6:04 PM CDTHAIL 0.5Nekoosa, WISLIGHTLY LARGER THAN 1/2 INCH.
May 22, 6:08 PM CDTHAIL 1Nekoosa, WI
May 22, 6:14 PM CDTHAIL 12 S Wisconsin Rapids, WI
May 22, 6:16 PM CDTTORNADO4 E Nekoosa, WI3 TO 4 HOUSES DAMAGED IN THE SARATOGA TOWNSHIP. 1 GARAGE DESTROYED NEAR HWY 73 AND COUNTY ROAD EVERGREEN. 3 MINOR INJURIES IN SARATOGA. SEVERAL LARGE POWER POLES DOWN NEAR COUNTY LINE RD THROUGH COUNTY ROAD G.
May 22, 6:16 PM CDTTORNADONekoosa, WISTRUCTURE DAMAGE AND A BARN MISSING.
May 22, 6:29 PM CDTTORNADO5 S Wisconsin Rapids, WISEVERAL REPORTS OF MAJOR DAMAGE. TORNADO WENT THROUGH GRAND RAPIDS. LOCATION ESTIMATED.
May 22, 6:30 PM CDTHAIL 1.75Kellner, 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.

IssuedProductOfficeLasted
May 22, 2:04 PM CDTTornado WatchSPC9 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.8 hours before the alert went out and 143 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 12:00Z on 2011-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 351 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 12:00Z on 2011-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 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
351 J/kg
Mixed-layer CIN
-121 J/kg
Mixed-layer LCL
1006 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
-1 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.4

Open this sounding in Storm Lab

The text

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

324 
WFUS53 KGRB 222245
TORGRB
WIC097-141-222330-
/O.NEW.KGRB.TO.W.0021.110522T2245Z-110522T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
545 PM CDT SUN MAY 22 2011

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN PORTAGE COUNTY IN CENTRAL WISCONSIN...
  SOUTHEASTERN WOOD COUNTY IN CENTRAL WISCONSIN...

* UNTIL 630 PM CDT

* AT 539 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  A CONFIRMED TORNADO 10 MILES SOUTHWEST OF BABCOCK...OR 24 MILES
  NORTHWEST OF FRIENDSHIP. DOPPLER RADAR SHOWED THIS TORNADO MOVING
  NORTHEAST AT 40 MPH.

* THE TORNADO WILL AFFECT MAINLY RURAL AREAS OF SOUTHEASTERN WOOD AND
  SOUTHWESTERN PORTAGE COUNTIES...INCLUDING THE FOLLOWING LOCATIONS
  NEKOOSA...PORT EDWARDS AND KELLNER.

* THIS THUNDERSTORM HAS A HISTORY OF PRODUCING LARGE TRACK TORNADOES.

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 4441 8973 4424 8961 4424 9019 4425 9019
TIME...MOT...LOC 2244Z 246DEG 34KT 4418 9016

$$

MPC
2 follow-up statements
002 
WWUS53 KGRB 222309
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
609 PM CDT SUN MAY 22 2011

WIC097-141-222330-
/O.CON.KGRB.TO.W.0021.000000T0000Z-110522T2330Z/
PORTAGE WI-WOOD WI-
609 PM CDT SUN MAY 22 2011

...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN WOOD AND
SOUTHWESTERN PORTAGE COUNTIES UNTIL 630 PM CDT...

AT 607 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
CONFIRMED TORNADO.  THIS TORNADO WAS LOCATED NEAR NEW ROME...OR 9
MILES SOUTH OF WISCONSIN RAPIDS...MOVING NORTHEAST AT 40 MPH.

IN ADDITION...AT 608 PM...A TRAINED SPOTTER REPORTED QUARTER SIZED 
HAIL IN NEKOOSA WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
  PORT EDWARDS AND KELLNER.

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 4441 8973 4424 8961 4424 9019 4425 9019
TIME...MOT...LOC 2309Z 246DEG 34KT 4428 8986

$$

MPC
099 
WWUS53 KGRB 222326
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
626 PM CDT SUN MAY 22 2011

WIC097-141-222335-
/O.EXP.KGRB.TO.W.0021.000000T0000Z-110522T2330Z/
PORTAGE WI-WOOD WI-
626 PM CDT SUN MAY 22 2011

...THE TORNADO WARNING FOR SOUTHEASTERN WOOD AND SOUTHWESTERN PORTAGE
COUNTIES HAS BEEN REISSUED...

PLEASE REFER TO THAT BULLETIN FOR THE LATEST SEVERE WEATHER
INFORMATION.

REMEMBER...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEAST 
WOOD...SOUTHERN PORTAGE AND WESTERN WAUPACA UNTIL 700 PM.

LAT...LON 4441 8973 4424 8961 4424 9019 4425 9019
TIME...MOT...LOC 2325Z 246DEG 34KT 4434 8967

$$

MPC

The office that day

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

IssuedProductOfficeCountiesLasted
May 22, 2:23 PM CDTSevere Thunderstorm WarningGRBMarathon, Portage, Wood52 min
May 22, 2:54 PM CDTSevere Thunderstorm WarningGRBWaushara51 min
May 22, 3:14 PM CDTSevere Thunderstorm WarningGRBPortage, Waupaca46 min
May 22, 3:30 PM CDTSevere Thunderstorm WarningGRBWinnebago45 min
May 22, 3:45 PM CDTSevere Thunderstorm WarningGRBWaushara30 min
May 22, 3:48 PM CDTTornado WarningGRBOutagamie, Waupaca, Winnebago42 min
May 22, 3:53 PM CDTSevere Thunderstorm WarningGRBPortage, Waupaca37 min
May 22, 4:29 PM CDTSevere Thunderstorm WarningGRBOutagamie46 min
May 22, 4:47 PM CDTSevere Thunderstorm WarningGRBBrown43 min
May 22, 4:54 PM CDTSpecial Marine WarningGRB96 min
May 22, 5:00 PM CDTAreal Flood AdvisoryGRBBrown, Outagamie73 min
May 22, 5:02 PM CDTSevere Thunderstorm WarningGRBBrown, Calumet, Outagamie, Winnebago32 min
May 22, 5:14 PM CDTSevere Thunderstorm WarningGRBOutagamie17 min
May 22, 5:29 PM CDTSevere Thunderstorm WarningGRBBrown, Door, Kewaunee61 min
May 22, 5:32 PM CDTSevere Thunderstorm WarningGRBWood43 min
May 22, 5:51 PM CDTSpecial Marine WarningGRB84 min
May 22, 6:00 PM CDTSevere Thunderstorm WarningGRBDoor46 min
May 22, 6:18 PM CDTTornado WarningGRBPortage, Waupaca, Wood42 min
May 22, 6:35 PM CDTTornado WarningGRBOneida, Vilas55 min
May 22, 6:56 PM CDTSevere Thunderstorm WarningGRBPortage, Shawano, Waupaca34 min

Nearby

Tornado Warnings in Wisconsin, 2011Every tornado warning in 2011Tornadoes in 2011

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.