Alert archive / Wisconsin / Tornado Warnings in 2007

Tornado Warning 14, NWS Green Bay, WI

June 7, 2007Shawano County, Wisconsin

NWS Green Bay, WI issued this tornado warning at Jun 7, 2007, 5:15 PM CDT for Shawano County, Wisconsin. It was in force for 29 min. 2 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
Jun 7, 2007, 5:15 PM CDT (22:15 UTC)
Expired
Jun 7, 2007, 5:44 PM CDT
In force
29 min
Issued by
NWS Green Bay, WI
Area
Counties, with a storm outline in the text

County Shawano County, WI

The radar

The Green Bay radar (KGRB), 69 km from the middle of the area, began a volume at 22:17 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
Jun 7, 5:17 PM CDTTSTM WND DMGTilleda, WIFEW TREES DOWN IN AREA.
Jun 7, 5:22 PM CDTHAIL 0.75Gresham, 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
Jun 7, 2:41 PM CDTTornado Watch PDSSPC9 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.3 hours before the alert went out and 70 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 2007-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 33 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 2007-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 212 square meters per square second.19395878Sfc1 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
33 J/kg
Mixed-layer CIN
-754 J/kg
Mixed-layer LCL
992 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
212 m²/s²
0-3 km storm-relative helicity
214 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KGRB 072215
TORGRB
WIC115-072315-
/O.NEW.KGRB.TO.W.0014.070607T2215Z-070607T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
515 PM CDT THU JUN 7 2007

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* TORNADO WARNING FOR...
  SHAWANO COUNTY IN NORTHEAST WISCONSIN...

* UNTIL 615 PM CDT

* AT 512 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO 13 MILES SOUTHWEST OF SPLIT 
  ROCK...  OR ABOUT 14 MILES NORTH OF WAUPACA. THIS TORNADO WAS
  MOVING NORTHEAST AT 55 MPH. 

LAT...LON 4469 8920 4469 8893 4484 8841 4486 8874
      4495 8878

$$

HELMAN
2 follow-up statements
000 
WWUS53 KGRB 072225 RRA
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
524 PM CDT THU JUN 7 2007

WIC115-072315-
/O.CON.KGRB.TO.W.0014.000000T0000Z-070607T2315Z/
SHAWANO WI-
524 PM CDT THU JUN 7 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR SHAWANO
COUNTY...

AT 521 PM...DOPPLER RADAR CONTINUED TO INDICATE A TORNADO.  THIS
TORNADO WAS LOCATED NEAR LEOPOLIS...OR ABOUT 12 MILES WEST OF
SHAWANO...MOVING NORTHEAST AT 60 MPH.

* THE TORNADO WILL BE NEAR...
  RED RIVER AND THORNTON BY 530 PM...

A TORNADO MAY ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP
SHORTLY. IF YOU ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE
INDOORS AND TO THE LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM
WINDOWS.

LAT...LON 4469 8920 4469 8893 4485 8846 4486 8874
      4493 8875

$$

HELMAN
000 
WWUS53 KGRB 072244
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
544 PM CDT THU JUN 7 2007

WIC115-072254-
/O.CAN.KGRB.TO.W.0014.000000T0000Z-070607T2315Z/
SHAWANO WI-
544 PM CDT THU JUN 7 2007

...THE TORNADO WARNING FOR SHAWANO COUNTY IS CANCELLED...

THE SEVERE THUNDERSTORM THAT PROMPTED THE WARNING HAS WEAKENED.

LAT...LON 4469 8920 4469 8893 4485 8846 4486 8874
      4493 8875

$$

HELMAN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 4:23 AM CDTWind AdvisoryGRBBrown, Calumet, Door, Florence, Forest, Kewaunee and 16 more15 hr
Jun 7, 2:47 PM CDTSevere Thunderstorm WarningGRBWood58 min
Jun 7, 3:02 PM CDTTornado WarningGRBWood43 min
Jun 7, 3:09 PM CDTSevere Thunderstorm WarningGRBVilas36 min
Jun 7, 3:39 PM CDTSevere Thunderstorm WarningGRBMarathon66 min
Jun 7, 3:46 PM CDTTornado WarningGRBWood44 min
Jun 7, 3:55 PM CDTTornado WarningGRBMarathon47 min
Jun 7, 4:09 PM CDTTornado WarningGRBShawano36 min
Jun 7, 4:25 PM CDTTornado WarningGRBWood20 min
Jun 7, 4:26 PM CDTTornado WarningGRBPortage40 min
Jun 7, 4:29 PM CDTTornado WarningGRBLanglade, Menominee46 min
Jun 7, 4:42 PM CDTSevere Thunderstorm WarningGRBShawano33 min
Jun 7, 4:51 PM CDTTornado WarningGRBOconto39 min
Jun 7, 5:10 PM CDTTornado WarningGRBMarinette41 min
Jun 7, 5:48 PM CDTSevere Thunderstorm WarningGRBWaushara27 min
Jun 7, 5:49 PM CDTSevere Thunderstorm WarningGRBOconto23 min
Jun 7, 5:56 PM CDTSpecial Marine WarningGRB73 min
Jun 7, 6:02 PM CDTSevere Thunderstorm WarningGRBOutagamie, Winnebago43 min
Jun 7, 6:16 PM CDTSevere Thunderstorm WarningGRBMarinette22 min
Jun 7, 6:50 PM CDTMarine Weather StatementGRB85 min
Jun 7, 6:54 PM CDTSpecial Marine WarningGRB61 min

Nearby

Tornado Warnings in Wisconsin, 2007Every tornado warning in 2007Tornadoes in 2007

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.