Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 3, NWS Green Bay, WI

April 10, 20114 counties in Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Apr 10, 2011, 3:13 AM CDT for 4 counties in Wisconsin. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 10, 2011, 3:13 AM CDT (08:13 UTC)
Expired: Apr 10, 2011, 3:43 AM CDT
In force: 30 min
Issued by: NWS Green Bay, WI
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Brown County, WI, Oconto County, WI, Outagamie County, WI, Shawano County, WI

The radar

The Green Bay radar (KGRB), 17 km from the middle of the area, began a volume at 08:14 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.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 8.2 hours before the alert went out and 19 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: 581 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 128 m²/s²
0-3 km storm-relative helicity: 114 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

941 
WUUS53 KGRB 100813
SVRGRB
WIC009-083-087-115-100900-
/O.NEW.KGRB.SV.W.0003.110410T0813Z-110410T0900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
313 AM CDT SUN APR 10 2011

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN BROWN COUNTY IN NORTHEAST WISCONSIN...
  OCONTO COUNTY IN NORTHEAST WISCONSIN...
  NORTHEASTERN OUTAGAMIE COUNTY IN NORTHEAST WISCONSIN...
  SHAWANO COUNTY IN NORTHEAST WISCONSIN...

* UNTIL 400 AM CDT

* AT 310 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
  EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
  FROM NAVARINO TO BLACK CREEK...AND MOVING NORTHEAST AT 50 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  PULASKI AROUND 325 AM CDT.

OTHER LOCATIONS IMPACTED BY THESE SEVERE THUNDERSTORMS INCLUDE ROSE
LAWN...HOFA PARK...ANGELICA...ONEIDA...KUNESH...FLINTVILLE...
ANSTON...SAMPSON...HOWARD AND ABRAMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE FOR WINDS OF 60 MPH OR
STRONGER. IF INDOORS...STAY AWAY FROM WINDOWS. IF OUTSIDE...QUICKLY
MOVE TO A STURDY SHELTER.

&&

LAT...LON 4441 8851 4461 8857 4489 8783 4487 8782
      4482 8789 4475 8793 4472 8798 4466 8797
      4466 8799 4464 8800 4460 8797 4459 8799
      4460 8801 4455 8801
TIME...MOT...LOC 0812Z 243DEG 45KT 4463 8844 4447 8840
WIND...HAIL 60MPH <.75IN

$$

MPC

2 follow-up statements

207 
WWUS53 KGRB 100828
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
328 AM CDT SUN APR 10 2011

WIC009-083-087-115-100900-
/O.CON.KGRB.SV.W.0003.000000T0000Z-110410T0900Z/
SHAWANO WI-BROWN WI-OUTAGAMIE WI-OCONTO WI-
328 AM CDT SUN APR 10 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR OCONTO...
NORTHEASTERN OUTAGAMIE...NORTHWESTERN BROWN AND EXTREME EASTERN
SHAWANO COUNTIES UNTIL 400 AM CDT...

AT 327 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THESE STORMS WERE LOCATED ALONG A LINE EXTENDING 
FROM PULASKI TO GREEN BAY...MOVING NORTHEAST AT 50 MPH.

SEVERE THUNDERSTORMS WILL AFFECT MAINLY RURAL AREAS OF EXTREME
EASTERN SHAWANO...NORTHEASTERN OUTAGAMIE...NORTHWESTERN BROWN AND
OCONTO COUNTIES...INCLUDING THE FOLLOWING LOCATIONS HOWARD...
ABRAMS...SUAMICO...SOBIESKI...BROOKSIDE...LITTLE SUAMICO AND
PENSAUKEE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ARE IN THE PATH OF THIS STORM...PREPARE FOR WINDS OF 60 MPH OR
STRONGER. IF INDOORS...STAY AWAY FROM WINDOWS. IF OUTSIDE...QUICKLY
MOVE TO A STURDY SHELTER.

&&

LAT...LON 4449 8822 4470 8829 4489 8783 4487 8782
      4482 8789 4475 8793 4472 8798 4466 8797
      4466 8799 4464 8800 4460 8797 4459 8799
      4460 8801 4455 8801
TIME...MOT...LOC 0827Z 243DEG 45KT 4471 8820 4455 8816
WIND...HAIL 60MPH <.75IN

$$

MPC

629 
WWUS53 KGRB 100843
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
343 AM CDT SUN APR 10 2011

WIC009-083-087-115-100853-
/O.CAN.KGRB.SV.W.0003.000000T0000Z-110410T0900Z/
SHAWANO WI-BROWN WI-OUTAGAMIE WI-OCONTO WI-
343 AM CDT SUN APR 10 2011

...THE SEVERE THUNDERSTORM WARNING FOR OCONTO...NORTHEASTERN
OUTAGAMIE...NORTHWESTERN BROWN AND EXTREME EASTERN SHAWANO COUNTIES
IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR 
PROPERTY.  HOWEVER...GUSTY WINDS UP TO 45 MPH ARE STILL POSSIBLE 
WITH THESE THUNDERSTORMS.

LAT...LON 4449 8822 4470 8829 4489 8783 4487 8782
      4482 8789 4475 8793 4472 8798 4466 8797
      4466 8799 4464 8800 4460 8797 4459 8799
      4460 8801 4455 8801
TIME...MOT...LOC 0843Z 243DEG 45KT 4480 8795 4464 8791

$$

MPC

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 9, 7:09 PM CDT	Marine Dense Fog Advisory	GRB		15 hr
Apr 9, 9:25 PM CDT	Dense Fog Advisory	GRB	Door, Kewaunee, Manitowoc	6 hr
Apr 9, 11:36 PM CDT	Severe Thunderstorm Warning	GRB	Forest, Oneida, Vilas	39 min
Apr 9, 11:58 PM CDT	Severe Thunderstorm Warning	GRB	Florence	34 min
Apr 10, 3:20 AM CDT	Special Marine Warning	GRB		34 min
Apr 10, 3:41 AM CDT	Small Craft Advisory	GRB		42 hr
Apr 10, 10:13 AM CDT	Marine Dense Fog Advisory	GRB		11 hr
Apr 10, 10:20 AM CDT	River Flood Warning	GRB	Wood	4 days
Apr 10, 10:36 AM CDT	River Flood Warning	GRB	Marathon	47 hr
Apr 10, 1:28 PM CDT	River Flood Warning	GRB	Shawano, Waupaca	4 days
Apr 10, 3:38 PM CDT	River Flood Warning	GRB	Marathon	65 hr
Apr 10, 4:10 PM CDT	River Flood Warning	GRB	Lincoln, Marathon	64 hr
Apr 10, 4:17 PM CDT	River Flood Warning	GRB	Wood	41 hr
Apr 10, 4:26 PM CDT	Severe Thunderstorm Warning	GRB	Kewaunee	19 min
Apr 10, 4:28 PM CDT	Special Marine Warning	GRB		45 min
Apr 10, 5:31 PM CDT	Tornado Warning	GRB	Lincoln, Marathon	44 min
Apr 10, 6:04 PM CDT	Severe Thunderstorm Warning	GRB	Portage, Waushara, Wood	56 min
Apr 10, 6:14 PM CDT	Tornado Warning	GRB	Langlade, Lincoln, Marathon, Shawano	46 min
Apr 10, 6:31 PM CDT	Tornado Warning	GRB	Waushara	29 min
Apr 10, 6:40 PM CDT	Tornado Warning	GRB	Langlade, Lincoln	50 min
Apr 10, 6:58 PM CDT	Tornado Warning	GRB	Waupaca, Waushara, Winnebago	32 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2011 Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.