Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 13, NWS Green Bay, WI

May 11, 2011Marinette County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at May 11, 2011, 5:38 AM CDT for Marinette County, Wisconsin. It was in force for 37 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: May 11, 2011, 5:38 AM CDT (10:38 UTC)
Expired: May 11, 2011, 6:15 AM CDT
In force: 37 min
Issued by: NWS Green Bay, WI
Area: Storm-based polygon
Hail: 1.5 in
Wind: 50.0 mph

County Marinette County, WI

The radar

The Green Bay radar (KGRB), 114 km from the middle of the area, began a volume at 10:40 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, 10.6 hours before the alert went out and 115 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: 883 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 171 m²/s²
0-3 km storm-relative helicity: 270 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 11.8

Open this sounding in Storm Lab

The text

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

552 
WUUS53 KGRB 111038
SVRGRB
WIC075-111115-
/O.NEW.KGRB.SV.W.0013.110511T1038Z-110511T1115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
538 AM CDT WED MAY 11 2011

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN MARINETTE COUNTY IN NORTHEAST WISCONSIN...

* UNTIL 615 AM CDT

* AT 535 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. 
  THIS STORM WAS LOCATED 11 MILES SOUTH OF GOODMAN...OR 24 MILES
  SOUTH OF KINGSFORD...AND MOVING EAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF NORTHERN
  MARINETTE COUNTY...INCLUDING THE FOLLOWING LOCATIONS ATHELSTANE AND
  AMBERG.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...AND DEADLY
LIGHTNING. FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 4537 8767 4541 8783 4537 8787 4538 8840
      4571 8828 4572 8792 4571 8779 4568 8777
      4565 8781 4559 8777 4556 8782 4549 8778
      4544 8785 4542 8785 4539 8773 4540 8768
      4538 8766
TIME...MOT...LOC 1037Z 272DEG 18KT 4548 8825
WIND...HAIL <50MPH 1.50IN

$$

ECKBERG

1 follow-up statement

193 
WWUS53 KGRB 111058
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
558 AM CDT WED MAY 11 2011

WIC075-111115-
/O.CON.KGRB.SV.W.0013.000000T0000Z-110511T1115Z/
MARINETTE WI-
558 AM CDT WED MAY 11 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
MARINETTE COUNTY UNTIL 615 AM CDT...

AT 551 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DESTRUCTIVE HAIL UP TO
TENNIS BALL SIZE.  THIS STORM WAS LOCATED 13 MILES SOUTHWEST OF
PEMBINE...OR 23 MILES SOUTH OF KINGSFORD...MOVING EAST AT 25 MPH.

THE SEVERE THUNDERSTORM WILL AFFECT MAINLY RURAL AREAS OF NORTHERN 
MARINETTE COUNTY...INCLUDING THE FOLLOWING LOCATIONS AMBERG...
CALDERON FALLS RESERVOIR....ATHELSTANE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...AND DEADLY
LIGHTNING. FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR OF YOUR HOME OR BUSINESS.

&&

LAT...LON 4537 8767 4541 8783 4537 8787 4538 8833
      4571 8808 4572 8792 4571 8779 4568 8777
      4565 8781 4559 8777 4556 8782 4549 8778
      4544 8785 4542 8785 4539 8773 4540 8768
      4538 8766
TIME...MOT...LOC 1056Z 272DEG 18KT 4548 8811
WIND...HAIL <50MPH 2.50IN

$$

ECKBERG

The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 1:43 AM CDT	Severe Thunderstorm Warning	GRB	Vilas	47 min
May 11, 2:10 AM CDT	Severe Thunderstorm Warning	GRB	Oneida, Vilas	50 min
May 11, 3:05 AM CDT	Severe Thunderstorm Warning	GRB	Oneida	40 min
May 11, 3:40 AM CDT	Severe Thunderstorm Warning	GRB	Forest	50 min
May 11, 4:47 AM CDT	Severe Thunderstorm Warning	GRB	Forest, Langlade, Oconto	43 min
May 11, 6:16 AM CDT	Severe Thunderstorm Warning	GRB	Marinette	44 min
May 11, 6:56 AM CDT	Severe Thunderstorm Warning	GRB	Marinette, Oconto	37 min
May 11, 7:26 AM CDT	Severe Thunderstorm Warning	GRB	Marinette, Oconto	49 min
May 11, 7:32 AM CDT	Special Marine Warning	GRB		88 min
May 11, 8:56 AM CDT	Special Marine Warning	GRB		94 min
May 11, 9:05 AM CDT	Severe Thunderstorm Warning	GRB	Door	43 min
May 11, 9:44 AM CDT	Areal Flood Advisory	GRB	Oconto	106 min
May 11, 10:27 AM CDT	Severe Thunderstorm Warning	GRB	Oconto	48 min
May 11, 10:31 AM CDT	Special Marine Warning	GRB		60 min
May 11, 11:28 AM CDT	Areal Flood Advisory	GRB	Oconto	2 hr

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.