Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 30, NWS Green Bay, WI

May 28, 2012Door County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at May 28, 2012, 6:02 PM CDT for Door County, Wisconsin. It was in force for 32 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 28, 2012, 6:02 PM CDT (23:02 UTC)
Expired: May 28, 2012, 6:34 PM CDT
In force: 32 min
Issued by: NWS Green Bay, WI
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Door County, WI

The radar

The Green Bay radar (KGRB), 109 km from the middle of the area, began a volume at 23:04 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 28, 12:54 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.0 hours before the alert went out and 110 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: 42 J/kg
Mixed-layer CIN: -178 J/kg
Mixed-layer LCL: 1757 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 133 m²/s²
0-3 km storm-relative helicity: 158 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.

264 
WUUS53 KGRB 282302
SVRGRB
WIC029-282345-
/O.NEW.KGRB.SV.W.0030.120528T2302Z-120528T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
602 PM CDT MON MAY 28 2012

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DOOR COUNTY IN NORTHEAST WISCONSIN...

* UNTIL 645 PM CDT

* AT 600 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 7 MILES NORTHEAST OF MARINETTE
  TO 7 MILES NORTH OF STURGEON BAY...AND MOVING NORTHEAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  EGG HARBOR...EPHRAIM...INSTITUTE...CARLSVILLE...VALMY...CHAMBERS
  ISLAND...WHITEFISH DUNES STATE PARK AND JACKSONPORT.

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 4530 8689 4532 8696 4528 8691 4518 8704
      4512 8699 4512 8700 4514 8702 4493 8716
      4480 8765 4490 8742 4511 8731 4509 8727
      4515 8726 4520 8738 4517 8719 4530 8708
      4532 8697 4542 8695 4544 8682
TIME...MOT...LOC 2302Z 240DEG 43KT 4515 8744 4495 8739
WIND...HAIL 60MPH 1.00IN

$$

TH

4 follow-up statements

353 
WWUS53 KGRB 282311
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
611 PM CDT MON MAY 28 2012

WIC029-282345-
/O.CON.KGRB.SV.W.0030.000000T0000Z-120528T2345Z/
DOOR WI-
611 PM CDT MON MAY 28 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR DOOR COUNTY
UNTIL 645 PM CDT...

AT 608 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 10 MILES WEST OF EPHRAIM TO EGG
HARBOR...MOVING NORTHEAST AT 50 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  EPHRAIM AROUND 620 PM CDT.

OTHER LOCATIONS IMPACTED BY SEVERE THUNDERSTORMS INCLUDE PENINSULA
STATE PARK...FISH CREEK...BAILEYS HARBOR...SISTER BAY...ELLISON
BAY...GILLS ROCK AND WASHINGTON ISLAND.

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 4530 8689 4532 8696 4528 8691 4518 8704
      4512 8699 4512 8700 4514 8702 4493 8716
      4480 8765 4490 8742 4511 8731 4509 8727
      4515 8726 4520 8738 4517 8719 4530 8708
      4532 8697 4542 8695 4544 8682
TIME...MOT...LOC 2310Z 240DEG 43KT 4520 8732 4500 8727
WIND...HAIL 60MPH 1.00IN

$$

TH

389 
WWUS53 KGRB 282314
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
614 PM CDT MON MAY 28 2012

WIC029-282345-
/O.CON.KGRB.SV.W.0030.000000T0000Z-120528T2345Z/
DOOR WI-
614 PM CDT MON MAY 28 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR DOOR COUNTY
UNTIL 645 PM CDT...

AT 613 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM 6 MILES NORTHWEST OF EGG HARBOR
TO 8 MILES SOUTHEAST OF EGG HARBOR...MOVING NORTHEAST AT 55 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  EPHRAIM AROUND 620 PM CDT.

OTHER LOCATIONS IMPACTED BY SEVERE THUNDERSTORMS INCLUDE PENINSULA
STATE PARK...FISH CREEK...BAILEYS HARBOR...SISTER BAY...ELLISON BAY
AND GILLS ROCK.

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 4530 8689 4532 8696 4528 8691 4518 8704
      4512 8699 4512 8700 4514 8702 4493 8716
      4493 8727 4499 8734 4511 8731 4509 8727
      4515 8726 4520 8738 4517 8719 4530 8708
      4532 8697 4542 8695 4544 8682
TIME...MOT...LOC 2314Z 243DEG 48KT 4513 8731 4497 8714
WIND...HAIL 60MPH 1.00IN

$$

TH

949 
WWUS53 KGRB 282327
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
627 PM CDT MON MAY 28 2012

WIC029-282345-
/O.CON.KGRB.SV.W.0030.000000T0000Z-120528T2345Z/
DOOR WI-
627 PM CDT MON MAY 28 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR DOOR COUNTY
UNTIL 645 PM CDT...

AT 626 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM EPHRAIM TO 13 MILES SOUTHEAST OF
EPHRAIM...MOVING NORTHEAST AT 55 MPH.

SEVERE THUNDERSTORMS WILL AFFECT MAINLY RURAL AREAS OF DOOR COUNTY...
INCLUDING THE FOLLOWING LOCATIONS GILLS ROCK.

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 4530 8689 4532 8696 4528 8691 4518 8704
      4512 8699 4512 8700 4514 8702 4513 8703
      4505 8708 4518 8719 4530 8708 4532 8697
      4542 8695 4544 8682
TIME...MOT...LOC 2327Z 243DEG 48KT 4521 8709 4505 8692
WIND...HAIL 60MPH 1.00IN

$$

TH

573 
WWUS53 KGRB 282334
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
634 PM CDT MON MAY 28 2012

WIC029-282344-
/O.CAN.KGRB.SV.W.0030.000000T0000Z-120528T2345Z/
DOOR WI-
634 PM CDT MON MAY 28 2012

...THE SEVERE THUNDERSTORM WARNING FOR DOOR COUNTY 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 ARE STILL POSSIBLE WITH THESE 
THUNDERSTORMS UNTIL THEY DEPART.

LAT...LON 4530 8689 4532 8696 4528 8691 4518 8704
      4512 8699 4512 8700 4514 8702 4513 8703
      4505 8708 4518 8719 4530 8708 4532 8697
      4542 8695 4544 8682
TIME...MOT...LOC 2334Z 243DEG 48KT 4525 8697 4509 8680

$$

TH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 2:37 PM CDT	Severe Thunderstorm Warning	GRB	Marinette, Menominee, Oconto	53 min
May 28, 3:10 PM CDT	Severe Thunderstorm Warning	GRB	Portage, Shawano, Waupaca	35 min
May 28, 3:42 PM CDT	Severe Thunderstorm Warning	GRB	Menominee, Oconto, Shawano	35 min
May 28, 3:45 PM CDT	Special Marine Warning	GRB		60 min
May 28, 4:16 PM CDT	Special Marine Warning	GRB		44 min
May 28, 4:32 PM CDT	Severe Thunderstorm Warning	GRB	Outagamie, Shawano, Waupaca	28 min
May 28, 4:39 PM CDT	Severe Thunderstorm Warning	GRB	Portage, Waupaca, Waushara, Winnebago	51 min
May 28, 4:43 PM CDT	Severe Thunderstorm Warning	GRB	Marinette	10 min
May 28, 5:24 PM CDT	Severe Thunderstorm Warning	GRB	Outagamie, Waupaca	21 min
May 28, 5:31 PM CDT	Special Marine Warning	GRB		59 min
May 28, 6:21 PM CDT	Severe Thunderstorm Warning	GRB	Manitowoc	26 min
May 28, 6:25 PM CDT	Special Marine Warning	GRB		95 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2012 Every severe thunderstorm warning in 2012

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.