Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 101, NWS Green Bay, WI

October 25, 2012Marathon County, Portage County, Wood County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Oct 25, 2012, 12:27 AM CDT for Marathon County, Portage County, Wood County, Wisconsin. It was in force for 33 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: Oct 25, 2012, 12:27 AM CDT (05:27 UTC)
Expired: Oct 25, 2012, 1:00 AM CDT
In force: 33 min
Issued by: NWS Green Bay, WI
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Marathon County, WI, Portage County, WI, Wood County, WI

The radar

The Green Bay radar (KGRB), 143 km from the middle of the area, began a volume at 05:28 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

Time	Report	Where	Remark
Oct 25, 12:35 AM CDT	HAIL 0.5	Pittsville, WI
Oct 25, 1:05 AM CDT	HAIL 0.25	2 S Mosinee, WI

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 00:00Z, 5.5 hours before the alert went out and 144 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: 1631 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 658 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 142 m²/s²
0-3 km storm-relative helicity: 240 m²/s²
Significant tornado parameter: 1.5
Supercell composite: 11.0

Open this sounding in Storm Lab

The text

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

594 
WUUS53 KGRB 250527
SVRGRB
WIC073-097-141-250630-
/O.NEW.KGRB.SV.W.0101.121025T0527Z-121025T0630Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
1227 AM CDT THU OCT 25 2012

THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MARATHON COUNTY IN CENTRAL WISCONSIN...
  NORTHWESTERN PORTAGE COUNTY IN CENTRAL WISCONSIN...
  WOOD COUNTY IN CENTRAL WISCONSIN...

* UNTIL 130 AM CDT

* AT 1224 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  PITTSVILLE...OR 17 MILES NORTHWEST OF WISCONSIN RAPIDS...AND MOVING
  NORTHEAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MOSINEE AROUND 100 AM CDT.
  RIB MOUNTAIN AND WESTON AROUND 110 AM CDT.
  WAUSAU AROUND 115 AM CDT.

OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE
HEWITT...AUBURNDALE...SHERRY...BLENKER...ROZELLVILLE...BIG EAU PLEINE
COUNTY PARK...HALDER...MOON...PEPLIN AND EVERGREEN.

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.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4456 9032 4512 8970 4512 8923 4511 8922
      4425 9011 4436 9032
TIME...MOT...LOC 0527Z 223DEG 42KT 4454 9012
WIND...HAIL 60MPH 1.00IN

$$

KALLAS

2 follow-up statements

063 
WWUS53 KGRB 250539
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
1239 AM CDT THU OCT 25 2012

WIC073-097-141-250630-
/O.CON.KGRB.SV.W.0101.000000T0000Z-121025T0630Z/
MARATHON WI-PORTAGE WI-WOOD WI-
1239 AM CDT THU OCT 25 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
WOOD...NORTHWESTERN PORTAGE AND MARATHON COUNTIES UNTIL 130 AM CDT...

AT 1237 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
PITTSVILLE...OR 13 MILES NORTHWEST OF WISCONSIN RAPIDS...MOVING
NORTHEAST AT 45 MPH.

IN ADDITION...AT 1235 AM...ONE-HALF INCH SIZE HAIL WAS REPORTED IN 
THE TOWN OF PITTSVILLE WITH THIS STORM.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  MOSINEE AROUND 110 AM CDT.
  WESTON AROUND 125 AM CDT.

OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE
AUBURNDALE...BLENKER...SHERRY...MILLADORE...BIG EAU PLEINE COUNTY
PARK...DANCY...MOON...KNOWLTON...PEPLIN AND EVERGREEN.

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.

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 4463 9024 4512 8970 4512 8923 4510 8923
      4435 9002 4448 9019
TIME...MOT...LOC 0538Z 225DEG 41KT 4450 9006
WIND...HAIL 60MPH 1.00IN

$$

KALLAS

534 
WWUS53 KGRB 250600
SVSGRB

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
100 AM CDT THU OCT 25 2012

WIC073-097-141-250610-
/O.CAN.KGRB.SV.W.0101.000000T0000Z-121025T0630Z/
MARATHON WI-PORTAGE WI-WOOD WI-
100 AM CDT THU OCT 25 2012

...THE SEVERE THUNDERSTORM WARNING FOR WOOD...NORTHWESTERN PORTAGE
AND MARATHON COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
HOWEVER...HEAVY RAIN IS STILL LIKELY WITH THIS THUNDERSTORM.

LAT...LON 4463 9024 4512 8970 4512 8923 4510 8923
      4435 9002 4448 9019
TIME...MOT...LOC 0600Z 222DEG 57KT 4470 8970

$$

KALLAS

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 25, 7:51 AM CDT	Severe Thunderstorm Warning	GRB	Lincoln, Marathon	39 min
Oct 25, 8:26 AM CDT	Severe Thunderstorm Warning	GRB	Langlade, Lincoln, Oneida	30 min
Oct 25, 8:43 AM CDT	Severe Thunderstorm Warning	GRB	Langlade, Lincoln, Marathon	21 min
Oct 25, 8:45 AM CDT	Severe Thunderstorm Warning	GRB	Florence, Forest, Vilas	43 min
Oct 25, 9:03 AM CDT	Severe Thunderstorm Warning	GRB	Langlade	27 min
Oct 25, 9:21 AM CDT	Severe Thunderstorm Warning	GRB	Forest	24 min
Oct 25, 9:43 AM CDT	Severe Thunderstorm Warning	GRB	Florence, Forest, Marinette	18 min
Oct 25, 2:07 PM CDT	Severe Thunderstorm Warning	GRB	Marinette, Oconto	20 min
Oct 25, 2:22 PM CDT	Special Marine Warning	GRB		23 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.