Alert archive / Wisconsin / Tornado Warnings in 2012
Tornado Warning 5, NWS Green Bay, WI
NWS Green Bay, WI issued this tornado warning at Jun 18, 2012, 3:41 PM CDT for 4 counties in Wisconsin. It was in force for 34 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
- Jun 18, 2012, 3:41 PM CDT (20:41 UTC)
- Expired
- Jun 18, 2012, 4:15 PM CDT
- In force
- 34 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
Counties Langlade County, WI, Marathon County, WI, Menominee County, WI, Shawano County, WI
The radar
The Green Bay radar (KGRB), 93 km from the middle of the area, began a volume at 20:44 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 |
|---|---|---|---|
| Jun 18, 12:24 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 8.7 hours before the alert went out and 95 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.
- Mixed-layer CAPE
- 67 J/kg
- Mixed-layer CIN
- -387 J/kg
- Mixed-layer LCL
- 1455 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 382 m²/s²
- 0-3 km storm-relative helicity
- 524 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
497 WFUS53 KGRB 182041 TORGRB WIC067-073-078-115-182115- /O.NEW.KGRB.TO.W.0005.120618T2041Z-120618T2115Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE GREEN BAY WI 341 PM CDT MON JUN 18 2012 THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A * TORNADO WARNING FOR... SOUTH CENTRAL LANGLADE COUNTY IN NORTH CENTRAL WISCONSIN... NORTHEASTERN MARATHON COUNTY IN CENTRAL WISCONSIN...NORTHWESTERN MENOMINEE COUNTY IN NORTHEAST WISCONSIN...NORHWEST SHAWANO COUNTY IN NORTHEAST WISCONSIN... * UNTIL 415 PM CDT * AT 335 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 11 MILES SOUTHWEST OF ANTIGO...AND MOVING EAST AT 50 MPH. MAINLY RURAL AREAS OF NORTHEASTERN MARATHON...NORTHWESTERN MENOMINEE...SHAWANO AND SOUTH CENTRAL LANGLADE COUNTIES...INCLUDING THE FOLLOWING LOCATIONS MATTOON AND PHLOX. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4512 8883 4492 8876 4492 8930 4511 8935 TIME...MOT...LOC 2040Z 259DEG 44KT 4503 8920 $$ EB
2 follow-up statements
049 WWUS53 KGRB 182051 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 351 PM CDT MON JUN 18 2012 WIC073-182100- /O.CAN.KGRB.TO.W.0005.000000T0000Z-120618T2115Z/ MARATHON WI- 351 PM CDT MON JUN 18 2012 ...THE TORNADO WARNING FOR NORTHEASTERN MARATHON COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 4511 8920 4512 8883 4492 8876 4492 8915 TIME...MOT...LOC 2050Z 259DEG 44KT 4505 8903 $$ WIC067-078-115-182115- /O.CON.KGRB.TO.W.0005.000000T0000Z-120618T2115Z/ LANGLADE WI-MENOMINEE WI-SHAWANO WI- 351 PM CDT MON JUN 18 2012 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHWEST SHAWANO...NORTHWESTERN MENOMINEE AND SOUTH CENTRAL LANGLADE COUNTIES UNTIL 415 PM CDT... AT 348 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 8 MILES SOUTHEAST OF ANTIGO...MOVING EAST AT 50 MPH. THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF NORTHWESTERN MENOMINEE...SHAWANO AND SOUTH CENTRAL LANGLADE COUNTIES...INCLUDING THE TOWNS OF FLOZ AND MATTOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4511 8920 4512 8883 4492 8876 4492 8915 TIME...MOT...LOC 2050Z 259DEG 44KT 4505 8903 $$ EB
854 WWUS53 KGRB 182109 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 409 PM CDT MON JUN 18 2012 WIC067-078-115-182118- /O.EXP.KGRB.TO.W.0005.000000T0000Z-120618T2115Z/ LANGLADE WI-MENOMINEE WI-SHAWANO WI- 409 PM CDT MON JUN 18 2012 ...THE TORNADO WARNING FOR NORTHWEST SHAWANO...NORTHWESTERN MENOMINEE AND SOUTH CENTRAL LANGLADE COUNTIES WILL EXPIRE AT 415 PM CDT... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND NO LONGER POSES AN IMMEDIATE TORNADO THREAT. THE TORNADO WARNING WAS REPLACED WITH A SEVERE THUNDERSTORM WARNING FOR PARTS OF SHAWANO...MENOMINEE AND LANGLADE COUNTIES. LAT...LON 4511 8920 4512 8883 4492 8876 4492 8915 TIME...MOT...LOC 2108Z 259DEG 44KT 4509 8872 $$ EB
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 4:03 AM CDT | Special Marine Warning | GRB | 87 min | |
| Jun 18, 1:34 PM CDT | Severe Thunderstorm Warning | GRB | Langlade, Lincoln, Oneida | 56 min |
| Jun 18, 2:14 PM CDT | Severe Thunderstorm Warning | GRB | Lincoln, Marathon | 46 min |
| Jun 18, 2:28 PM CDT | Severe Thunderstorm Warning | GRB | Forest, Langlade, Lincoln, Oconto | 47 min |
| Jun 18, 2:58 PM CDT | Severe Thunderstorm Warning | GRB | Marathon | 47 min |
| Jun 18, 3:22 PM CDT | Tornado Warning | GRB | Marathon | 23 min |
| Jun 18, 3:28 PM CDT | Severe Thunderstorm Warning | GRB | Menominee, Portage, Shawano, Waupaca | 47 min |
| Jun 18, 3:44 PM CDT | Severe Thunderstorm Warning | GRB | Marinette | 31 min |
| Jun 18, 3:47 PM CDT | Special Marine Warning | GRB | 88 min | |
| Jun 18, 3:48 PM CDT | Severe Thunderstorm Warning | GRB | Marathon, Shawano | 42 min |
| Jun 18, 3:55 PM CDT | Severe Thunderstorm Warning | GRB | Outagamie, Portage, Shawano, Waupaca | 41 min |
| Jun 18, 3:58 PM CDT | Severe Thunderstorm Warning | GRB | Marinette, Oconto | 47 min |
| Jun 18, 4:07 PM CDT | Severe Thunderstorm Warning | GRB | Langlade, Menominee, Shawano | 20 min |
| Jun 18, 4:19 PM CDT | Tornado Warning | GRB | Marinette, Oconto | 26 min |
| Jun 18, 4:45 PM CDT | Special Marine Warning | GRB | 90 min | |
| Jun 18, 4:51 PM CDT | Severe Thunderstorm Warning | GRB | Calumet, Winnebago | 39 min |
| Jun 18, 5:12 PM CDT | Special Marine Warning | GRB | 75 min | |
| Jun 18, 5:30 PM CDT | Severe Thunderstorm Warning | GRB | Brown, Calumet, Manitowoc, Outagamie, Winnebago | 45 min |
| Jun 18, 5:31 PM CDT | Special Marine Warning | GRB | 89 min | |
| Jun 18, 6:08 PM CDT | Severe Thunderstorm Warning | GRB | Calumet, Manitowoc, Winnebago | 37 min |
Nearby
Tornado Warnings in Wisconsin, 2012Every tornado warning in 2012Tornadoes 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.