Alert archive / Wisconsin / Tornado Warnings in 2012
Tornado Warning 6, NWS Green Bay, WI
NWS Green Bay, WI issued this tornado warning at Jun 18, 2012, 4:19 PM CDT for Marinette County, Oconto County, Wisconsin. It was in force for 26 min. 1 report 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
- Jun 18, 2012, 4:19 PM CDT (21:19 UTC)
- Expired
- Jun 18, 2012, 4:45 PM CDT
- In force
- 26 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
Counties Marinette County, WI, Oconto County, WI
The radar
The Green Bay radar (KGRB), 67 km from the middle of the area, began a volume at 21:21 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 |
|---|---|---|---|
| Jun 18, 4:28 PM CDT | HAIL 1.5 | Peshtigo, WI |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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, 9.3 hours before the alert went out and 69 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.
157
WFUS53 KGRB 182119
TORGRB
WIC075-083-182145-
/O.NEW.KGRB.TO.W.0006.120618T2119Z-120618T2145Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE GREEN BAY WI
419 PM CDT MON JUN 18 2012
THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHEASTERN MARINETTE COUNTY IN NORTHEAST WISCONSIN...
OCONTO COUNTY IN NORTHEAST WISCONSIN...
* UNTIL 445 PM CDT
* AT 418 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 POUND...OR 18 MILES
SOUTHWEST OF MARINETTE...AND MOVING EAST AT 40 MPH.
* THIS DANGEROUS STORM WILL BE NEAR...
MARINETTE AROUND 445 PM CDT.
OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE HARMONY AND
PESHTIGO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING THAT
WAS IN EFFECT FOR THE SAME AREA.
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 4507 8759 4508 8760 4499 8762 4497 8763
4496 8773 4495 8780 4493 8783 4493 8809
4513 8812 4519 8774 4511 8765 4510 8759
4507 8757
TIME...MOT...LOC 2119Z 262DEG 34KT 4499 8794
$$
SKOWRONSKI3 follow-up statements
716
WWUS53 KGRB 182126
SVSGRB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
426 PM CDT MON JUN 18 2012
WIC075-083-182145-
/O.CON.KGRB.TO.W.0006.000000T0000Z-120618T2145Z/
MARINETTE WI-OCONTO WI-
426 PM CDT MON JUN 18 2012
...A TORNADO WARNING REMAINS IN EFFECT FOR OCONTO AND SOUTHEASTERN
MARINETTE COUNTIES UNTIL 445 PM CDT...
AT 421 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 8 MILES NORTH OF OCONTO...OR 15 MILES SOUTHWEST OF
MARINETTE...MOVING EAST AT 40 MPH.
THIS DANGEROUS STORM WILL BE...
PESHTIGO AROUND 435 PM CDT
SOUTH OF MARINETTE AROUND 440 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4507 8759 4508 8760 4499 8762 4497 8763
4496 8773 4495 8780 4493 8783 4493 8798
4514 8791 4516 8771 4511 8765 4510 8759
4507 8757
TIME...MOT...LOC 2124Z 262DEG 34KT 4500 8784
$$
SKOWRONSKI935
WWUS53 KGRB 182137
SVSGRB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
437 PM CDT MON JUN 18 2012
WIC083-182144-
/O.CAN.KGRB.TO.W.0006.000000T0000Z-120618T2145Z/
OCONTO WI-
437 PM CDT MON JUN 18 2012
...THE TORNADO WARNING FOR OCONTO COUNTY IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 4507 8759 4508 8760 4497 8763 4497 8770
4496 8772 4498 8774 4500 8782 4509 8779
4510 8765 4510 8759 4507 8757
TIME...MOT...LOC 2134Z 262DEG 34KT 4501 8771
$$
WIC075-182145-
/O.CON.KGRB.TO.W.0006.000000T0000Z-120618T2145Z/
MARINETTE WI-
437 PM CDT MON JUN 18 2012
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN MARINETTE
COUNTY UNTIL 445 PM CDT...
AT 430 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS STORM WAS
LOCATED NEAR PESHTIGO...OR 9 MILES SOUTHWEST OF MARINETTE...MOVING
EAST AT 40 MPH.
LOCATIONS IMPACTED INCLUDE...
LOCATIONS JUST SOUTH OF MARINETTE.
THE STORM HAD WEAKENED SINCE IT PROMPTED THE ISSUANCE OF THE TORNADO
WARNING. HOWEVER...IT IS STILL POSSIBLE THAT THE STORM MAY
RE-STRENGTHEN...SO THE WARNING WILL BE ALLOWED TO CONTINUE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE IN THE PATH OF THE STORM...MOVE TO AN INTERIOR ROOM ON
THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE
HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL
SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4507 8759 4508 8760 4497 8763 4497 8770
4496 8772 4498 8774 4500 8782 4509 8779
4510 8765 4510 8759 4507 8757
TIME...MOT...LOC 2134Z 262DEG 34KT 4501 8771
$$
SKOWRONSKI520
WWUS53 KGRB 182142
SVSGRB
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREEN BAY WI
442 PM CDT MON JUN 18 2012
WIC075-182152-
/O.EXP.KGRB.TO.W.0006.000000T0000Z-120618T2145Z/
MARINETTE WI-
442 PM CDT MON JUN 18 2012
...THE TORNADO WARNING FOR SOUTHEASTERN MARINETTE COUNTY WILL EXPIRE
AT 445 PM CDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF
THE WARNED AREA.
LAT...LON 4507 8759 4508 8760 4497 8763 4497 8770
4496 8772 4498 8774 4500 8782 4509 8779
4510 8765 4510 8759 4507 8757
TIME...MOT...LOC 2142Z 262DEG 34KT 4502 8760
$$
SKOWRONSKIThe 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, 3:41 PM CDT | Tornado Warning | GRB | Langlade, Marathon, Menominee, Shawano | 34 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, 4:45 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.