Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 97, NWS Green Bay, WI
NWS Green Bay, WI issued this severe thunderstorm warning at Sep 4, 2012, 6:26 PM CDT for Marathon County, Wood County, Wisconsin. It was in force for 36 min. 6 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
- Sep 4, 2012, 6:26 PM CDT (23:26 UTC)
- Expired
- Sep 4, 2012, 7:02 PM CDT
- In force
- 36 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Marathon County, WI, Wood County, WI
The radar
The La Crosse radar (KARX), 133 km from the middle of the area, began a volume at 23:28 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 |
|---|---|---|---|
| Sep 4, 6:30 PM CDT | TSTM WND GST 60 | Spencer, WI | WINDS SUSTAINED NEAR 40 MPH GUST TO 60 MPH. |
| Sep 4, 6:32 PM CDT | TSTM WND GST 51 | Marshfield, WI | AT AIRPORT. |
| Sep 4, 6:32 PM CDT | NON-TSTM WND GST 51 | Marshfield, WI | AT AIRPORT. |
| Sep 4, 6:45 PM CDT | TSTM WND DMG | 2 W Marshfield, WI | A FEW TREES BLOWN DOWN...UP TO 8 INCHES IN DIAMETER. REPORTED BY WSAW-TV. |
| Sep 4, 6:45 PM CDT | TSTM WND GST 54 | Marshfield, WI | AT AIRPORT. |
| Sep 4, 6:50 PM CDT | TSTM WND DMG | Stratford, WI | GLASS WINDOW BLOWN IN AT GAS STATION. ALSO POWER LINES DOWN SOUTH OF STRATFORD. |
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 |
|---|---|---|---|
| Sep 4, 3:27 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.4 hours before the alert went out and 163 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
- 1547 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 496 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
629 WUUS53 KGRB 042326 SVRGRB WIC073-141-050015- /O.NEW.KGRB.SV.W.0097.120904T2326Z-120905T0015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREEN BAY WI 626 PM CDT TUE SEP 4 2012 THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN MARATHON COUNTY IN CENTRAL WISCONSIN... NORTHERN WOOD COUNTY IN CENTRAL WISCONSIN... * UNTIL 715 PM CDT * AT 621 PM 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 5 MILES WEST OF SPENCER...OR 25 MILES SOUTH OF MEDFORD...AND MOVING EAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... MARSHFIELD AROUND 645 PM CDT. OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE STRATFORD...ROZELLVILLE...AUBURNDALE...BLENKER AND BIG EAU PLEINE COUNTY PARK. 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 4495 9032 4491 8984 4444 8985 4448 9031 TIME...MOT...LOC 2326Z 283DEG 28KT 4477 9033 WIND...HAIL 60MPH 1.00IN $$ EB
3 follow-up statements
328 WWUS53 KGRB 042336 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 636 PM CDT TUE SEP 4 2012 WIC073-141-050015- /O.CON.KGRB.SV.W.0097.000000T0000Z-120905T0015Z/ MARATHON WI-WOOD WI- 636 PM CDT TUE SEP 4 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN WOOD AND SOUTHWESTERN MARATHON COUNTIES UNTIL 715 PM CDT... AT 633 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM ABBOTSFORD TO 12 MILES NORTHWEST OF PITTSVILLE...MOVING EAST AT 35 MPH. SEVERE THUNDERSTORMS WILL BE NEAR... NASONVILLE BY 640 PM CDT. MARSHFIELD AND STRATFORD AROUND 645 PM CDT. SPENCER FIRE DEPARTMENT REPORTED ESTIMATED GUSTS TO 60 MPH IN SPENCER. OTHER LOCATIONS IMPACTED BY SEVERE THUNDERSTORMS INCLUDE BAKERVILLE...MARCH RAPIDS...NORTH WOOD COUNTY PARK...STRATFORD... HEWITT...POWERS BLUFF COUNTY PARK...ROZELLVILLE...FENWOOD...BETHEL AND EDGAR. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...AND DEADLY LIGHTNING. FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. && LAT...LON 4495 9032 4491 8984 4444 8985 4448 9031 TIME...MOT...LOC 2333Z 283DEG 28KT 4496 9024 4451 9031 WIND...HAIL 60MPH 1.00IN $$ EB
357 WWUS53 KGRB 042355 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 655 PM CDT TUE SEP 4 2012 WIC073-141-050015- /O.CON.KGRB.SV.W.0097.000000T0000Z-120905T0015Z/ MARATHON WI-WOOD WI- 655 PM CDT TUE SEP 4 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN WOOD AND WEST CENTRAL MARATHON COUNTIES UNTIL 715 PM CDT... AT 651 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 15 MILES EAST OF ABBOTSFORD TO PITTSVILLE...MOVING EAST AT 30 MPH. SEVERE THUNDERSTORMS WILL AFFECT THE FOLLOWING LOCATIONS... AUBURNDALE...ARPIN...VESPER...SHERRY...HALDER...BLENKER...BIG EAU PLEINE COUNTY PARK AND MILLADORE. A 54 MPH WIND GUST WAS MEASURED AT THE MARSHFIELD AIRPORT AT 645 PM CDT. 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 4494 9017 4491 8984 4444 8985 4448 9031 TIME...MOT...LOC 2354Z 283DEG 28KT 4492 8998 4447 9009 WIND...HAIL 60MPH 1.00IN $$ EB
528 WWUS53 KGRB 050002 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 702 PM CDT TUE SEP 4 2012 WIC073-141-050010- /O.CAN.KGRB.SV.W.0097.000000T0000Z-120905T0015Z/ MARATHON WI-WOOD WI- 702 PM CDT TUE SEP 4 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHWEST WOOD AND WEST CENTRAL MARATHON COUNTIES IS CANCELLED... THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED EAST OF THE WARNED AREA AND HAS BEEN REPLACED BY ANOTHER SEVERE THUNDERSTORM WARNING FOR PARTS OF WOOD...PORTAGE AND MARATHON COUNTIES. TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN GREEN BAY. LAT...LON 4494 9017 4491 8984 4444 8985 4448 9031 TIME...MOT...LOC 0000Z 283DEG 28KT 4491 8991 4446 9003 $$ KALLAS
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 3, 8:45 PM CDT | Special Marine Warning | GRB | 31 min | |
| Sep 4, 6:59 PM CDT | Severe Thunderstorm Warning | GRB | Marathon, Portage, Wood | 46 min |
Nearby
Severe Thunderstorm Warnings in Wisconsin, 2012Every 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.