Alert archive / Wisconsin / Tornado Warnings in 2011
Tornado Warning 12, NWS Green Bay, WI
NWS Green Bay, WI issued this tornado warning at Apr 10, 2011, 8:29 PM CDT for 4 counties in Wisconsin. It was in force for 31 min. 7 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
- Apr 10, 2011, 8:29 PM CDT (01:29 UTC)
- Expired
- Apr 10, 2011, 9:00 PM CDT
- In force
- 31 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
Counties Brown County, WI, Calumet County, WI, Outagamie County, WI, Winnebago County, WI
The radar
The Green Bay radar (KGRB), 26 km from the middle of the area, began a volume at 01:29 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 |
|---|---|---|---|
| Apr 10, 8:30 PM CDT | TSTM WND DMG | Menasha, WI | LARGE TREES DOWN |
| Apr 10, 8:30 PM CDT | TSTM WND DMG | Neenah, WI | ROOF DAMAGE AT MOTORMART GAS STATION. POWER LINES DOWN. |
| Apr 10, 8:43 PM CDT | TSTM WND DMG | Kaukauna, WI | GARAGE DAMAGED...ROOFS DAMAGED...CAR MOVED AND TREES DOWN FROM THE MIDDLE TO SOUTH SIDE OF KAUKAUNA |
| Apr 10, 8:44 PM CDT | TORNADO | Kaukauna, WI | EF1 TORNADO THAT HIT THE SOUTHWEST AND SOUTH SIDE OF KAUKAUNA. PATH LENGTH APPROX 2 MILES, PATH WIDTH 125 YARDS. OVER 150 HOMES SUSTAINED AT LEAST MINOR DAMAGE |
| Apr 10, 8:46 PM CDT | TSTM WND GST 60 | 2 N Darboy, WI | |
| Apr 10, 8:48 PM CDT | TSTM WND DMG | 2 N Holland, WI | BUILDING DAMAGED ON COUNTY HWY D |
| Apr 10, 9:10 PM CDT | TSTM WND DMG | Wrightstown, WI | ROOF TORN OFF BUILDING |
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 |
|---|---|---|---|
| Apr 10, 3:19 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 1.5 hours before the alert went out and 25 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
- 1647 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 1073 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- 399 m²/s²
- 0-3 km storm-relative helicity
- 397 m²/s²
- Significant tornado parameter
- 4.2
- Supercell composite
- 11.4
The text
As transmitted, in the capitals the NWS used until 2016.
492 WFUS53 KGRB 110129 RRA TORGRB WIC009-015-087-139-110200- /O.NEW.KGRB.TO.W.0012.110411T0129Z-110411T0200Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE GREEN BAY WI 829 PM CDT SUN APR 10 2011 THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A * TORNADO WARNING FOR... SOUTHWESTERN BROWN COUNTY IN NORTHEAST WISCONSIN... NORTHERN CALUMET COUNTY IN EAST CENTRAL WISCONSIN... SOUTHEASTERN OUTAGAMIE COUNTY IN NORTHEAST WISCONSIN... NORTHEASTERN WINNEBAGO COUNTY IN EAST CENTRAL WISCONSIN... * UNTIL 900 PM CDT * AT 824 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 6 MILES SOUTHWEST OF APPLETON...AND MOVING NORTHEAST AT 45 MPH. * THIS DANGEROUS STORM WILL BE NEAR... APPLETON AND KAUKAUNA AROUND 840 PM CDT. OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE COMBINED LOCKS...LITTLE CHUTE...KIMBERLY...DUNDAS...HOLLAND...ASKEATON... WRIGHTSTOWN AND GREENLEAF. PRECAUTIONARY/PREPAREDNESS ACTIONS... HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW. 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 4444 8808 4426 8798 4408 8855 4425 8867 TIME...MOT...LOC 0128Z 245DEG 41KT 4422 8844 $$ KIECKBUSCH
3 follow-up statements
681 WWUS53 KGRB 110142 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 842 PM CDT SUN APR 10 2011 WIC139-110151- /O.CAN.KGRB.TO.W.0012.000000T0000Z-110411T0200Z/ WINNEBAGO WI- 842 PM CDT SUN APR 10 2011 ...THE TORNADO WARNING FOR NORTHEASTERN WINNEBAGO COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 4431 8840 4444 8808 4426 8798 4413 8840 TIME...MOT...LOC 0141Z 251DEG 35KT 4425 8832 $$ WIC009-015-087-110200- /O.CON.KGRB.TO.W.0012.000000T0000Z-110411T0200Z/ BROWN WI-OUTAGAMIE WI-CALUMET WI- 842 PM CDT SUN APR 10 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN CALUMET... SOUTHEASTERN OUTAGAMIE AND SOUTHWESTERN BROWN COUNTIES UNTIL 900 PM CDT... AT 838 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 2 MILES SOUTHEAST OF APPLETON...MOVING EAST AT 40 MPH. THIS DANGEROUS STORM WILL AFFECT AREAS OF NORTHERN CALUMET...SOUTHEASTERN OUTAGAMIE AND SOUTHWESTERN BROWN COUNTIES...INCLUDING THE FOLLOWING LOCATIONS...KAUKAUNA... KIMBERLY...DUNDAS...HOLLAND...GREENLEAF...WRIGHTSTOWN AND ASKEATON. PRECAUTIONARY/PREPAREDNESS ACTIONS... HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW. && LAT...LON 4431 8840 4444 8808 4426 8798 4413 8840 TIME...MOT...LOC 0141Z 251DEG 35KT 4425 8832 $$ KIECKBUSCH
961 WWUS53 KGRB 110152 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 852 PM CDT SUN APR 10 2011 WIC009-015-087-110200- /O.CON.KGRB.TO.W.0012.000000T0000Z-110411T0200Z/ BROWN WI-OUTAGAMIE WI-CALUMET WI- 852 PM CDT SUN APR 10 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN CALUMET... SOUTHEASTERN OUTAGAMIE AND SOUTHWESTERN BROWN COUNTIES UNTIL 900 PM CDT... AT 847 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 2 NORTHWEST OF HOLLAND...OR 12 MILES EAST OF APPLETON...MOVING EAST AT 50 MPH. THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF NORTHERN CALUMET...SOUTHEASTERN OUTAGAMIE AND SOUTHWESTERN BROWN COUNTIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. TO REPORT SEVERE WEATHER...CONTACT THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN GREEN BAY. && LAT...LON 4431 8840 4444 8808 4426 8798 4413 8840 TIME...MOT...LOC 0151Z 255DEG 55KT 4428 8808 $$ KIECKBUSCH
511 WWUS53 KGRB 110202 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 902 PM CDT SUN APR 10 2011 WIC009-015-087-110211- /O.EXP.KGRB.TO.W.0012.000000T0000Z-110411T0200Z/ BROWN WI-OUTAGAMIE WI-CALUMET WI- 902 PM CDT SUN APR 10 2011 ...THE TORNADO WARNING FOR NORTHERN CALUMET AND SOUTHEASTERN OUTAGAMIE COUNTIES HAS BEEN CANCELLED. THE TORNADO WARNING FOR SOUTHERN BROWN COUNTY HAS BEEN REISSUED... PLEASE REFER TO THAT BULLETIN FOR THE LATEST SEVERE WEATHER INFORMATION. A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHERN BROWN COUNTY UNTIL 930 PM. LAT...LON 4431 8840 4444 8808 4426 8798 4413 8840 TIME...MOT...LOC 0152Z 255DEG 55KT 4428 8806 $$ KIECKBUSCH
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 7:11 PM CDT | Severe Thunderstorm Warning | GRB | Waushara | 34 min |
| Apr 10, 7:15 PM CDT | Tornado Warning | GRB | Forest, Langlade, Oneida | 30 min |
| Apr 10, 7:27 PM CDT | Tornado Warning | GRB | Waushara | 33 min |
| Apr 10, 7:29 PM CDT | Tornado Warning | GRB | Outagamie, Waupaca | 46 min |
| Apr 10, 7:42 PM CDT | Tornado Warning | GRB | Florence, Forest, Marinette | 48 min |
| Apr 10, 7:56 PM CDT | Tornado Warning | GRB | Outagamie, Waupaca, Waushara, Winnebago | 34 min |
| Apr 10, 8:10 PM CDT | Areal Flood Advisory | GRB | Calumet, Outagamie, Winnebago | 117 min |
| Apr 10, 8:29 PM CDT | Tornado Warning | GRB | Winnebago | 31 min |
| Apr 10, 8:56 PM CDT | Tornado Warning | GRB | Calumet, Winnebago | 34 min |
| Apr 10, 9:00 PM CDT | Tornado Warning | GRB | Brown | 30 min |
| Apr 10, 9:02 PM CDT | Special Marine Warning | GRB | 106 min | |
| Apr 10, 9:16 PM CDT | Tornado Warning | GRB | Manitowoc | 29 min |
| Apr 10, 9:19 PM CDT | Severe Thunderstorm Warning | GRB | Kewaunee | 26 min |
| Apr 10, 9:34 PM CDT | Tornado Warning | GRB | Manitowoc | 26 min |
| Apr 10, 9:46 PM CDT | River Flood Warning | GRB | Marathon, Portage | 4 days |
| Apr 10, 9:46 PM CDT | River Flood Warning | GRB | Portage, Wood | 63 hr |
| Apr 10, 10:13 PM CDT | River Flood Warning | GRB | Outagamie | 24 days |
| Apr 10, 10:13 PM CDT | River Flood Warning | GRB | Outagamie, Waupaca | 12 days |
| Apr 10, 10:13 PM CDT | River Flood Warning | GRB | Waupaca | 60 hr |
| Apr 11, 10:14 AM CDT | River Flood Warning | GRB | Marathon | 46 hr |
| Apr 11, 11:46 AM CDT | River Flood Warning | GRB | Lincoln | 45 hr |
Nearby
Tornado Warnings in Wisconsin, 2011Every tornado warning in 2011Tornadoes in 2011
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.