Alert archive / Wisconsin / Tornado Warnings in 2011
Tornado Warning 8, NWS Green Bay, WI
NWS Green Bay, WI issued this tornado warning at Apr 10, 2011, 7:29 PM CDT for Outagamie County, Waupaca County, Wisconsin. It was in force for 46 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
- Apr 10, 2011, 7:29 PM CDT (00:29 UTC)
- Expired
- Apr 10, 2011, 8:15 PM CDT
- In force
- 46 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
Counties Outagamie County, WI, Waupaca County, WI
The radar
The Green Bay radar (KGRB), 44 km from the middle of the area, began a volume at 00:29 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, 7:34 PM CDT | TSTM WND DMG | 1 E Fremont, WI | LARGE BARN CORNER 20 BY 120 FT RIPPED OFF. |
| Apr 10, 7:35 PM CDT | FUNNEL CLOUD | 2 Nw Dale, 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 |
|---|---|---|---|
| Apr 10, 3:19 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 00:00Z, 0.5 hours before the alert went out and 44 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.
709 WFUS53 KGRB 110029 TORGRB WIC087-135-110115- /O.NEW.KGRB.TO.W.0008.110411T0029Z-110411T0115Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE GREEN BAY WI 729 PM CDT SUN APR 10 2011 THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A * TORNADO WARNING FOR... OUTAGAMIE COUNTY IN NORTHEAST WISCONSIN... SOUTHEASTERN WAUPACA COUNTY IN NORTHEAST WISCONSIN... * UNTIL 815 PM CDT * AT 724 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR FREMONT...OR 12 MILES SOUTHEAST OF WAUPACA...AND MOVING EAST AT 40 MPH. THIS TORNADO WARNING IS AN EXTENSION FOR SOUTHEAST WAUPACA COUNTY. * THIS DANGEROUS STORM WILL BE NEAR... NEW LONDON AROUND 735 PM CDT. BLACK CREEK AROUND 800 PM CDT. OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE DALE... MEDINA...HORTONVILLE...STEPHENSVILLE...GREENVILLE...BINGHAMTON... MACKVILLE...FREEDOM AND ONEIDA. 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 4424 8889 4438 8891 4459 8819 4425 8818 TIME...MOT...LOC 0029Z 249DEG 34KT 4427 8879 $$ KALLAS
4 follow-up statements
380 WWUS53 KGRB 110034 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 734 PM CDT SUN APR 10 2011 WIC087-135-110115- /O.CON.KGRB.TO.W.0008.000000T0000Z-110411T0115Z/ OUTAGAMIE WI-WAUPACA WI- 734 PM CDT SUN APR 10 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN WAUPACA AND OUTAGAMIE COUNTIES UNTIL 815 PM CDT... AT 729 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO. THIS TORNADO WAS LOCATED NEAR THE TOWN OF DALE AND...OR 15 MILES EAST OF WAUPACA...MOVING EAST AT 45 MPH. THE TORNADO WILL BE NEAR... BLACK CREEK AROUND 755 PM CDT. OTHER LOCATIONS IMPACTED BY THE TORNADO INCLUDE HORTONVILLE... STEPHENSVILLE...GREENVILLE...BINGHAMTON...MACKVILLE...FREEDOM AND ONEIDA. PRECAUTIONARY/PREPAREDNESS ACTIONS... TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. TO REPORT SEVERE WEATHER...CONTACT THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN GREEN BAY. && LAT...LON 4440 8884 4459 8819 4425 8819 4424 8881 TIME...MOT...LOC 0034Z 250DEG 38KT 4429 8870 $$ KALLAS
951 WWUS53 KGRB 110041 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 741 PM CDT SUN APR 10 2011 WIC135-110050- /O.CAN.KGRB.TO.W.0008.000000T0000Z-110411T0115Z/ WAUPACA WI- 741 PM CDT SUN APR 10 2011 ...THE TORNADO WARNING FOR SOUTHEASTERN WAUPACA COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 4443 8872 4459 8819 4425 8819 4424 8868 TIME...MOT...LOC 0040Z 246DEG 35KT 4432 8863 $$ WIC087-110115- /O.CON.KGRB.TO.W.0008.000000T0000Z-110411T0115Z/ OUTAGAMIE WI- 741 PM CDT SUN APR 10 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR OUTAGAMIE COUNTY UNTIL 815 PM CDT... AT 738 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 7 MILES SOUTHEAST OF NEW LONDON...OR 13 MILES WEST OF APPLETON...MOVING NORTHEAST AT 40 MPH. WEATHER SPOTTERS REPORT A ROTATING WALL CLOUD NEAR THE TOWN OF HORTONVILLE. THIS DANGEROUS STORM WILL BE NEAR... BLACK CREEK AROUND 800 PM CDT. OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE STEPHENSVILLE...GREENVILLE...SHIOCTON...MACKVILLE...BINGHAMTON... FREEDOM...SEYMOUR AND ONEIDA. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. TO REPORT SEVERE WEATHER...CONTACT THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN GREEN BAY. && LAT...LON 4443 8872 4459 8819 4425 8819 4424 8868 TIME...MOT...LOC 0040Z 246DEG 35KT 4432 8863 $$ KALLAS
481 WWUS53 KGRB 110055 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 755 PM CDT SUN APR 10 2011 WIC087-110115- /O.CON.KGRB.TO.W.0008.000000T0000Z-110411T0115Z/ OUTAGAMIE WI- 755 PM CDT SUN APR 10 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR OUTAGAMIE COUNTY UNTIL 815 PM CDT... AT 752 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 7 MILES SOUTH OF BLACK CREEK...OR 8 MILES NORTHWEST OF APPLETON...MOVING NORTHEAST AT 40 MPH. THIS DANGEROUS STORM WILL BE NEAR... BLACK CREEK AROUND 800 PM CDT. OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE FREEDOM... SEYMOUR AND ONEIDA. 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 4447 8860 4459 8819 4425 8819 4424 8850 TIME...MOT...LOC 0055Z 246DEG 35KT 4438 8844 $$ KALLAS
040 WWUS53 KGRB 110112 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 812 PM CDT SUN APR 10 2011 WIC087-110122- /O.EXP.KGRB.TO.W.0008.000000T0000Z-110411T0115Z/ OUTAGAMIE WI- 812 PM CDT SUN APR 10 2011 ...THE TORNADO WARNING FOR OUTAGAMIE COUNTY WILL EXPIRE AT 815 PM CDT... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. HOWEVER SMALL HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM. IN ADDITION...STRONG THUNDERSTORMS MAY REDEVELOP...AND A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM. LAT...LON 4447 8860 4459 8819 4425 8819 4424 8850 TIME...MOT...LOC 0112Z 246DEG 35KT 4445 8823 $$ KALLAS
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, 7:42 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, 8:29 PM CDT | Tornado Warning | GRB | Brown, Calumet, Outagamie, 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.