Alert archive / Wisconsin / Tornado Warnings in 2011
Tornado Warning 7, NWS Green Bay, WI
NWS Green Bay, WI issued this tornado warning at Apr 10, 2011, 7:27 PM CDT for Waushara County, Wisconsin. It was in force for 33 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, 7:27 PM CDT (00:27 UTC)
- Expired
- Apr 10, 2011, 8:00 PM CDT
- In force
- 33 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
County Waushara County, WI
The radar
The Green Bay radar (KGRB), 92 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, 7:35 PM CDT | HAIL 1.75 | Wautoma, WI | |
| Apr 10, 7:37 PM CDT | TSTM WND DMG | 4 N Wautoma, WI | LARGE TREES DOWN |
| Apr 10, 7:40 PM CDT | HAIL 0.75 | 2 E Wild Rose, WI | 60 MPH WIND ALSO |
| Apr 10, 7:50 PM CDT | HAIL 1.75 | 2 E Wild Rose, WI | |
| Apr 10, 7:53 PM CDT | TORNADO | Poy Sippi, WI | EF1 TORNADO THAT MOVED FROM POY SIPPI AREA OVER LAKE POYGAN THEN INTO WINNEBAGO COUNTY AT BOOM BAY. PATH LENGTH APPROX 14.8 MILES, PATH WIDTH 100 YARDS. |
| Apr 10, 7:54 PM CDT | HAIL 1 | Pine River, WI | |
| Apr 10, 7:55 PM CDT | TSTM WND DMG | Poy Sippi, WI | BUILDINGS DAMAGED IN POY SIPPI |
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 92 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.
581 WFUS53 KGRB 110027 TORGRB WIC137-110100- /O.NEW.KGRB.TO.W.0007.110411T0027Z-110411T0100Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE GREEN BAY WI 727 PM CDT SUN APR 10 2011 THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A * TORNADO WARNING FOR... WAUSHARA COUNTY IN CENTRAL WISCONSIN... * UNTIL 800 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 9 MILES WEST OF WAUTOMA...AND MOVING EAST AT 50 MPH. * THIS DANGEROUS STORM WILL BE NEAR... WAUTOMA AROUND 735 PM CDT. OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE SILVER LAKE...WILD ROSE...MOUNT MORRIS...PINE RIVER...SAXEVILLE...POY SIPPI...WEST BLOOMFIELD AND TUSTIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING THAT WAS IN EFFECT FOR THE SAME AREA. 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 4423 8889 4400 8889 4398 8952 4418 8954 TIME...MOT...LOC 0027Z 255DEG 45KT 4409 8941 $$ KIECKBUSCH
6 follow-up statements
096 WWUS53 KGRB 110032 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 732 PM CDT SUN APR 10 2011 WIC137-110100- /O.CON.KGRB.TO.W.0007.000000T0000Z-110411T0100Z/ WAUSHARA WI- 732 PM CDT SUN APR 10 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR WAUSHARA COUNTY UNTIL 800 PM CDT... AT 729 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 6 MILES NORTHWEST OF WAUTOMA...MOVING EAST AT 40 MPH. THIS DANGEROUS STORM WILL AFFECT THE FOLLOWING LOCATIONS...WILD ROSE...MOUNT MORRIS...SAXEVILLE...PINE RIVER...POY SIPPI...WEST BLOOMFIELD AND TUSTIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... TO REPORT SEVERE WEATHER...CONTACT THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN GREEN BAY. && LAT...LON 4423 8889 4400 8889 4398 8952 4418 8954 TIME...MOT...LOC 0031Z 256DEG 36KT 4410 8935 $$ KIECKBUSCH
275 WWUS53 KGRB 110037 RRA SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 737 PM CDT SUN APR 10 2011 WIC137-110100- /O.CON.KGRB.TO.W.0007.000000T0000Z-110411T0100Z/ WAUSHARA WI- 737 PM CDT SUN APR 10 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR WAUSHARA COUNTY UNTIL 800 PM CDT... AT 733 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 3 MILES NORTHWEST OF WAUTOMA...MOVING EAST AT 50 MPH. THIS STORM MAY ALSO PRODUCE VERY LARGE HAIL. THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF WAUSHARA COUNTY...INCLUDING THE FOLLOWING LOCATIONS...WILD ROSE...MOUNT MORRIS...PINE RIVER...SAXEVILLE...POY SIPPI...WEST BLOOMFIELD... TUSTIN AND BORTH. 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 4423 8889 4400 8889 4398 8952 4418 8954 TIME...MOT...LOC 0036Z 259DEG 44KT 4411 8926 $$ KIECKBUSCH
215 WWUS53 KGRB 110040 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 740 PM CDT SUN APR 10 2011 WIC137-110100- /O.CON.KGRB.TO.W.0007.000000T0000Z-110411T0100Z/ WAUSHARA WI- 740 PM CDT SUN APR 10 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR WAUSHARA COUNTY UNTIL 800 PM CDT... AT 738 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 3 MILES NORTHEAST OF WAUTOMA...MOVING EAST AT 50 MPH. THIS STORM WAS ALSO LIKELY PRODUCING VERY LARGE HAIL. THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF WAUSHARA COUNTY...INCLUDING THE FOLLOWING LOCATIONS...MOUNT MORRIS...PINE RIVER...SAXEVILLE...POY SIPPI...WEST BLOOMFIELD...BORTH AND TUSTIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. TO REPORT SEVERE WEATHER...CONTACT THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN GREEN BAY. && LAT...LON 4423 8889 4400 8889 4398 8952 4418 8954 TIME...MOT...LOC 0040Z 259DEG 44KT 4412 8919 $$ KIECKBUSCH
790 WWUS53 KGRB 110045 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 745 PM CDT SUN APR 10 2011 WIC137-110100- /O.CON.KGRB.TO.W.0007.000000T0000Z-110411T0100Z/ WAUSHARA WI- 745 PM CDT SUN APR 10 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR WAUSHARA COUNTY UNTIL 800 PM CDT... AT 742 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO AND BASEBALL SIZE HAIL. THIS DANGEROUS STORM WAS LOCATED 7 MILES NORTHWEST OF REDGRANITE...OR 8 MILES NORTHEAST OF WAUTOMA...MOVING EAST AT 50 MPH. THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF WAUSHARA COUNTY...INCLUDING THE FOLLOWING LOCATIONS POY SIPPI...WEST BLOOMFIELD...BORTH AND TUSTIN. 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 4423 8889 4400 8889 4398 8952 4418 8954 TIME...MOT...LOC 0045Z 259DEG 44KT 4413 8911 $$ KIECKBUSCH
109 WWUS53 KGRB 110049 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 749 PM CDT SUN APR 10 2011 WIC137-110100- /O.CON.KGRB.TO.W.0007.000000T0000Z-110411T0100Z/ WAUSHARA WI- 749 PM CDT SUN APR 10 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR WAUSHARA COUNTY UNTIL 800 PM CDT... AT 747 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO AND BASEBALL SIZE HAIL. THIS DANGEROUS STORM WAS LOCATED 7 MILES NORTH OF REDGRANITE...OR 11 MILES NORTHEAST OF WAUTOMA...MOVING EAST AT 50 MPH. THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF WAUSHARA COUNTY...INCLUDING THE FOLLOWING LOCATIONS...POYSIPPI...WEST BLOOMFIELD...BORTH AND TUSTIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. TO REPORT SEVERE WEATHER...CONTACT THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN GREEN BAY. && LAT...LON 4423 8889 4400 8889 4398 8952 4418 8954 TIME...MOT...LOC 0049Z 259DEG 44KT 4414 8904 $$ KIECKBUSCH
574 WWUS53 KGRB 110102 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 802 PM CDT SUN APR 10 2011 WIC137-110111- /O.EXP.KGRB.TO.W.0007.000000T0000Z-110411T0100Z/ WAUSHARA WI- 802 PM CDT SUN APR 10 2011 ...THE TORNADO WARNING FOR WAUSHARA COUNTY HAS BEEN REPLACED WITH ANOTHER TORNADO WARNING FOR THE EASTERN PART OF THE COUNTY... THE STORM WHICH PROMPTED THE TORNADO WARNING HAS MOVED INTO EASTERN WAUSHARA COUNTY. A NEW TORNADO WARNING HAS BEEN ISSUED FOR EASTERN WAUSHARA COUNTY...BUT THE THREAT HAS ENDED IN THE WESTERN PART OF WAUSHARA COUNTY. LAT...LON 4423 8889 4400 8889 4398 8952 4418 8954 TIME...MOT...LOC 0049Z 259DEG 44KT 4414 8904 $$ 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, 7:29 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, 8:29 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.