Alert archive / Wisconsin / Tornado Warnings in 2011
Tornado Warning 3, NWS Green Bay, WI
NWS Green Bay, WI issued this tornado warning at Apr 10, 2011, 6:31 PM CDT for Waushara County, Wisconsin. It was in force for 29 min. 5 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, 6:31 PM CDT (23:31 UTC)
- Expired
- Apr 10, 2011, 7:00 PM CDT
- In force
- 29 min
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
County Waushara County, WI
The radar
The Green Bay radar (KGRB), 113 km from the middle of the area, began a volume at 23:32 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, 6:35 PM CDT | TORNADO | 5 Sw Hancock, WI | EF1 TORNADO THAT MOVED OUT OF ADAMS COUNTY /NWS ARX/. PATH LENGTH APPROX 9.3 MILES, PATH WIDTH TBD. |
| Apr 10, 6:53 PM CDT | HAIL 1.75 | Wild Rose, WI | ROTATING WALL CLOUD |
| Apr 10, 6:54 PM CDT | TSTM WND DMG | 7 Nw Wautoma, WI | 12 INCH DIAMETER TREES DOWN....POSSIBLE TORNADO |
| Apr 10, 7:00 PM CDT | TSTM WND DMG | 3 N Wautoma, WI | 100 YEAR OLD OAK TREE KNOCKED DOWN BY STRONG WINDS. |
| Apr 10, 7:00 PM CDT | TSTM WND DMG | 3 Nw Wautoma, WI | MANY TREES DOWN ALONG HIGHWAY 73...SOME BLOCKING THE ROAD. |
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 12:00Z, 11.5 hours before the alert went out and 113 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
- 56 J/kg
- Mixed-layer CIN
- -264 J/kg
- Mixed-layer LCL
- 799 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
493 WFUS53 KGRB 102331 TORGRB WIC137-110000- /O.NEW.KGRB.TO.W.0003.110410T2331Z-110411T0000Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE GREEN BAY WI 631 PM CDT SUN APR 10 2011 THE NATIONAL WEATHER SERVICE IN GREEN BAY HAS ISSUED A * TORNADO WARNING FOR... WESTERN WAUSHARA COUNTY IN CENTRAL WISCONSIN... * UNTIL 700 PM CDT * AT 627 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR FRIENDSHIP...AND MOVING EAST AT 50 MPH. * THIS DANGEROUS STORM WILL BE NEAR... PLAINFIELD AROUND 640 PM CDT. WAUTOMA AROUND 645 PM CDT. OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE COLOMA... HANCOCK AND WILD ROSE. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING THAT WAS IN EFFECT FOR THE SAME AREA. && LAT...LON 4424 8960 4425 8921 4398 8921 4398 8960 TIME...MOT...LOC 2331Z 251DEG 62KT 4406 8969 $$ KALLAS
2 follow-up statements
366 WWUS53 KGRB 102345 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 645 PM CDT SUN APR 10 2011 WIC137-110000- /O.CON.KGRB.TO.W.0003.000000T0000Z-110411T0000Z/ WAUSHARA WI- 645 PM CDT SUN APR 10 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR WESTERN WAUSHARA COUNTY UNTIL 700 PM CDT... AT 641 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 7 MILES SOUTH OF PLAINFIELD...OR 12 MILES WEST OF WAUTOMA...MOVING EAST AT 40 MPH. THIS DANGEROUS STORM WILL BE NEAR... WILD ROSE AROUND 655 PM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. TO REPORT SEVERE WEATHER...CONTACT THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN GREEN BAY. && LAT...LON 4424 8960 4425 8921 4398 8921 4398 8960 TIME...MOT...LOC 2345Z 256DEG 36KT 4412 8945 $$ KALLAS
378 WWUS53 KGRB 110001 SVSGRB SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE GREEN BAY WI 701 PM CDT SUN APR 10 2011 WIC137-110011- /O.EXP.KGRB.TO.W.0003.000000T0000Z-110411T0000Z/ WAUSHARA WI- 701 PM CDT SUN APR 10 2011 ...THE TORNADO WARNING FOR WESTERN WAUSHARA COUNTY HAS EXPIRED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO WATCH REMAINS IN EFFECT UNTIL 1100 PM! LAT...LON 4424 8960 4425 8921 4398 8921 4398 8960 TIME...MOT...LOC 2345Z 256DEG 36KT 4412 8945 $$ KALLAS
The office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 7:09 PM CDT | Marine Dense Fog Advisory | GRB | 15 hr | |
| Apr 9, 9:25 PM CDT | Dense Fog Advisory | GRB | Door, Kewaunee, Manitowoc | 6 hr |
| Apr 9, 11:36 PM CDT | Severe Thunderstorm Warning | GRB | Forest, Oneida, Vilas | 39 min |
| Apr 9, 11:58 PM CDT | Severe Thunderstorm Warning | GRB | Florence | 34 min |
| Apr 10, 3:13 AM CDT | Severe Thunderstorm Warning | GRB | Brown, Oconto, Outagamie, Shawano | 30 min |
| Apr 10, 3:20 AM CDT | Special Marine Warning | GRB | 34 min | |
| Apr 10, 3:41 AM CDT | Small Craft Advisory | GRB | 42 hr | |
| Apr 10, 10:13 AM CDT | Marine Dense Fog Advisory | GRB | 11 hr | |
| Apr 10, 10:20 AM CDT | River Flood Warning | GRB | Wood | 4 days |
| Apr 10, 10:36 AM CDT | River Flood Warning | GRB | Marathon | 47 hr |
| Apr 10, 1:28 PM CDT | River Flood Warning | GRB | Shawano, Waupaca | 4 days |
| Apr 10, 3:38 PM CDT | River Flood Warning | GRB | Marathon | 65 hr |
| Apr 10, 4:10 PM CDT | River Flood Warning | GRB | Lincoln, Marathon | 64 hr |
| Apr 10, 4:17 PM CDT | River Flood Warning | GRB | Wood | 41 hr |
| Apr 10, 4:26 PM CDT | Severe Thunderstorm Warning | GRB | Kewaunee | 19 min |
| Apr 10, 4:28 PM CDT | Special Marine Warning | GRB | 45 min | |
| Apr 10, 5:31 PM CDT | Tornado Warning | GRB | Lincoln, Marathon | 44 min |
| Apr 10, 6:04 PM CDT | Severe Thunderstorm Warning | GRB | Portage, Waushara, Wood | 56 min |
| Apr 10, 6:14 PM CDT | Tornado Warning | GRB | Langlade, Lincoln, Marathon, Shawano | 46 min |
| Apr 10, 6:40 PM CDT | Tornado Warning | GRB | Langlade, Lincoln | 50 min |
| Apr 10, 6:58 PM CDT | Tornado Warning | GRB | Waupaca, Waushara, Winnebago | 32 min |
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.