Alert archive / Kansas / Tornado Warnings in 2011
Tornado Warning 2, NWS Topeka, KS
NWS Topeka, KS issued this tornado warning at Apr 8, 2011, 9:54 PM CDT for Morris County, Kansas. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 8, 2011, 9:54 PM CDT (02:54 UTC)
- Expired
- Apr 8, 2011, 10:20 PM CDT
- In force
- 26 min
- Issued by
- NWS Topeka, KS
- Area
- Storm-based polygon
County Morris County, KS
The radar
The Topeka radar (KTWX), 53 km from the middle of the area, began a volume at 02:54 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.
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 8, 9:01 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 2.9 hours before the alert went out and 94 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
- 1028 J/kg
- Mixed-layer CIN
- -353 J/kg
- Mixed-layer LCL
- 980 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 354 m²/s²
- 0-3 km storm-relative helicity
- 409 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
132 WFUS53 KTOP 090254 TORTOP KSC127-090330- /O.NEW.KTOP.TO.W.0002.110409T0254Z-110409T0330Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TOPEKA KS 954 PM CDT FRI APR 8 2011 THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A * TORNADO WARNING FOR... SOUTHEASTERN MORRIS COUNTY IN EAST CENTRAL KANSAS... * UNTIL 1030 PM CDT * AT 949 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM WITH STRONG ROTATION CAPABLE OF PRODUCING A TORNADO. THIS SEVERE STORM WAS LOCATED 12 MILES SOUTH OF WILSEY... OR 16 MILES SOUTHWEST OF COUNCIL GROVE...MOVING NORTHEAST AT 20 MPH. * LOCATIONS IMPACTED INCLUDE... WILSEY... COUNCIL GROVE... PRECAUTIONARY/PREPAREDNESS ACTIONS... TORNADOS ARE DIFFICULT TO SEE AT NIGHT. TAKE COVER NOW! IF YOU WAIT TO SEE OR HEAR IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE. STAY TUNED TO WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE LATEST SEVERE WEATHER INFORMATION. && LAT...LON 3868 9669 3867 9636 3851 9648 3851 9677 TIME...MOT...LOC 0254Z 212DEG 18KT 3848 9663 HAIL 2.00IN $$ BLAIR
1 follow-up statement
198 WWUS53 KTOP 090320 SVSTOP SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TOPEKA KS 1020 PM CDT FRI APR 8 2011 KSC127-090330- /O.CAN.KTOP.TO.W.0002.000000T0000Z-110409T0330Z/ MORRIS- 1020 PM CDT FRI APR 8 2011 ...THE TORNADO WARNING FOR SOUTHEASTERN MORRIS COUNTY HAS BEEN CANCELLED... AT 1020 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE SEVERE THUNDERSTORM WITH THE POSSIBLE TORNADO HAD WEAKENED AND NO LONGER APPEARED CAPABLE OF PRODUCING TORNADOES OR OTHER SEVERE WEATHER...THUS THE WARNING HAS BEEN CANCELLED. PRECAUTIONARY/PREPAREDNESS ACTIONS... RADAR INDICATED THAT HAIL UP TO GOLFBALL SIZE WAS STILL POSSIBLE. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT. STAY ALERT TO THE WEATHER. STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE LATEST SEVERE WEATHER INFORMATION. && LAT...LON 3868 9669 3867 9636 3851 9648 3851 9677 TIME...MOT...LOC 0320Z 212DEG 18KT 3859 9654 $$ BLAIR
The office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 8:40 PM CDT | Special Weather Statement | TOP | Lyon | 35 min |
| Apr 8, 8:45 PM CDT | Special Weather Statement | TOP | Coffey | 15 min |
| Apr 8, 8:55 PM CDT | Severe Thunderstorm Warning | TOP | Anderson, Coffey, Franklin | 50 min |
| Apr 8, 9:00 PM CDT | Severe Thunderstorm Warning | TOP | Morris | 45 min |
| Apr 8, 9:43 PM CDT | Severe Thunderstorm Warning | TOP | Geary, Morris, Wabaunsee | 47 min |
| Apr 8, 10:13 PM CDT | Special Weather Statement | TOP | Wabaunsee | 32 min |
| Apr 8, 10:28 PM CDT | Severe Thunderstorm Warning | TOP | Morris | 31 min |
| Apr 8, 10:49 PM CDT | Severe Thunderstorm Warning | TOP | Jefferson | 18 min |
| Apr 9, 4:49 AM CDT | Fire Weather Watch | TOP | Anderson, Brown, Clay, Cloud, Coffey, Dickinson and 17 more | 22 hr |
| Apr 9, 5:42 AM CDT | Dense Fog Advisory | TOP | Brown, Clay, Cloud, Jackson, Marshall, Nemaha and 4 more | 3 hr |
| Apr 9, 2:48 PM CDT | Red Flag Warning | TOP | Anderson, Brown, Clay, Cloud, Coffey, Dickinson and 17 more | 29 hr |
Nearby
Tornado Warnings in Kansas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.