Alert archive / Kansas / Tornado Warnings in 2011
Tornado Warning 15, NWS Topeka, KS
NWS Topeka, KS issued this tornado warning at May 21, 2011, 9:34 PM CDT for Jefferson County, Kansas. It was in force for 56 min. 3 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
- May 21, 2011, 9:34 PM CDT (02:34 UTC)
- Expired
- May 21, 2011, 10:30 PM CDT
- In force
- 56 min
- Issued by
- NWS Topeka, KS
- Area
- Storm-based polygon
County Jefferson County, KS
The radar
The Topeka radar (KTWX), 82 km from the middle of the area, began a volume at 02:33 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 |
|---|---|---|---|
| May 21, 9:38 PM CDT | HAIL 1 | 2 Ese Ozawkie, KS | |
| May 21, 9:43 PM CDT | TSTM WND DMG | 3 N Oskaloosa, KS | 4 FOOT TREE UPROOTED AND DAMAGED PROPANE TANK |
| May 21, 9:55 PM CDT | FUNNEL CLOUD | 3 Ne Oskaloosa, KS | AT US 59 ANAD FAIRVIEW RD |
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 |
|---|---|---|---|
| May 21, 3:41 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 2.6 hours before the alert went out and 246 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
- 1436 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 1205 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 5.0
The text
As transmitted, in the capitals the NWS used until 2016.
904
WFUS53 KTOP 220234
TORTOP
KSC087-220330-
/O.NEW.KTOP.TO.W.0015.110522T0234Z-110522T0330Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
934 PM CDT SAT MAY 21 2011
THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A
* TORNADO WARNING FOR...
JEFFERSON COUNTY IN NORTHEAST KANSAS...
* UNTIL 1030 PM CDT
* AT 929 PM CDT...RADAR INDICATED A TORNADO. THIS STORM WAS LOCATED
NEAR PERRY LAKE...OR 8 MILES WEST OF OSKALOOSA...MOVING NORTHEAST AT
35 MPH.
* LOCATIONS IMPACTED INCLUDE...
OSKALOOSA...
MCLOUTH...
WINCHESTER...
PERRY LAKE...
OZAWKIE...
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.
LARGE DESTRUCTIVE HAIL IS ALSO LIKELY ALONG AND NORTH OF THE EXPECTED
TORNADO TRACK.
STAY TUNED TO WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE LATEST
SEVERE WEATHER INFORMATION.
&&
LAT...LON 3912 9548 3923 9556 3942 9518 3942 9517
3919 9518
TIME...MOT...LOC 0234Z 243DEG 29KT 3921 9541
HAIL 2.50IN
$$
ANGLE3 follow-up statements
988
WWUS53 KTOP 220247
SVSTOP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
947 PM CDT SAT MAY 21 2011
KSC087-220330-
/O.CON.KTOP.TO.W.0015.000000T0000Z-110522T0330Z/
JEFFERSON-
947 PM CDT SAT MAY 21 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR
NORTHEASTERN JEFFERSON COUNTY...
AT 943 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM WITH STRONG ROTATION CAPABLE OF
PRODUCING A TORNADO. THIS STORM WAS LOCATED NEAR OSKALOOSA...MOVING
NORTHEAST AT 35 MPH.
LOCATIONS IMPACTED INCLUDE...
WINCHESTER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
LARGE DESTRUCTIVE HAIL IS ALSO LIKELY ALONG AND NORTH OF THE EXPECTED
TORNADO TRACK.
STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE
LATEST SEVERE WEATHER INFORMATION.
&&
LAT...LON 3917 9532 3930 9542 3942 9518 3942 9517
3919 9518
TIME...MOT...LOC 0247Z 243DEG 29KT 3926 9529
HAIL 1.75IN
$$
ANGLE788
WWUS53 KTOP 220258
SVSTOP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
958 PM CDT SAT MAY 21 2011
KSC087-220330-
/O.CON.KTOP.TO.W.0015.000000T0000Z-110522T0330Z/
JEFFERSON-
958 PM CDT SAT MAY 21 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT FOR
NORTHEASTERN JEFFERSON COUNTY...
AT 952 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM WITH STRONG ROTATION CAPABLE OF
PRODUCING A TORNADO. THIS STORM WAS LOCATED 4 MILES SOUTHEAST OF
WINCHESTER...OR 6 MILES NORTHEAST OF OSKALOOSA...MOVING NORTHEAST AT
35 MPH.
EMERGENCY MANAGEMENT REPORTED A FUNNEL CLOUD WITH THIS STORM.
LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OF EAST CENTRAL JEFFERSON COUNTY...
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 NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE
LATEST SEVERE WEATHER INFORMATION.
&&
LAT...LON 3917 9532 3930 9542 3942 9518 3942 9517
3919 9518
TIME...MOT...LOC 0257Z 243DEG 29KT 3929 9519
HAIL <.75IN
$$
HARDING148
WWUS53 KTOP 220306
SVSTOP
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
1006 PM CDT SAT MAY 21 2011
KSC087-220316-
/O.CAN.KTOP.TO.W.0015.000000T0000Z-110522T0330Z/
JEFFERSON-
1006 PM CDT SAT MAY 21 2011
...THE TORNADO WARNING FOR NORTHEASTERN JEFFERSON COUNTY HAS BEEN
CANCELLED...
AT 1006 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED THAT THE
SEVERE THUNDERSTORM WITH THE POSSIBLE TORNADO HAD EXITED THE AREA...
THUS THE WARNING HAS BEEN CANCELLED.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE
LATEST SEVERE WEATHER INFORMATION.
&&
LAT...LON 3917 9532 3930 9542 3942 9518 3942 9517
3919 9518
TIME...MOT...LOC 0306Z 243DEG 29KT 3930 9509
$$
HARDINGThe office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 7:01 PM CDT | Severe Thunderstorm Warning | TOP | Pottawatomie, Wabaunsee | 14 min |
| May 21, 7:26 PM CDT | Severe Thunderstorm Warning | TOP | Jackson, Jefferson | 34 min |
| May 21, 7:28 PM CDT | Severe Thunderstorm Warning | TOP | Jackson, Jefferson | 32 min |
| May 21, 7:35 PM CDT | Severe Thunderstorm Warning | TOP | Jackson, Shawnee | 25 min |
| May 21, 7:41 PM CDT | Tornado Warning | TOP | Jefferson | 49 min |
| May 21, 7:56 PM CDT | Severe Thunderstorm Warning | TOP | Brown, Jackson, Jefferson | 49 min |
| May 21, 8:03 PM CDT | Special Weather Statement | TOP | Lyon | 42 min |
| May 21, 8:20 PM CDT | Severe Thunderstorm Warning | TOP | Lyon, Morris | 55 min |
| May 21, 8:22 PM CDT | River Flood Warning | TOP | Ottawa, Saline | 30 hr |
| May 21, 8:30 PM CDT | Severe Thunderstorm Warning | TOP | Jackson, Jefferson | 45 min |
| May 21, 8:34 PM CDT | Special Weather Statement | TOP | Shawnee | 56 min |
| May 21, 8:41 PM CDT | Severe Thunderstorm Warning | TOP | Jackson, Jefferson, Shawnee | 33 min |
| May 21, 8:52 PM CDT | Tornado Warning | TOP | Lyon | 39 min |
| May 21, 9:08 PM CDT | Tornado Warning | TOP | Osage | 52 min |
| May 21, 9:13 PM CDT | Severe Thunderstorm Warning | TOP | Jefferson | 47 min |
| May 21, 9:23 PM CDT | Tornado Warning | TOP | Osage | 52 min |
| May 21, 9:43 PM CDT | Severe Thunderstorm Warning | TOP | Lyon | 32 min |
| May 21, 9:55 PM CDT | Tornado Warning | TOP | Douglas, Franklin | 65 min |
| May 21, 10:12 PM CDT | Tornado Warning | TOP | Osage | 48 min |
| May 21, 10:55 PM CDT | Severe Thunderstorm Warning | TOP | Coffey, Franklin, Osage | 35 min |
| May 21, 10:57 PM CDT | Tornado Warning | TOP | Douglas, Franklin | 63 min |
| May 21, 11:13 PM CDT | Tornado Warning | TOP | Coffey, Franklin, Osage | 47 min |
| May 21, 11:58 PM CDT | Severe Thunderstorm Warning | TOP | Franklin | 33 min |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.