Alert archive / Oklahoma / Tornado Warnings in 2011
Tornado Warning 65, NWS Norman, OK
NWS Norman, OK issued this tornado warning at May 24, 2011, 7:33 PM CDT for Johnston County, Oklahoma. It was in force for 42 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
- May 24, 2011, 7:33 PM CDT (00:33 UTC)
- Expired
- May 24, 2011, 8:15 PM CDT
- In force
- 42 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
County Johnston County, OK
The radar
The Norman radar (KTLX), 126 km from the middle of the area, began a volume at 00:33 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.
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 24, 12:47 PM CDT | Tornado Watch | SPC | 11 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 0.6 hours before the alert went out and 181 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
- 2867 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 1457 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 357 m²/s²
- 0-3 km storm-relative helicity
- 602 m²/s²
- Significant tornado parameter
- 6.2
- Supercell composite
- 44.3
The text
As transmitted, in the capitals the NWS used until 2016.
681
WFUS54 KOUN 250033
TOROUN
OKC069-250115-
/O.NEW.KOUN.TO.W.0065.110525T0033Z-110525T0115Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORMAN OK
733 PM CDT TUE MAY 24 2011
THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A
* TORNADO WARNING FOR...
JOHNSTON COUNTY IN SOUTHEAST OKLAHOMA...
* UNTIL 815 PM CDT
* AT 734 PM CDT...RADAR AND STORM SPOTTERS OBSERVED A TORNADO NEAR
RUSSETT...MOVING NORTHEAST AT 25 MPH.
* LOCATIONS IN THE WARNING INCLUDE BROMIDE...CONNERVILLE...
FILLMORE...MILBURN...RAVIA...REAGAN...RUSSETT AND TISHOMINGO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. LEAVE MOBILE HOMES AND VEHICLES. IF POSSIBLE...MOVE
TO A BASEMENT OR STORM SHELTER. OTHERWISE MOVE TO AN INTERIOR ROOM OR
HALLWAY ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS AND OUTSIDE
WALLS.
&&
LAT...LON 3418 9668 3418 9685 3429 9691 3452 9654
3452 9652 3450 9651 3443 9651 3443 9647
3431 9640 3429 9640
TIME...MOT...LOC 0034Z 240DEG 24KT 3424 9678
$$
CJS2 follow-up statements
053
WWUS54 KOUN 250041
SVSOUN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
741 PM CDT TUE MAY 24 2011
OKC069-250115-
/O.CON.KOUN.TO.W.0065.000000T0000Z-110525T0115Z/
JOHNSTON OK-
741 PM CDT TUE MAY 24 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR JOHNSTON
COUNTY...
AT 742 PM CDT...NATIONAL WEATHER SERVICE RADAR DETECTED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 3 MILES NORTHEAST OF
RAVIA...MOVING NORTHEAST AT 40 MPH.
* LOCATIONS IN THE WARNING INCLUDE BROMIDE...CONNERVILLE...
FILLMORE...MILBURN...RAVIA...REAGAN...RUSSETT AND TISHOMINGO.
LAT...LON 3418 9668 3418 9685 3429 9691 3452 9654
3452 9652 3450 9651 3443 9651 3443 9647
3431 9640 3429 9640
TIME...MOT...LOC 0042Z 247DEG 33KT 3428 9667
$$
CJS005
WWUS54 KOUN 250114
SVSOUN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
814 PM CDT TUE MAY 24 2011
OKC069-250124-
/O.EXP.KOUN.TO.W.0065.000000T0000Z-110525T0115Z/
JOHNSTON OK-
814 PM CDT TUE MAY 24 2011
...THE TORNADO WARNING FOR JOHNSTON COUNTY WILL EXPIRE AT 815 PM
CDT...
THE STORM HAS MOVED OUT OF THE AREA.
LAT...LON 3418 9668 3418 9685 3429 9691 3452 9654
3452 9652 3450 9651 3443 9651 3443 9647
3431 9640 3429 9640
TIME...MOT...LOC 0114Z 247DEG 33KT 3439 9634
$$The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 7:11 PM CDT | Severe Thunderstorm Warning | OUN | Love | 34 min |
| May 24, 7:13 PM CDT | Tornado Warning | OUN | Seminole | 17 min |
| May 24, 7:19 PM CDT | Severe Thunderstorm Warning | OUN | Coal, Johnston, Pontotoc | 41 min |
| May 24, 7:25 PM CDT | Severe Thunderstorm Warning | OUN | Carter, Marshall | 65 min |
| May 24, 7:29 PM CDT | Tornado Warning | OUN | Love, Marshall | 46 min |
| May 24, 7:39 PM CDT | Tornado Warning | OUN | Marshall | 51 min |
| May 24, 7:46 PM CDT | Tornado Warning | OUN | Coal | 44 min |
| May 24, 7:54 PM CDT | Tornado Warning | OUN | Atoka, Bryan, Johnston | 51 min |
| May 24, 7:58 PM CDT | Severe Thunderstorm Warning | OUN | Bryan | 62 min |
| May 24, 8:06 PM CDT | Tornado Warning | OUN | Atoka, Coal | 39 min |
| May 24, 8:20 PM CDT | Tornado Warning | OUN | Bryan | 55 min |
| May 24, 8:23 PM CDT | Severe Thunderstorm Warning | OUN | Atoka | 67 min |
| May 24, 8:29 PM CDT | Severe Thunderstorm Warning | OUN | Hughes, Pontotoc, Seminole | 61 min |
| May 24, 8:44 PM CDT | Severe Thunderstorm Warning | OUN | Atoka | 37 min |
| May 24, 9:00 PM CDT | Severe Thunderstorm Warning | OUN | Bryan | 60 min |
| May 24, 9:17 PM CDT | Tornado Warning | OUN | Bryan | 28 min |
| May 24, 9:32 PM CDT | Special Weather Statement | OUN | Hughes | 28 min |
| May 24, 9:48 PM CDT | Special Weather Statement | OUN | Hughes | 27 min |
| May 24, 10:05 PM CDT | Special Weather Statement | OUN | Bryan | 25 min |
| May 25, 1:49 AM CDT | Wind Advisory | OUN | Alfalfa, Beckham, Blaine, Custer, Dewey, Ellis and 10 more | 17 hr |
| May 25, 2:01 AM CDT | Special Weather Statement | OUN | Harper | 59 min |
| May 25, 3:09 AM CDT | Special Weather Statement | OUN | Ellis, Harper, Woods, Woodward | 51 min |
Nearby
Tornado Warnings in Oklahoma, 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.