Alert archive / Oklahoma / Tornado Warnings in 2011
Tornado Warning 63, NWS Norman, OK
NWS Norman, OK issued this tornado warning at May 24, 2011, 7:13 PM CDT for Seminole County, Oklahoma. It was in force for 17 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, 7:13 PM CDT (00:13 UTC)
- Expired
- May 24, 2011, 7:30 PM CDT
- In force
- 17 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
County Seminole County, OK
The radar
The Norman radar (KTLX), 64 km from the middle of the area, began a volume at 00:13 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, 0.2 hours before the alert went out and 293 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.
258
WFUS54 KOUN 250013
TOROUN
OKC133-250030-
/O.NEW.KOUN.TO.W.0063.110525T0013Z-110525T0030Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORMAN OK
713 PM CDT TUE MAY 24 2011
THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A
* TORNADO WARNING FOR...
NORTHEASTERN SEMINOLE COUNTY IN EAST CENTRAL OKLAHOMA...
* UNTIL 730 PM CDT
* AT 713 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR LITTLE...MOVING
NORTHEAST AT 40 MPH.
* LOCATIONS IN THE WARNING INCLUDE LITTLE.
THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 197 AND 209.
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 3529 9662 3540 9675 3541 9669 3539 9665
3541 9659 3540 9655 3544 9657 3546 9655
3544 9650 3546 9647 3546 9643
TIME...MOT...LOC 0013Z 218DEG 35KT 3538 9666
$$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, 7:19 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, 7:33 PM CDT | Tornado Warning | OUN | Johnston | 42 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.