Alert archive / Oklahoma / Tornado Warnings in 2011
Tornado Warning 19, NWS Norman, OK
NWS Norman, OK issued this tornado warning at Apr 14, 2011, 8:46 PM CDT for Atoka County, Coal County, Oklahoma. It was in force for 39 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 14, 2011, 8:46 PM CDT (01:46 UTC)
- Expired
- Apr 14, 2011, 9:25 PM CDT
- In force
- 39 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
Counties Atoka County, OK, Coal County, OK
The radar
The Norman radar (KTLX), 158 km from the middle of the area, began a volume at 01:46 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 14, 2:28 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 1.8 hours before the alert went out and 161 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 4948 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 20 m²/s²
- 0-3 km storm-relative helicity
- 146 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
572
WFUS54 KOUN 150146
TOROUN
OKC005-029-150300-
/O.NEW.KOUN.TO.W.0019.110415T0146Z-110415T0300Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORMAN OK
846 PM CDT THU APR 14 2011
THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A
* TORNADO WARNING FOR...
NORTHERN ATOKA COUNTY IN SOUTHEAST OKLAHOMA...
SOUTHEASTERN COAL COUNTY IN SOUTHEAST OKLAHOMA...
* UNTIL 1000 PM CDT
* AT 846 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 10 MILES SOUTHWEST OF
LEHIGH...MOVING EAST AT 35 MPH.
* LOCATIONS IN THE WARNING INCLUDE ATOKA RESERVOIR...ATOKA...
CHOCKIE...DAISY...LEHIGH...MCGEE CREEK LAKE...REDDEN AND
STRINGTOWN.
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.
TORNADOES ARE ESPECIALLY DANGEROUS AT NIGHT BECAUSE THEY ARE HARD TO
SEE. TAKE COVER NOW. IF A BASEMENT IS NOT AVAILABLE...MOVE TO AN
INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR. LEAVE MOBILE HOMES AND
VEHICLES FOR REINFORCED SHELTER. STAY AWAY FROM WINDOWS.
&&
LAT...LON 3450 9567 3450 9578 3434 9578 3433 9640
3443 9640 3463 9591 3464 9588 3460 9587
3460 9568 3459 9567 3451 9566
TIME...MOT...LOC 0146Z 258DEG 32KT 3439 9633
$$4 follow-up statements
234
WWUS54 KOUN 150157
SVSOUN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
857 PM CDT THU APR 14 2011
OKC005-029-150300-
/O.CON.KOUN.TO.W.0019.000000T0000Z-110415T0300Z/
COAL OK-ATOKA OK-
857 PM CDT THU APR 14 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR NORTHERN
ATOKA AND SOUTHEASTERN COAL COUNTIES...
AT 855 PM CDT...NATIONAL WEATHER SERVICE RADAR DETECTED
THUNDERSTORMS CAPABLE OF PRODUCING TORNADOES. ONE STORM WAS JUST
WEST OF ATOKA AND THE OTHER WAS NEAR DAISY...BOTH WERE MOVING EAST
AT 35 MPH.
PERSONS NEAR ATOKA AND LEHIGH...UP TOWARD STRINGTOWN...REDDEN...AND
ESPECIALLY DAISY...NEED TO TAKE COVER NOW!
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TORNADOES ARE ESPECIALLY DANGEROUS AT NIGHT BECAUSE THEY ARE HARD TO
SEE. TAKE COVER NOW. IF A BASEMENT IS NOT AVAILABLE...MOVE TO AN
INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR. LEAVE MOBILE HOMES AND
VEHICLES FOR REINFORCED SHELTER. STAY AWAY FROM WINDOWS.
&&
LAT...LON 3450 9567 3450 9578 3434 9578 3433 9640
3443 9640 3463 9591 3464 9588 3460 9587
3460 9568 3459 9567 3451 9566
TIME...MOT...LOC 0155Z 258DEG 32KT 3455 9573 3440 9621
$$443
WWUS54 KOUN 150208
SVSOUN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
908 PM CDT THU APR 14 2011
OKC029-150218-
/O.CAN.KOUN.TO.W.0019.000000T0000Z-110415T0300Z/
COAL OK-
908 PM CDT THU APR 14 2011
...THE TORNADO WARNING HAS BEEN CANCELLED FOR SOUTHEASTERN COAL
COUNTY...
LAT...LON 3450 9567 3450 9578 3434 9578 3434 9614
3451 9613 3451 9610 3453 9609 3463 9591
3464 9588 3460 9587 3460 9568 3459 9567
TIME...MOT...LOC 0208Z 258DEG 32KT 3457 9559 3445 9598
$$
OKC005-150300-
/O.CON.KOUN.TO.W.0019.000000T0000Z-110415T0300Z/
ATOKA OK-
908 PM CDT THU APR 14 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
NORTHEASTERN ATOKA COUNTY...
AT 908 PM CDT...NATIONAL WEATHER SERVICE RADAR DETECTED A LINE OF
THUNDERSTORMS CAPABLE OF PRODUCING A TORNADO ALONG A LINE EXTENDING
FROM 8 MILES EAST OF DAISY TO 3 MILES SOUTHEAST OF STRINGTOWN...
MOVING EAST AT 35 MPH.
* LOCATIONS IN THE WARNING INCLUDE ATOKA RESERVOIR...ATOKA...
CHOCKIE...DAISY...MCGEE CREEK LAKE...REDDEN AND STRINGTOWN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. LEAVE MOBILE HOMES AND VEHICLES. IF POSSIBLE...MOVE
TO A BASEMENT OR STORM SHELTER. OTHERWISE MOVE TO AN INTERIOR ROOM OR
HALLWAY ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS AND OUTSIDE
WALLS.
THIS IS AN EXTREMELY DANGEROUS AND LIFE THREATENING SITUATION. IF YOU
ARE IN THE PATH OF THIS LARGE AND DESTRUCTIVE TORNADO... TAKE COVER
IMMEDIATELY. A BASEMENT OR STORM SHELTER IS BEST. OTHERWISE...TAKE
COVER IN AN INTERIOR CLOSET OR BATHROOM AWAY FROM OUTSIDE WALLS AND
WINDOWS. COVER YOUR HEAD WITH PILLOWS AND BLANKETS.
&&
LAT...LON 3450 9567 3450 9578 3434 9578 3434 9614
3451 9613 3451 9610 3453 9609 3463 9591
3464 9588 3460 9587 3460 9568 3459 9567
TIME...MOT...LOC 0208Z 258DEG 32KT 3457 9559 3445 9598
$$834
WWUS54 KOUN 150214
SVSOUN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
914 PM CDT THU APR 14 2011
OKC005-150300-
/O.CON.KOUN.TO.W.0019.000000T0000Z-110415T0300Z/
ATOKA OK-
914 PM CDT THU APR 14 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
NORTHEASTERN ATOKA COUNTY...
AT 914 PM CDT...NATIONAL WEATHER SERVICE RADAR DETECTED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR STRINGTOWN...MOVING
EAST AT 40 MPH.
* LOCATIONS IN THE WARNING INCLUDE ATOKA RESERVOIR...CHOCKIE...
DAISY...NORTHERN MCGEE CREEK LAKE...REDDEN AND STRINGTOWN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TORNADOES ARE ESPECIALLY DANGEROUS AT NIGHT BECAUSE THEY ARE HARD TO
SEE. TAKE COVER NOW. IF A BASEMENT IS NOT AVAILABLE...MOVE TO AN
INTERIOR ROOM OR HALLWAY ON THE LOWEST FLOOR. LEAVE MOBILE HOMES AND
VEHICLES FOR REINFORCED SHELTER. STAY AWAY FROM WINDOWS.
HEAVY RAINS MAY QUICKLY FLOOD LOW LYING AREAS SUCH AS CREEKS...
DITCHES AND UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED
ROADS AS AUTOMOBILES CAN QUICKLY STALL.
&&
LAT...LON 3450 9567 3450 9578 3434 9578 3442 9612
3451 9613 3451 9610 3453 9609 3463 9591
3464 9588 3460 9587 3460 9568 3459 9567
TIME...MOT...LOC 0214Z 252DEG 37KT 3448 9598
$$948
WWUS54 KOUN 150225
SVSOUN
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
925 PM CDT THU APR 14 2011
OKC005-150234-
/O.CAN.KOUN.TO.W.0019.000000T0000Z-110415T0300Z/
ATOKA OK-
925 PM CDT THU APR 14 2011
...THE TORNADO WARNING HAS BEEN CANCELLED FOR NORTHEASTERN ATOKA
COUNTY...
THE STORM HAS WEAKENED AND TORNADOES ARE NOT EXPECTED.
HOWEVER...VERY HEAVY RAIN AND HAIL WILL STILL REMAIN POSSIBLE ACROSS
NORTHEASTERN ATOKA COUNTY.
LAT...LON 3450 9567 3450 9578 3434 9578 3442 9612
3451 9613 3451 9610 3453 9609 3463 9591
3464 9588 3460 9587 3460 9568 3459 9567
TIME...MOT...LOC 0224Z 252DEG 37KT 3452 9589
$$The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 7:13 PM CDT | Tornado Warning | OUN | Hughes | 32 min |
| Apr 14, 7:28 PM CDT | Tornado Warning | OUN | Johnston, Murray, Pontotoc | 47 min |
| Apr 14, 7:53 PM CDT | Special Weather Statement | OUN | Lincoln | 22 min |
| Apr 14, 7:54 PM CDT | Tornado Warning | OUN | Coal, Johnston, Pontotoc | 36 min |
| Apr 14, 7:58 PM CDT | Tornado Warning | OUN | Atoka, Coal | 32 min |
| Apr 14, 7:59 PM CDT | Severe Thunderstorm Warning | OUN | Lincoln, Payne | 22 min |
| Apr 14, 8:17 PM CDT | Tornado Warning | OUN | Atoka, Coal | 58 min |
| Apr 14, 8:17 PM CDT | Tornado Warning | OUN | Atoka, Johnston | 28 min |
| Apr 14, 8:34 PM CDT | Tornado Warning | OUN | Atoka, Coal, Johnston | 41 min |
| Apr 14, 8:37 PM CDT | Special Weather Statement | OUN | Murray | 23 min |
| Apr 14, 8:39 PM CDT | Special Weather Statement | OUN | Coal, Hughes | 21 min |
| Apr 14, 8:53 PM CDT | Areal Flood Advisory | OUN | Atoka, Coal, Hughes, Murray, Pontotoc | 3 hr |
| Apr 14, 8:59 PM CDT | Special Weather Statement | OUN | Coal, Hughes, Johnston, Marshall | 31 min |
| Apr 14, 9:07 PM CDT | Severe Thunderstorm Warning | OUN | Atoka, Bryan, Carter, Coal, Hughes, Johnston and 3 more | 53 min |
| Apr 14, 9:46 PM CDT | High Wind Warning | OUN | Alfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 21 more | 24 hr |
| Apr 14, 9:55 PM CDT | Severe Thunderstorm Warning | OUN | Atoka, Bryan, Coal, Marshall | 53 min |
| Apr 15, 4:12 AM CDT | Red Flag Warning | OUN | Beckham, Caddo, Comanche, Cotton, Custer, Greer and 8 more | 17 hr |
| Apr 15, 5:35 PM CDT | Freeze Warning | OUN | Alfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 24 more | 11 hr |
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.