Alert archive / Oklahoma / Tornado Watches in 2005
Tornado Watch 274
The Storm Prediction Center issued this tornado watch at May 13, 2005, 6:45 PM CDT for 26 counties in Oklahoma; 10 counties in Texas. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- May 13, 2005, 6:45 PM CDT (23:45 UTC)
- Expired
- May 14, 2005, 2:00 AM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
All 36 counties
Blaine County, OK, Caddo County, OK, Canadian County, OK, Cleveland County, OK, Comanche County, OK, Cotton County, OK, Creek County, OK, Custer County, OK, Dewey County, OK, Garvin County, OK, Grady County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Jefferson County, OK, Kingfisher County, OK, Kiowa County, OK, Lincoln County, OK, Logan County, OK, McClain County, OK, Oklahoma County, OK, Payne County, OK, Pottawatomie County, OK, Stephens County, OK, Tillman County, OK, Washita County, OK, Archer County, TX, Baylor County, TX, Clay County, TX, Foard County, TX, Hardeman County, TX, King County, TX, Knox County, TX, Montague County, TX, Wichita County, TX, Wilbarger County, TX
The radar
The Altus AFB radar (KFDR), 21 km from the middle of the area, began a volume at 23:46 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.
Warnings issued inside it
29 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 13, 6:47 PM CDT | Severe Thunderstorm Warning | OUN | Garfield, Logan, Noble | 43 min |
| May 13, 7:03 PM CDT | Severe Thunderstorm Warning | OUN | Kiowa | 42 min |
| May 13, 7:10 PM CDT | Severe Thunderstorm Warning | OUN | Jackson | 50 min |
| May 13, 7:11 PM CDT | Severe Thunderstorm Warning | OUN | Custer, Washita | 49 min |
| May 13, 7:13 PM CDT | Severe Thunderstorm Warning | OUN | Knox | 47 min |
| May 13, 7:15 PM CDT | Tornado Warning | OUN | Knox | 30 min |
| May 13, 7:17 PM CDT | Severe Thunderstorm Warning | OUN | Baylor | 43 min |
| May 13, 7:22 PM CDT | Severe Thunderstorm Warning | OUN | Blaine, Kingfisher | 53 min |
| May 13, 7:33 PM CDT | Severe Thunderstorm Warning | OUN | Logan, Noble, Payne | 57 min |
| May 13, 7:34 PM CDT | Severe Thunderstorm Warning | OUN | Comanche, Tillman | 41 min |
| May 13, 7:40 PM CDT | Tornado Warning | OUN | Baylor, Knox | 35 min |
| May 13, 7:45 PM CDT | Severe Thunderstorm Warning | OUN | Kiowa | 30 min |
| May 13, 7:55 PM CDT | Severe Thunderstorm Warning | OUN | Jackson | 35 min |
| May 13, 7:57 PM CDT | Severe Thunderstorm Warning | OUN | Washita | 32 min |
| May 13, 8:09 PM CDT | Severe Thunderstorm Warning | OUN | Comanche | 51 min |
| May 13, 8:10 PM CDT | Severe Thunderstorm Warning | OUN | Baylor | 65 min |
| May 13, 8:13 PM CDT | Severe Thunderstorm Warning | OUN | Knox | 62 min |
| May 13, 8:16 PM CDT | Severe Thunderstorm Warning | OUN | Blaine, Kingfisher | 59 min |
| May 13, 8:19 PM CDT | Severe Thunderstorm Warning | OUN | Lincoln | 56 min |
| May 13, 8:25 PM CDT | Severe Thunderstorm Warning | OUN | Logan, Payne | 50 min |
| May 13, 8:28 PM CDT | Severe Thunderstorm Warning | OUN | Custer | 47 min |
| May 13, 8:31 PM CDT | Severe Thunderstorm Warning | OUN | Tillman | 44 min |
| May 13, 8:38 PM CDT | Severe Thunderstorm Warning | OUN | Caddo | 52 min |
| May 13, 8:44 PM CDT | Severe Thunderstorm Warning | OUN | Harmon | 46 min |
| May 13, 9:14 PM CDT | Severe Thunderstorm Warning | OUN | Lincoln | 46 min |
| May 13, 9:25 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 80 min |
| May 13, 9:40 PM CDT | Severe Thunderstorm Warning | OUN | Hardeman | 50 min |
| May 13, 10:25 PM CDT | Severe Thunderstorm Warning | OUN | Hardeman | 50 min |
| May 13, 10:57 PM CDT | Severe Thunderstorm Warning | OUN | Wilbarger | 48 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Fort Sill, OK (KFSI), launched 12:00Z, 11.8 hours before the alert went out and 44 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
- 6 J/kg
- Mixed-layer CIN
- -569 J/kg
- Mixed-layer LCL
- 745 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 221 m²/s²
- 0-3 km storm-relative helicity
- 526 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 7.8
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 132341
SEL4
SPC WW 132341
OKZ000-TXZ000-140700-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 274
NWS STORM PREDICTION CENTER NORMAN OK
645 PM CDT FRI MAY 13 2005
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
WESTERN OKLAHOMA
NORTHWEST TEXAS
EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 645 PM UNTIL
200 AM CDT.
TORNADOES...HAIL TO 4 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE MILES
EAST AND WEST OF A LINE FROM 60 MILES NORTH OF OKLAHOMA CITY
OKLAHOMA TO 60 MILES SOUTHWEST OF WICHITA FALLS TEXAS. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU4).
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.
OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 269. WATCH NUMBER 269 WILL NOT BE IN EFFECT AFTER 645
PM CDT. CONTINUE...WW 267...WW 268...WW 270...WW 271...WW 272...WW
273...
DISCUSSION...LARGE SUPERCELLS ACROSS NWRN AND SWRN OK AS WELL AS
NWRN TX ATTM. WITH VERY FAVORABLE SHEAR AND INSTABILITY...THESE AND
OTHER STORMS EXPECTED TO PERSIST AND DEVELOP SEWD. ALONG WITH VERY
LARGE HAIL POTENTIAL...TORNADOES WILL ALSO BE LIKELY
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600.
MEAN STORM MOTION VECTOR 28020.
...HALES
361,0960 332,0975 332,1003 361,0990SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 12, 7:56 PM CDT | Mesoscale Discussion | SPC | Beckham, Greer, Harmon, Jackson | 64 min |
| May 12, 8:40 PM CDT | Tornado Watch | SPC | Greer, Harmon, Jackson | 5 hr |
| May 12, 9:35 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Beckham, Blaine, Custer, Dewey, Ellis and 10 more | 85 min |
| May 12, 10:48 PM CDT | Mesoscale Discussion | SPC | Caddo, Comanche, Cotton, Garvin, Grady, Jefferson and 3 more | 57 min |
| May 12, 11:35 PM CDT | Severe Thunderstorm Watch | SPC | Alfalfa, Blaine, Caddo, Canadian, Comanche, Cotton and 17 more | 5 hr |
| May 13, 1:04 AM CDT | Mesoscale Discussion | SPC | Caddo, Canadian, Comanche, Cotton, Garfield, Grady and 5 more | 86 min |
| May 13, 4:04 AM CDT | Mesoscale Discussion | SPC | Comanche, Cotton, Stephens, Tillman | 56 min |
| May 13, 1:52 PM CDT | Mesoscale Discussion | SPC | Harmon, Jackson | 83 min |
| May 13, 2:10 PM CDT | Tornado Watch | SPC | Beckham, Blaine, Caddo, Comanche, Cotton, Custer and 8 more | 7 hr |
| May 13, 3:50 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Craig, Garfield, Grant, Harper, Kay and 8 more | 85 min |
| May 13, 5:05 PM CDT | Severe Thunderstorm Watch | SPC | Alfalfa, Blaine, Craig, Custer, Delaware, Dewey and 21 more | 7 hr |
| May 13, 5:56 PM CDT | Mesoscale Discussion | SPC | Beckham, Blaine, Caddo, Comanche, Cotton, Custer and 8 more | 64 min |
| May 13, 6:25 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Blaine, Custer, Dewey, Garfield, Grant and 12 more | 65 min |
| May 13, 1:12 AM CDT | Mesoscale Discussion | SPC | Childress, Cottle, Crosby, Floyd, Hale, Hall and 2 more | 63 min |
| May 13, 1:30 AM CDT | Severe Thunderstorm Watch | SPC | Baylor, Cottle, Crosby, Dickens, Floyd, Foard and 8 more | 5 hr |
| May 13, 2:13 PM CDT | Mesoscale Discussion | SPC | Brewster, Crockett, Irion, Terrell | 2 hr |
| May 13, 6:08 PM CDT | Mesoscale Discussion | SPC | Coke, Crane, Fisher, Glasscock, Howard, Irion and 11 more | 67 min |
| May 13, 6:25 PM CDT | Tornado Watch | SPC | Brown, Callahan, Coke, Coleman, Concho, Eastland and 16 more | 7 hr |
Nearby
Tornado Watches in Oklahoma, 2005Tornado Watches in Texas, 2005Every tornado watch in 2005
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.