Alert archive / Oklahoma / Tornado Watches in 2015
Tornado Watch 208
The Storm Prediction Center issued this tornado watch at May 24, 2015, 8:24 PM CDT for 5 counties in Oklahoma; Hansford County, Lipscomb County, Ochiltree County, Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- May 24, 2015, 8:24 PM CDT (01:24 UTC)
- Expired
- May 25, 2015, 1:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
Counties Beaver County, OK, Ellis County, OK, Harper County, OK, Texas County, OK, Woodward County, OK, Hansford County, TX, Lipscomb County, TX, Ochiltree County, TX
The radar
The Dodge City radar (KDDC), 139 km from the middle of the area, began a volume at 01:28 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 SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 30%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 20%
- One or more gusts of 65 knots or more
- 5%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 60%
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Dodge City, (KDDC), launched 00:00Z, 1.4 hours before the alert went out and 143 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
- 819 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 638 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
813 WWUS20 KWNS 250120 SEL8 SPC WW 250120 OKZ000-TXZ000-250600- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 208 NWS STORM PREDICTION CENTER NORMAN OK 825 PM CDT SUN MAY 24 2015 THE NWS STORM PREDICTION CENTER HAS ISSUED A * TORNADO WATCH FOR PORTIONS OF THE OKLAHOMA PANHANDLE AND NORTHWEST OKLAHOMA THE NORTHEAST TEXAS PANHANDLE * EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 825 PM UNTIL 100 AM CDT. * PRIMARY THREATS INCLUDE... A COUPLE TORNADOES POSSIBLE ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE SUMMARY...WIDELY SCATTERED SUPERCELLS WITH A RISK FOR HAIL AND A COUPLE TORNADOES WILL AFFECT WATCH AREA THROUGH EARLY MONDAY. THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE MILES EAST AND WEST OF A LINE FROM 65 MILES NORTHWEST OF GAGE OKLAHOMA TO 20 MILES SOUTHWEST OF GAGE OKLAHOMA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8). PRECAUTIONARY/PREPAREDNESS ACTIONS... 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...CONTINUE...WW 205...WW 206...WW 207... AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 22025. ...CORFIDI
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 7:57 PM CDT | Mesoscale Discussion | SPC | Beaver, Ellis, Texas | 93 min |
| May 25, 10:13 AM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Carter, Choctaw, Coal, Comanche and 10 more | 2 hr |
| May 25, 10:54 AM CDT | Tornado Watch | SPC | Atoka, Bryan, Caddo, Canadian, Carter, Cleveland and 21 more | 7 hr |
| May 25, 12:22 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Blaine, Caddo, Canadian, Cleveland, Creek and 26 more | 83 min |
| May 25, 1:54 PM CDT | Mesoscale Discussion | SPC | Carter, Cleveland, Cotton, Garvin, Grady, Jefferson and 8 more | 2 hr |
| May 25, 2:35 PM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Choctaw, Coal, Latimer, LeFlore and 2 more | 55 min |
| May 25, 2:52 PM CDT | Tornado Watch | SPC | Adair, Cherokee, Choctaw, Delaware, Haskell, Latimer and 7 more | 8 hr |
| May 25, 5:15 PM CDT | Mesoscale Discussion | SPC | Adair, Haskell, LeFlore, McCurtain, Sequoyah | 90 min |
| May 25, 3:17 AM CDT | Mesoscale Discussion | SPC | Bandera, Coke, Crane, Crockett, Ector, Edwards and 21 more | 4 hr |
| May 25, 6:45 AM CDT | Severe Thunderstorm Watch | SPC | Andrews, Borden, Brown, Callahan, Coke, Coleman and 34 more | 6 hr |
| May 25, 6:50 AM CDT | Mesoscale Discussion | SPC | Andrews, Borden, Callahan, Coke, Coleman, Crosby and 26 more | 55 min |
| May 25, 7:53 AM CDT | Mesoscale Discussion | SPC | Bandera, Bexar, Blanco, Burnet, Comal, Frio and 8 more | 2 hr |
| May 25, 9:02 AM CDT | Tornado Watch | SPC | Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 27 more | 7 hr |
| May 25, 11:37 AM CDT | Mesoscale Discussion | SPC | Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 26 more | 113 min |
| May 25, 2:10 PM CDT | Mesoscale Discussion | SPC | Austin, Bastrop, Bexar, Blanco, Brazos, Burleson and 26 more | 95 min |
| May 25, 3:19 PM CDT | Mesoscale Discussion | SPC | Atascosa, Bandera, Bexar, Dimmit, Edwards, Frio and 9 more | 56 min |
| May 25, 5:51 PM CDT | Tornado Watch | SPC | Sabine | 6 hr |
| May 25, 6:06 PM CDT | Mesoscale Discussion | SPC | Austin, Brazoria, Chambers, Colorado, Fort Bend, Galveston and 14 more | 54 min |
| May 25, 6:24 PM CDT | Tornado Watch | SPC | Austin, Bee, Brazoria, Calhoun, Chambers, Colorado and 18 more | 9 hr |
Nearby
Tornado Watches in Oklahoma, 2015Tornado Watches in Texas, 2015Every tornado watch in 2015
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.