Alert archive / Texas / Tornado Watches in 2015
Tornado Watch 95
The Storm Prediction Center issued this tornado watch at Apr 22, 2015, 2:56 PM CDT for 42 counties in Texas. It was in force for 9 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 22, 2015, 2:56 PM CDT (19:56 UTC)
- Expired
- Apr 23, 2015, 12:00 AM CDT
- In force
- 9 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 3 in
- Strongest gust expected
- 60 kt
All 42 counties
Archer County, TX, Armstrong County, TX, Bailey County, TX, Baylor County, TX, Briscoe County, TX, Callahan County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Clay County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Deaf Smith County, TX, Dickens County, TX, Donley County, TX, Fisher County, TX, Floyd County, TX, Foard County, TX, Hale County, TX, Hall County, TX, Hardeman County, TX, Haskell County, TX, Jones County, TX, Kent County, TX, King County, TX, Knox County, TX, Lamb County, TX, Lubbock County, TX, Motley County, TX, Nolan County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Shackelford County, TX, Stonewall County, TX, Swisher County, TX, Taylor County, TX, Throckmorton County, TX, Wichita County, TX, Wilbarger County, TX
The radar
The Lubbock radar (KLBB), 84 km from the middle of the area, began a volume at 19:57 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
- 50%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 70%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 90%
- One or more hailstones of 2 inches or more
- 70%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
36 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 3:09 PM CDT | Severe Thunderstorm Warning | AMA | Deaf Smith | 51 min |
| Apr 22, 3:59 PM CDT | Severe Thunderstorm Warning | AMA | Deaf Smith | 46 min |
| Apr 22, 4:44 PM CDT | Severe Thunderstorm Warning | AMA | Deaf Smith | 61 min |
| Apr 22, 5:20 PM CDT | Tornado Warning | AMA | Deaf Smith, Randall | 40 min |
| Apr 22, 5:40 PM CDT | Severe Thunderstorm Warning | LUB | Castro, Swisher | 50 min |
| Apr 22, 5:51 PM CDT | Tornado Warning | AMA | Deaf Smith, Randall | 34 min |
| Apr 22, 5:59 PM CDT | Severe Thunderstorm Warning | AMA | Deaf Smith, Randall | 38 min |
| Apr 22, 6:26 PM CDT | Severe Thunderstorm Warning | AMA | Armstrong, Randall | 61 min |
| Apr 22, 6:28 PM CDT | Severe Thunderstorm Warning | LUB | Castro, Swisher | 62 min |
| Apr 22, 6:29 PM CDT | Tornado Warning | SJT | Fisher, Nolan | 31 min |
| Apr 22, 6:58 PM CDT | Tornado Warning | SJT | Fisher, Nolan | 32 min |
| Apr 22, 7:05 PM CDT | Severe Thunderstorm Warning | LUB | Floyd, Hale | 40 min |
| Apr 22, 7:06 PM CDT | Severe Thunderstorm Warning | LUB | Briscoe, Floyd, Hall, Swisher | 39 min |
| Apr 22, 7:18 PM CDT | Tornado Warning | SJT | Nolan, Taylor | 27 min |
| Apr 22, 7:42 PM CDT | Severe Thunderstorm Warning | LUB | Briscoe, Floyd, Hall, Motley | 48 min |
| Apr 22, 7:44 PM CDT | Tornado Warning | SJT | Nolan, Taylor | 31 min |
| Apr 22, 7:46 PM CDT | Severe Thunderstorm Warning | LUB | Floyd, Hale | 44 min |
| Apr 22, 7:55 PM CDT | Tornado Warning | LUB | Floyd, Hale | 35 min |
| Apr 22, 8:13 PM CDT | Severe Thunderstorm Warning | SJT | Callahan, Runnels, Taylor | 47 min |
| Apr 22, 8:25 PM CDT | Severe Thunderstorm Warning | LUB | Cottle, Dickens, King, Motley | 50 min |
| Apr 22, 8:30 PM CDT | Severe Thunderstorm Warning | LUB | Floyd | 30 min |
| Apr 22, 9:00 PM CDT | Severe Thunderstorm Warning | LUB | Floyd | 30 min |
| Apr 22, 9:09 PM CDT | Severe Thunderstorm Warning | LUB | Cottle, Dickens, King, Motley | 51 min |
| Apr 22, 9:11 PM CDT | Severe Thunderstorm Warning | OUN | Foard, Knox | 79 min |
| Apr 22, 9:33 PM CDT | Tornado Warning | OUN | Knox | 42 min |
| Apr 22, 9:51 PM CDT | Severe Thunderstorm Warning | LUB | Dickens, King, Stonewall | 39 min |
| Apr 22, 10:06 PM CDT | Severe Thunderstorm Warning | SJT | Haskell, Throckmorton | 39 min |
| Apr 22, 10:12 PM CDT | Tornado Warning | OUN | Baylor, Knox | 48 min |
| Apr 22, 10:16 PM CDT | Tornado Warning | SJT | Haskell, Throckmorton | 29 min |
| Apr 22, 10:29 PM CDT | Severe Thunderstorm Warning | LUB | King, Stonewall | 46 min |
| Apr 22, 10:47 PM CDT | Severe Thunderstorm Warning | SJT | Haskell, Throckmorton | 43 min |
| Apr 22, 10:51 PM CDT | Tornado Warning | SJT | Haskell, Throckmorton | 24 min |
| Apr 22, 11:05 PM CDT | Severe Thunderstorm Warning | SJT | Haskell | 40 min |
| Apr 22, 11:09 PM CDT | Severe Thunderstorm Warning | SJT | Throckmorton | 51 min |
| Apr 22, 11:15 PM CDT | Tornado Warning | SJT | Haskell, Throckmorton | 30 min |
| Apr 22, 11:45 PM CDT | Severe Thunderstorm Warning | SJT | Haskell, Jones, Shackelford, Throckmorton | 45 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
Amarillo Airport, TX (KAMA), launched 12:00Z, 7.9 hours before the alert went out and 116 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
- 10 J/kg
- Mixed-layer CIN
- -339 J/kg
- Mixed-layer LCL
- 2161 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -146 m²/s²
- 0-3 km storm-relative helicity
- -127 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
923
WWUS20 KWNS 221954
SEL5
SPC WW 221954
OKZ000-TXZ000-230300-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 95
NWS STORM PREDICTION CENTER NORMAN OK
255 PM CDT WED APR 22 2015
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* TORNADO WATCH FOR PORTIONS OF
SOUTHWEST OKLAHOMA
WEST AND WESTERN NORTH TEXAS
* EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 255 PM
UNTIL 1000 PM CDT.
* PRIMARY THREATS INCLUDE...
A FEW TORNADOES POSSIBLE
WIDESPREAD LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 3
INCHES IN DIAMETER LIKELY
SCATTERED DAMAGING WIND GUSTS TO 70 MPH LIKELY
SUMMARY...SCATTERED THUNDERSTORMS ARE BEGINNING TO DEVELOP WEST OF
AMARILLO. THESE STORMS WILL TRACK EAST-SOUTHEASTWARD THROUGH THE
AFTERNOON AND EVENING INTO AN AREA OF INCREASINGLY MOIST/UNSTABLE
AIR. SUPERCELLS CAPABLE OF VERY LARGE HAIL...DAMAGING WINDS...AND A
FEW TORNADOES ARE EXPECTED.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 85 MILES WEST NORTHWEST OF
PLAINVIEW TEXAS TO 50 MILES SOUTH OF WICHITA FALLS TEXAS. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU5).
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 94...
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 28030.
...HARTSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 2:55 AM CDT | Mesoscale Discussion | SPC | Hemphill, Wheeler | 3 hr |
| Apr 22, 10:43 AM CDT | Mesoscale Discussion | SPC | Aransas, Atascosa, Austin, Bandera, Bastrop, Bee and 36 more | 2 hr |
| Apr 22, 11:13 AM CDT | Tornado Watch | SPC | Aransas, Bee, Calhoun, Duval, Goliad, Jim Wells and 7 more | 7 hr |
| Apr 22, 12:07 PM CDT | Mesoscale Discussion | SPC | Jim Wells, Nueces | 83 min |
| Apr 22, 1:43 PM CDT | Mesoscale Discussion | SPC | Atascosa, Austin, Bandera, Bastrop, Bexar, Caldwell and 15 more | 92 min |
| Apr 22, 2:07 PM CDT | Mesoscale Discussion | SPC | Archer, Armstrong, Baylor, Briscoe, Castro, Childress and 25 more | 2 hr |
| Apr 22, 2:29 PM CDT | Mesoscale Discussion | SPC | Aransas, Bee, Calhoun, Duval, Goliad, Jim Wells and 5 more | 61 min |
| Apr 22, 5:48 PM CDT | Mesoscale Discussion | SPC | Bosque, Comanche, Coryell, Ellis, Erath, Hamilton and 8 more | 117 min |
| Apr 22, 6:45 PM CDT | Mesoscale Discussion | SPC | Archer, Armstrong, Baylor, Briscoe, Carson, Castro and 29 more | 2 hr |
Nearby
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.