Alert archive / Texas / Tornado Watches in 2015
Tornado Watch 94
The Storm Prediction Center issued this tornado watch at Apr 22, 2015, 11:13 AM CDT for 13 counties in Texas. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 22, 2015, 11:13 AM CDT (16:13 UTC)
- Expired
- Apr 22, 2015, 6:00 PM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
Counties Aransas County, TX, Bee County, TX, Calhoun County, TX, Duval County, TX, Goliad County, TX, Jim Wells County, TX, Kleberg County, TX, Live Oak County, TX, McMullen County, TX, Nueces County, TX, Refugio County, TX, San Patricio County, TX, Victoria County, TX
The radar
The Corpus Christi radar (KCRP), 37 km from the middle of the area, began a volume at 16:14 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
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 40%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
13 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 11:25 AM CDT | Severe Thunderstorm Warning | CRP | Duval, Jim Wells, Live Oak, McMullen | 35 min |
| Apr 22, 12:00 PM CDT | Severe Thunderstorm Warning | CRP | Duval, Jim Wells | 45 min |
| Apr 22, 12:27 PM CDT | Severe Thunderstorm Warning | CRP | Jim Wells, Nueces, San Patricio | 33 min |
| Apr 22, 12:53 PM CDT | Flash Flood Warning | CRP | Nueces, San Patricio | 112 min |
| Apr 22, 12:59 PM CDT | Severe Thunderstorm Warning | CRP | Kleberg, Nueces | 46 min |
| Apr 22, 1:45 PM CDT | Severe Thunderstorm Warning | CRP | Kleberg, Nueces | 30 min |
| Apr 22, 2:00 PM CDT | Flash Flood Warning | CRP | Kleberg, Nueces, San Patricio | 90 min |
| Apr 22, 2:18 PM CDT | Severe Thunderstorm Warning | CRP | Kleberg, Nueces | 14 min |
| Apr 22, 3:54 PM CDT | Severe Thunderstorm Warning | CRP | Bee, Goliad | 21 min |
| Apr 22, 4:09 PM CDT | Flash Flood Warning | CRP | Goliad | 66 min |
| Apr 22, 4:14 PM CDT | Severe Thunderstorm Warning | CRP | Bee, Goliad, Refugio, Victoria | 31 min |
| Apr 22, 4:44 PM CDT | Severe Thunderstorm Warning | CRP | Aransas, Calhoun, Goliad, Refugio, Victoria | 31 min |
| Apr 22, 5:16 PM CDT | Severe Thunderstorm Warning | CRP | Aransas, Calhoun, Refugio | 44 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
Corpus Christi, TX (KCRP), launched 12:00Z, 4.2 hours before the alert went out and 55 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
- 856 J/kg
- Mixed-layer CIN
- -173 J/kg
- Mixed-layer LCL
- 763 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 159 m²/s²
- 0-3 km storm-relative helicity
- 202 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
001
WWUS20 KWNS 221610
SEL4
SPC WW 221610
TXZ000-CWZ000-222200-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 94
NWS STORM PREDICTION CENTER NORMAN OK
1115 AM CDT WED APR 22 2015
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* TORNADO WATCH FOR PORTIONS OF
MIDDLE TEXAS COAST
COASTAL WATERS
* EFFECTIVE THIS WEDNESDAY MORNING AND AFTERNOON FROM 1115 AM
UNTIL 500 PM CDT.
* PRIMARY THREATS INCLUDE...
A COUPLE TORNADOES POSSIBLE
SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2
INCHES IN DIAMETER POSSIBLE
SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
SUMMARY...ISOLATED BUT INTENSE THUNDERSTORMS ARE POSSIBLE TODAY OVER
PARTS OF THE CENTRAL TX GULF COAST REGION TODAY...WITH ISOLATED
SUPERCELLS POSSIBLE. VERY MOIST CONDITIONS AND BACKED LOW LEVEL
WINDS POSE A RISK OF ISOLATED TORNADOES...ALONG WITH HAIL AND
DAMAGING WINDS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE
MILES EAST AND WEST OF A LINE FROM 35 MILES SOUTH SOUTHEAST OF
ALICE TEXAS TO 30 MILES NORTH NORTHEAST OF BEEVILLE TEXAS. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU4).
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.
&&
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 27030.
...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, 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, 2:56 PM CDT | Tornado Watch | SPC | Archer, Armstrong, Bailey, Baylor, Briscoe, Callahan and 36 more | 9 hr |
| 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.