Alert archive / Texas / Tornado Watches in 2015
Tornado Watch 124
The Storm Prediction Center issued this tornado watch at Apr 26, 2015, 10:45 PM CDT for 25 counties in Texas. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 26, 2015, 10:45 PM CDT (03:45 UTC)
- Expired
- Apr 27, 2015, 3:59 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 25 counties
Anderson County, TX, Bell County, TX, Bosque County, TX, Comanche County, TX, Coryell County, TX, Ellis County, TX, Erath County, TX, Falls County, TX, Freestone County, TX, Hamilton County, TX, Henderson County, TX, Hill County, TX, Hood County, TX, Johnson County, TX, Kaufman County, TX, Lampasas County, TX, Leon County, TX, Limestone County, TX, McLennan County, TX, Milam County, TX, Mills County, TX, Navarro County, TX, Robertson County, TX, Somervell County, TX, Van Zandt County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 94 km from the middle of the area, began a volume at 03:45 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
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 50%
- One or more hailstones of 2 inches or more
- 40%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 10:47 PM CDT | Severe Thunderstorm Warning | FWD | Ellis, Hill, Johnson | 58 min |
| Apr 26, 11:15 PM CDT | Severe Thunderstorm Warning | FWD | Hill | 60 min |
| Apr 26, 11:18 PM CDT | Severe Thunderstorm Warning | FWD | Ellis | 27 min |
| Apr 26, 11:24 PM CDT | Tornado Warning | FWD | Hill | 36 min |
| Apr 26, 11:28 PM CDT | Tornado Warning | FWD | Ellis, Hill, Johnson | 32 min |
| Apr 26, 11:39 PM CDT | Severe Thunderstorm Warning | FWD | Johnson | 52 min |
| Apr 26, 11:43 PM CDT | Severe Thunderstorm Warning | FWD | Dallas, Ellis, Tarrant | 62 min |
| Apr 26, 11:45 PM CDT | Flash Flood Warning | FWD | Bosque, Ellis, Hill | 3 hr |
| Apr 26, 11:57 PM CDT | Severe Thunderstorm Warning | FWD | Ellis, Hill, Navarro | 63 min |
| Apr 26, 11:58 PM CDT | Tornado Warning | FWD | Ellis, Hill, Johnson | 32 min |
| Apr 27, 12:12 AM CDT | Tornado Warning | FWD | Ellis | 33 min |
| Apr 27, 12:27 AM CDT | Severe Thunderstorm Warning | FWD | Bosque, Hill, McLennan | 31 min |
| Apr 27, 12:58 AM CDT | Severe Thunderstorm Warning | FWD | Limestone | 47 min |
| Apr 27, 3:15 AM CDT | Severe Thunderstorm Warning | FWD | Anderson | 60 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 Worth, TX (KFWD), launched 00:00Z, 3.8 hours before the alert went out and 122 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
- 1199 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 1646 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 248 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.3
The text
As transmitted, in the capitals the NWS used until 2016.
203
WWUS20 KWNS 270343
SEL4
SPC WW 270343
TXZ000-271000-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 124
NWS STORM PREDICTION CENTER NORMAN OK
1045 PM CDT SUN APR 26 2015
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* TORNADO WATCH FOR PORTIONS OF
PARTS OF CENTRAL AND NORTH CENTRAL TEXAS
* EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 1045 PM
UNTIL 500 AM CDT.
* PRIMARY THREATS INCLUDE...
A FEW TORNADOES POSSIBLE
SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2
INCHES IN DIAMETER POSSIBLE
ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
SUMMARY...CLUSTER OF SUPERCELLS JUST SW OF DFW METROPLEX MAY PERSIST
FOR ANOTHER COUPLE OF HOURS...WITH A CONTINUED RISK FOR LARGE HAIL
AND A FEW TORNADOES. AFTER MIDNIGHT...THE CONVECTION SHOULD BEGIN
TO MOVE MORE CLEARLY EWD AS THE PACIFIC COLD FRONT CONVECTION
OVERTAKES THE SUPERCELLS FROM THE W. LARGE HAIL AND DAMAGING WINDS
WILL BE POSSIBLE THROUGH THE EARLY MORNING HOURS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 85 STATUTE
MILES EAST AND WEST OF A LINE FROM 35 MILES NORTHWEST OF
CORSICANA TEXAS TO 50 MILES WEST SOUTHWEST OF TEMPLE 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.
&&
OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 121. WATCH NUMBER 121 WILL NOT BE IN EFFECT AFTER
1045 PM CDT. CONTINUE...WW 123...
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 27020.
...THOMPSONSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 7:10 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Carson, Childress, Clay, Collingsworth and 14 more | 65 min |
| Apr 26, 7:59 PM CDT | Severe Thunderstorm Watch | SPC | Bandera, Bexar, Blanco, Brown, Burnet, Coleman and 24 more | 6 hr |
| Apr 26, 9:29 PM CDT | Mesoscale Discussion | SPC | Dallas, Ellis, Hood, Hunt, Johnson, Kaufman and 4 more | 91 min |
| Apr 27, 12:49 AM CDT | Mesoscale Discussion | SPC | Anderson, Angelina, Atascosa, Austin, Bastrop, Bexar and 49 more | 86 min |
| Apr 27, 1:27 AM CDT | Tornado Watch | SPC | Angelina, Atascosa, Austin, Bastrop, Bee, Brazos and 50 more | 6 hr |
| Apr 27, 3:42 AM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Clay, Cooke, Denton, Foard and 12 more | 93 min |
| Apr 27, 4:56 AM CDT | Mesoscale Discussion | SPC | Angelina, Chambers, Hardin, Harris, Jasper, Jefferson and 13 more | 2 hr |
| Apr 27, 5:25 AM CDT | Mesoscale Discussion | SPC | Brooks, Kenedy | 95 min |
| Apr 27, 6:01 AM CDT | Tornado Watch | SPC | Jefferson, Orange | 7 hr |
| Apr 27, 1:08 PM CDT | Mesoscale Discussion | SPC | Angelina, Chambers, Hardin, Jasper, Jefferson, Liberty and 9 more | 97 min |
| Apr 27, 3:29 PM CDT | Mesoscale Discussion | SPC | Austin, Bastrop, Bell, Bosque, Brazos, Burleson and 22 more | 91 min |
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.