Alert archive / Texas / Tornado Watches in 2007
Tornado Watch 213
The Storm Prediction Center issued this tornado watch at May 2, 2007, 6:52 PM CDT for 6 counties in Texas. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- May 2, 2007, 6:52 PM CDT (23:52 UTC)
- Expired
- May 2, 2007, 9:45 PM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 70 kt
Counties Brewster County, TX, Crockett County, TX, Jeff Davis County, TX, Pecos County, TX, Presidio County, TX, Terrell County, TX
The radar
The Midland/Odessa radar (KMAF), 195 km from the middle of the area, began a volume at 23:53 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
- 10%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 50%
Warnings issued inside it
2 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 2, 6:55 PM CDT | Tornado Warning | MAF | Jeff Davis | 51 min |
| May 2, 7:24 PM CDT | Tornado Warning | MAF | Pecos, Reeves | 66 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
Midland Regional, TX (KMAF), launched 12:00Z, 11.9 hours before the alert went out and 195 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
- 948 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 909 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 162 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 022355
SEL3
SPC WW 022355
TXZ000-030600-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 213
NWS STORM PREDICTION CENTER NORMAN OK
655 PM CDT WED MAY 2 2007
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
THE TEXAS BIG BEND AND LOWER PECOS VALLEY OF WEST TEXAS
EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 655 PM
UNTIL 100 AM CDT.
TORNADOES...HAIL TO 2.5 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 50 STATUTE
MILES EITHER SIDE OF A LINE FROM 60 MILES WEST NORTHWEST OF FORT
STOCKTON TEXAS TO 20 MILES SOUTH SOUTHWEST OF DEL RIO TEXAS. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU3).
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 209. WATCH NUMBER 209 WILL NOT BE IN EFFECT AFTER
655 PM CDT. CONTINUE...WW 210...WW 211...WW 212...
DISCUSSION...POTENTIAL WILL CONTINUE FOR THE DEVELOPMENT OF DISCRETE
STORMS IN MOIST UPSLOPE FLOW ALONG AND W OF THE PECOS VLY OF W TX
THIS EVENING. CONTINUED EWD ADVANCE OF SRN NM UPR LOW AND
ASSOCIATED 50 KT MID LEVEL WLY SPEED MAX WILL MAINTAIN FORCING/DEEP
SHEAR FOR SUSTAINED STORMS/SUPERCELLS WITH LARGE HAIL AND POSSIBLE
TORNADOES.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 30030.
...CORFIDISPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 7:08 PM CDT | Mesoscale Discussion | SPC | Austin, Bandera, Bastrop, Bexar, Blanco, Brazos and 29 more | 97 min |
| May 2, 7:19 AM CDT | Mesoscale Discussion | SPC | Andrews, Dawson, Ector, Gaines, Loving, Martin and 4 more | 2 hr |
| May 2, 7:40 AM CDT | Mesoscale Discussion | SPC | Crane, Crockett, Ector, Loving, Midland, Pecos and 7 more | 2 hr |
| May 2, 8:02 AM CDT | Severe Thunderstorm Watch | SPC | Andrews, Borden, Coke, Crane, Crockett, Dawson and 20 more | 6 hr |
| May 2, 10:11 AM CDT | Mesoscale Discussion | SPC | Brewster, Crane, Crockett, Glasscock, Howard, Irion and 7 more | 94 min |
| May 2, 12:07 PM CDT | Mesoscale Discussion | SPC | Culberson, Hudspeth, Jeff Davis, Loving, Reeves | 113 min |
| May 2, 12:39 PM CDT | Mesoscale Discussion | SPC | Bandera, Brown, Callahan, Coke, Coleman, Comanche and 29 more | 66 min |
| May 2, 12:50 PM CDT | Tornado Watch | SPC | Bandera, Brown, Burnet, Callahan, Coke, Coleman and 31 more | 6 hr |
| May 2, 1:53 PM CDT | Severe Thunderstorm Watch | SPC | Andrews, Crane, Culberson, Dawson, Ector, Gaines and 14 more | 7 hr |
| May 2, 2:38 PM CDT | Mesoscale Discussion | SPC | Bosque, Coryell, Dallas, Denton, Ellis, Erath and 16 more | 2 hr |
| May 2, 3:08 PM CDT | Mesoscale Discussion | SPC | Dimmit, Frio, Kinney, Maverick, Uvalde, Val Verde and 1 more | 97 min |
| May 2, 3:43 PM CDT | Tornado Watch | SPC | Anderson, Bell, Bosque, Collin, Comanche, Cooke and 33 more | 6 hr |
| May 2, 5:08 PM CDT | Mesoscale Discussion | SPC | Atascosa, Bandera, Bastrop, Bexar, Blanco, Burleson and 20 more | 67 min |
| May 2, 5:53 PM CDT | Tornado Watch | SPC | Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 27 more | 7 hr |
| May 2, 6:05 PM CDT | Mesoscale Discussion | SPC | Andrews, Brewster, Cochran, Coke, Crane, Culberson and 22 more | 85 min |
| May 2, 6:54 PM CDT | Mesoscale Discussion | SPC | Anderson, Bell, Bosque, Brazos, Burnet, Camp and 54 more | 81 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.