Alert archive / Texas / Tornado Watches in 2007
Tornado Watch 314
The Storm Prediction Center issued this tornado watch at May 31, 2007, 3:45 PM MDT for 9 counties in New Mexico; 27 counties in Texas. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 31, 2007, 3:45 PM MDT (21:45 UTC)
- Expired
- May 31, 2007, 10:00 PM MDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 60 kt
All 36 counties
Chaves County, NM, Curry County, NM, De Baca County, NM, Eddy County, NM, Guadalupe County, NM, Lea County, NM, Lincoln County, NM, Quay County, NM, Roosevelt County, NM, Andrews County, TX, Bailey County, TX, Borden County, TX, Briscoe County, TX, Castro County, TX, Childress County, TX, Cochran County, TX, Cottle County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Floyd County, TX, Gaines County, TX, Garza County, TX, Hale County, TX, Hall County, TX, Hockley County, TX, King County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Motley County, TX, Parmer County, TX, Swisher County, TX, Terry County, TX, Yoakum County, TX
The radar
The Cannon AFB radar (KFDX), 72 km from the middle of the area, began a volume at 21:48 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
- 30%
- Ten or more severe hail reports
- 60%
- One or more hailstones of 2 inches or more
- 40%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
31 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 3:56 PM MDT | Severe Thunderstorm Warning | ABQ | Chaves | 64 min |
| May 31, 4:38 PM MDT | Severe Thunderstorm Warning | LUB | Lamb | 67 min |
| May 31, 5:19 PM MDT | Severe Thunderstorm Warning | LUB | Hale | 56 min |
| May 31, 5:24 PM MDT | Severe Thunderstorm Warning | MAF | Lea | 28 min |
| May 31, 5:26 PM MDT | Severe Thunderstorm Warning | LUB | Swisher | 64 min |
| May 31, 5:33 PM MDT | Severe Thunderstorm Warning | MAF | Lea | 57 min |
| May 31, 5:41 PM MDT | Severe Thunderstorm Warning | LUB | Lamb | 64 min |
| May 31, 6:07 PM MDT | Severe Thunderstorm Warning | LUB | Cochran | 53 min |
| May 31, 6:11 PM MDT | Severe Thunderstorm Warning | LUB | Hale | 64 min |
| May 31, 6:29 PM MDT | Severe Thunderstorm Warning | MAF | Lea | 46 min |
| May 31, 6:37 PM MDT | Severe Thunderstorm Warning | MAF | Eddy, Lea | 53 min |
| May 31, 6:41 PM MDT | Tornado Warning | LUB | Crosby, Floyd, Hale, Lubbock | 34 min |
| May 31, 6:44 PM MDT | Severe Thunderstorm Warning | LUB | Yoakum | 46 min |
| May 31, 6:50 PM MDT | Severe Thunderstorm Warning | LUB | Lamb | 55 min |
| May 31, 7:00 PM MDT | Severe Thunderstorm Warning | LUB | Cochran | 30 min |
| May 31, 7:15 PM MDT | Severe Thunderstorm Warning | LUB | Floyd, Hale, Lubbock | 60 min |
| May 31, 7:15 PM MDT | Tornado Warning | LUB | Crosby | 45 min |
| May 31, 7:16 PM MDT | Severe Thunderstorm Warning | MAF | Lea | 59 min |
| May 31, 7:21 PM MDT | Tornado Warning | LUB | Floyd, Hale | 39 min |
| May 31, 7:21 PM MDT | Tornado Warning | LUB | Floyd, Hale | 39 min |
| May 31, 7:31 PM MDT | Severe Thunderstorm Warning | LUB | Yoakum | 59 min |
| May 31, 7:35 PM MDT | Flash Flood Warning | LUB | Floyd, Hale | 115 min |
| May 31, 7:53 PM MDT | Tornado Warning | LUB | Floyd | 52 min |
| May 31, 7:56 PM MDT | Tornado Warning | LUB | Hale | 34 min |
| May 31, 8:01 PM MDT | Severe Thunderstorm Warning | LUB | Terry | 59 min |
| May 31, 8:12 PM MDT | Severe Thunderstorm Warning | LUB | Lubbock | 63 min |
| May 31, 8:30 PM MDT | Flash Flood Warning | LUB | Yoakum | 60 min |
| May 31, 8:30 PM MDT | Severe Thunderstorm Warning | LUB | Yoakum | 16 min |
| May 31, 8:39 PM MDT | Tornado Warning | LUB | Floyd | 36 min |
| May 31, 8:49 PM MDT | Severe Thunderstorm Warning | LUB | Crosby | 56 min |
| May 31, 9:13 PM MDT | Severe Thunderstorm Warning | LUB | Motley | 62 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, 9.8 hours before the alert went out and 211 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1454 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 202 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 312145
SEL4
SPC WW 312145
NMZ000-TXZ000-010400-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 314
NWS STORM PREDICTION CENTER NORMAN OK
445 PM CDT THU MAY 31 2007
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
EASTERN NEW MEXICO
WEST TEXAS
EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 445 PM UNTIL
1100 PM CDT.
TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 115 STATUTE
MILES EAST AND WEST OF A LINE FROM 55 MILES NORTH NORTHEAST OF
CANNON AFB NEW MEXICO TO 25 MILES SOUTH OF HOBBS NEW MEXICO. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU4).
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 312...WW 313...
DISCUSSION...SCATTERED THUNDERSTORMS ARE INCREASING ALONG THE
MOUNTAINS OF SOUTHEAST NM...AND ALONG WEAK BOUNDARY ACROSS WEST TX.
ACTIVITY IS EXPECTED TO INCREASE IN AREAL COVERAGE THROUGH THE
AFTERNOON AND EVENING...SPREADING EASTWARD ACROSS WEST TX. VERTICAL
SHEAR IS FAVORABLE FOR SUPERCELLS CAPABLE OF VERY LARGE HAIL AND
DAMAGING WINDS. VERY UNSTABLE AIR MASS /MLCAPE VALUES OVER 3000
J/KG/ AND BACKED LOW LEVEL WINDS MAY ALSO RESULT IN ISOLATED
TORNADOES.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 26025.
...HARTSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 1:33 PM MDT | Mesoscale Discussion | SPC | Chaves, De Baca, Guadalupe, Harding, Lincoln, Mora and 2 more | 87 min |
| May 30, 6:27 PM MDT | Severe Thunderstorm Watch | SPC | Brown, Burnet, Callahan, Coleman, Comanche, Concho and 21 more | 5 hr |
| May 31, 12:04 AM MDT | Mesoscale Discussion | SPC | Bell, Blanco, Bosque, Brown, Burnet, Comanche and 18 more | 116 min |
| May 31, 2:28 PM MDT | Mesoscale Discussion | SPC | Armstrong, Briscoe, Carson, Castro, Collingsworth, Dallam and 21 more | 92 min |
| May 31, 2:29 PM MDT | Tornado Watch | SPC | Armstrong, Carson, Collingsworth, Dallam, Deaf Smith, Donley and 14 more | 7 hr |
Nearby
Tornado Watches in Texas, 2007Tornado Watches in New Mexico, 2007Every tornado watch in 2007
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.