Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL5
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 155
NWS STORM PREDICTION CENTER NORMAN OK
440 PM CDT THU APR 3 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
SOUTHWEST TEXAS
EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 440 PM UNTIL
900 PM CDT.
TORNADOES...HAIL TO 4 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 60 STATUTE
MILES EAST AND WEST OF A LINE FROM 55 MILES SOUTHEAST OF DRYDEN
TEXAS TO 110 MILES NORTHEAST OF DRYDEN TEXAS. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU5).
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 153...WW 154...
DISCUSSION...INTENSE SUPERCELL IN TERRELL COUNTY TX CONTINUES EARLY
THIS EVENING. ENVIRONMENT IS VERY UNSTABLE BUT CAP STRENGTHENS WITH
EWD EXTENT. HOWEVER...VERY STRONG DEEP LAYER SHEAR WILL CONTINUE TO
SUPPORT SUPERCELLS AND LIKELY VERY LARGE HAIL WITH MID/UPPER JET
OVERSPREADING THE REGION. AN ISOLATED TORNADO OR TWO IS ALSO
POSSIBLE...ALONG WITH DAMAGING WINDS...WITH ANY PERSISTENT
SUPERCELL.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 27030.
...EVANS
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW5
WW 155 TORNADO TX 032140Z - 040200Z
AXIS..60 STATUTE MILES EAST AND WEST OF LINE..
55SE 6R6/DRYDEN TX/ - 110NE 6R6/DRYDEN TX/
..AVIATION COORDS.. 50NM E/W /42W DLF - 26WSW SJT/
HAIL SURFACE AND ALOFT..4 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 27030.
LAT...LON 29460255 31150191 31159987 29460056
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU5.
Watch 155 Status Report Messages:
STATUS REPORT #1 ON WW 155
VALID 032230Z - 032340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..HURLBUT..04/03/08
ATTN...WFO...SJT...EWX...MAF...
&&
STATUS REPORT FOR WT 155
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC105-137-271-413-435-443-465-032340-
TX
. TEXAS COUNTIES INCLUDED ARE
CROCKETT EDWARDS KINNEY
SCHLEICHER SUTTON TERRELL
VAL VERDE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (20%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (20%)
|
Wind
Probability of 10 or more severe wind events
|
Low (20%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (30%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (40%)
|
Probability
of 1 or
more hailstones > 2 inches
|
High (80%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
Mod (50%)
|
For each watch, probabilities for particular events inside the watch
(listed above in each table) are determined by the issuing forecaster.
The "Low" category contains probability values ranging from less than 2%
to 20% (F2-F5 tornadoes), less than 5% to 20% (all other probabilities),
"Moderate" from 30% to 60%, and "High" from 70% to greater than 95%.
High values are bolded and lighter in color to provide awareness of
an increased threat for a particular event.
weather.gov 
