Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL6
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 226
NWS STORM PREDICTION CENTER NORMAN OK
155 PM CDT SAT MAY 2 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTH-CENTRAL TEXAS
EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 155 PM UNTIL
700 PM CDT.
TORNADOES...HAIL TO 3 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 20 MILES EAST NORTHEAST OF
DALLAS TEXAS TO 45 MILES SOUTHWEST OF WACO TEXAS. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU6).
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 225...
DISCUSSION...LIFT ASSOCIATED WITH APPROACHING SHORT WAVE TROUGH
APPEARS TO BE AIDING PRIMARILY POST-FRONTAL DEEP CONVECTION OVER
PARTS OF NCNTRL TX ATTM. VERY MOIST AIR MASS TO THE EAST OF THIS
FORCING AND SUBSEQUENT STORM DEVELOPMENT CONTINUES TO DESTABILIZE
WITH LIFT AND HEATING OF THE DAY EXPECTED TO REMOVE REMAINING
CONVECTIVE INHIBITION AHEAD OF THE SURFACE FRONT AND FRONTAL WAVE
OVER THE NEXT 1-2 HOURS. WIND FIELDS WILL CONTINUE TO INCREASE TO
SUPPORT ORGANIZED/PERSISTENT UPDRAFTS CAPABLE OF VERY LARGE HAIL. IF
SURFACE-BASED QUASI-DISCRETE TO LINEAR MODE STORMS DEVELOP ALONG THE
FRONT OVER THE NEXT FEW HOURS AS APPEARS POSSIBLE...DAMAGING WIND
AND TORNADO POTENTIAL WILL EXIST WITH THESE STORMS AND ACTIVITY WILL
SPREAD EAST INTO THE EARLY EVENING.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 27025.
...CARBIN
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW6
WW 226 TORNADO TX 021855Z - 030000Z
AXIS..60 STATUTE MILES EAST AND WEST OF LINE..
20ENE DAL/DALLAS TX/ - 45SW ACT/WACO TX/
..AVIATION COORDS.. 50NM E/W /26ENE DFW - 39SW ACT/
HAIL SURFACE AND ALOFT..3 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 27025.
LAT...LON 32959550 31149675 31149877 32959756
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU6.
Watch 226 Status Report Messages:
STATUS REPORT #2 ON WW 226
VALID 022030Z - 022140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..KERR..05/02/09
ATTN...WFO...FWD...
&&
STATUS REPORT FOR WT 226
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC027-035-099-113-139-145-161-193-213-217-221-251-257-281-293-
309-333-349-367-379-397-425-439-467-022140-
TX
. TEXAS COUNTIES INCLUDED ARE
BELL BOSQUE CORYELL
DALLAS ELLIS FALLS
FREESTONE HAMILTON HENDERSON
HILL HOOD JOHNSON
KAUFMAN LAMPASAS LIMESTONE
MCLENNAN MILLS NAVARRO
PARKER RAINS ROCKWALL
SOMERVELL TARRANT VAN ZANDT
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 226
VALID 022000Z - 022140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..KERR..05/02/09
ATTN...WFO...FWD...
&&
STATUS REPORT FOR WT 226
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC027-035-099-113-139-145-161-193-213-217-221-251-257-281-293-
309-333-349-367-379-397-425-439-467-022140-
TX
. TEXAS COUNTIES INCLUDED ARE
BELL BOSQUE CORYELL
DALLAS ELLIS FALLS
FREESTONE HAMILTON HENDERSON
HILL HOOD JOHNSON
KAUFMAN LAMPASAS LIMESTONE
MCLENNAN MILLS NAVARRO
PARKER RAINS ROCKWALL
SOMERVELL TARRANT VAN ZANDT
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Mod (40%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (20%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (30%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (30%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (60%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Mod (50%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (70%)
|
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.