Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL2
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 372
NWS STORM PREDICTION CENTER NORMAN OK
315 AM CDT THU JUN 11 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHERN AND EASTERN TEXAS
EFFECTIVE THIS THURSDAY MORNING FROM 315 AM UNTIL 800 AM CDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 35
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 10 MILES NORTH
NORTHWEST OF MINERAL WELLS TEXAS TO 35 MILES SOUTH SOUTHEAST OF
LONGVIEW TEXAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 370...WW 371...
DISCUSSION...NUMEROUS VIGOROUS TSTMS HAVE DEVELOPED WITHIN ZONE OF
ENHANCED LOW LEVEL ASCENT LEFT IN THE WAKE OF EARLIER INTENSE MCS
AND BOW ECHO THAT MOVED ACROSS THE DFW AREA AND ESEWD TO PARTS OF
NERN TX. WHILE THE EARLIER SYSTEM HAS MOVED WELL EAST...WIND
PROFILER DATA INDICATED STRONG LOW LEVEL WARM AIR ADVECTION WAS
CONTINUING ATOP RESIDUAL MCS COLD POOL. VERY STRONG INSTABILITY
ACROSS THE REGION WILL LIKELY CONTINUE TO FUEL INTENSE UPDRAFTS
WITHIN A RELATIVELY NARROW CORRIDOR FROM THE DFW METROPLEX ESEWD
NEXT FEW HOURS. WEAK ELY COMPONENT TO LOW LEVEL FLOW...TOPPED BY
INCREASINGLY STRONG WLY FLOW TO ABOUT 40KT BETWEEN 3-5KM WAS
RESULTING IN SUFFICIENT SHEAR FOR SUPERCELLS AND BOWING STRUCTURES
CAPABLE OF PRODUCING DAMAGING WINDS AND LARGE HAIL.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. MEAN STORM
MOTION VECTOR 30035.
...CARBIN
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW2
WW 372 SEVERE TSTM TX 110815Z - 111300Z
AXIS..35 STATUTE MILES NORTH AND SOUTH OF LINE..
10NNW MWL/MINERAL WELLS TX/ - 35SSE GGG/LONGVIEW TX/
..AVIATION COORDS.. 30NM N/S /56W DFW - 33SSE GGG/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..70 KNOTS.
MAX TOPS TO 600. MEAN STORM MOTION VECTOR 30035.
LAT...LON 33419813 32419448 31409448 32409813
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU2.
Watch 372 Status Report Messages:
STATUS REPORT #4 ON WW 372
VALID 111240Z - 111300Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
WW 372 WILL BE EXPANDED IN AREA AND HAVE A NEW EXPIRATION TIME
OF 15Z.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1044.
..PETERS..06/11/09
ATTN...WFO...FWD...SHV...
&&
STATUS REPORT FOR WS 372
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC001-073-113-139-183-213-237-251-257-347-349-367-401-423-439-
467-497-111300-
TX
. TEXAS COUNTIES INCLUDED ARE
ANDERSON CHEROKEE DALLAS
ELLIS GREGG HENDERSON
JACK JOHNSON KAUFMAN
NACOGDOCHES NAVARRO PARKER
RUSK SMITH TARRANT
VAN ZANDT WISE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 372
VALID 111140Z - 111240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..PETERS..06/11/09
ATTN...WFO...FWD...SHV...
&&
STATUS REPORT FOR WS 372
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC001-073-113-139-183-213-237-251-257-347-349-367-401-423-439-
467-497-111240-
TX
. TEXAS COUNTIES INCLUDED ARE
ANDERSON CHEROKEE DALLAS
ELLIS GREGG HENDERSON
JACK JOHNSON KAUFMAN
NACOGDOCHES NAVARRO PARKER
RUSK SMITH TARRANT
VAN ZANDT WISE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 372
VALID 111035Z - 111140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1043.
..PETERS..06/11/09
ATTN...WFO...FWD...SHV...
&&
STATUS REPORT FOR WS 372
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC001-073-113-139-183-213-237-251-257-347-349-367-401-423-439-
467-497-111140-
TX
. TEXAS COUNTIES INCLUDED ARE
ANDERSON CHEROKEE DALLAS
ELLIS GREGG HENDERSON
JACK JOHNSON KAUFMAN
NACOGDOCHES NAVARRO PARKER
RUSK SMITH TARRANT
VAN ZANDT WISE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 372
VALID 110930Z - 111040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..PETERS..06/11/09
ATTN...WFO...FWD...SHV...
&&
STATUS REPORT FOR WS 372
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC001-073-113-139-183-213-237-251-257-347-349-367-401-423-439-
467-497-111040-
TX
. TEXAS COUNTIES INCLUDED ARE
ANDERSON CHEROKEE DALLAS
ELLIS GREGG HENDERSON
JACK JOHNSON KAUFMAN
NACOGDOCHES NAVARRO PARKER
RUSK SMITH TARRANT
VAN ZANDT WISE
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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 (5%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (40%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (40%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (30%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Low (20%)
|
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.