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
SEVERE THUNDERSTORM WATCH NUMBER 375
NWS STORM PREDICTION CENTER NORMAN OK
1010 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 AND EVENING FROM 1010 AM UNTIL
600 PM CDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 90
STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES NORTH
NORTHWEST OF FORT WORTH TEXAS TO 40 MILES SOUTHWEST OF LUFKIN
TEXAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).
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 374...
DISCUSSION...ELEVATED TSTMS ARE FORMING THIS MORNING OVER N TX
WITHIN ZONE OF ASCENT N OF REMNANT OUTFLOW BOUNDARY. INFLOW AIR
MASS IS QUITE MOIST AND UNSTABLE WITH MLCAPE APPROACHING 2000-3000
J/KG LATER TODAY. THIS INSTABILITY IN CONJUNCTION WITH MODEST
DEEP-LAYER SHEAR WILL BE SUPPORTIVE OF UPSCALE STORM GROWTH INTO A
SEWD-MOVING MCS CAPABLE OF DAMAGING WINDS AND HAIL.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 30030.
...MEAD/THOMPSON
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW5
WW 375 SEVERE TSTM TX 111510Z - 112300Z
AXIS..90 STATUTE MILES EAST AND WEST OF LINE..
40NNW FTW/FORT WORTH TX/ - 40SW LFK/LUFKIN TX/
..AVIATION COORDS.. 80NM E/W /42NW DFW - 33SW LFK/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 30030.
LAT...LON 33349608 30809370 30809673 33349919
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU5.
Watch 375 Status Report Messages:
STATUS REPORT #4 ON WW 375
VALID 112155Z - 112240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..GUYER..06/11/09
ATTN...WFO...FWD...SHV...HGX...
&&
STATUS REPORT FOR WS 375
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC001-005-035-041-073-085-113-121-139-143-145-161-183-185-213-
217-221-225-231-237-251-257-289-293-309-313-347-349-363-367-373-
379-395-397-401-405-407-423-425-429-439-455-467-471-497-499-503-
112240-
TX
. TEXAS COUNTIES INCLUDED ARE
ANDERSON ANGELINA BOSQUE
BRAZOS CHEROKEE COLLIN
DALLAS DENTON ELLIS
ERATH FALLS FREESTONE
GREGG GRIMES HENDERSON
HILL HOOD HOUSTON
HUNT JACK JOHNSON
KAUFMAN LEON LIMESTONE
MCLENNAN MADISON NACOGDOCHES
NAVARRO PALO PINTO PARKER
POLK RAINS ROBERTSON
ROCKWALL RUSK SAN AUGUSTINE
SAN JACINTO SMITH SOMERVELL
STEPHENS TARRANT TRINITY
VAN ZANDT WALKER WISE
WOOD YOUNG
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 375
VALID 112055Z - 112140Z
AN ISOLATED SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH
AREA.
..MEAD..06/11/09
ATTN...WFO...FWD...SHV...HGX...
&&
STATUS REPORT FOR WS 375
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC001-005-035-041-073-085-113-121-139-143-145-161-183-185-213-
217-221-225-231-237-251-257-289-293-309-313-347-349-363-367-373-
379-395-397-401-405-407-423-425-429-439-455-467-471-497-499-503-
112140-
TX
. TEXAS COUNTIES INCLUDED ARE
ANDERSON ANGELINA BOSQUE
BRAZOS CHEROKEE COLLIN
DALLAS DENTON ELLIS
ERATH FALLS FREESTONE
GREGG GRIMES HENDERSON
HILL HOOD HOUSTON
HUNT JACK JOHNSON
KAUFMAN LEON LIMESTONE
MCLENNAN MADISON NACOGDOCHES
NAVARRO PALO PINTO PARKER
POLK RAINS ROBERTSON
ROCKWALL RUSK SAN AUGUSTINE
SAN JACINTO SMITH SOMERVELL
STEPHENS TARRANT TRINITY
VAN ZANDT WALKER WISE
WOOD YOUNG
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 375
VALID 111740Z - 111840Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..MEAD..06/11/09
ATTN...WFO...FWD...SHV...HGX...
&&
STATUS REPORT FOR WS 375
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC001-005-035-041-073-085-113-121-139-143-145-161-183-185-213-
217-221-225-231-237-251-257-289-293-309-313-347-349-363-367-373-
379-395-397-401-405-407-423-425-429-439-455-467-471-497-499-503-
111840-
TX
. TEXAS COUNTIES INCLUDED ARE
ANDERSON ANGELINA BOSQUE
BRAZOS CHEROKEE COLLIN
DALLAS DENTON ELLIS
ERATH FALLS FREESTONE
GREGG GRIMES HENDERSON
HILL HOOD HOUSTON
HUNT JACK JOHNSON
KAUFMAN LEON LIMESTONE
MCLENNAN MADISON NACOGDOCHES
NAVARRO PALO PINTO PARKER
POLK RAINS ROBERTSON
ROCKWALL RUSK SAN AUGUSTINE
SAN JACINTO SMITH SOMERVELL
STEPHENS TARRANT TRINITY
VAN ZANDT WALKER WISE
WOOD YOUNG
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 375
VALID 111630Z - 111740Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..MEAD..06/11/09
ATTN...WFO...FWD...SHV...HGX...
&&
STATUS REPORT FOR WS 375
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
TXC001-005-035-041-073-085-113-121-139-143-145-161-183-185-213-
217-221-225-231-237-251-257-289-293-309-313-347-349-363-367-373-
379-395-397-401-405-407-423-425-429-439-455-467-471-497-499-503-
111740-
TX
. TEXAS COUNTIES INCLUDED ARE
ANDERSON ANGELINA BOSQUE
BRAZOS CHEROKEE COLLIN
DALLAS DENTON ELLIS
ERATH FALLS FREESTONE
GREGG GRIMES HENDERSON
HILL HOOD HOUSTON
HUNT JACK JOHNSON
KAUFMAN LEON LIMESTONE
MCLENNAN MADISON NACOGDOCHES
NAVARRO PALO PINTO PARKER
POLK RAINS ROBERTSON
ROCKWALL RUSK SAN AUGUSTINE
SAN JACINTO SMITH SOMERVELL
STEPHENS TARRANT TRINITY
VAN ZANDT WALKER WISE
WOOD YOUNG
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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 (30%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (30%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (30%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Mod (30%)
|
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.