Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL7
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 337
NWS STORM PREDICTION CENTER NORMAN OK
440 PM CDT SAT JUN 6 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHWEST OKLAHOMA
NORTHWEST TEXAS
EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 440 PM UNTIL
1100 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 75
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 85 MILES SOUTHWEST
OF CHILDRESS TEXAS TO 30 MILES SOUTHEAST OF FORT SILL OKLAHOMA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU7).
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.
DISCUSSION...A CLUSTER OF HIGH-BASED THUNDERSTORMS IS DEVELOPING
ACROSS NORTHWEST TX...WHERE HOT SURFACE TEMPERATURES HAVE HELPED TO
INITIATE CONVECTION. THESE STORMS ARE LIKELY TO MAINTAIN INTENSITY
AND TRACK/DEVELOP SLOWLY NORTHEASTWARD INTO SOUTHWEST OK DURING THE
NEXT FEW HOURS WITH A RISK 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 550. MEAN STORM
MOTION VECTOR 24020.
...HART
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW7
WW 337 SEVERE TSTM OK TX 062140Z - 070400Z
AXIS..75 STATUTE MILES NORTH AND SOUTH OF LINE..
85SW CDS/CHILDRESS TX/ - 30SE FSI/FORT SILL OK/
..AVIATION COORDS.. 65NM N/S /31ESE LBB - 35NE SPS/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 24020.
LAT...LON 34630131 35439802 33259802 32470131
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU7.
Watch 337 Status Report Messages:
STATUS REPORT #4 ON WW 337
VALID 070320Z - 070400Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 SSW SPS
TO 60 N ABI TO 65 SSW CDS TO 45 SSW CDS TO 40 SSE CDS TO 20 SE
CDS TO 30 WSW LTS TO 10 WSW CSM.
WW 337 WILL BE ALLOWED TO EXPIRE AT 070400Z.
..JEWELL..06/07/09
ATTN...WFO...OUN...LUB...SJT...
&&
STATUS REPORT FOR WS 337
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC031-033-065-075-141-070400-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
COMANCHE COTTON JACKSON
KIOWA TILLMAN
$$
TXC009-023-077-155-207-269-275-447-485-487-070400-
TX
. TEXAS COUNTIES INCLUDED ARE
ARCHER BAYLOR CLAY
FOARD HASKELL KING
KNOX THROCKMORTON WICHITA
WILBARGER
$$
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.
$$
STATUS REPORT #3 ON WW 337
VALID 070220Z - 070340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 ENE BGS
TO 50 SSW CDS TO 40 SSE CDS TO 20 SE CDS TO 30 E CDS TO 15 SW CSM.
..JEWELL..06/07/09
ATTN...WFO...OUN...LUB...SJT...
&&
STATUS REPORT FOR WS 337
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC031-033-065-075-141-070340-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
COMANCHE COTTON JACKSON
KIOWA TILLMAN
$$
TXC009-023-077-151-155-207-253-269-275-433-447-485-487-070340-
TX
. TEXAS COUNTIES INCLUDED ARE
ARCHER BAYLOR CLAY
FISHER FOARD HASKELL
JONES KING KNOX
STONEWALL THROCKMORTON WICHITA
WILBARGER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 337
VALID 070145Z - 070240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 N BGS TO
45 SE CDS TO 10 SE CSM.
..BROYLES..06/07/09
ATTN...WFO...OUN...LUB...SJT...
&&
STATUS REPORT FOR WS 337
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC031-033-065-075-141-070240-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
COMANCHE COTTON JACKSON
KIOWA TILLMAN
$$
TXC009-023-077-151-155-207-253-263-269-275-433-447-485-487-
070240-
TX
. TEXAS COUNTIES INCLUDED ARE
ARCHER BAYLOR CLAY
FISHER FOARD HASKELL
JONES KENT KING
KNOX STONEWALL THROCKMORTON
WICHITA WILBARGER
$$
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.
$$
STATUS REPORT #1 ON WW 337
VALID 070035Z - 070140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 ENE LBB
TO 35 SSE CDS TO 45 NNE CDS.
..BROYLES..06/07/09
ATTN...WFO...OUN...LUB...SJT...
&&
STATUS REPORT FOR WS 337
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC031-033-055-057-065-075-141-070140-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
COMANCHE COTTON GREER
HARMON JACKSON KIOWA
TILLMAN
$$
TXC009-023-077-107-125-151-155-169-197-207-253-263-269-275-433-
447-485-487-070140-
TX
. TEXAS COUNTIES INCLUDED ARE
ARCHER BAYLOR CLAY
CROSBY DICKENS FISHER
FOARD GARZA HARDEMAN
HASKELL JONES KENT
KING KNOX STONEWALL
THROCKMORTON WICHITA WILBARGER
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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
|
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.