Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
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Watch Status Reports.
SEL6
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 326
NWS STORM PREDICTION CENTER NORMAN OK
150 PM CDT SUN MAY 22 2011
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
CENTRAL OKLAHOMA
NORTH-CENTRAL TEXAS
EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 150 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 70 STATUTE
MILES EAST AND WEST OF A LINE FROM 25 MILES NORTH NORTHWEST OF
MCALESTER OKLAHOMA TO 40 MILES SOUTH SOUTHWEST OF MINERAL WELLS
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 321...WW 322...WW
323...WW 324...WW 325...
DISCUSSION...ISOLATED STORM DEVELOPMENT IS ANTICIPATED ALONG THE
DRYLINE BY LATE AFTERNOON AS CONTINUED DAYTIME HEATING ERODES
REMAINING CONVECTIVE INHIBITION. 18Z FWD SOUNDING SHOWED THAT THE
WARM SECTOR IS ALREADY EXTREMELY UNSTABLE WITH MLCAPE VALUES
APPROACHING 5000 J/KG. THIS DEGREE OF INSTABILITY COUPLED WITH
35-40 KT OF DEEP-LAYER SHEAR WILL SUPPORT INTENSE SUPERCELLS CAPABLE
OF DESTRUCTIVE HAIL. THE THREAT FOR TORNADOES WILL INCREASE THIS
EVENING AS LOW-LEVEL SHEAR INTENSIFIES IN RESPONSE TO THE
DEVELOPMENT OF A SLY LLJ.
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 27020.
...MEAD
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW6
WW 326 TORNADO OK TX 221850Z - 230200Z
AXIS..70 STATUTE MILES EAST AND WEST OF LINE..
25NNW MLC/MCALESTER OK/ - 40SSW MWL/MINERAL WELLS TX/
..AVIATION COORDS.. 60NM E/W /23NNW MLC - 65WNW ACT/
HAIL SURFACE AND ALOFT..4 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 27020.
LAT...LON 35209470 32249712 32249952 35209719
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU6.
Watch 326 Status Report Messages:
STATUS REPORT #6 ON WW 326
VALID 230125Z - 230240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 876
..COHEN..05/23/11
ATTN...WFO...OUN...FWD...
&&
STATUS REPORT FOR WT 326
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC005-013-019-029-049-063-067-069-081-085-095-099-119-123-125-
133-230240-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA BRYAN CARTER
COAL GARVIN HUGHES
JEFFERSON JOHNSTON LINCOLN
LOVE MARSHALL MURRAY
PAYNE PONTOTOC POTTAWATOMIE
SEMINOLE
$$
TXC035-077-085-093-097-113-121-133-143-181-193-217-221-237-251-
333-337-363-367-397-425-429-439-497-503-230240-
TX
. TEXAS COUNTIES INCLUDED ARE
BOSQUE CLAY COLLIN
COMANCHE COOKE DALLAS
DENTON EASTLAND ERATH
GRAYSON HAMILTON HILL
HOOD JACK JOHNSON
MILLS MONTAGUE PALO PINTO
PARKER ROCKWALL SOMERVELL
STEPHENS TARRANT WISE
YOUNG
$$
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.
$$
STATUS REPORT #5 ON WW 326
VALID 230035Z - 230140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..COHEN..05/23/11
ATTN...WFO...OUN...FWD...
&&
STATUS REPORT FOR WT 326
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC005-013-019-029-049-063-067-069-081-085-095-099-119-123-125-
133-230140-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA BRYAN CARTER
COAL GARVIN HUGHES
JEFFERSON JOHNSTON LINCOLN
LOVE MARSHALL MURRAY
PAYNE PONTOTOC POTTAWATOMIE
SEMINOLE
$$
TXC035-077-085-093-097-113-121-133-143-181-193-217-221-237-251-
333-337-363-367-397-425-429-439-497-503-230140-
TX
. TEXAS COUNTIES INCLUDED ARE
BOSQUE CLAY COLLIN
COMANCHE COOKE DALLAS
DENTON EASTLAND ERATH
GRAYSON HAMILTON HILL
HOOD JACK JOHNSON
MILLS MONTAGUE PALO PINTO
PARKER ROCKWALL SOMERVELL
STEPHENS TARRANT WISE
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 #4 ON WW 326
VALID 222335Z - 230040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..COHEN..05/22/11
ATTN...WFO...OUN...FWD...
&&
STATUS REPORT FOR WT 326
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC005-013-019-029-049-063-067-069-081-085-095-099-119-123-125-
133-230040-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA BRYAN CARTER
COAL GARVIN HUGHES
JEFFERSON JOHNSTON LINCOLN
LOVE MARSHALL MURRAY
PAYNE PONTOTOC POTTAWATOMIE
SEMINOLE
$$
TXC077-085-097-113-121-133-143-181-221-237-251-337-363-367-397-
425-429-439-497-503-230040-
TX
. TEXAS COUNTIES INCLUDED ARE
CLAY COLLIN COOKE
DALLAS DENTON EASTLAND
ERATH GRAYSON HOOD
JACK JOHNSON MONTAGUE
PALO PINTO PARKER ROCKWALL
SOMERVELL STEPHENS TARRANT
WISE YOUNG
$$
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.
$$
STATUS REPORT #3 ON WW 326
VALID 222230Z - 222340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..COHEN..05/22/11
ATTN...WFO...OUN...FWD...
&&
STATUS REPORT FOR WT 326
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC005-013-019-029-049-063-067-069-081-085-095-099-119-123-125-
133-222340-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA BRYAN CARTER
COAL GARVIN HUGHES
JEFFERSON JOHNSTON LINCOLN
LOVE MARSHALL MURRAY
PAYNE PONTOTOC POTTAWATOMIE
SEMINOLE
$$
TXC077-085-097-113-121-133-143-181-221-237-251-337-363-367-397-
425-429-439-497-503-222340-
TX
. TEXAS COUNTIES INCLUDED ARE
CLAY COLLIN COOKE
DALLAS DENTON EASTLAND
ERATH GRAYSON HOOD
JACK JOHNSON MONTAGUE
PALO PINTO PARKER ROCKWALL
SOMERVELL STEPHENS TARRANT
WISE 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 326
VALID 222135Z - 222240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 861
..COHEN..05/22/11
ATTN...WFO...OUN...FWD...
&&
STATUS REPORT FOR WT 326
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC005-013-019-029-049-063-067-069-081-085-095-099-119-123-125-
133-222240-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA BRYAN CARTER
COAL GARVIN HUGHES
JEFFERSON JOHNSTON LINCOLN
LOVE MARSHALL MURRAY
PAYNE PONTOTOC POTTAWATOMIE
SEMINOLE
$$
TXC077-085-097-113-121-133-143-181-221-237-251-337-363-367-397-
425-429-439-497-503-222240-
TX
. TEXAS COUNTIES INCLUDED ARE
CLAY COLLIN COOKE
DALLAS DENTON EASTLAND
ERATH GRAYSON HOOD
JACK JOHNSON MONTAGUE
PALO PINTO PARKER ROCKWALL
SOMERVELL STEPHENS TARRANT
WISE YOUNG
$$
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.
$$
STATUS REPORT #1 ON WW 326
VALID 222020Z - 222140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..GRAMS..05/22/11
ATTN...WFO...OUN...FWD...
&&
STATUS REPORT FOR WT 326
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
OKC005-013-019-029-049-063-067-069-081-085-095-099-119-123-125-
133-222140-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ATOKA BRYAN CARTER
COAL GARVIN HUGHES
JEFFERSON JOHNSTON LINCOLN
LOVE MARSHALL MURRAY
PAYNE PONTOTOC POTTAWATOMIE
SEMINOLE
$$
TXC077-085-097-113-121-133-143-181-221-237-251-337-363-367-397-
425-429-439-497-503-222140-
TX
. TEXAS COUNTIES INCLUDED ARE
CLAY COLLIN COOKE
DALLAS DENTON EASTLAND
ERATH GRAYSON HOOD
JACK JOHNSON MONTAGUE
PALO PINTO PARKER ROCKWALL
SOMERVELL STEPHENS TARRANT
WISE 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
|
Mod (50%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Mod (40%)
|
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
|
High (70%)
|
Probability
of 1 or
more hailstones > 2 inches
|
High (90%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (80%)
|
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.