Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL1
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 221
NWS STORM PREDICTION CENTER NORMAN OK
510 PM CDT TUE APR 26 2011
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
PARTS OF NORTHERN ARKANSAS
PARTS OF EASTERN OKLAHOMA
EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 510 PM UNTIL
1000 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 55 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 25 MILES SOUTHWEST OF
MCALESTER OKLAHOMA TO 10 MILES EAST NORTHEAST OF BATESVILLE
ARKANSAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).
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 213...WW 214...WW
215...WW 216...WW 217...WW 218...WW 219...WW 220...
DISCUSSION...SEVERE THUNDERSTORMS INCLUDING SUPERCELLS ARE
DEVELOPING VICINITY WARM FRONTAL ZONE ACROSS THE WATCH. WITH SHEAR
CONTINUING TO INCREASE SUPERCELLS WILL INCLUDE BOTH LARGE HAIL AND
TORNADO THREAT.
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 24035.
...HALES
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW1
WW 221 TORNADO AR OK 262210Z - 270300Z
AXIS..55 STATUTE MILES NORTH AND SOUTH OF LINE..
25SW MLC/MCALESTER OK/ - 10ENE BVX/BATESVILLE AR/
..AVIATION COORDS.. 50NM N/S /20SW MLC - 33SW ARG/
HAIL SURFACE AND ALOFT..3 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 24035.
LAT...LON 35419608 36589148 34999148 33839608
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU1.
Watch 221 Status Report Messages:
STATUS REPORT #4 ON WW 221
VALID 270155Z - 270240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 ENE DUA
TO 25 WSW RKR TO 30 NE FSM TO 20 SSE HRO TO 15 ENE HRO.
..DEAN..04/27/11
ATTN...WFO...LZK...TSA...
&&
STATUS REPORT FOR WT 221
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC005-023-029-047-049-063-065-071-083-105-115-127-129-131-135-
137-141-149-270240-
AR
. ARKANSAS COUNTIES INCLUDED ARE
BAXTER CLEBURNE CONWAY
FRANKLIN FULTON INDEPENDENCE
IZARD JOHNSON LOGAN
PERRY POPE SCOTT
SEARCY SEBASTIAN SHARP
STONE VAN BUREN YELL
$$
OKC023-079-127-270240-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
CHOCTAW LE FLORE PUSHMATAHA
$$
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.
$$
STATUS REPORT #3 ON WW 221
VALID 270040Z - 270140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 601
..DEAN..04/27/11
ATTN...WFO...LZK...TSA...
&&
STATUS REPORT FOR WT 221
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC005-023-029-033-047-049-063-065-071-083-089-101-105-115-127-
129-131-135-137-141-149-270140-
AR
. ARKANSAS COUNTIES INCLUDED ARE
BAXTER CLEBURNE CONWAY
CRAWFORD FRANKLIN FULTON
INDEPENDENCE IZARD JOHNSON
LOGAN MARION NEWTON
PERRY POPE SCOTT
SEARCY SEBASTIAN SHARP
STONE VAN BUREN YELL
$$
OKC023-061-077-079-121-127-135-270140-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
CHOCTAW HASKELL LATIMER
LE FLORE PITTSBURG PUSHMATAHA
SEQUOYAH
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 221
VALID 262350Z - 270040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 601
..DEAN..04/26/11
ATTN...WFO...LZK...TSA...
&&
STATUS REPORT FOR WT 221
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC005-023-029-033-047-049-063-065-071-083-089-101-105-115-127-
129-131-135-137-141-149-270040-
AR
. ARKANSAS COUNTIES INCLUDED ARE
BAXTER CLEBURNE CONWAY
CRAWFORD FRANKLIN FULTON
INDEPENDENCE IZARD JOHNSON
LOGAN MARION NEWTON
PERRY POPE SCOTT
SEARCY SEBASTIAN SHARP
STONE VAN BUREN YELL
$$
OKC023-061-077-079-121-127-135-270040-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
CHOCTAW HASKELL LATIMER
LE FLORE PITTSBURG PUSHMATAHA
SEQUOYAH
$$
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.
$$
STATUS REPORT #1 ON WW 221
VALID 262240Z - 262340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..EDWARDS..04/26/11
ATTN...WFO...LZK...TSA...
&&
STATUS REPORT FOR WT 221
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC005-023-029-033-047-049-063-065-071-083-089-101-105-115-127-
129-131-135-137-141-149-262340-
AR
. ARKANSAS COUNTIES INCLUDED ARE
BAXTER CLEBURNE CONWAY
CRAWFORD FRANKLIN FULTON
INDEPENDENCE IZARD JOHNSON
LOGAN MARION NEWTON
PERRY POPE SCOTT
SEARCY SEBASTIAN SHARP
STONE VAN BUREN YELL
$$
OKC023-061-077-079-121-127-135-262340-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
CHOCTAW HASKELL LATIMER
LE FLORE PITTSBURG PUSHMATAHA
SEQUOYAH
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Mod (60%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Mod (30%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (50%)
|
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
|
Mod (30%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (90%)
|
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.