Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 330
NWS STORM PREDICTION CENTER NORMAN OK
325 PM CDT SUN MAY 22 2011
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTHERN ARKANSAS
EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 325 PM UNTIL
1000 PM CDT.
TORNADOES...HAIL TO 2 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 50 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 40 MILES SOUTHWEST OF
HARRISON ARKANSAS TO 15 MILES EAST SOUTHEAST OF JONESBORO
ARKANSAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).
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 322...WW 323...WW
324...WW 325...WW 326...WW 327...WW 328...WW 329...
DISCUSSION...RAPID AIR MASS RECOVERY IS UNDERWAY THROUGH CNTRL AR TO
THE S OF INTENSIFYING STORMS NW OF LIT. CURRENT LIT VWP INDICATES A
STRONGLY SHEARED ENVIRONMENT WITH 0-1 KM SRH OF 250 M2/S2 WHICH WILL
SERVE TO ENHANCE UPDRAFT ROTATION. WHILE LARGE HAIL WILL BE THE
PRIMARY HAZARD WITH ANY SUPERCELLS THAT EVOLVE...TORNADOES WILL BE
POSSIBLE GIVEN THE STRONG LOW-LEVEL SHEAR AND MOIST/LOW LCL AIR
MASS.
AVIATION...TORNADOES AND 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 27030.
...MEAD
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0
WW 330 TORNADO AR 222025Z - 230300Z
AXIS..50 STATUTE MILES NORTH AND SOUTH OF LINE..
40SW HRO/HARRISON AR/ - 15ESE JBR/JONESBORO AR/
..AVIATION COORDS.. 45NM N/S /33SE RZC - 34SE ARG/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 27030.
LAT...LON 36589366 36479040 35029040 35139366
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 330 Status Report Messages:
STATUS REPORT #5 ON WW 330
VALID 230120Z - 230240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..COHEN..05/23/11
ATTN...WFO...LZK...MEG...
&&
STATUS REPORT FOR WT 330
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC005-009-021-023-029-031-035-037-045-049-055-063-065-067-071-
075-089-101-111-115-121-123-129-135-137-141-145-147-230240-
AR
. ARKANSAS COUNTIES INCLUDED ARE
BAXTER BOONE CLAY
CLEBURNE CONWAY CRAIGHEAD
CRITTENDEN CROSS FAULKNER
FULTON GREENE INDEPENDENCE
IZARD JACKSON JOHNSON
LAWRENCE MARION NEWTON
POINSETT POPE RANDOLPH
ST. FRANCIS SEARCY SHARP
STONE VAN BUREN WHITE
WOODRUFF
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 330
VALID 230040Z - 230140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..COHEN..05/23/11
ATTN...WFO...LZK...MEG...
&&
STATUS REPORT FOR WT 330
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC005-009-021-023-029-031-035-037-045-049-055-063-065-067-071-
075-089-101-111-115-121-123-129-135-137-141-145-147-230140-
AR
. ARKANSAS COUNTIES INCLUDED ARE
BAXTER BOONE CLAY
CLEBURNE CONWAY CRAIGHEAD
CRITTENDEN CROSS FAULKNER
FULTON GREENE INDEPENDENCE
IZARD JACKSON JOHNSON
LAWRENCE MARION NEWTON
POINSETT POPE RANDOLPH
ST. FRANCIS SEARCY SHARP
STONE VAN BUREN WHITE
WOODRUFF
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 330
VALID 222335Z - 230040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..COHEN..05/22/11
ATTN...WFO...LZK...MEG...
&&
STATUS REPORT FOR WT 330
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC005-009-021-023-029-031-035-037-045-049-055-063-065-067-071-
075-089-101-111-115-121-123-129-135-137-141-145-147-230040-
AR
. ARKANSAS COUNTIES INCLUDED ARE
BAXTER BOONE CLAY
CLEBURNE CONWAY CRAIGHEAD
CRITTENDEN CROSS FAULKNER
FULTON GREENE INDEPENDENCE
IZARD JACKSON JOHNSON
LAWRENCE MARION NEWTON
POINSETT POPE RANDOLPH
ST. FRANCIS SEARCY SHARP
STONE VAN BUREN WHITE
WOODRUFF
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 330
VALID 222220Z - 222340Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..COHEN..05/22/11
ATTN...WFO...LZK...MEG...
&&
STATUS REPORT FOR WT 330
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC005-009-021-023-029-031-035-037-045-049-055-063-065-067-071-
075-089-101-111-115-121-123-129-135-137-141-145-147-222340-
AR
. ARKANSAS COUNTIES INCLUDED ARE
BAXTER BOONE CLAY
CLEBURNE CONWAY CRAIGHEAD
CRITTENDEN CROSS FAULKNER
FULTON GREENE INDEPENDENCE
IZARD JACKSON JOHNSON
LAWRENCE MARION NEWTON
POINSETT POPE RANDOLPH
ST. FRANCIS SEARCY SHARP
STONE VAN BUREN WHITE
WOODRUFF
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 330
VALID 222125Z - 222240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..COHEN..05/22/11
ATTN...WFO...LZK...MEG...
&&
STATUS REPORT FOR WT 330
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC005-009-021-023-029-031-035-037-045-049-055-063-065-067-071-
075-089-101-111-115-121-123-129-135-137-141-145-147-222240-
AR
. ARKANSAS COUNTIES INCLUDED ARE
BAXTER BOONE CLAY
CLEBURNE CONWAY CRAIGHEAD
CRITTENDEN CROSS FAULKNER
FULTON GREENE INDEPENDENCE
IZARD JACKSON JOHNSON
LAWRENCE MARION NEWTON
POINSETT POPE RANDOLPH
ST. FRANCIS SEARCY SHARP
STONE VAN BUREN WHITE
WOODRUFF
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Mod (40%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (20%)
|
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 (40%)
|
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.