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The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
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Watch Status Reports.
SEL4
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 264
NWS STORM PREDICTION CENTER NORMAN OK
1205 AM CDT FRI MAY 8 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
A LARGE PART OF KANSAS
NORTHERN OKLAHOMA
EFFECTIVE THIS FRIDAY MORNING FROM 1205 AM UNTIL 800 AM CDT.
...THIS IS A PARTICULARLY DANGEROUS SITUATION...
EXTREMELY DAMAGING THUNDERSTORM WIND GUSTS TO 80 MPH...LARGE HAIL
TO 3 INCHES IN DIAMETER...AND DANGEROUS LIGHTNING ARE POSSIBLE IN
THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 55 MILES WEST OF
GARDEN CITY KANSAS TO 25 MILES EAST SOUTHEAST OF CHANUTE KANSAS.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU4).
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 260...WW 261...WW
262...WW 263...
DISCUSSION...TSTMS/SUPERCELLS EXPECTED TO FORM IN THE NEXT 1-2 HOURS
IN WAA AREA ALONG SRN FRINGE OF UPR DISTURBANCE AMPLIFYING ESE
ACROSS THE CNTRL HI PLNS. COMBINATION OF INCREASINGLY RICH MOIST
INFLOW...DEEP EML...AND SEASONABLY STRONG/LARGELY UNIDIRECTIONAL WLY
MID/UPR LVL FLOW SHOULD SUPPORT RAPID STORM INTENSIFICATION ONCE
CELLS FORM. ALTHOUGH A RISK FOR ISOLD TORNADOES WILL EXIST DURING
EARLY STAGES OF STORM DEVELOPMENT...SFC-BASED CIN AND LIKELIHOOD FOR
NUMEROUS STORM INTERACTIONS ONCE ACTIVITY DEVELOPS SUGGEST THAT MAIN
SVR THREAT EARLY-ON WILL BE VERY LARGE HAIL. SIZABLE DCAPE SHOULD
FOSTER SUBSEQUENT EVOLUTION INTO A FORWARD-PROPGATING MCS...WITH
FAIRLY WIDESPREAD DMGG WIND/HAIL.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
MOTION VECTOR 29035.
...CORFIDI
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW4
WW 264 SEVERE TSTM KS OK 080505Z - 081300Z
AXIS..80 STATUTE MILES NORTH AND SOUTH OF LINE..
55W GCK/GARDEN CITY KS/ - 25ESE CNU/CHANUTE KS/
..AVIATION COORDS.. 70NM N/S /47W GCK - 24NNE OSW/
HAIL SURFACE AND ALOFT..3 INCHES. WIND GUSTS..70 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 29035.
LAT...LON 39080173 38689505 36369505 36770173
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU4.
Watch 264 Status Report Messages:
STATUS REPORT #2 ON WW 264
VALID 081055Z - 081140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 SE AVK TO
30 NNW PNC TO 50 SSW EMP TO 10 W EMP TO 25 SW OJC.
..SPC..05/08/09
ATTN...WFO...ICT...TOP...DDC...OUN...TSA...
&&
STATUS REPORT FOR WS 264
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC001-003-019-031-035-049-059-073-099-111-125-133-191-205-207-
081140-
KS
. KANSAS COUNTIES INCLUDED ARE
ALLEN ANDERSON CHAUTAUQUA
COFFEY COWLEY ELK
FRANKLIN GREENWOOD LABETTE
LYON MONTGOMERY NEOSHO
SUMNER WILSON WOODSON
$$
OKC003-053-071-103-081140-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ALFALFA GRANT KAY
NOBLE
$$
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.
$$
STATUS REPORT #1 ON WW 264
VALID 080635Z - 080740Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SPC..05/08/09
ATTN...WFO...ICT...TOP...DDC...OUN...TSA...
&&
STATUS REPORT FOR WS 264
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC001-003-007-009-015-017-019-025-031-033-035-041-047-049-051-
053-055-057-059-067-069-073-075-077-079-081-083-093-095-097-099-
101-105-111-113-115-119-125-127-133-135-139-143-145-151-155-159-
165-167-169-171-173-175-185-189-191-195-205-207-080740-
KS
. KANSAS COUNTIES INCLUDED ARE
ALLEN ANDERSON BARBER
BARTON BUTLER CHASE
CHAUTAUQUA CLARK COFFEY
COMANCHE COWLEY DICKINSON
EDWARDS ELK ELLIS
ELLSWORTH FINNEY FORD
FRANKLIN GRANT GRAY
GREENWOOD HAMILTON HARPER
HARVEY HASKELL HODGEMAN
KEARNY KINGMAN KIOWA
LABETTE LANE LINCOLN
LYON MCPHERSON MARION
MEADE MONTGOMERY MORRIS
NEOSHO NESS OSAGE
OTTAWA PAWNEE PRATT
RENO RICE RUSH
RUSSELL SALINE SCOTT
SEDGWICK SEWARD STAFFORD
STEVENS SUMNER TREGO
WILSON WOODSON
$$
OKC003-035-053-071-097-103-105-113-117-131-143-147-151-080740-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
ALFALFA CRAIG GRANT
KAY MAYES NOBLE
NOWATA OSAGE PAWNEE
ROGERS TULSA WASHINGTON
WOODS
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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 (10%)
|
Wind
Probability of 10 or more severe wind events
|
High (>95%)
|
Probability of 1 or more wind events > 65 knots
|
High (70%)
|
Hail
Probability of 10 or more severe hail events
|
High (>95%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Mod (50%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (>95%)
|
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.