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
SEVERE THUNDERSTORM WATCH NUMBER 346
NWS STORM PREDICTION CENTER NORMAN OK
825 PM CDT SUN JUN 7 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTH CENTRAL KANSAS
SOUTH CENTRAL NEBRASKA
EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 825 PM UNTIL
200 AM 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 70
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 65 MILES NORTHWEST
OF RUSSELL KANSAS TO 60 MILES NORTH NORTHEAST OF CONCORDIA
KANSAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).
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 342...WW 343...WW
344...WW 345...
DISCUSSION...STRONG UPPER FORCING IS SPREADING EASTWARD ACROSS
NORTHWEST KS...AND WILL IMPINGE ON THE WEST EDGE OF STRONG
INSTABILITY IN THE NEXT COUPLE OF HOURS. THIS SHOULD RESULT IN THE
INTENSIFICATION OF STRONG TO SEVERE STORMS THAT TRACK EASTWARD
ACROSS THE WATCH AREA. DAMAGING WINDS AND HAIL WILL BE POSSIBLE
WITH STRONGER CELLS.
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 500. MEAN STORM
MOTION VECTOR 27035.
...HART
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW6
WW 346 SEVERE TSTM KS NE 080125Z - 080700Z
AXIS..70 STATUTE MILES NORTH AND SOUTH OF LINE..
65NW RSL/RUSSELL KS/ - 60NNE CNK/CONCORDIA KS/
..AVIATION COORDS.. 60NM N/S /30ENE HLC - 47W PWE/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 27035.
LAT...LON 40549968 41349720 39339720 38509968
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU6.
Watch 346 Status Report Messages:
STATUS REPORT #1 ON WW 346
VALID 080335Z - 080440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 S HLC TO
55 SSW HSI TO 15 NNE GRI.
..JEWELL..06/08/09
ATTN...WFO...GID...
&&
STATUS REPORT FOR WS 346
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC089-123-141-163-183-080440-
KS
. KANSAS COUNTIES INCLUDED ARE
JEWELL MITCHELL OSBORNE
ROOKS SMITH
$$
NEC001-035-059-061-079-081-121-129-143-169-181-185-080440-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ADAMS CLAY FILLMORE
FRANKLIN HALL HAMILTON
MERRICK NUCKOLLS POLK
THAYER WEBSTER YORK
$$
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 (40%)
|
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
|
Low (20%)
|
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.
weather.gov 
