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 341
NWS STORM PREDICTION CENTER NORMAN OK
215 PM CDT FRI MAY 23 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
PARTS OF EASTERN COLORADO
LARGE PART OF WESTERN KANSAS
PARTS OF SOUTHWESTERN NEBRASKA
EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 215 PM UNTIL
1000 PM CDT.
...THIS IS A PARTICULARLY DANGEROUS SITUATION...
DESTRUCTIVE TORNADOES...LARGE HAIL TO 4 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE
MILES EAST AND WEST OF A LINE FROM 20 MILES EAST NORTHEAST OF
IMPERIAL NEBRASKA TO 40 MILES WEST SOUTHWEST OF MEDICINE LODGE
KANSAS. 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 340...
DISCUSSION...VERY UNSTABLE PER 18Z DDC SOUNDING WITH LITTLE
REMAINING CINH IN WARM SECTOR. E/W SURFACE BOUNDARY WILL FOCUS RAPID
DEVELOPMENT OF TORNADIC SUPERCELLS NEAR INTERSECTION OF N/S DRY LINE
IN WRN KS. WITH VERY STRONG SHEAR POTENTIAL FOR LONG LIVED
SUPERCELLS AND STRONG TORNADOES AS STORMS MOVE RAPIDLY NWD AHEAD OF
APPROACHING UPPER TROUGH/WIND MAX.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 4 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 19040.
...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 341 TORNADO CO KS NE 231915Z - 240300Z
AXIS..80 STATUTE MILES EAST AND WEST OF LINE..
20ENE IML/IMPERIAL NE/ - 40WSW P28/MEDICINE LODGE KS/
..AVIATION COORDS.. 70NM E/W /39SW LBF - 53NE GAG/
HAIL SURFACE AND ALOFT..4 INCHES. WIND GUSTS..70 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 19040.
LAT...LON 40619973 37069780 37060069 40610279
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU1.
Watch 341 Status Report Message has not been issued yet.
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
High (>95%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
High (70%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (60%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (60%)
|
Hail
Probability of 10 or more severe hail events
|
High (>95%)
|
Probability
of 1 or
more hailstones > 2 inches
|
High (80%)
|
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.
weather.gov 
