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 380
NWS STORM PREDICTION CENTER NORMAN OK
200 PM MDT THU JUN 11 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
EASTERN COLORADO
THE EXTREME WESTERN OKLAHOMA PANHANDLE
EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 200 PM UNTIL
900 PM MDT.
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 EAST AND WEST OF A LINE FROM 45 MILES EAST NORTHEAST OF
DENVER COLORADO TO 45 MILES SOUTHWEST OF ELKHART KANSAS. 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 375...WW 376...WW
377...WW 378...WW 379...
DISCUSSION...ONGOING STORMS E/SE OF DENVER WILL LIKELY PERSIST
THROUGH THE AFTERNOON...WHILE ADDITIONAL STORMS FORM FARTHER S INVOF
THE HIGH TERRAIN DOWN TO THE RATON MESA. A RELATIVELY MOIST UPSLOPE
FLOW OF LOW 50S DEW POINTS AND AFTERNOON TEMPERATURES IN THE 60S/LOW
70S WILL SUPPORT MLCAPE VALUES UP TO 1000 J/KG. AT THE SAME
TIME...DEEP LAYER VERTICAL SHEAR AND LIFT WILL INCREASE OVER CO WITH
THE APPROACH OF A LEAD SHORTWAVE TROUGH EJECTING ENEWD AHEAD OF THE
MAIN TROUGH OVER UT/NRN AZ. THESE FACTORS WILL CONTRIBUTE TO
INCREASING THUNDERSTORM COVERAGE AND THE POTENTIAL FOR SUPERCELLS
CAPABLE OF PRODUCING LARGE HAIL/DAMAGING WINDS...AND A COUPLE OF
TORNADOES.
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
450. MEAN STORM MOTION VECTOR 28020.
...THOMPSON
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0
WW 380 TORNADO CO OK 112000Z - 120300Z
AXIS..50 STATUTE MILES EAST AND WEST OF LINE..
45ENE DEN/DENVER CO/ - 45SW EHA/ELKHART KS/
..AVIATION COORDS.. 45NM E/W /29ENE DEN - 70SE TBE/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 28020.
LAT...LON 40000315 36520156 36520337 40000504
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 380 Status Report Messages:
STATUS REPORT #4 ON WW 380
VALID 120110Z - 120240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 ESE PUB
TO 30 SSE LIC TO 30 SSW ITR.
..GUYER..06/12/09
ATTN...WFO...BOU...PUB...AMA...
&&
STATUS REPORT FOR WT 380
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC009-011-025-055-061-071-073-089-099-120240-
CO
. COLORADO COUNTIES INCLUDED ARE
BACA BENT CROWLEY
HUERFANO KIOWA LAS ANIMAS
LINCOLN OTERO PROWERS
$$
OKC025-120240-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
CIMARRON
$$
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.
$$
STATUS REPORT #3 ON WW 380
VALID 112355Z - 120040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 20 NNE COS
TO 40 WSW AKO.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1061
..GUYER..06/11/09
ATTN...WFO...BOU...PUB...AMA...
&&
STATUS REPORT FOR WT 380
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC009-011-025-039-041-055-061-071-073-087-089-099-101-121-
120040-
CO
. COLORADO COUNTIES INCLUDED ARE
BACA BENT CROWLEY
ELBERT EL PASO HUERFANO
KIOWA LAS ANIMAS LINCOLN
MORGAN OTERO PROWERS
PUEBLO WASHINGTON
$$
OKC025-120040-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
CIMARRON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 380
VALID 112330Z - 120040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..GUYER..06/11/09
ATTN...WFO...BOU...PUB...AMA...
&&
STATUS REPORT FOR WT 380
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC001-005-009-011-025-039-041-055-061-071-073-087-089-099-101-
121-120040-
CO
. COLORADO COUNTIES INCLUDED ARE
ADAMS ARAPAHOE BACA
BENT CROWLEY ELBERT
EL PASO HUERFANO KIOWA
LAS ANIMAS LINCOLN MORGAN
OTERO PROWERS PUEBLO
WASHINGTON
$$
OKC025-120040-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
CIMARRON
$$
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.
$$
STATUS REPORT #1 ON WW 380
VALID 112155Z - 112240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..GUYER..06/11/09
ATTN...WFO...BOU...PUB...AMA...
&&
STATUS REPORT FOR WT 380
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC001-005-009-011-025-039-041-055-061-071-073-087-089-099-101-
121-112240-
CO
. COLORADO COUNTIES INCLUDED ARE
ADAMS ARAPAHOE BACA
BENT CROWLEY ELBERT
EL PASO HUERFANO KIOWA
LAS ANIMAS LINCOLN MORGAN
OTERO PROWERS PUEBLO
WASHINGTON
$$
OKC025-112240-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
CIMARRON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Mod (50%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (20%)
|
Wind
Probability of 10 or more severe wind events
|
Low (20%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
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.