Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL8
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 698
NWS STORM PREDICTION CENTER NORMAN OK
445 PM MDT MON AUG 10 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
CENTRAL AND EASTERN COLORADO
SOUTHERN NEBRASKA PANHANDLE
EXTREME SOUTHEAST WYOMING
EFFECTIVE THIS MONDAY AFTERNOON FROM 445 PM UNTIL MIDNIGHT MDT.
HAIL TO 2.5 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 85
STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES WEST
NORTHWEST OF SIDNEY NEBRASKA TO 35 MILES EAST OF COLORADO SPRINGS
COLORADO. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).
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 695...WW 696...WW 697...
DISCUSSION...SUBTLE SHORTWAVE TROUGH MOVING ACROSS THE CENTRAL HIGH
PLAINS LATE TODAY WILL LIKELY MAINTAIN STRONG TO SEVERE
THUNDERSTORMS EWD ACROSS THE HIGH PLAINS THROUGH THE EVENING. VERY
STEEP LAPSE RATES AND 40-50 KT EFFECTIVE SHEAR WILL SUPPORT
SUPERCELLS WITH THREAT OF LARGE HAIL AND ISOLATED DAMAGING WINDS.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 28025.
...EVANS
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW8
WW 698 SEVERE TSTM CO NE WY 102245Z - 110600Z
AXIS..85 STATUTE MILES EAST AND WEST OF LINE..
20WNW SNY/SIDNEY NE/ - 35E COS/COLORADO SPRINGS CO/
..AVIATION COORDS.. 75NM E/W /17WNW SNY - 36NNE PUB/
HAIL SURFACE AND ALOFT..2.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 28025.
LAT...LON 41200169 38810248 38810565 41200497
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU8.
Watch 698 Status Report Messages:
STATUS REPORT #5 ON WW 698
VALID 110355Z - 110440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 SE LIC TO
35 ENE AKO TO 15 W IML.
..NOAANWS..08/11/09
ATTN...WFO...BOU...GLD...PUB...CYS...
&&
STATUS REPORT FOR WS 698
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC017-025-061-063-125-110440-
CO
. COLORADO COUNTIES INCLUDED ARE
CHEYENNE CROWLEY KIOWA
KIT CARSON YUMA
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #4 ON WW 698
VALID 110300Z - 110440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 W COS TO
15 WNW LIC TO 15 SE AKO TO 30 ENE SNY.
..NOAANWS..08/11/09
ATTN...WFO...BOU...GLD...PUB...CYS...
&&
STATUS REPORT FOR WS 698
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC017-025-041-061-063-073-095-115-125-110440-
CO
. COLORADO COUNTIES INCLUDED ARE
CHEYENNE CROWLEY EL PASO
KIOWA KIT CARSON LINCOLN
PHILLIPS SEDGWICK YUMA
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #3 ON WW 698
VALID 110200Z - 110340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 WNW COS
TO 35 WNW LIC TO 10 N SNY.
..ZAZ..08/11/09
ATTN...WFO...BOU...GLD...PUB...CYS...
&&
STATUS REPORT FOR WS 698
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC017-039-041-063-073-075-095-115-119-121-125-110340-
CO
. COLORADO COUNTIES INCLUDED ARE
CHEYENNE ELBERT EL PASO
KIT CARSON LINCOLN LOGAN
PHILLIPS SEDGWICK TELLER
WASHINGTON YUMA
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 698
VALID 110105Z - 110240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 50 WNW COS
TO 35 WNW LIC TO 30 NW AKO TO 25 WNW SNY.
..NOAANWS..08/11/09
ATTN...WFO...BOU...GLD...PUB...CYS...
&&
STATUS REPORT FOR WS 698
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC017-035-039-041-063-073-075-087-095-115-119-121-125-110240-
CO
. COLORADO COUNTIES INCLUDED ARE
CHEYENNE DOUGLAS ELBERT
EL PASO KIT CARSON LINCOLN
LOGAN MORGAN PHILLIPS
SEDGWICK TELLER WASHINGTON
YUMA
$$
NEC105-110240-
NE
. NEBRASKA COUNTIES INCLUDED ARE
KIMBALL
$$
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.
$$
STATUS REPORT #1 ON WW 698
VALID 102355Z - 110040Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..ZZZ..08/10/09
ATTN...WFO...BOU...GLD...PUB...CYS...
&&
STATUS REPORT FOR WS 698
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC001-005-014-017-031-035-039-041-063-073-075-087-095-115-119-
121-123-125-110040-
CO
. COLORADO COUNTIES INCLUDED ARE
ADAMS ARAPAHOE BROOMFIELD
CHEYENNE DENVER DOUGLAS
ELBERT EL PASO KIT CARSON
LINCOLN LOGAN MORGAN
PHILLIPS SEDGWICK TELLER
WASHINGTON WELD YUMA
$$
NEC105-110040-
NE
. NEBRASKA COUNTIES INCLUDED ARE
KIMBALL
$$
WYC021-110040-
WY
. WYOMING COUNTIES INCLUDED ARE
LARAMIE
$$
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
|
Low (20%)
|
Probability of 1 or more wind events > 65 knots
|
Low (10%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (50%)
|
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 (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.