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
Severe Thunderstorm Watch Number 611
NWS Storm Prediction Center Norman OK
215 PM MDT Wed Aug 7 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northeast Colorado
Far Northwest Kansas
Western Nebraska
Far Southeast Wyoming
* Effective this Wednesday afternoon and evening from 215 PM
until 1000 PM MDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
SUMMARY...Thunderstorm development is expected to continue across
the southeastern Wyoming and northeastern Colorado, with these
storms then moving downstream into western Nebraska and far
northwest Kansas. The environment supports large hail with the
early, more cellular storms, with a trend towards a more linear mode
anticipated thereafter. Damaging gusts are the more likely threat as
the line of storms moves into western Nebraska and far northwest
Kansas.
The severe thunderstorm watch area is approximately along and 65
statute miles north and south of a line from 25 miles south
southwest of Cheyenne WY to Mccook NE. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU1).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 610...
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.
...Mosier
SEL1
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 611
NWS Storm Prediction Center Norman OK
215 PM MDT Wed Aug 7 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northeast Colorado
Far Northwest Kansas
Western Nebraska
Far Southeast Wyoming
* Effective this Wednesday afternoon and evening from 215 PM
until 1000 PM MDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
SUMMARY...Thunderstorm development is expected to continue across
the southeastern Wyoming and northeastern Colorado, with these
storms then moving downstream into western Nebraska and far
northwest Kansas. The environment supports large hail with the
early, more cellular storms, with a trend towards a more linear mode
anticipated thereafter. Damaging gusts are the more likely threat as
the line of storms moves into western Nebraska and far northwest
Kansas.
The severe thunderstorm watch area is approximately along and 65
statute miles north and south of a line from 25 miles south
southwest of Cheyenne WY to Mccook NE. For a complete depiction of
the watch see the associated watch outline update (WOUS64 KWNS
WOU1).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 610...
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.
...Mosier
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW1
WW 611 SEVERE TSTM CO KS NE WY 072015Z - 080400Z
AXIS..65 STATUTE MILES NORTH AND SOUTH OF LINE..
25SSW CYS/CHEYENNE WY/ - MCK/MCCOOK NE/
..AVIATION COORDS.. 55NM N/S /26SSW CYS - MCK/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 27035.
LAT...LON 41760500 41140058 39250058 39870500
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU1.
Watch 611 Status Report Messages:
STATUS REPORT #3 ON WW 611
VALID 080200Z - 080340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 NW ITR TO
40 N ITR TO 30 WSW IML TO 35 WNW IML TO 25 NNE SNY.
..SPC..08/08/24
ATTN...WFO...GLD...BOU...LBF...CYS...
&&
STATUS REPORT FOR WS 611
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC063-125-080340-
CO
. COLORADO COUNTIES INCLUDED ARE
KIT CARSON YUMA
$$
KSC023-039-153-179-181-193-080340-
KS
. KANSAS COUNTIES INCLUDED ARE
CHEYENNE DECATUR RAWLINS
SHERIDAN SHERMAN THOMAS
$$
NEC005-029-049-057-063-069-085-087-101-111-117-135-145-080340-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ARTHUR CHASE DEUEL
DUNDY FRONTIER GARDEN
HAYES HITCHCOCK KEITH
LINCOLN MCPHERSON PERKINS
RED WILLOW
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 611
VALID 080000Z - 080140Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SPC..08/07/24
ATTN...WFO...GLD...BOU...LBF...CYS...
&&
STATUS REPORT FOR WS 611
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC063-075-087-095-115-121-123-125-080140-
CO
. COLORADO COUNTIES INCLUDED ARE
KIT CARSON LOGAN MORGAN
PHILLIPS SEDGWICK WASHINGTON
WELD YUMA
$$
KSC023-039-153-179-181-193-080140-
KS
. KANSAS COUNTIES INCLUDED ARE
CHEYENNE DECATUR RAWLINS
SHERIDAN SHERMAN THOMAS
$$
NEC005-007-029-033-049-057-063-069-085-087-101-105-111-117-123-
135-145-157-080140-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ARTHUR BANNER CHASE
CHEYENNE DEUEL DUNDY
FRONTIER GARDEN HAYES
HITCHCOCK KEITH KIMBALL
LINCOLN MCPHERSON MORRILL
PERKINS RED WILLOW SCOTTS BLUFF
$$
WYC021-080140-
WY
. WYOMING COUNTIES INCLUDED ARE
LARAMIE
$$
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.
$$
STATUS REPORT #1 ON WW 611
VALID 072150Z - 072240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SPC..08/07/24
ATTN...WFO...GLD...BOU...LBF...CYS...
&&
STATUS REPORT FOR WS 611
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC063-075-087-095-115-121-123-125-072240-
CO
. COLORADO COUNTIES INCLUDED ARE
KIT CARSON LOGAN MORGAN
PHILLIPS SEDGWICK WASHINGTON
WELD YUMA
$$
KSC023-039-153-179-181-193-072240-
KS
. KANSAS COUNTIES INCLUDED ARE
CHEYENNE DECATUR RAWLINS
SHERIDAN SHERMAN THOMAS
$$
NEC005-007-029-033-049-057-063-069-085-087-101-105-111-117-123-
135-145-157-072240-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ARTHUR BANNER CHASE
CHEYENNE DEUEL DUNDY
FRONTIER GARDEN HAYES
HITCHCOCK KEITH KIMBALL
LINCOLN MCPHERSON MORRILL
PERKINS RED WILLOW SCOTTS BLUFF
$$
WYC021-072240-
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 (<5%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (60%)
|
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 (90%)
|
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% (EF2-EF5 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.
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