Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 619
NWS Storm Prediction Center Norman OK
240 PM MDT Sun Aug 11 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northeast Colorado
Northwest Kansas
Western Nebraska
* Effective this Sunday afternoon and evening from 240 PM until
900 PM MDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...Thunderstorms are strengthening across the Nebraska
panhandle and northeast Colorado. This activity will spread
eastward through the afternoon, posing a risk of large hail and
damaging wind gusts.
The severe thunderstorm watch area is approximately along and 50
statute miles east and west of a line from 75 miles north northwest
of Mullen NE to 40 miles south of Burlington CO. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU9).
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 618...
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
29025.
...Hart
SEL9
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 619
NWS Storm Prediction Center Norman OK
240 PM MDT Sun Aug 11 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northeast Colorado
Northwest Kansas
Western Nebraska
* Effective this Sunday afternoon and evening from 240 PM until
900 PM MDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...Thunderstorms are strengthening across the Nebraska
panhandle and northeast Colorado. This activity will spread
eastward through the afternoon, posing a risk of large hail and
damaging wind gusts.
The severe thunderstorm watch area is approximately along and 50
statute miles east and west of a line from 75 miles north northwest
of Mullen NE to 40 miles south of Burlington CO. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU9).
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 618...
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
29025.
...Hart
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW9
WW 619 SEVERE TSTM CO KS NE 112040Z - 120300Z
AXIS..50 STATUTE MILES EAST AND WEST OF LINE..
75NNW MHN/MULLEN NE/ - 40S ITR/BURLINGTON CO/
..AVIATION COORDS.. 45NM E/W /78WNW ANW - 34NE LAA/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 29025.
LAT...LON 43050065 38660135 38660321 43050263
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU9.
Watch 619 Status Report Messages:
STATUS REPORT #3 ON WW 619
VALID 120100Z - 120240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 25 NNE AKO
TO 30 S VTN.
..BROYLES..08/12/24
ATTN...WFO...GLD...BOU...LBF...
&&
STATUS REPORT FOR WS 619
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC017-063-095-115-120240-
CO
. COLORADO COUNTIES INCLUDED ARE
CHEYENNE KIT CARSON PHILLIPS
SEDGWICK
$$
KSC109-181-193-199-120240-
KS
. KANSAS COUNTIES INCLUDED ARE
LOGAN SHERMAN THOMAS
WALLACE
$$
NEC029-091-101-117-135-120240-
NE
. NEBRASKA COUNTIES INCLUDED ARE
CHASE HOOKER KEITH
MCPHERSON PERKINS
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #2 ON WW 619
VALID 112335Z - 120040Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 NNW LAA
TO 25 E AIA TO 60 S PHP.
..BROYLES..08/11/24
ATTN...WFO...GLD...BOU...LBF...
&&
STATUS REPORT FOR WS 619
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC017-063-095-115-125-120040-
CO
. COLORADO COUNTIES INCLUDED ARE
CHEYENNE KIT CARSON PHILLIPS
SEDGWICK YUMA
$$
KSC023-109-153-181-193-199-120040-
KS
. KANSAS COUNTIES INCLUDED ARE
CHEYENNE LOGAN RAWLINS
SHERMAN THOMAS WALLACE
$$
NEC005-029-031-049-057-069-075-087-091-101-117-135-120040-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ARTHUR CHASE CHERRY
DEUEL DUNDY GARDEN
GRANT HITCHCOCK HOOKER
KEITH MCPHERSON PERKINS
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 619
VALID 112140Z - 112240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BROYLES..08/11/24
ATTN...WFO...GLD...BOU...LBF...
&&
STATUS REPORT FOR WS 619
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC017-063-075-095-115-121-125-112240-
CO
. COLORADO COUNTIES INCLUDED ARE
CHEYENNE KIT CARSON LOGAN
PHILLIPS SEDGWICK WASHINGTON
YUMA
$$
KSC023-109-153-181-193-199-112240-
KS
. KANSAS COUNTIES INCLUDED ARE
CHEYENNE LOGAN RAWLINS
SHERMAN THOMAS WALLACE
$$
NEC005-029-031-049-057-069-075-087-091-101-117-135-161-112240-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ARTHUR CHASE CHERRY
DEUEL DUNDY GARDEN
GRANT HITCHCOCK HOOKER
KEITH MCPHERSON PERKINS
SHERIDAN
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Low (20%)
|
Probability of 1 or more strong (EF2-EF5) tornadoes
|
Low (<2%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (50%)
|
Probability of 1 or more wind events > 65 knots
|
Low (20%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (50%)
|
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 (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% (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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