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
Severe Thunderstorm Watch Number 620
NWS Storm Prediction Center Norman OK
450 PM MDT Tue Aug 13 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
East-central and northeastern Colorado
Northwestern Kansas
Southwestern Nebraska
* Effective this Tuesday afternoon and Wednesday morning from 450
PM until 100 AM MDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Isolated very large hail events to 2 inches in diameter possible
A tornado or two possible
SUMMARY...Initially widely scattered strong-severe thunderstorms
east of the Front Range should become denser in coverage and
organize into one or more clusters, with increasing severe potential
over the next several hours as the activity moves eastward across
the High Plains, into greater moisture.
The severe thunderstorm watch area is approximately along and 80
statute miles north and south of a line from 45 miles west northwest
of Akron CO to 25 miles northeast of Mccook NE. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU0).
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.
&&
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 550. Mean storm motion vector
27030.
...Edwards
SEL0
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 620
NWS Storm Prediction Center Norman OK
450 PM MDT Tue Aug 13 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
East-central and northeastern Colorado
Northwestern Kansas
Southwestern Nebraska
* Effective this Tuesday afternoon and Wednesday morning from 450
PM until 100 AM MDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph likely
Isolated very large hail events to 2 inches in diameter possible
A tornado or two possible
SUMMARY...Initially widely scattered strong-severe thunderstorms
east of the Front Range should become denser in coverage and
organize into one or more clusters, with increasing severe potential
over the next several hours as the activity moves eastward across
the High Plains, into greater moisture.
The severe thunderstorm watch area is approximately along and 80
statute miles north and south of a line from 45 miles west northwest
of Akron CO to 25 miles northeast of Mccook NE. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU0).
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.
&&
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 550. Mean storm motion vector
27030.
...Edwards
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW0
WW 620 SEVERE TSTM CO KS NE 132250Z - 140700Z
AXIS..80 STATUTE MILES NORTH AND SOUTH OF LINE..
45WNW AKO/AKRON CO/ - 25NE MCK/MCCOOK NE/
..AVIATION COORDS.. 70NM N/S /41WNW AKO - 22NE MCK/
HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 27030.
LAT...LON 41580401 41610024 39300024 39270401
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.
Watch 620 Status Report Messages:
STATUS REPORT #5 ON WW 620
VALID 140435Z - 140540Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 S ITR TO
35 WSW MCK TO 15 WNW MCK TO 35 NNW MCK TO 30 W LBF TO 45 SW MHN.
..BROYLES..08/14/24
ATTN...WFO...BOU...GLD...LBF...CYS...
&&
STATUS REPORT FOR WS 620
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC023-039-109-137-153-179-181-193-199-140540-
KS
. KANSAS COUNTIES INCLUDED ARE
CHEYENNE DECATUR LOGAN
NORTON RAWLINS SHERIDAN
SHERMAN THOMAS WALLACE
$$
NEC029-057-063-085-087-111-135-145-140540-
NE
. NEBRASKA COUNTIES INCLUDED ARE
CHASE DUNDY FRONTIER
HAYES HITCHCOCK LINCOLN
PERKINS RED WILLOW
$$
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.
$$
STATUS REPORT #4 ON WW 620
VALID 140340Z - 140440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 55 NNW GCK
TO 40 SSE ITR TO 40 SW IML TO 40 N IML TO 25 NE LBF.
..HALBERT..08/14/24
ATTN...WFO...BOU...GLD...LBF...CYS...
&&
STATUS REPORT FOR WS 620
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
KSC023-039-109-153-179-181-193-199-140440-
KS
. KANSAS COUNTIES INCLUDED ARE
CHEYENNE DECATUR LOGAN
RAWLINS SHERIDAN SHERMAN
THOMAS WALLACE
$$
NEC029-057-063-085-087-111-135-145-140440-
NE
. NEBRASKA COUNTIES INCLUDED ARE
CHASE DUNDY FRONTIER
HAYES HITCHCOCK LINCOLN
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 #3 ON WW 620
VALID 140240Z - 140340Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 40 NNE LAA
TO 45 E AKO TO 45 ENE SNY TO 25 SSW MHN.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1896
..HALBERT..08/14/24
ATTN...WFO...BOU...GLD...LBF...CYS...
&&
STATUS REPORT FOR WS 620
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC017-063-125-140340-
CO
. COLORADO COUNTIES INCLUDED ARE
CHEYENNE KIT CARSON YUMA
$$
KSC023-039-071-109-153-179-181-193-199-203-140340-
KS
. KANSAS COUNTIES INCLUDED ARE
CHEYENNE DECATUR GREELEY
LOGAN RAWLINS SHERIDAN
SHERMAN THOMAS WALLACE
WICHITA
$$
NEC029-057-063-085-087-101-111-113-117-135-145-140340-
NE
. NEBRASKA COUNTIES INCLUDED ARE
CHASE DUNDY FRONTIER
HAYES HITCHCOCK KEITH
LINCOLN LOGAN 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 620
VALID 140135Z - 140240Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 45 NNE LHX
TO 25 S AKO TO 15 E SNY TO 40 WSW MHN.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 1896
..HALBERT..08/14/24
ATTN...WFO...BOU...GLD...LBF...CYS...
&&
STATUS REPORT FOR WS 620
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC017-063-075-095-115-121-125-140240-
CO
. COLORADO COUNTIES INCLUDED ARE
CHEYENNE KIT CARSON LOGAN
PHILLIPS SEDGWICK WASHINGTON
YUMA
$$
KSC023-039-071-109-153-179-181-193-199-203-140240-
KS
. KANSAS COUNTIES INCLUDED ARE
CHEYENNE DECATUR GREELEY
LOGAN RAWLINS SHERIDAN
SHERMAN THOMAS WALLACE
WICHITA
$$
NEC005-029-049-057-063-069-085-087-101-111-113-117-135-145-
140240-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ARTHUR CHASE DEUEL
DUNDY FRONTIER GARDEN
HAYES HITCHCOCK KEITH
LINCOLN LOGAN 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 #1 ON WW 620
VALID 140030Z - 140140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 30 WSW LIC
TO 35 SW AKO TO 30 N SNY.
..HALBERT..08/14/24
ATTN...WFO...BOU...GLD...LBF...CYS...
&&
STATUS REPORT FOR WS 620
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
COC017-063-073-075-095-115-121-125-140140-
CO
. COLORADO COUNTIES INCLUDED ARE
CHEYENNE KIT CARSON LINCOLN
LOGAN PHILLIPS SEDGWICK
WASHINGTON YUMA
$$
KSC023-039-071-109-153-179-181-193-199-203-140140-
KS
. KANSAS COUNTIES INCLUDED ARE
CHEYENNE DECATUR GREELEY
LOGAN RAWLINS SHERIDAN
SHERMAN THOMAS WALLACE
WICHITA
$$
NEC005-029-033-049-057-063-069-085-087-101-111-113-117-135-145-
140140-
NE
. NEBRASKA COUNTIES INCLUDED ARE
ARTHUR CHASE CHEYENNE
DEUEL DUNDY FRONTIER
GARDEN HAYES HITCHCOCK
KEITH LINCOLN LOGAN
MCPHERSON PERKINS RED WILLOW
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
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 (5%)
|
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 (30%)
|
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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