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Source: US National Oceanic and Atmospheric Administration

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 580
NWS Storm Prediction Center Norman OK
610 PM CDT Tue Aug 13 2019

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
Western and central Kansas

* Effective this Tuesday night and Wednesday morning from 610 PM
until 200 AM CDT.

* Primary threats include…
Scattered damaging winds likely with isolated significant gusts
to 90 mph possible
Isolated large hail events to 1.5 inches in diameter possible
A tornado or two possible

SUMMARY…A severe thunderstorm complex, now becoming well-organized
over northwestern Kansas with a history of measured severe wind,
should sweep southeastward across the watch area through this
evening. The main concern will be severe gusts, though isolated
large hail is possible, and a tornado cannot be ruled out.

The severe thunderstorm watch area is approximately along and 70
statute miles either side of a line from 55 miles northwest of
Liberal KS to 50 miles southeast of Russell KS. 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.

&&

OTHER WATCH INFORMATION…CONTINUE…WW 577…WW 578…WW 579…

AVIATION…A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 80 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
31035.

…Edwards

SEL0

URGENT – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 580
NWS Storm Prediction Center Norman OK
610 PM CDT Tue Aug 13 2019

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
Western and central Kansas

* Effective this Tuesday night and Wednesday morning from 610 PM
until 200 AM CDT.

* Primary threats include…
Scattered damaging winds likely with isolated significant gusts
to 90 mph possible
Isolated large hail events to 1.5 inches in diameter possible
A tornado or two possible

SUMMARY…A severe thunderstorm complex, now becoming well-organized
over northwestern Kansas with a history of measured severe wind,
should sweep southeastward across the watch area through this
evening. The main concern will be severe gusts, though isolated
large hail is possible, and a tornado cannot be ruled out.

The severe thunderstorm watch area is approximately along and 70
statute miles either side of a line from 55 miles northwest of
Liberal KS to 50 miles southeast of Russell KS. 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.

&&

OTHER WATCH INFORMATION…CONTINUE…WW 577…WW 578…WW 579…

AVIATION…A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 80 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
31035.

…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 580 SEVERE TSTM KS 132310Z – 140700Z
AXIS..70 STATUTE MILES EITHER SIDE OF LINE..
55NW LBL/LIBERAL KS/ – 50SE RSL/RUSSELL KS/
..AVIATION COORDS.. 60NM EITHER SIDE /48NW LBL – 43SW SLN/
HAIL SURFACE AND ALOFT..1.5 INCHES. WIND GUSTS..80 KNOTS.
MAX TOPS TO 550. MEAN STORM MOTION VECTOR 31035.

LAT…LON 38590194 39349843 37349791 36610141

THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU0.

Watch 580 Status Report Message has not been issued yet.

Note:  Click for Complete Product Text.TornadoesProbability of 2 or more tornadoes

Low (20%)

Probability of 1 or more strong (EF2-EF5) tornadoes

Low (5%)

WindProbability of 10 or more severe wind events

Mod (60%)

Probability of 1 or more wind events > 65 knots

Mod (40%)

HailProbability of 10 or more severe hail events

Low (20%)

Probability of 1 or more hailstones > 2 inches

Low (20%)

Combined Severe Hail/WindProbability 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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