MIL-OSI USA: SPC Severe Thunderstorm Watch 163

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.
SEL3

URGENT – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 163
NWS Storm Prediction Center Norman OK
350 PM CDT Wed Apr 23 2025

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
Eastern Colorado
Western Kansas

* Effective this Wednesday afternoon and evening from 350 PM
until 1100 PM CDT.

* Primary threats include…
Scattered large hail likely with isolated very large hail events
to 2.5 inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible

SUMMARY…Thunderstorms will increase in coverage through the late
afternoon and evening across the watch area, with a few supercells
possible. Large hail is the primary concern, however a tornado or
two could occur later this evening as well.

The severe thunderstorm watch area is approximately along and 70
statute miles east and west of a line from 55 miles northeast of
Goodland KS to 5 miles east of Elkhart KS. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU3).

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 162…

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
26030.

…Hart

SEL3

URGENT – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 163
NWS Storm Prediction Center Norman OK
350 PM CDT Wed Apr 23 2025

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
Eastern Colorado
Western Kansas

* Effective this Wednesday afternoon and evening from 350 PM
until 1100 PM CDT.

* Primary threats include…
Scattered large hail likely with isolated very large hail events
to 2.5 inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible

SUMMARY…Thunderstorms will increase in coverage through the late
afternoon and evening across the watch area, with a few supercells
possible. Large hail is the primary concern, however a tornado or
two could occur later this evening as well.

The severe thunderstorm watch area is approximately along and 70
statute miles east and west of a line from 55 miles northeast of
Goodland KS to 5 miles east of Elkhart KS. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
WOU3).

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 162…

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
26030.

…Hart

Note: The Aviation Watch (SAW) product is an approximation to the watch area. The actual watch is depicted by the shaded areas.
SAW3
WW 163 SEVERE TSTM CO KS 232050Z – 240400Z
AXIS..70 STATUTE MILES EAST AND WEST OF LINE..
55NE GLD/GOODLAND KS/ – 5E EHA/ELKHART KS/
..AVIATION COORDS.. 60NM E/W /24SW MCK – 40W LBL/
HAIL SURFACE AND ALOFT..2.5 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 26030.

LAT…LON 39919965 36990054 36990308 39910229

THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU3.

Watch 163 Status Report Message has not been issued yet.

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 (40%)

Probability of 1 or more wind events > 65 knots

Low (20%)

Hail

Probability of 10 or more severe hail events

Mod (60%)

Probability of 1 or more hailstones > 2 inches

Mod (40%)

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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