MIL-OSI USA: SPC Severe Thunderstorm Watch 280

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 280
NWS Storm Prediction Center Norman OK
255 PM CDT Sat May 17 2025

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of
West-Central Texas

* Effective this Saturday afternoon and evening from 255 PM until
1000 PM CDT.

* Primary threats include…
Scattered large hail and isolated very large hail events to 3
inches in diameter likely
Scattered damaging wind gusts to 70 mph likely

SUMMARY…Thunderstorms will affect the watch area through the
afternoon and early evening. Very unstable conditions will promote
a risk of large hail and damaging winds in the strongest storms.

The severe thunderstorm watch area is approximately along and 75
statute miles east and west of a line from 10 miles southwest of Del
Rio TX to 45 miles northwest of Temple TX. 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 277…WW 278…WW 279…

AVIATION…A few severe thunderstorms with hail surface and aloft to
3 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
25025.

…Hart

Note: The Aviation Watch (SAW) product is an approximation to the watch area. The actual watch is depicted by the shaded areas.
SAW0
WW 280 SEVERE TSTM TX 171955Z – 180300Z
AXIS..75 STATUTE MILES EAST AND WEST OF LINE..
10SW DRT/DEL RIO TX/ – 45NW TPL/TEMPLE TX/
..AVIATION COORDS.. 65NM E/W /15WSW DLF – 35W ACT/
HAIL SURFACE AND ALOFT..3 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 25025.

LAT…LON 29260228 31609924 31609669 29269979

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

Watch 280 Status Report Message has not been issued yet.

Note:  Click for Complete Product Text.Tornadoes

Probability of 2 or more tornadoes

Low (10%)

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 (60%)

Probability of 1 or more hailstones > 2 inches

Mod (60%)

Combined Severe Hail/Wind

Probability of 6 or more combined severe hail/wind events

High (>95%)

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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