Storm Prediction Center Severe Thunderstorm Watch 313
4 min read
4 months ago
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 313
NWS Storm Prediction Center Norman OK
300 PM MDT Fri May 23 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Eastern Colorado
Western Kansas
Western Nebraska
Far Southeast Wyoming
* Effective this Friday afternoon and evening from 300 PM until
900 PM MDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 3
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...At least isolated or widely scattered storms are expected
to further develop and intensify into the High Plains late this
afternoon and evening. Large hail should the most common severe
hail, but a brief tornado risk may exist as well, and damaging wind
potential may increase pending the evolution of storm clusters by
evening.
The severe thunderstorm watch area is approximately along and 65
statute miles east and west of a line from 20 miles northwest of
Alliance NE to 30 miles southeast of Springfield CO. 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.
&&
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
29025.
...Guyer
SEL3
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 313
NWS Storm Prediction Center Norman OK
300 PM MDT Fri May 23 2025
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Eastern Colorado
Western Kansas
Western Nebraska
Far Southeast Wyoming
* Effective this Friday afternoon and evening from 300 PM until
900 PM MDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 3
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...At least isolated or widely scattered storms are expected
to further develop and intensify into the High Plains late this
afternoon and evening. Large hail should the most common severe
hail, but a brief tornado risk may exist as well, and damaging wind
potential may increase pending the evolution of storm clusters by
evening.
The severe thunderstorm watch area is approximately along and 65
statute miles east and west of a line from 20 miles northwest of
Alliance NE to 30 miles southeast of Springfield CO. 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.
&&
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
29025.
...Guyer
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW3
WW 313 SEVERE TSTM CO KS NE WY 232100Z - 240300Z
AXIS..65 STATUTE MILES EAST AND WEST OF LINE..
20NW AIA/ALLIANCE NE/ - 30SE SPD/SPRINGFIELD CO/
..AVIATION COORDS.. 55NM E/W /28NE BFF - 61W LBL/
HAIL SURFACE AND ALOFT..3 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 29025.
LAT...LON 42250181 36970106 36970341 42250435
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU3.
Watch 313 Status Report Message has not been issued yet.
Probability of 1 or more strong (EF2-EF5) tornadoes
Low (10%)
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 (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 (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.
