Storm Prediction Center Severe Thunderstorm Watch 318

Note: 
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for Watch Status Reports.

   SEL8

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 318
   NWS Storm Prediction Center Norman OK
   115 PM MDT Sat May 24 2025

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Front Range/East-Central Colorado

   * Effective this Saturday afternoon and evening from 115 PM until
     800 PM MDT.

   * Primary threats include...
     Scattered large hail and isolated very large hail events to 2.5
       inches in diameter possible
     Isolated damaging wind gusts to 60 mph possible
     A tornado or two possible

   SUMMARY...Widely scattered thunderstorm development is expected
   through mid/late afternoon with supercells possible. Large hail can
   be expected with the most robust storms, and some tornado risk may
   exist as well.

   The severe thunderstorm watch area is approximately along and 40
   statute miles east and west of a line from 25 miles east of Denver
   CO to 25 miles southeast of Colorado Springs CO. For a complete
   depiction of the watch see the associated watch outline update
   (WOUS64 KWNS WOU8).

   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 316...WW 317...

   AVIATION...A few severe thunderstorms with hail surface and aloft to
   2.5 inches. Extreme turbulence and surface wind gusts to 50 knots. A
   few cumulonimbi with maximum tops to 500. Mean storm motion vector
   27025.

   ...Guyer

   SEL8

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 318
   NWS Storm Prediction Center Norman OK
   115 PM MDT Sat May 24 2025

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Front Range/East-Central Colorado

   * Effective this Saturday afternoon and evening from 115 PM until
     800 PM MDT.

   * Primary threats include...
     Scattered large hail and isolated very large hail events to 2.5
       inches in diameter possible
     Isolated damaging wind gusts to 60 mph possible
     A tornado or two possible

   SUMMARY...Widely scattered thunderstorm development is expected
   through mid/late afternoon with supercells possible. Large hail can
   be expected with the most robust storms, and some tornado risk may
   exist as well.

   The severe thunderstorm watch area is approximately along and 40
   statute miles east and west of a line from 25 miles east of Denver
   CO to 25 miles southeast of Colorado Springs CO. For a complete
   depiction of the watch see the associated watch outline update
   (WOUS64 KWNS WOU8).

   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 316...WW 317...

   AVIATION...A few severe thunderstorms with hail surface and aloft to
   2.5 inches. Extreme turbulence and surface wind gusts to 50 knots. A
   few cumulonimbi with maximum tops to 500. Mean storm motion vector
   27025.

   ...Guyer

Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.

   SAW8 
   WW 318 SEVERE TSTM CO 241915Z - 250200Z
   AXIS..40 STATUTE MILES EAST AND WEST OF LINE..
   25E DEN/DENVER CO/ - 25SE COS/COLORADO SPRINGS CO/
   ..AVIATION COORDS.. 35NM E/W /12ESE DEN - 17N PUB/
   HAIL SURFACE AND ALOFT..2.5 INCHES. WIND GUSTS..50 KNOTS.
   MAX TOPS TO 500. MEAN STORM MOTION VECTOR 27025.

   LAT...LON 39770366 38560365 38560513 39770516

   THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
   FOR WOU8.

Watch 318 Status Report Message has not been issued yet.

Note:
 Click for Complete Product Text.

Tornadoes

Wind

Hail

Combined Severe Hail/Wind

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.