Storm Prediction Center Severe Thunderstorm Watch 659

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

   SEL9

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 659
   NWS Storm Prediction Center Norman OK
   500 PM MDT Sat Sep 5 2026

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Far Northeast Colorado
     Western Nebraska

   * Effective this Saturday afternoon and evening from 500 PM until
     900 PM MDT.

   * Primary threats include...
     Scattered large hail and isolated very large hail events to 2
       inches in diameter possible
     Scattered damaging wind gusts to 70 mph possible

   SUMMARY...A few supercells will likely yield a risk for large hail
   through the early evening.  As more storms develop this evening and
   outflow aggregates, the potential for severe gusts may increase
   before storms weaken by late evening.

   The severe thunderstorm watch area is approximately along and 40
   statute miles east and west of a line from 30 miles east of Chadron
   NE to 50 miles south southeast of Sidney NE. For a complete
   depiction of the watch see the associated watch outline update
   (WOUS64 KWNS WOU9).

   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 656...WW 657...WW 658...

   AVIATION...A few severe thunderstorms with hail surface and aloft to
   2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
   few cumulonimbi with maximum tops to 500. Mean storm motion vector
   25010.

   ...Smith

   SEL9

   URGENT - IMMEDIATE BROADCAST REQUESTED
   Severe Thunderstorm Watch Number 659
   NWS Storm Prediction Center Norman OK
   500 PM MDT Sat Sep 5 2026

   The NWS Storm Prediction Center has issued a

   * Severe Thunderstorm Watch for portions of 
     Far Northeast Colorado
     Western Nebraska

   * Effective this Saturday afternoon and evening from 500 PM until
     900 PM MDT.

   * Primary threats include...
     Scattered large hail and isolated very large hail events to 2
       inches in diameter possible
     Scattered damaging wind gusts to 70 mph possible

   SUMMARY...A few supercells will likely yield a risk for large hail
   through the early evening.  As more storms develop this evening and
   outflow aggregates, the potential for severe gusts may increase
   before storms weaken by late evening.

   The severe thunderstorm watch area is approximately along and 40
   statute miles east and west of a line from 30 miles east of Chadron
   NE to 50 miles south southeast of Sidney NE. For a complete
   depiction of the watch see the associated watch outline update
   (WOUS64 KWNS WOU9).

   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 656...WW 657...WW 658...

   AVIATION...A few severe thunderstorms with hail surface and aloft to
   2 inches. Extreme turbulence and surface wind gusts to 60 knots. A
   few cumulonimbi with maximum tops to 500. Mean storm motion vector
   25010.

   ...Smith

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

   SAW9 
   WW 659 SEVERE TSTM CO NE 052300Z - 060300Z
   AXIS..40 STATUTE MILES EAST AND WEST OF LINE..
   30E CDR/CHADRON NE/ - 50SSE SNY/SIDNEY NE/
   ..AVIATION COORDS.. 35NM E/W /71NE BFF - 31ENE AKO/
   HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
   MAX TOPS TO 500. MEAN STORM MOTION VECTOR 25010.

   LAT...LON 42830172 40430186 40430338 42830330

   THIS IS AN APPROXIMATION TO THE WATCH AREA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
   FOR WOU9.

Watch 659 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.