393 
WWUS46 KPDT 131101
WSWPDT

URGENT - WINTER WEATHER MESSAGE
National Weather Service Pendleton OR
401 AM PDT Thu Mar 13 2025

ORZ509-131915-
/O.CON.KPDT.WS.W.0006.000000T0000Z-250314T0600Z/
/O.CON.KPDT.WS.A.0002.250314T1200Z-250316T0000Z/
East Slopes of the Oregon Cascades-
Including the cities of La Pine, Sunriver, Camp Sherman, and
Sisters
401 AM PDT Thu Mar 13 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS 
EVENING ABOVE 4000 FEET...
...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH 
SATURDAY AFTERNOON...

* WHAT...For the Winter Storm Warning, heavy snow expected above 
  4000 feet; total snow accumulations of 6 to 12 inches. For the 
  Winter Storm Watch, heavy snow possible; total snow accumulations 
  of 8 to 16 inches possible above 4000 feet and 2 to 4 inches below 
  4000 feet.

* WHERE...East Slopes of the Oregon Cascades.

* WHEN...For the Winter Storm Warning, until 11 PM PDT this evening. 
  For the Winter Storm Watch, from late tonight through Saturday 
  afternoon.

* IMPACTS...Significant snowfall with periods of heavy snowfall 
  rates will combine with low visibility to create very difficult 
  driving conditions, especially along US-20 over Santiam Pass.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons should consider delaying travel if possible. If travel is 
absolutely necessary, drive with extreme caution and be prepared for 
sudden changes in visibility. Leave plenty of room between you and 
the motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

&&

$$

WAZ522-131900-
/O.CON.KPDT.WW.Y.0015.000000T0000Z-250313T1900Z/
Upper Slopes of the Eastern Washington Cascades Crest-
Including the cities of Roslyn and Easton
401 AM PDT Thu Mar 13 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON PDT TODAY 
ABOVE 3000 FEET...

* WHAT...Snow expected above 3000 feet. Total snow accumulations of 
  5 to 10 inches. Winds gusting as high as 40 mph.

* WHERE...Upper Slopes of the Eastern Washington Cascades Crest.

* WHEN...Until noon PDT today.

* IMPACTS...Plan on slippery road conditions. Gusty winds could 
  bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions can be obtained by visiting the website 
wsdot.wa.gov/travel.

&&

$$

LN