457
WWUS46 KPQR 112357
WSWPQR
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE PORTLAND OR
457 PM PDT WED MAR 11 2026
ORZ126-127-120100-
/O.EXP.KPQR.WW.Y.0005.000000T0000Z-260312T0000Z/
NORTH OREGON CASCADES-CASCADES OF MARION AND LINN COUNTIES-
INCLUDING THE CITIES OF SANTIAM JUNCTION, GOVERNMENT CAMP,
SANTIAM PASS, TIMOTHY LAKE, BENNETT PASS, MCKENZIE PASS, LOST
LAKE, TOMBSTONE SUMMIT, AND BREITENBUSH SPRINGS
457 PM PDT WED MAR 11 2026
..WINTER WEATHER ADVISORY WILL EXPIRE AT 5 PM PDT THIS AFTERNOON
TEMPERATURES HAVE WARMED AND ARE EXPECTED TO REMAIN ABOVE FREEZING
OVERNIGHT. PRECIPITATION HAS TRANSITIONED TO RAIN, THEREFORE, THE
THREAT OF WINTER WEATHER IMPACTS HAS ENDED.
WAZ211-121200-
/O.CON.KPQR.WS.W.0002.000000T0000Z-260313T1200Z/
SOUTH WASHINGTON CASCADES-
INCLUDING THE CITIES OF MT. ST. HELENS, LARCH MOUNTAIN, AND
INDIAN HEAVEN WILDERNESS
457 PM PDT WED MAR 11 2026
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM PDT FRIDAY
* WHAT...HEAVY SNOW EXPECTED ABOVE 2500 FT. TOTAL SNOW ACCUMULATIONS
OF 10 TO 15 INCHES WITH UP TO 20 INCHES ALONG THE VOLCANOS. WINDS
GUSTING AS HIGH AS 35 MPH, EXCEPT UP TO 45 MPH ALONG THE PEAKS.
* WHERE...SOUTH WASHINGTON CASCADES.
* WHEN...UNTIL 5 AM PDT FRIDAY.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL
LIKELY BECOME SLICK AND HAZARDOUS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
CONSIDER POSTPONING TRAVEL UNTIL WEATHER CONDITIONS IMPROVE.
IF YOU MUST TRAVEL, BE SURE TO SLOW DOWN AND ALLOW EXTRA TIME.
IF YOUR CAR BECOMES TRAPPED IN DEEP SNOW, BE SURE TO KEEP YOUR CAR
OFF TO STAY SAFE FROM POTENTIAL CARBON MONOXIDE POISONING.
IF YOU ARE USING A GENERATOR, BE SURE TO KEEP IT OUTDOORS AND AWAY
FROM WINDOWS AND VENTS.
BE AWARE THAT WALKING SURFACES MAY BE SLICK. WALK WITH EXTRA CARE.
BACKCOUNTRY RECREATION IS NOT ADVISED.
FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE VISIT
WWW.WEATHER.GOV/PORTLAND
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