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wwus46 kpqr 161304

upper hood river valley-western columbia river gorge-
central columbia river gorge-south washington cascades-
including the cities of...odell...corbett...hood river...carson...
504 am pst mon jan 16 2017

...winter storm watch in effect from tuesday morning through
wednesday afternoon for the western and central columbia river
gorge...the hood river valley...and south washington cascade
valleys below 2500 feet...

the national weather service in portland has issued a winter
storm watch for significant icing in the valleys below 2500
feet...which is in effect from tuesday morning through wednesday

* timing...freezing rain is expected to develop early tuesday
  morning...increasing throughout the day. freezing rain will
  become heavy at times tuesday night and wednesday. temperatures
  will be very slow to climb under valley inversions...and many
  locations may not climb above freezing until wednesday afternoon
  or evening. precipitation will taper to showers wednesday night.

* ice accumulation...major ice storm is possible...with ice
  accumulations of one half inch to one inch expected to be fairly
  widespread. some locations may exceed one inch of ice from this

* impacts...this may be yet another major ice storm for the
  western and central columbia gorge and surrounding valleys.
  heavy ice accumulation will likely bring down some large
  branches and power lines. power outages may last multiple days
  depending on how widespread these impacts are. this event will
  only add to the existing heavy snow and ice loading on
  rooftops...which may cause some rooftops to fail.

precautionary/preparedness actions...

there is the potential for this to be a major ice storm with some
areas potentially exceeding one inch of ice accumulation.
residents should be prepared for extended power outages which
could potentially last multiple days. anyone with travel plans
through the gorge tuesday or wednesday should consider alternate
routes, as freezing rain is expected to make conditions
treacherous on area roads.



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