wwus86 kmfr 211036
spsmfr
927
special weather statement
national weather service medford or
336 am pdt tue may 21 2013
caz080>085-orz021>031-220015-
western siskiyou county-central siskiyou county-
south central siskiyou county-
north central and southeast siskiyou county-
northeast siskiyou and northwest modoc counties-modoc county-
south central oregon coast-curry county coast-
central douglas county-eastern curry county and josephine county-
eastern douglas county foothills-jackson county-
south central oregon cascades-
siskiyou mountains and southern oregon cascades-klamath basin-
northern and eastern klamath county and western lake county-
central and eastern lake county-
including the cities of...etna...fort jones...greenview...yreka...
weed...mount shasta...dunsmuir...mccloud...tennant...tulelake...
dorris...alturas...coos bay...north bend...reedsport...bandon...
port orford...coquille...brookings...harbor...gold beach...
drain...elkton...roseburg...sutherlin...green...myrtle creek...
canyonville...glendale...grants pass...cave junction...
steamboat...toketee falls...medford...ashland...crater lake...
crescent lake...diamond lake...union creek...howard prairie...
siskiyou summit...altamont...klamath falls...beatty...bly...
chemult...crescent...gilchrist...sprague river...lakeview
336 am pdt tue may 21 2013
...unseasonably cold temperatures and pass level snow expected
this week...
a potent cold front will sweep through southern oregon and
northern california today...bringing an unseasonably cold air
mass to the area. strong gusty winds and widespread precipitation
will accompany the front as it passes through...and temperatures
will fall sharply.
snow levels are expected to drop to around 2800 feet by wednesday
morning...bringing in 3 to 6 inches of snow over all cascade
passes and 1 to 3 inches over siskiyou summit. snow amounts of 3
to 6 inches are possible on the higher portions of bear camp road.
snow levels may drop briefly down to lower passes like sexton
summit as well. however...with the longer days and higher sun
angles soil and road temperatures are quite warm...and it will be
difficult for snow to accumulate.
cold nighttime temperatures will bring below freezing temperatures
east of the cascades tonight and wednesday night. temperatures in places
east of the cascades may drop into the mid to lower 20s...possibly
causing unprotected exposed pipes to burst.
stay tuned to your local national weather service forecasts for
updates as the system progresses.
$$

wwus86 kpqr 211023
spspqr
398
special weather statement
national weather service portland or
323 am pdt tue may 21 2013
orz001>014-waz019>023-039-040-220000-
north oregon coast-central oregon coast-
coast range of northwest oregon-
central coast range of western oregon-lower columbia-
greater portland metro area-central willamette valley-
south willamette valley-western columbia river gorge-
northern oregon cascade foothills-northern oregon cascades-
cascade foothills in lane county-cascades in lane county-
upper hood river valley-south washington cascades-willapa hills-
south washington coast-i-5 corridor in cowlitz county-
greater vancouver area-south washington cascade foothills-
including the cities of...astoria...cannon beach...tillamook...
lincoln city...newport...florence...vernonia...jewell...trask...
grande ronde...tidewater...swisshome...st. helens...clatskanie...
hillsboro...portland...oregon city...gresham...salem...
mcminnville...dallas...eugene...corvallis...albany...hood river...
cascade locks...multnomah falls...sandy...
silver falls state park...sweet home...government camp...
detroit...santiam pass...vida...lowell...cottage grove...
mckenzie bridge...oakridge...willamette pass...parkdale...odell...
coldwater ridge visitors center...mount st. helens...frances...
ryderwood...raymond...long beach...cathlamet...longview...kelso...
castle rock...stevenson...skamania...vancouver...battle ground...
washougal...toutle...ariel...cougar
323 am pdt tue may 21 2013
...much cooler weather today snow levels lowering to pass level
tonight...
there will be a drastic change in temperatures today as a cold
low pressure system moves over northwest oregon. many locations
will see temperatures 15 to 20 degrees cooler than those
experienced monday.
snow levels will start out high...above 8000 feet this morning...
then lower to 4000 feet this evening...and down to 3000 feet by
wednesday morning. snow accumulations are expected to remain below
advisory conditions with 2 to 4 inches expected between 3000 and
6000 feet tuesday night through wednesday. higher snow amounts...6
to 9 inches are likely above 6000 feet.
showers at lower elevations may include small hail this
afternoon...potentially resulting in extra slick roadways. there
may also be a few thunderstorms this afternoon and evening.
drivers should use extra caution...especially while driving over
the cascade passes or encountering small hail on the roads. slow
down and leave plenty of room between cars.
hikers and climbers venturing into the mountains will want to be
prepared for a quick change to cold and wet weather today...
especially following a deceptively warm and sunny monday. from 3000
feet and up...be prepared for accumulating snow starting this
evening and continuing through at least wednesday night.
for more weather information from noaa's national weather service
visit... http://weather.gov/portland (all lower case)
$$

wwus86 ksew 211156
spssew
404
special weather statement
national weather service seattle wa
456 am pdt tue may 21 2013
waz513-518-519-220030-
olympics-west slopes northern cascades and passes-
west slopes central cascades and passes-
456 am pdt tue may 21 2013
...a change to cold and wet weather in the mountains will start
today and continue through the week...
cold air will move into western washington today and will remain
over the area through the end of the week. the snow levels will
fall to 4500 feet this morning and to 3500 feet tonight and
wednesday.
snow will accumulate at times at high elevations this afternoon
through wednesday or thursday. higher highway passes that have
opened for the summer...including rainy pass and chinook pass...
will likely get a few to several inches of snow. stevens and white
passes could also get some snow. little or no snowfall is forecast
for snoqualmie pass.
hikers and climbers may want to postpone any trips into the
mountains this week...especially at higher elevations. if you
go...be prepared for accumulating snow above 4000 feet starting
later tuesday and continuing through at least wednesday night.
drivers crossing the cascades should consider using one of the
lower passes such as snoqualmie pass. allow extra time for mountain
journeys this week.
$$