High Wind Warning 5, NWS Medford, OR

861 
WWUS76 KMFR 231029
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
229 AM PST Tue Jan 23 2018

...Strong south winds likely Tuesday and Wednesday...

.Another strong cold front will bring strong south winds to the
coast, Shasta Valley and portions of Lake and Klamath Counties
Tuesday and Wednesday.

ORZ021-022-232230-
/O.EXT.KMFR.HW.W.0004.180124T0000Z-180124T1200Z/
South Central Oregon Coast-Curry County Coast-
Including the cities of Bandon, Port Orford, and Gold Beach
229 AM PST Tue Jan 23 2018

...HIGH WIND WARNING NOW IN EFFECT FROM 4 PM THIS AFTERNOON TO
4 AM PST WEDNESDAY...

* Winds: South winds 35 to 40 mph with gusts to 60 mph. Higher
  gusts are possible along headlands and capes. 

* Timing: Mid Tuesday afternoon through Tuesday night.

* Locations include: Coastal communities from Cape Ferrelo to 
  Cape Arago, including Gold Beach, Port Orford, and Cape Blanco.
 
* Impacts: Strong winds will combine with heavy rain to produce 
  hazardous driving conditions, especially for high profile 
  vehicles. 

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD 

Precautionary/preparedness actions...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage. Travel will be
impacted, especially for high profile vehicles.

&&

$$

CAZ081-232230-
/O.CON.KMFR.HW.W.0004.180124T0000Z-180124T1800Z/
Central Siskiyou County-
Including the city of Weed
229 AM PST Tue Jan 23 2018

...HIGH WIND WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON
TO 10 AM PST WEDNESDAY...

* Winds: South 35 to 45 mph with gusts to 55 mph.

* Timing: Tuesday afternoon through Wednesday morning.

* Locations include: The southern Shasta Valley including 
  Interstate 5 from Weed north to Grenada. 

* Impacts: Driving may become difficult, especially for high 
  profile vehicles. 

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD 

Precautionary/preparedness actions...

The strongest winds are expected in the southern Shasta Valley
near Weed.

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage. Travel will be
impacted, especially for high profile vehicles.

&&

$$

ORZ030-031-232230-
/O.CON.KMFR.HW.W.0005.180124T1200Z-180125T0600Z/
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the city of Valley Falls
229 AM PST Tue Jan 23 2018

...HIGH WIND WARNING REMAINS IN EFFECT FROM 4 AM TO 10 PM PST
WEDNESDAY...

* Winds: South 35 to 45 mph with gusts to 60 mph.

* Timing: Tuesday night through Wednesday evening.

* Locations include: Highway 31 from Silver Lake to the 395 
  interchange. Highway 395 north of Lakeview. 

* Impacts: Driving may become difficult, especially for high 
  profile vehicles. 

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD 

Precautionary/preparedness actions...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage. Travel will be
impacted, especially for high profile vehicles.

&&

$$

220 
WWUS76 KMFR 232222
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
222 PM PST Tue Jan 23 2018

...Strong south winds late today and Wednesday...

.Another strong cold front will bring strong south winds to the
coast, Shasta Valley and portions of Lake and Klamath Counties
late today and Wednesday.

CAZ085-241100-
/O.NEW.KMFR.WI.Y.0006.180124T1200Z-180125T0600Z/
/O.EXA.KMFR.HW.W.0005.180124T1200Z-180125T0600Z/
Modoc County-
Including the cities of Alturas and Likely
222 PM PST Tue Jan 23 2018

...WIND ADVISORY IN EFFECT FROM 4 AM TO 10 PM PST WEDNESDAY...
...HIGH WIND WARNING IN EFFECT FROM 4 AM TO 10 PM PST WEDNESDAY...

The National Weather Service in Medford has issued a High Wind
Warning...which is in effect from 4 AM to 10 PM PST Wednesday. A
Wind Advisory has also been issued. This Wind Advisory is in
effect from 4 AM to 10 PM PST Wednesday. 

* Winds: South 35 to 45 mph with gusts to 60 mph in the warning
  area and south 25 to 30 mph with gusts to 45 mph in the 
  advisory area. 

* Timing: Tonight through Wednesday evening.

* Locations include: Locations in the warning area include Highway
  395 near Cedar Pass and the Warner Mountains. Locations in the
  advisory area include central and eastern Modoc County 
  including the cities of Alturas and Likely. 

* Impacts: Driving may become hazardous, especially for high 
  profile vehicles. Loose items may be blown 
  about. 

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD 


Precautionary/preparedness actions...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage. Travel will be
impacted, especially for high profile vehicles.

&&

$$

CAZ081-241100-
/O.EXT.KMFR.HW.W.0004.180124T0000Z-180124T2100Z/
Central Siskiyou County-
Including the city of Weed
222 PM PST Tue Jan 23 2018

...HIGH WIND WARNING NOW IN EFFECT UNTIL 1 PM PST WEDNESDAY...

* Winds: South 35 to 45 mph with gusts of 50 to 60 mph.

* Timing: Today through Wednesday morning.

* Locations include: The southern Shasta Valley including 
  Interstate 5 from Weed north to Grenada. 

* Impacts: Driving may become hazardous, especially for high 
  profile vehicles. 

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD 

Precautionary/preparedness actions...

The strongest winds are expected in the southern Shasta Valley
near Weed.

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage. Travel will be
impacted, especially for high profile vehicles.

&&

$$

ORZ030-031-241100-
/O.NEW.KMFR.WI.Y.0006.180124T1200Z-180125T0600Z/
/O.CON.KMFR.HW.W.0005.180124T1200Z-180125T0600Z/
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the city of Valley Falls
222 PM PST Tue Jan 23 2018

...WIND ADVISORY IN EFFECT FROM 4 AM TO 10 PM PST WEDNESDAY...
...HIGH WIND WARNING REMAINS IN EFFECT FROM 4 AM TO 10 PM PST
WEDNESDAY...

The National Weather Service in Medford has issued a Wind
Advisory...which is in effect from 4 AM to 10 PM PST Wednesday. 

* Winds: South 35 to 45 mph with gusts to 60 mph in the warning
  area and south 25 to 30 mph with gusts to 50 mph in the advisory
  area. 

* Timing: Tonight through Wednesday evening.

* Locations include: Locations in the warning area include Highway
  31 south of Silver Lake to the 395 interchange as well as the
  higher mountains in Lake County. Locations in the advisory area
  include the cities of Silver Lake, Valley Falls, Highway 395
  north of Lakeview, and Highway 140 east of Lakeview.

* Impacts: Driving may become hazardous, especially for high 
  profile vehicles. Loose items may be blown about. 

* View the hazard area in detail at
  https://www.wrh.noaa.gov/mfr/HAZARD 

Precautionary/preparedness actions...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage. Travel will be
impacted, especially for high profile vehicles.

A Wind Advisory means that winds of 35 mph are expected with
higher gusts possible. Winds this strong can make driving
difficult, especially for high profile vehicles. Use extra
caution.

&&

$$

ORZ021-022-241100-
/O.CON.KMFR.HW.W.0004.180124T0000Z-180124T1200Z/
South Central Oregon Coast-Curry County Coast-
Including the cities of Bandon, Port Orford, and Gold Beach
222 PM PST Tue Jan 23 2018

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY...

* Winds: South winds 35 to 40 mph with gusts to 60 mph. Higher 
  gusts are possible along headlands and capes. 

* Timing: Today and tonight.

* Locations include: Coastal communities from Cape Ferrelo to 
  Cape Arago, including Gold Beach, Port Orford, and Cape 
  Blanco. 

* Impacts: Strong winds will combine with heavy rain to produce 
  hazardous driving conditions, especially for high profile 
  vehicles. 

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD 

Precautionary/preparedness actions...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage. Travel will be
impacted, especially for high profile vehicles.

&&

$$

722 
WWUS76 KMFR 232253
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
253 PM PST Tue Jan 23 2018

...Strong south winds late today and Wednesday...

.Another strong cold front will bring strong south winds to the
coast, Shasta Valley and portions of Lake and Klamath Counties
late today and Wednesday.

CAZ085-ORZ030-031-241100-
/O.CON.KMFR.HW.W.0005.180124T1200Z-180125T0600Z/
/O.CON.KMFR.WI.Y.0006.180124T1200Z-180125T0600Z/
Modoc County-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the cities of Alturas, Likely, and Valley Falls
253 PM PST Tue Jan 23 2018

...HIGH WIND WARNING REMAINS IN EFFECT FROM 4 AM TO 10 PM PST
WEDNESDAY...
...WIND ADVISORY REMAINS IN EFFECT FROM 4 AM TO 10 PM PST
WEDNESDAY...

* Winds: South 35 to 45 mph with gusts to 60 mph in the warning 
  area and south 25 to 30 mph with gusts to 50 mph in the 
  advisory area. 

* Timing: Tonight through Wednesday evening.

* Locations include: Locations in the warning area include Highway
  31 south of Silver Lake to the 395 interchange, Highway 299 at
  Cedar Pass, the higher mountains in Lake County, and the Warner
  Mountains in Modoc County. Locations in the advisory area 
  include the cities of Silver Lake, Valley Falls, Highway 395 
  north of Lakeview, and Highway 140 east of Lakeview in Oregon 
  and central and eastern Modoc County in California including the
  cities of Alturas and Likely.

* Impacts: Driving may become hazardous, especially for high 
  profile vehicles. Loose items may be blown about. 

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD 

Precautionary/preparedness actions...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage. Travel will be
impacted, especially for high profile vehicles.

A Wind Advisory means that winds of 35 mph are expected with
higher gusts possible. Winds this strong can make driving
difficult, especially for high profile vehicles. Use extra
caution.

&&

$$

ORZ021-022-241100-
/O.CON.KMFR.HW.W.0004.180124T0000Z-180124T1200Z/
South Central Oregon Coast-Curry County Coast-
Including the cities of Bandon, Port Orford, and Gold Beach
253 PM PST Tue Jan 23 2018

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 AM PST WEDNESDAY...

* Winds: South winds 35 to 40 mph with gusts to 60 mph. Higher 
  gusts are possible along headlands and capes. 

* Timing: Today and tonight.

* Locations include: Coastal communities from Cape Ferrelo to 
  Cape Arago, including Gold Beach, Port Orford, and Cape 
  Blanco. 

* Impacts: Strong winds will combine with heavy rain to produce 
  hazardous driving conditions, especially for high profile 
  vehicles. 

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD 

Precautionary/preparedness actions...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage. Travel will be
impacted, especially for high profile vehicles.

&&

$$

CAZ081-241100-
/O.CON.KMFR.HW.W.0004.180124T0000Z-180124T2100Z/
Central Siskiyou County-
Including the city of Weed
253 PM PST Tue Jan 23 2018

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 1 PM PST WEDNESDAY...

* Winds: South 35 to 45 mph with gusts of 50 to 60 mph.

* Timing: Today through Wednesday morning.

* Locations include: The southern Shasta Valley including 
  Interstate 5 from Weed north to Grenada. 

* Impacts: Driving may become hazardous, especially for high 
  profile vehicles. 

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD 

Precautionary/preparedness actions...

The strongest winds are expected in the southern Shasta Valley
near Weed.

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage. Travel will be
impacted, especially for high profile vehicles.

&&

$$

319 
WWUS76 KMFR 241121
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
321 AM PST Wed Jan 24 2018

ORZ021-022-241230-
/O.CAN.KMFR.HW.W.0004.000000T0000Z-180124T1200Z/
South Central Oregon Coast-Curry County Coast-
321 AM PST Wed Jan 24 2018

...HIGH WIND WARNING IS CANCELLED...

The National Weather Service in Medford has cancelled the High
Wind Warning. 

Although the strongest winds have weakened, winds will remain
gusty through the morning. 

$$

CAZ085-ORZ030-031-242330-
/O.CON.KMFR.HW.W.0005.180124T1200Z-180125T0600Z/
/O.CON.KMFR.WI.Y.0006.180124T1200Z-180125T0600Z/
Modoc County-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the cities of Alturas, Likely, and Valley Falls
321 AM PST Wed Jan 24 2018

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING...
...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING...

* Winds: South 35 to 45 mph with gusts to 60 mph in the warning 
  area and south 25 to 30 mph with gusts to 50 mph in the 
  advisory area. 

* Timing: Through Wednesday evening.

* Locations in the warning area include: Highway 31 south of
  Silver Lake to the 395 interchange, Highway 299 at Cedar Pass,
  the higher mountains in Lake County, and the Warner Mountains in
  Modoc County. 

* Locations in the advisory area include: The cities of Silver
  Lake, Valley Falls, Highway 395 north of Lakeview, and Highway
  140 east of Lakeview in Oregon, and central and eastern Modoc
  County in California, including the cities of Alturas and 
  Likely.
 
* Impacts: Driving may become hazardous, especially for high 
  profile vehicles. Loose items may be blown about. 

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD 

Precautionary/preparedness actions...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage. Travel will be
impacted, especially for high profile vehicles.

A Wind Advisory means that winds of 35 mph are expected with
higher gusts possible. Winds this strong can make driving
difficult, especially for high profile vehicles. Use extra
caution.

&&

$$

CAZ081-242100-
/O.CON.KMFR.HW.W.0004.000000T0000Z-180124T2100Z/
Central Siskiyou County-
Including the city of Weed
321 AM PST Wed Jan 24 2018

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 1 PM PST THIS
AFTERNOON...

* Winds: South 35 to 45 mph with gusts of 50 to 60 mph.

* Timing: Through Wednesday morning.

* Locations include: The southern Shasta Valley including 
  Interstate 5 from Weed north to Grenada. 

* Impacts: Driving may become hazardous, especially for high 
  profile vehicles. 

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD 

Precautionary/preparedness actions...

The strongest winds are expected in the southern Shasta Valley
near Weed.

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage. Travel will be
impacted, especially for high profile vehicles.

&&

$$

BPN

492 
WWUS76 KMFR 242055
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
1255 PM PST Wed Jan 24 2018

CAZ081-242200-
/O.EXP.KMFR.HW.W.0004.000000T0000Z-180124T2100Z/
Central Siskiyou County-
Including the city of Weed
1255 PM PST Wed Jan 24 2018

...HIGH WIND WARNING WILL EXPIRE AT 1 PM PST THIS AFTERNOON...

Gusty south winds will continue this afternoon, but should remain
below advisory criteria.

$$

CAZ085-ORZ030-031-250600-
/O.CON.KMFR.HW.W.0005.000000T0000Z-180125T0600Z/
/O.CON.KMFR.WI.Y.0006.000000T0000Z-180125T0600Z/
Modoc County-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the cities of Alturas, Likely, and Valley Falls
1255 PM PST Wed Jan 24 2018

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING...
...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING...

* Winds: South 35 to 45 mph with gusts to 60 mph in the warning 
  area and south 25 to 30 mph with gusts to 50 mph in the 
  advisory area. 

* Timing: Through this evening.

* Locations in the warning area include: Highway 31 south of 
  Silver Lake to the 395 interchange, Highway 299 at Cedar Pass, 
  the higher mountains in Lake County, and the Warner Mountains 
  in Modoc County. 

* Locations in the advisory area include: The cities of Silver 
  Lake, Valley Falls, Highway 395 north of Lakeview, and Highway 
  140 east of Lakeview in Oregon, and central and eastern Modoc 
  County in California, including the cities of Alturas and 
  Likely. 

* Impacts: Driving may become hazardous, especially for high 
  profile vehicles. Loose items may be blown about. 

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD 

Precautionary/preparedness actions...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage. Travel will be
impacted, especially for high profile vehicles.

A Wind Advisory means that winds of 35 mph are expected with
higher gusts possible. Winds this strong can make driving
difficult, especially for high profile vehicles. Use extra
caution.

&&

$$

Petrucelli

421 
WWUS76 KMFR 250213
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
613 PM PST Wed Jan 24 2018

...Strong winds through this evening then again on Thursday...

.Strong, gusty winds will continue through this evening over
portions of the east side as a cold front moves through. Winds
weaken overnight, but then increase again Thursday morning as a
strong upper level disturbances moves through. Winds have already
diminished in the Shasta Valley, but they will increase again
Thursday morning.

CAZ085-ORZ030-031-251200-
/O.CAN.KMFR.HW.W.0005.000000T0000Z-180125T0600Z/
/O.EXT.KMFR.WI.Y.0006.000000T0000Z-180125T2100Z/
Modoc County-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the cities of Alturas, Likely, Adel, Lakeview, and 
Valley Falls
613 PM PST Wed Jan 24 2018

...WIND ADVISORY NOW IN EFFECT UNTIL 1 PM PST THURSDAY...
...HIGH WIND WARNING IS CANCELLED...

* Winds: South 25 to 35 mph with gusts to 45 mph possible. 

* Timing: Gusty winds will continue through this evening then 
  diminish overnight. A second surge in wind is expected mid to 
  late morning Thursday. 

* Locations include: Much of Lake County and eastern Modoc County.
  This includes U.S. highway 395 from Alturas, CA north through
  Alkali Lake, OR, Oregon highway 31 south and east of Silver Lake
  to highway 395, and higher terrain adjacent to these areas.

* Impacts: Driving will be difficult at times, especially for 
  high profile vehicles. Loose items may be blown about. 

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD 

Precautionary/preparedness actions...

A Wind Advisory means that winds of 35 mph are expected with
higher gusts possible. Winds this strong can make driving
difficult, especially for high profile vehicles. Use extra
caution.
&&

$$

CAZ081-251200-
/O.NEW.KMFR.WI.Y.0007.180125T1200Z-180125T1800Z/
Central Siskiyou County-
Including the city of Weed
613 PM PST Wed Jan 24 2018

...WIND ADVISORY IN EFFECT FROM 4 AM TO 10 AM PST THURSDAY...

The National Weather Service in Medford has issued a Wind
Advisory...which is in effect from 4 AM to 10 AM PST Thursday. 

* Winds...South 25 to 35 mph with gusts to 50 mph possible.

* Timing...Breezy winds will continue through tonight, then winds
  increase again Thursday morning. 

* Locations include...The southern end of the Shasta Valley
  including Interstate 5 from Weed north to near Grenada. 

* Impacts...Driving will be difficult at times, especially for 
  high profile vehicles. Loose items may be blown about. 

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD 

Precautionary/preparedness actions...

A Wind Advisory means that winds of 35 mph are expected with 
higher gusts possible. Winds this strong can make driving 
difficult, especially for high profile vehicles. Use extra 
caution.

&&

$$

Area Forecast Discussion
National Weather Service Medford OR
945 AM PST Mon Jan 22 2018

.DISCUSSION...Morning update. Showers continue to taper off as an
upper ridge slowly begins to build briefly ahead of the next system
that moves in tonight. Current forecast looks on track and will
expire the winter weather advisory. Sven

.Short Term...through Wednesday...Snow showers continue to produce
accumulations in portions of Siskiyou County this morning. In
fact, from webcams it looks pretty snowy around Snowman Summit,
and while it doesn't look like it's sticking to I-5 that much,
it's snowing from Dunsmuir up through Mt. Shasta. High resolution
guidance shows this continuing through mid morning but gradually
tapering off. Another inch or two of snow is possible through
dawn, then impacts will diminish. As a result, the winter weather
advisory was extended through 10 AM for these locations. It is
still also snowing occasionally around Mt. Ashland and in the
Cascades. Accumulations should generally be light and diminish as
the airmass dries and upper forcing moves off to our east today.
The rest of us in the lower elevations will see a couple of
showers roaming around this morning, but those will decrease as
well. The exception will be along the coast where onshore flow
will keep shower potential going through today.

We'll see a short break tonight into early Tuesday, but the next
front will already be knocking on the door by daylight Tuesday.
This front doesn't look quite as strong as the last one, but it
does look more "traditional" in that the flow aloft is more
southerly and thus is more supportive of strong winds in the usual
areas like Shasta Valley and east side. This one isn't a slam
dunk for winds, but there is certainly enough potential to warrant
a high wind watch in the usual spots, and one has already been
issued.

The front will be much more slow moving than its predecessor, and
thus it will be much wetter. This is the first front in a while
that looks like a true "atmospheric river." Current forecast
rainfall amounts are 3-6 inches along the south coast and coastal
mountains, 1-2 inches in the Cascades and Siskiyous, up to an
inch in interior west side valleys, and 0.25 to 0.50 inch on the
east side. Snow levels will rise to around 5000 feet as warm
southerly flow develops, but above this elevation, these copious
precipitation amounts will be snow. As such, a winter storm watch
was issued for the Cascades and Siskiyous. We could easily see a
foot of snow from Crater Lake down to Mt. Ashland, which is not
great news for travelers, but it is to would-be skiers. This setup
also looks to favor the Mt. Shasta area this time. Flow aloft is
much more southerly, precipitation should be heavy, and
thermodynamics are favorable. We held off on issuing a winter
storm watch for Siskiyou County to avoid confusion with the
current advisory, but one could be forthcoming when the advisory
expires later this morning. -Wright

.Long Term...Thu, Jan 25th through Sunday night, Jan 29th, 2018...
The long term period begins with an anomalously cold trough of low
pressure extending from southern Alaska southward to southern
California along the West Coast. GEFS 500MB geopotential heights
begin the period at 537 decameters, which equates to a normalized
anomaly of -1.75 to -2 standard deviations. Thus, it will be colder
than normal across the forecast area with showers and low snow
levels expected. Model guidance is well agreed on showers from along
and near the Cascades westward during the day on Thursday,
diminishing Thursday night into Friday morning. Snow levels are
expected to generally be between 1500 and 2500 feet, +/- 500 feet.
Therefore, we'll be on the lookout for snowfall on the lower passes
such as Jacksonville Hill and the Sexton Summits. Snow will also be
possible on or near the valley floors of the Rogue and Illinois
valleys. Have adjusted snow levels Thursday morning through Friday
morning to account for some expectation of the local effect of lower
snow levels in convective SW flow over and near the Illinois Valley
versus the Rogue Valley. Given the showery pattern, current
expectations are that accumulations in the valleys will be generally
light, but could be locally significant in locations such as Hayes
Hill in the Illinois Valley. For the relatively parched downhill ski
areas, models are indicating 0.25" to 0.75" of water equivalent at
Mount Ashland and 0.50" to 1.0" at Mount Shasta Wednesday night
through Friday morning. Due to the cold air mass snow amounts are
expected to be a fluffy 5-10 additional inches at Mount Ashland and
6-12 additional inches on Mount Shasta.

Friday the trough begins to lift out to the northeast as high
pressure begins to build in from the southwest. However, due to
replacement of a colder air mass by a warmer one, we anticipate
precipitation could linger Friday into Saturday, especially over NW
sections of the forecast area, with snow levels remaining below 5500
feet.

Anomalously high amplitude high pressure is then expected to move
through Saturday night through Monday, followed by another fairly
strong trough of low pressure arriving from the Gulf of Alaska
Tuesday into Wednesday. This trough is not as deep as recent ones on
the GEFS, but should be enough to bring us a bit more rain and some
freshening of the mountain snowpack. It is notable that both the 12Z
ECMWF and 18Z GFS do indicate the trough to be deeper/colder than
does the GEFS mean, so this means there is uncertainty related to
the amplitude and resultant southern periphery of this trough. BTL

&&

.AVIATION...22/06Z TAF CYCLE...The front has moved through the
region and we're now watching showers on radar.  CIGS are quite high
in the majority of areas around 3500 feet, so mountain obscuration
is likely over the Cascades during the overnight hours.  There
appears to be some clearing to the west, so the valleys are expected
to see some low level MVFR stratus at times and perhaps some
visibility reductions.

Also added snow showers near Klamath falls and those can reduce
visibilities down to 2-3 miles when the move over head.  Those
should be pretty isolated through the next 6 hours.

Not expecting fog to force IFR rules because the low level
instability increases during the overnight hours with the colder air
moving in aloft.

As for Monday,  look for VFR conditions to prevail with just a few
cumulus clouds forming in the cold and unstable airmass.

-Smith

&&

.MARINE...Updated 200 AM PST Monday 22 Jan 2018...A break
between systems is expected today. Winds will be relatively calm,
but seas will remain steep and hazardous to small craft through
tonight. The next system will affect the waters early Tuesday
morning. This front is not as strong as the recent one on Sunday, so
only gales are expected. However, this front may stall and the
duration of strong winds may be longer than the Sunday system.
Currently it looks like winds will be just below gale force after
Wednesday morning, but are expected to remain increased through
Thursday morning.

Seas will build again late Tuesday morning becoming very steep and
hazardous 14 to 17 feet at 10 to 11 seconds through Wednesday
morning. Seas will remain elevated through much of the week, peaking
again at 19 to 20 feet on Thursday. Conditions may briefly improve
Friday before the next front moves through the waters Friday
evening. /BR-y

&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...High Wind Watch from late Tuesday night through Wednesday
     evening for ORZ030-031.
     Winter Storm Watch from Tuesday evening through Wednesday
     evening above 5000 feet in the for ORZ027-028.

CA...High Wind Watch from Tuesday afternoon through Wednesday morning
     for CAZ081.
     Winter Weather Advisory until 10 AM PST this morning for
     CAZ082-083.

Pacific Coastal Waters...Small Craft Advisory until 4 AM PST Tuesday
for      PZZ350-356-370-376.      Gale Warning from 4 AM Tuesday to
4 AM PST Wednesday for      PZZ350-356-370-376.      Hazardous Seas
Warning from 4 AM Tuesday to 4 AM PST Wednesday      for PZZ350-356.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
1047 AM PST MON JAN 22 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0900 AM     HEAVY RAIN       6 SE SELMA              42.23N 123.52W
01/22/2018  M1.22 INCH       JOSEPHINE          OR   TRAINED SPOTTER

            9AM PST SUNDAY TO 9AM PST MONDAY. LOCATION
            IS 1750 FEET ELEVATION ON THE NE SIDE OF
            GREYBACK MOUNTAIN. SNOW ACCUMULATED DOWN TO
            ABOUT 1775FT. THE DURATION OF THE HEAVY RAIN
            EVENT WAS 24 HOURS.

&&

BTL