Alert archive / Oregon / Winter Storm Warnings in 2017

Winter Storm Warning 11, NWS Medford, OR

February 25, 2017Douglas County, Jackson County, Oregon

NWS Medford, OR issued this winter storm warning at Feb 25, 2017, 2:37 PM PST for Douglas County, Jackson County, Oregon. It took effect at Feb 26, 2017, 10:00 AM PST. It was in force for 16 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 25, 2017, 2:37 PM PST (22:37 UTC)
In effect from
Feb 26, 2017, 10:00 AM PST
Expired
Feb 27, 2017, 1:41 AM PST
In force
16 hr
Issued by
NWS Medford, OR

Counties Douglas County, OR, Jackson County, OR

The radar

The Medford radar (KMAX), 89 km from the middle of the area, began a volume at 22:42 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Medford/Jackson, OR (KMFR), launched 12:00Z, 10.6 hours before the alert went out and 56 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Medford/Jackson, OR at 12:00Z on 2017-02-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Medford/Jackson, OR at 12:00Z on 2017-02-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
509 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
27 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

831 
WWUS46 KMFR 252237
WSWMFR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Medford OR
237 PM PST Sat Feb 25 2017

...Snow to impact much of the region Sunday...

.A cold front will bring lowering snow levels and moderate to
heavy precipitation to the forecast area Sunday into Sunday 
night. Travel will be impacted on high mountain passes and the 
lower passes on Interstate 5 and Highway 199. Occasional heavier 
snow showers Sunday afternoon and evening could quickly cover 
roadways and may bring slushy accumulations to some valley floors.

ORZ023-261200-
/O.CAN.KMFR.WS.A.0010.170226T1800Z-170227T1200Z/
/O.CON.KMFR.WW.Y.0021.170226T1500Z-170227T1200Z/
Central Douglas County-
Including the city of Glendale...Azalea...Tiller
237 PM PST Sat Feb 25 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM SUNDAY TO
4 AM PST MONDAY...
...WINTER STORM WATCH IS CANCELLED...

The National Weather Service in Medford has cancelled the Winter
Storm Watch. 

* Snow accumulations: 3 to 6 inches.

* Elevation: Generally above 1500 feet. 

* Timing: The highest snowfall rates are expected Sunday
  afternoon. 

* Locations include: Glendale, Azalea, Tiller, Interstate 5 from
  Sexton Pass to Canyonville, Highway 42 at Camas Mountain Pass,
  and Highway 227. 

* Impacts: Any heavier snow showers, even during the afternoon 
  Sunday, could quickly create slushy conditions on roadways. 
  Snowfall will reduce visibilities to less than a half mile at 
  times. 

Precautionary/preparedness actions...

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities.

* See weather.gov/Medford/Cams for latest road conditions.

&&

$$

ORZ024-261200-
/O.CAN.KMFR.WS.A.0010.170226T1500Z-170227T1200Z/
/O.CON.KMFR.WW.Y.0021.170226T1500Z-170227T1200Z/
Eastern Curry County and Josephine County-
Including the city of Cave Junction...Selma...Obrien...Wolf Creek
237 PM PST Sat Feb 25 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM SUNDAY TO
4 AM PST MONDAY...

The National Weather Service in Medford has upgraded the Winter
Storm Watch to a Winter Weather Advisory. 

* Snow accumulations: 2 to 4 inches. Up to 8 inches possible 
  above 2500 feet. 

* Timing: The highest snowfall rates are expected Sunday
  afternoon. 

* Advisory locations include: Cave Junction, Selma, Obrien, Wolf
  Creek, Highway 199 from Hayes Hill to Obrien, and Interstate 5
  at Sexton Pass. 

* Impacts: Any heavier snow showers, even during the afternoon 
  Sunday, could quickly create slushy conditions on roadways. 
  Snowfall will reduce visibilities to less than a half mile at 
  times. 

Precautionary/preparedness actions...

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities.

* See weather.gov/Medford/Cams for latest road conditions.

&&

$$

ORZ026-261200-
/O.UPG.KMFR.WS.A.0010.170226T1800Z-170227T1200Z/
/O.NEW.KMFR.WS.W.0011.170226T1800Z-170227T1200Z/
/O.EXA.KMFR.WW.Y.0021.170226T1800Z-170227T1200Z/
Jackson County-
237 PM PST Sat Feb 25 2017

...WINTER STORM WARNING IN EFFECT FROM 10 AM SUNDAY TO 4 AM PST
MONDAY...
...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM SUNDAY TO 4 AM
PST MONDAY...

The National Weather Service in Medford has upgraded the Winter
Storm Watch to a Winter Storm Warning for Heavy Snow...which is 
in effect from 10 AM Sunday to 4 AM PST Monday. A Winter Weather 
Advisory for Snow is also in effect from 10 AM Sunday to 4 AM PST
Monday. 

* Snow accumulations in the Warning area: 4 to 8 inches. 

* Snow accumulations in the Advisory area: 1 to 3 inches

* Locations in the Warning include: Prospect, Dead Indian Memorial
  Road, and portions of Highways 62, 140, and 227 in the 
  foothills of the Cascades and in the Umpqua Divide. 

* Locations in the Advisory include: Butte Falls, Highways 62 and
  227 north of Shady Cove, and Highway 238 at Jacksonville Hill. 

* Timing: The highest snowfall rates are expected Sunday
  afternoon.

* Impacts: Snowfall could create slippery, snow covered roads, 
  and reduce visibilities to less than a half mile or less at 
  times. 

Precautionary/preparedness actions...

* Stock emergency kit with tire chains, flashlight, batteries, 
  blankets, food, water, and medications. 

* Plan now to avoid traveling during the storm.

* Travel is strongly discouraged because of dangerous conditions.

* A Winter Storm Warning means that severe winter weather is
  likely and poses a threat to life and property. Take protective
  action now.

&&

$$

ORZ025-261200-
/O.UPG.KMFR.WS.A.0010.170226T1800Z-170227T1200Z/
/O.NEW.KMFR.WS.W.0011.170226T1800Z-170227T1200Z/
Eastern Douglas County Foothills-
Including the cities of Steamboat and Toketee Falls
237 PM PST Sat Feb 25 2017

...WINTER STORM WARNING IN EFFECT FROM 10 AM SUNDAY TO 4 AM PST
MONDAY...

The National Weather Service in Medford has upgraded the Winter
Storm Watch to Winter Storm Warning for Heavy Snow...which is in 
effect from 10 AM Sunday to 4 AM PST Monday. 

* Snow accumulations: 4 to 8 inches.

* Timing: The highest snowfall rates, around one inch per hour,
  are likely Sunday afternoon. 

* Locations include: Steamboat, Toketee Falls, and Highway 138. 

* Impacts: Snow will create slippery, snow covered roads, and
  reduce visibilities to less than a half mile or less at times. 

Precautionary/preparedness actions...

* Stock emergency kit with tire chains, flashlight, batteries, 
  blankets, food, water, and medications. 

* Travel is strongly discouraged because of dangerous conditions.

* If you must travel, keep tire chains, a flashlight, blankets, 
  food, water, medications, and a fully charged phone with you.

* A Winter Storm Warning means that severe winter weather is
  likely and poses a threat to life and property. Take protective
  action now.

&&

$$

ORZ029-030-261200-
/O.EXA.KMFR.WW.Y.0021.170226T1800Z-170227T1200Z/
Klamath Basin-
Northern and Eastern Klamath County and Western Lake County-
Including the cities of Chemult and Crescent
237 PM PST Sat Feb 25 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM SUNDAY TO 4 AM
PST MONDAY...

The National Weather Service in Medford has issued a Winter
Weather Advisory for Snow...which is in effect from 10 AM Sunday 
to 4 AM PST Monday. 

* Snow accumulations: 3 to 6 inches.

* Timing: The highest snowfall rates are expected Sunday
  afternoon.

* Locations include: Highway 97 at Modoc Point, and from Spring
  Creek to Crescent.

* Impacts: Roads are expected to become snow covered in heavier
  snow showers. Travel may be difficult at times.

* View the hazard area in detail at 
  http://weather.gov/medford/hazard 

Precautionary/preparedness actions...

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$

ORZ027-028-261200-
/O.CON.KMFR.WW.Y.0021.170226T1800Z-170227T1200Z/
South Central Oregon Cascades-
Siskiyou Mountains and Southern Oregon Cascades-
Including the cities of Crater Lake, Crescent Lake, Diamond Lake,
and Union Creek
237 PM PST Sat Feb 25 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM SUNDAY TO
4 AM PST MONDAY...

* Snow accumulations: 6 to 12 inches. Around 3 inches expected
  near Siskiyou Summit on Interstate 5. 

* Winds: West 15 to 25 mph.

* Timing: Highest snowfall rates, around one inch per hour, are
  expected Sunday afternoon.

* Locations include: Highways 138, 230, and 62 near Diamond Lake
  and Crater Lake. Highway 140 near Lake of the Woods. Mount
  Ashland Ski Road.

* Impacts: Roads are expected to become snow covered in heavier
  snow showers. Blowing snow will reduce visibilities at times to
  less than one quarter mile.

* View the hazard area in detail at 
  http://weather.gov/medford/hazard 

Precautionary/preparedness actions...

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$

CAZ082-261200-
/O.CON.KMFR.WW.Y.0021.170226T1800Z-170227T1200Z/
South Central Siskiyou County-
Including the city of Mccloud
237 PM PST Sat Feb 25 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM SUNDAY TO
4 AM PST MONDAY...

* Snow accumulations: 3 to 6 inches.

* Timing: The highest snowfall rates are expected Sunday
  afternoon.

* Locations include: McCloud, and Highway 89 from Snowman's Summit
  to the Shasta County line.

* Impacts: Roads are expected to become snow covered in heavier
  snow showers. Travel may be difficult at times.

* View the hazard area in detail at 
  http://weather.gov/medford/hazard 

Precautionary/preparedness actions...

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$

CAZ080-261200-
/O.CON.KMFR.WW.Y.0021.170226T1500Z-170227T1200Z/
Western Siskiyou County-
237 PM PST Sat Feb 25 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM SUNDAY TO
4 AM PST MONDAY...

* Snow accumulations: 3 to 6 inches. Up to 1 foot above 3500 
  feet elevation. 

* Elevation: Mostly above 1500 feet.

* Timing: The highest snowfall rates are expected Sunday
  afternoon.

* Locations include: Higher portions of Highway 96 from Seiad
  Valley to Somes Bar. Sawyers Bar Road west of Etna, and the 
  higher terrain of Western Siskiyou County. 

* Impacts: Snow will create slippery, snow covered roads, and
  reduce visibilities to less than a half mile or less, at times.

Precautionary/preparedness actions...

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$
4 follow-up statements
045 
WWUS46 KMFR 261126
WSWMFR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Medford OR
326 AM PST Sun Feb 26 2017

...Snow to impact much of the region today and tonight...

.A cold front will bring lowering snow levels and moderate to
heavy precipitation to Southern Oregon and Northern California today
into tonight. Travel will be impacted on high mountain passes and
the lower passes on Interstate 5 and Highway 199. Occasional 
heavy snow showers this afternoon and evening could quickly cover
roadways and may bring slushy accumulations to some valley 
floors.

ORZ026-270000-
/O.CON.KMFR.WS.W.0011.170226T1800Z-170227T1200Z/
/O.CON.KMFR.WW.Y.0021.170226T1800Z-170227T1200Z/
Jackson County-
Including the city of Ashland
326 AM PST Sun Feb 26 2017

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING
TO 4 AM PST MONDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 4 AM PST MONDAY...

* Snow accumulations in the Warning area: 4 to 8 inches.

* Snow accumulations in the Advisory area: 1 to 3 inches.

* Locations in the Warning include: Prospect, Dead Indian 
  Memorial Road, and portions of Highways 62, 140, and 227 in 
  the foothills of the Cascades and in the Umpqua Divide. 

* Locations in the Advisory include: Interstate 5 from Talent to
  Medford, higher elevation areas in Medford including surrounding
  hills, Butte Falls, Highways 62 and 227 north of Shady Cove,
  Ruch, and Highway 238 at Jacksonville Hill.

* Timing: The highest snowfall rates are expected this afternoon.

* Impacts: Snowfall could create slippery, snow covered roads, and
  reduce visibilities to less than a half mile at times. 

* View the hazard area in detail at http://weather.gov/medford/hazard

Precautionary/preparedness actions...

* Stock emergency kit with tire chains, flashlight, batteries, 
  blankets, food, water, and medications. 

* Plan now to avoid traveling during the storm.

* Travel is strongly discouraged because of dangerous conditions.

* A Winter Storm Warning means that severe winter weather is 
  likely and poses a threat to life and property. Take 
  protective action now. 

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$

ORZ025-270000-
/O.CON.KMFR.WS.W.0011.170226T1800Z-170227T1200Z/
Eastern Douglas County Foothills-
Including the cities of Steamboat and Toketee Falls
326 AM PST Sun Feb 26 2017

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING
TO 4 AM PST MONDAY...

* Snow accumulations: 5 to 10 inches.

* Timing: The highest snowfall rates, around one inch per hour,
  are likely this afternoon. 

* Locations include: Steamboat, Toketee Falls, and Highway 138.

* Impacts: Snow will create slippery, snow covered roads, and
  reduce visibilities to less than a half mile at times.

* View the hazard area in detail at http://weather.gov/medford/hazard

Precautionary/preparedness actions...

* Stock emergency kit with tire chains, flashlight, batteries, 
  blankets, food, water, and medications. 

* Travel is strongly discouraged because of dangerous conditions.

* If you must travel, keep tire chains, a flashlight, blankets, 
  food, water, medications, and a fully charged phone with you. 

* A Winter Storm Warning means that severe winter weather is 
  likely and poses a threat to life and property. Take 
  protective action now. 

&&

$$

ORZ023-024-270000-
/O.CON.KMFR.WW.Y.0021.170226T1500Z-170227T1200Z/
Central Douglas County-Eastern Curry County and Josephine County-
Including the cities of Glendale and Cave Junction
326 AM PST Sun Feb 26 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM THIS
MORNING TO 4 AM PST MONDAY...

* Snow accumulations: 2 to 4 inches with 4 to 8 inches above 2000
  feet..

* Elevation: Generally above 1500 feet.

* Timing: The highest snowfall rates are expected this afternoon.

* Locations include: Glendale, Azalea, Tiller, Interstate 5 from
  Sexton Pass to Canyonville, Cave Junction, Highway 199 from
  Hayes Hill to Obrien, Highway 42 at Camas Mountain Pass, and
  Highway 227.

* Impacts: Any heavier snow showers, even during the afternoon,
  could quickly create slushy conditions on roadways. Snowfall
  will reduce visibilities to less than a half mile at times.

* View the hazard area in detail at http://weather.gov/medford/hazard

Precautionary/preparedness actions...

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

&&

$$

ORZ027-028-270000-
/O.CON.KMFR.WW.Y.0021.170226T1800Z-170227T1200Z/
South Central Oregon Cascades-
Siskiyou Mountains and Southern Oregon Cascades-
Including the cities of Crater Lake, Crescent Lake, Diamond Lake,
and Union Creek
326 AM PST Sun Feb 26 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 4 AM PST MONDAY...

* Snow accumulations: 6 to 12 inches. Around 3 inches expected 
  near Siskiyou Summit on Interstate 5. 

* Winds: West 15 to 25 mph.

* Timing: Highest snowfall rates, around one inch per hour, are
  expected this afternoon. 

* Locations include: Highways 138, 230, and 62 near Diamond Lake 
  and Crater Lake. Highway 140 near Lake of the Woods. Mount 
  Ashland Ski Road. 

* Impacts: Roads are expected to become snow covered in heavier 
  snow showers. Blowing snow will reduce visibilities at times 
  to less than one quarter mile. 

* View the hazard area in detail at http://weather.gov/medford/hazard

Precautionary/preparedness actions...

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$

CAZ080-270000-
/O.CON.KMFR.WW.Y.0021.170226T1500Z-170227T1200Z/
Western Siskiyou County-
326 AM PST Sun Feb 26 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM THIS
MORNING TO 4 AM PST MONDAY...

* Snow accumulations: 3 to 6 inches. Up to 1 foot above 3500 
  feet elevation. 

* Elevation: Mostly above 1500 feet.

* Timing: The highest snowfall rates are expected this afternoon.


* Locations include: Higher portions of Highway 96 from Seiad 
  Valley to Somes Bar. Sawyers Bar Road west of Etna, and the 
  higher terrain of Western Siskiyou County. 

* Impacts: Snow will create slippery, snow covered roads, and 
  reduce visibilities to less than a half mile or less, at 
  times. 

* View the hazard area in detail at http://weather.gov/medford/hazard

Precautionary/preparedness actions...

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$

CAZ082-270000-
/O.CON.KMFR.WW.Y.0021.170226T1800Z-170227T1200Z/
South Central Siskiyou County-
Including the city of Mccloud
326 AM PST Sun Feb 26 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 4 AM PST MONDAY...

* Snow accumulations: 3 to 6 inches.

* Timing: The highest snowfall rates are expected this afternoon.

* Locations include: McCloud, and Highway 89 from Snowman's 
  Summit to the Shasta County line. 

* Impacts: Roads are expected to become snow covered in heavier 
  snow showers. Travel may be difficult at times. 

* View the hazard area in detail at http://weather.gov/medford/hazard

Precautionary/preparedness actions...

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$

ORZ029-030-270000-
/O.CON.KMFR.WW.Y.0021.170226T1800Z-170227T1200Z/
Klamath Basin-
Northern and Eastern Klamath County and Western Lake County-
Including the cities of Chemult and Crescent
326 AM PST Sun Feb 26 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 4 AM PST MONDAY...

* Snow accumulations: 3 to 6 inches.

* Timing: The highest snowfall rates are expected this afternoon.

* Locations include: Highway 97 at Modoc Point, and from Spring 
  Creek to Crescent. 

* Impacts: Roads are expected to become snow covered in heavier 
  snow showers. Travel may be difficult at times. 

* View the hazard area in detail at http://weather.gov/medford/hazard

Precautionary/preparedness actions...

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$

SK
747 
WWUS46 KMFR 261132
WSWMFR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Medford OR
332 AM PST Sun Feb 26 2017

...Snow to impact much of the region today and tonight...

.A cold front will bring lowering snow levels and moderate to
heavy precipitation to Southern Oregon and Northern California
today into tonight. Travel will be impacted on high mountain
passes and the lower passes on Interstate 5 and Highway 199.
Occasional heavy snow showers this afternoon and evening could
quickly cover roadways and may bring slushy accumulations to some
valley floors.

ORZ026-270000-
/O.CON.KMFR.WS.W.0011.170226T1800Z-170227T1200Z/
/O.CON.KMFR.WW.Y.0021.170226T1800Z-170227T1200Z/
Jackson County-
Including the city of Ashland
332 AM PST Sun Feb 26 2017

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING
TO 4 AM PST MONDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 4 AM PST MONDAY...

* Snow accumulations in the Warning area: 4 to 8 inches.

* Snow accumulations in the Advisory area: 1 to 3 inches.

* Elevation: Generally above 1500 feet.

* Locations in the Warning include: Prospect, Dead Indian 
  Memorial Road, and portions of Highways 62, 140, and 227 in 
  the foothills of the Cascades and in the Umpqua Divide. 

* Locations in the Advisory include: Interstate 5 from Phoenix to
  Ashland, higher elevation areas in Medford including surrounding
  hills, Butte Falls, Evans Valley, Highways 62 and 227 near and
  north of Shady Cove, Ruch, and Highway 238 at Jacksonville Hill.

* Timing: The highest snowfall rates are expected this afternoon.

* Impacts: Snowfall could create slippery, snow covered roads, 
  and reduce visibilities to less than a half mile at times. 

* View the hazard area in detail at http://weather.gov/medford/hazard

Precautionary/preparedness actions...

* Stock emergency kit with tire chains, flashlight, batteries, 
  blankets, food, water, and medications. 

* Plan now to avoid traveling during the storm.

* Travel is strongly discouraged because of dangerous conditions.

* A Winter Storm Warning means that severe winter weather is 
  likely and poses a threat to life and property. Take 
  protective action now. 

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$

ORZ025-270000-
/O.CON.KMFR.WS.W.0011.170226T1800Z-170227T1200Z/
Eastern Douglas County Foothills-
Including the cities of Steamboat and Toketee Falls
332 AM PST Sun Feb 26 2017

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING
TO 4 AM PST MONDAY...

* Snow accumulations: 5 to 10 inches.

* Timing: The highest snowfall rates, around one inch per hour, 
  are likely this afternoon. 

* Locations include: Steamboat, Toketee Falls, and Highway 138.

* Impacts: Snow will create slippery, snow covered roads, and 
  reduce visibilities to less than a half mile at times. 

* View the hazard area in detail at 
  http://weather.gov/medford/hazard

Precautionary/preparedness actions...

* Stock emergency kit with tire chains, flashlight, batteries, 
  blankets, food, water, and medications. 

* Travel is strongly discouraged because of dangerous conditions.

* If you must travel, keep tire chains, a flashlight, blankets, 
  food, water, medications, and a fully charged phone with you. 

* A Winter Storm Warning means that severe winter weather is 
  likely and poses a threat to life and property. Take 
  protective action now. 

&&

$$

ORZ023-024-270000-
/O.CON.KMFR.WW.Y.0021.170226T1500Z-170227T1200Z/
Central Douglas County-Eastern Curry County and Josephine County-
Including the cities of Glendale and Cave Junction
332 AM PST Sun Feb 26 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM THIS
MORNING TO 4 AM PST MONDAY...

* Snow accumulations: 2 to 4 inches with 4 to 8 inches above 
  2000 feet.. 

* Elevation: Generally above 1500 feet.

* Timing: The highest snowfall rates are expected this afternoon.

* Locations include: Glendale, Azalea, Tiller, Interstate 5 from 
  Sexton Pass to Canyonville, Cave Junction, Highway 199 from 
  Hayes Hill to Obrien, Highway 42 at Camas Mountain Pass, and 
  Highway 227. 

* Impacts: Any heavier snow showers, even during the afternoon, 
  could quickly create slushy conditions on roadways. Snowfall 
  will reduce visibilities to less than a half mile at times. 

* View the hazard area in detail at 
  http://weather.gov/medford/hazard

Precautionary/preparedness actions...

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

&&

$$

ORZ027-028-270000-
/O.CON.KMFR.WW.Y.0021.170226T1800Z-170227T1200Z/
South Central Oregon Cascades-
Siskiyou Mountains and Southern Oregon Cascades-
Including the cities of Crater Lake, Crescent Lake, Diamond Lake,
and Union Creek
332 AM PST Sun Feb 26 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 4 AM PST MONDAY...

* Snow accumulations: 6 to 12 inches. Around 3 inches expected 
  near Siskiyou Summit on Interstate 5. 

* Winds: West 15 to 25 mph.

* Timing: Highest snowfall rates, around one inch per hour, are 
  expected this afternoon. 

* Locations include: Highways 138, 230, and 62 near Diamond Lake 
  and Crater Lake. Highway 140 near Lake of the Woods. Mount 
  Ashland Ski Road. 

* Impacts: Roads are expected to become snow covered in heavier 
  snow showers. Blowing snow will reduce visibilities at times 
  to less than one quarter mile. 

* View the hazard area in detail at 
  http://weather.gov/medford/hazard

Precautionary/preparedness actions...

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$

CAZ080-270000-
/O.CON.KMFR.WW.Y.0021.170226T1500Z-170227T1200Z/
Western Siskiyou County-
332 AM PST Sun Feb 26 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 AM THIS
MORNING TO 4 AM PST MONDAY...

* Snow accumulations: 3 to 6 inches. Up to 1 foot above 3500 
  feet elevation. 

* Elevation: Mostly above 1500 feet.

* Timing: The highest snowfall rates are expected this afternoon.

* Locations include: Higher portions of Highway 96 from Seiad 
  Valley to Somes Bar. Sawyers Bar Road west of Etna, and the 
  higher terrain of Western Siskiyou County. 

* Impacts: Snow will create slippery, snow covered roads, and 
  reduce visibilities to less than a half mile or less, at 
  times. 

* View the hazard area in detail at 
  http://weather.gov/medford/hazard

Precautionary/preparedness actions...

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$

CAZ082-270000-
/O.CON.KMFR.WW.Y.0021.170226T1800Z-170227T1200Z/
South Central Siskiyou County-
Including the city of Mccloud
332 AM PST Sun Feb 26 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 4 AM PST MONDAY...

* Snow accumulations: 3 to 6 inches.

* Timing: The highest snowfall rates are expected this afternoon.

* Locations include: McCloud, and Highway 89 from Snowman's 
  Summit to the Shasta County line. 

* Impacts: Roads are expected to become snow covered in heavier 
  snow showers. Travel may be difficult at times. 

* View the hazard area in detail at 
  http://weather.gov/medford/hazard

Precautionary/preparedness actions...

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$

ORZ029-030-270000-
/O.CON.KMFR.WW.Y.0021.170226T1800Z-170227T1200Z/
Klamath Basin-
Northern and Eastern Klamath County and Western Lake County-
Including the cities of Chemult and Crescent
332 AM PST Sun Feb 26 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 4 AM PST MONDAY...

* Snow accumulations: 3 to 6 inches.

* Timing: The highest snowfall rates are expected this afternoon.

* Locations include: Highway 97 at Modoc Point, and from Spring 
  Creek to Crescent. 

* Impacts: Roads are expected to become snow covered in heavier 
  snow showers. Travel may be difficult at times. 

* View the hazard area in detail at 
  http://weather.gov/medford/hazard

Precautionary/preparedness actions...

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$
307 
WWUS46 KMFR 262244
WSWMFR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Medford OR
244 PM PST Sun Feb 26 2017


ORZ026-271200-
/O.CON.KMFR.WS.W.0011.000000T0000Z-170227T1200Z/
/O.CON.KMFR.WW.Y.0021.000000T0000Z-170227T1200Z/
Jackson County-
Including the city of Ashland
244 PM PST Sun Feb 26 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST MONDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST
MONDAY...

* Snow accumulations in the Warning area: 4 to 8 inches.

* Snow accumulations in the Advisory area: 1 to 3 inches.

* Elevation: Generally above 1500 feet.

* Locations in the Warning include: Prospect, Dead Indian 
  Memorial Road, and portions of Highways 62, 140, and 227 in 
  the foothills of the Cascades and in the Umpqua Divide. 

* Locations in the Advisory include: Interstate 5 from Phoenix 
  to Ashland, higher elevation areas in Medford including 
  surrounding hills, Butte Falls, Evans Valley, Highways 62 and 
  227 near and north of Shady Cove, Ruch, and Highway 238 at 
  Jacksonville Hill. 

* Timing: The highest snowfall rates are expected this afternoon.

* Impacts: Snowfall could create slippery, snow covered roads, 
  and reduce visibilities to less than a half mile at times. 

* View the hazard area in detail at 
  http://weather.gov/medford/hazard

Precautionary/preparedness actions...

* Stock emergency kit with tire chains, flashlight, batteries, 
  blankets, food, water, and medications. 

* Plan now to avoid traveling during the storm.

* Travel is strongly discouraged because of dangerous conditions.

* A Winter Storm Warning means that severe winter weather is 
  likely and poses a threat to life and property. Take 
  protective action now. 

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$

ORZ025-271200-
/O.CON.KMFR.WS.W.0011.000000T0000Z-170227T1200Z/
Eastern Douglas County Foothills-
Including the cities of Steamboat and Toketee Falls
244 PM PST Sun Feb 26 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 AM PST MONDAY...

* Snow accumulations: 5 to 10 inches.

* Timing: The highest snowfall rates, around one inch per hour, 
  are likely this afternoon. 

* Locations include: Steamboat, Toketee Falls, and Highway 138.

* Impacts: Snow will create slippery, snow covered roads, and 
  reduce visibilities to less than a half mile at times. 

* View the hazard area in detail at 
  http://weather.gov/medford/hazard 

Precautionary/preparedness actions...

* Stock emergency kit with tire chains, flashlight, batteries, 
  blankets, food, water, and medications. 

* Travel is strongly discouraged because of dangerous conditions.

* If you must travel, keep tire chains, a flashlight, blankets, 
  food, water, medications, and a fully charged phone with you. 

* A Winter Storm Warning means that severe winter weather is 
  likely and poses a threat to life and property. Take 
  protective action now. 

&&

$$

ORZ023-024-271200-
/O.CON.KMFR.WW.Y.0021.000000T0000Z-170227T1200Z/
Central Douglas County-Eastern Curry County and Josephine County-
Including the cities of Glendale and Cave Junction
244 PM PST Sun Feb 26 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST
MONDAY...

* Snow accumulations: 2 to 4 inches with 4 to 8 inches above 
  2000 feet.. 

* Elevation: Generally above 1500 feet.

* Timing: The highest snowfall rates are expected this afternoon.

* Locations include: Glendale, Azalea, Tiller, Interstate 5 from 
  Sexton Pass to Canyonville, Cave Junction, Highway 199 from 
  Hayes Hill to Obrien, Highway 42 at Camas Mountain Pass, and 
  Highway 227. 

* Impacts: Any heavier snow showers, even during the afternoon, 
  could quickly create slushy conditions on roadways. Snowfall 
  will reduce visibilities to less than a half mile at times. 

* View the hazard area in detail at 
  http://weather.gov/medford/hazard 

Precautionary/preparedness actions...

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

&&

$$

ORZ027-028-271200-
/O.CON.KMFR.WW.Y.0021.000000T0000Z-170227T1200Z/
South Central Oregon Cascades-
Siskiyou Mountains and Southern Oregon Cascades-
Including the cities of Crater Lake, Crescent Lake, Diamond Lake,
and Union Creek
244 PM PST Sun Feb 26 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST
MONDAY...

* Snow accumulations: 6 to 12 inches. Around 3 inches expected 
  near Siskiyou Summit on Interstate 5. 

* Winds: West 15 to 25 mph.

* Timing: Highest snowfall rates, around one inch per hour, are 
  expected this afternoon. 

* Locations include: Highways 138, 230, and 62 near Diamond Lake 
  and Crater Lake. Highway 140 near Lake of the Woods. Mount 
  Ashland Ski Road. 

* Impacts: Roads are expected to become snow covered in heavier 
  snow showers. Blowing snow will reduce visibilities at times 
  to less than one quarter mile. 

* View the hazard area in detail at 
  http://weather.gov/medford/hazard 

Precautionary/preparedness actions...

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$

CAZ080-271200-
/O.CON.KMFR.WW.Y.0021.000000T0000Z-170227T1200Z/
Western Siskiyou County-
244 PM PST Sun Feb 26 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST
MONDAY...

* Snow accumulations: 3 to 6 inches. Up to 1 foot above 3500 
  feet elevation. 

* Elevation: Mostly above 1500 feet.

* Timing: The highest snowfall rates are expected this afternoon.

* Locations include: Higher portions of Highway 96 from Seiad 
  Valley to Somes Bar. Sawyers Bar Road west of Etna, and the 
  higher terrain of Western Siskiyou County. 

* Impacts: Snow will create slippery, snow covered roads, and 
  reduce visibilities to less than a half mile or less, at 
  times. 

* View the hazard area in detail at 
  http://weather.gov/medford/hazard 

Precautionary/preparedness actions...

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$

CAZ082-271200-
/O.CON.KMFR.WW.Y.0021.000000T0000Z-170227T1200Z/
South Central Siskiyou County-
Including the city of Mccloud
244 PM PST Sun Feb 26 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST
MONDAY...

* Snow accumulations: 3 to 6 inches.

* Timing: The highest snowfall rates are expected this afternoon.

* Locations include: McCloud, and Highway 89 from Snowman's 
  Summit to the Shasta County line. 

* Impacts: Roads are expected to become snow covered in heavier 
  snow showers. Travel may be difficult at times. 

* View the hazard area in detail at 
  http://weather.gov/medford/hazard 

Precautionary/preparedness actions...

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$

ORZ029-030-271200-
/O.CON.KMFR.WW.Y.0021.000000T0000Z-170227T1200Z/
Klamath Basin-
Northern and Eastern Klamath County and Western Lake County-
Including the cities of Chemult and Crescent
244 PM PST Sun Feb 26 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST
MONDAY...

* Snow accumulations: 3 to 6 inches.

* Timing: The highest snowfall rates are expected this afternoon.

* Locations include: Highway 97 at Modoc Point, and from Spring 
  Creek to Crescent. 

* Impacts: Roads are expected to become snow covered in heavier 
  snow showers. Travel may be difficult at times. 

* View the hazard area in detail at 
  http://weather.gov/medford/hazard 

Precautionary/preparedness actions...

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$
945 
WWUS46 KMFR 270941
WSWMFR

URGENT - WINTER WEATHER MESSAGE
National Weather Service Medford OR
141 AM PST Mon Feb 27 2017

ORZ026-271045-
/O.CAN.KMFR.WS.W.0011.000000T0000Z-170227T1200Z/
/O.CAN.KMFR.WW.Y.0021.000000T0000Z-170227T1200Z/
Jackson County-
141 AM PST Mon Feb 27 2017

...WINTER STORM WARNING IS CANCELLED...
...WINTER WEATHER ADVISORY IS CANCELLED...

Snow showers are diminishing this morning.

$$

ORZ025-280000-
/O.CAN.KMFR.WS.W.0011.000000T0000Z-170227T1200Z/
/O.NEW.KMFR.WW.Y.0022.170227T2100Z-170228T1800Z/
Eastern Douglas County Foothills-
Including the city of Toketee Falls
141 AM PST Mon Feb 27 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO
10 AM PST TUESDAY...

The National Weather Service in Medford has issued a Winter
Weather Advisory for Snow...which is in effect from 1 PM this 
afternoon to 10 AM PST Tuesday. 

* Snow accumulations: 3 to 6 inches.

* Timing: The heaviest periods of snowfall are expected this
  afternoon and early Tuesday morning. 

* Locations include: Steamboat, Toketee Falls, and Highway 138.

* Impacts: Snow will create slippery, snow covered roads, and 
  reduce visibilities to less than a half mile at times. 

* View the hazard area in detail at http://weather.gov/medford/hazard

Precautionary/preparedness actions...

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$

CAZ080-082-ORZ023-024-029-030-271045-
/O.CAN.KMFR.WW.Y.0021.000000T0000Z-170227T1200Z/
Western Siskiyou County-South Central Siskiyou County-
Central Douglas County-Eastern Curry County and Josephine County-
Klamath Basin-
Northern and Eastern Klamath County and Western Lake County-
141 AM PST Mon Feb 27 2017

...WINTER WEATHER ADVISORY IS CANCELLED...

Snow showers are diminishing.

$$

ORZ027-028-271200-
/O.CON.KMFR.WW.Y.0021.000000T0000Z-170227T1200Z/
South Central Oregon Cascades-
Siskiyou Mountains and Southern Oregon Cascades-
Including the cities of Crater Lake, Crescent Lake, Diamond Lake,
and Union Creek
141 AM PST Mon Feb 27 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST EARLY
THIS MORNING...

* Snow accumulations: 1 to 3 additional inches are expected this
  morning.

* Locations include: Highways 138, 230, and 62 near Diamond Lake 
  and Crater Lake. Highway 140 near Lake of the Woods. Mount 
  Ashland Ski Road. 

* Impacts: Roads are expected to become snow covered in heavier 
  snow showers. Blowing snow will reduce visibilities at times 
  to less than one quarter mile. 

* View the hazard area in detail at http://weather.gov/medford/hazard

Precautionary/preparedness actions...

* Slow down and allow extra time to reach your destination.

* Carry tire chains and be prepared for snow covered roads and 
  limited visibilities. 

* See weather.gov/Medford/Cams for latest road conditions.

* A Winter Weather Advisory for snow means that periods of snow 
  will cause travel difficulties. 

&&

$$

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Medford, OR wrote its last area forecast discussion before this winter storm warning went out at Feb 25, 8:02 AM PST, 6 hours 35 minutes earlier.

Area forecast discussion, Feb 25, 8:02 AM PST, 6 hours 35 minutes before
Area Forecast Discussion
National Weather Service Medford OR
802 AM PST Sat Feb 25 2017

.UPDATE...No significant updates were needed this morning, as the
forecast appears to be on track. RADAR imagery is showing very
little in the way of returns this morning, but do not doubt there
are some local light showers occurring in some areas, mainly in
the southern half of the forecast area, but nothing that should
produce any impacts. Focus for the day will be on the Sunday
system, refining the snow amounts, and confirming the areas of
likely impact. For more information, see the previous discussion
below. -BPN

&&

.AVIATION...25/12z TAF CYCLE...Areas of IFR cigs/vsbys over the
west side valleys in low clouds and fog will clear to VFR by late
this morning. Areas of MVFR cigs/vsbys in rain and snow will
return to the west side late tonight with higher terrain becoming
obscured. The remainder of the area will remain VFR through this
evening. Areas of MVFR cigs/vsbys in rain and snow with areas of
higher terrain becoming obscured will develop late tonight. -JRS

&&

.MARINE...Updated 800 AM PST Saturday 25 February 2017...Low
pressure off the southern Oregon coast will move south of the area
later this morning. Southerly winds will become northerly late
this afternoon. Showers will taper off as high pressure builds
in. Tonight through Monday, another cold low pressure system will
move through from the north. This will bring small craft winds
and seas to the area Sunday. The winds will diminish Sunday
night...but steep seas will persist through Monday. Offshore high
pressure will build Tuesday into Wednesday. -JRS

&&

.PREV DISCUSSION... /Issued 356 AM PST Sat Feb 25 2017/

DISCUSSION...The most recent coastal low is pushing to the south,
and it's effects on the forecast area are diminishing. Some snow
is still being observed at Alturas, and about another inch of snow
is expected there before snow tapers off. Some morning fog is
impacting West Side valleys this morning, and there is a Dense Fog
Advisory out for the Umpqua Basin. We expect visibilities to
improve later this morning. Temperatures today should be about 10
degrees below normal under a continued cold air mass.

The third low, and likely most significant, in a string of cold low
pressure systems will swing through on Sunday, and tonight's
forecast efforts have focused on that. Timing, temperatures, and
shower intensity/coverage are critical factors in the forecast
for Sunday. A cold front will bring moderate to heavy
precipitation with it on Sunday from northwest to southeast. We
have kept forecast temperatures below MOS guidance for Sunday
based on thick cloud cover and precipitation expected for much of
the day. Heavy showers at times will bring down the cold air
aloft, so we have forecast snow levels at 1000-1500 feet below
freezing levels. The current thinking is that roadways won't be
covered all day because of any breaks allowing late Feb solar
effects to warm roadways, but occasional snow covered roadways are
likely on the lower mountain passes on Interstate 5
(Sexton/Canyon Mtn Pass) and Highway 199 (Hayes Hill). Colder
temperatures will be more favorable for continual snow covered
roadways in the higher Cascades. For lower valleys like the Rogue,
snow is expected, but we are expecting Sunday afternoon
temperatures to prevent continual accumulation of snow, so we
haven't issued an advisory for Medford, etc. We'll of course
continue to monitor latest data for snow potential there. If
showers continue into Sunday evening, more snow will be possible
in the Rogue Valley. We have issued some Winter Weather Advisories
for the aforementioned expected impacts, and we have continued
Winter Storm Watches for the Cascades foothills where unusually
heavy snow accumulations are still possible above 2500 feet.

After the main batch of precipitation Sunday and Sunday night, most
models show continued shortwave activity in the cold northwest flow,
bringing continued chances for low elevation snow. Much of the snow
will likely impact areas from the Umpqua Divide northward, so the
lower passes of Interstate 5 (Sexton Pass, etc) could still see
winter weather impacts into early next week. Conditions dry out and
warm up late Tuesday into Wednesday. Please see the previous
long-term discussion which is still relevant to the upcoming
weather pattern.

Tuesday through Friday...The operational models are
in pretty good agreement in this time period. The pattern will be
rather quiet with little or no chance of precipitation. A
northwest flow continues Tuesday with increasing 500 mb heights.
The models still show some QPF, but they are not as bullish as
they were yesterday. Even then suspect they are still overdone
given 500mb heights will be on the rise as the upper trough moves
east of our area. However the ECMWF shows weak pva moving in the
northwest flow during the day, so we'll keep a slight chance
mention. Confidence is high it will be dry from next Wednesday
through the end of next week as the storm track shifts well north
of the area. Of note, the GFS shows more of a dirty ridge
scenario, but still keeps all of the QPF north of our area, but it
could mean more cloud cover and slightly cooler afternoon
temperatures.

We could be dealing with an increasing subsidence inversion next
Wednesday through Friday which means the valleys could stay cool and
the ridges milder. -Petrucelli

&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...Winter Weather Advisory from 10 AM Sunday to 4 AM PST Monday for
     ORZ027-028.
     Winter Weather Advisory from 7 AM Sunday to 4 AM PST Monday
     for ORZ023-024.
     Winter Storm Watch from Sunday morning through late Sunday
 night for ORZ024.

CA...Winter Weather Advisory from 10 AM Sunday to 4 AM PST Monday for
     CAZ082.
     Winter Weather Advisory from 7 AM Sunday to 4 AM PST Monday for
     CAZ080.

Pacific Coastal Waters...Small Craft Advisory for hazardous seas from
     7 AM Sunday to 10 PM PST Monday for PZZ350-356-370-376.

BPN/NSK/JRS/MAP

The office that day

Everything else NWS Medford, OR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 25, 1:28 AM PSTDense Fog AdvisoryMFRCoos, Douglas7 hr
Feb 25, 2:35 AM PSTSmall Craft Advisory for Hazardous SeasMFR3 days
Feb 25, 3:19 AM PSTWinter Weather AdvisoryMFRCoos, Curry, Douglas, Jackson, Josephine, Klamath and 1 more49 hr

Nearby

Winter Storm Warnings in Oregon, 2017Every winter storm warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.