Alert archive / Oregon / High Wind Warnings in 2020

High Wind Warning 8, NWS Medford, OR

December 24, 20205 counties in Oregon; Modoc County, Siskiyou County, California

NWS Medford, OR issued this high wind warning at Dec 24, 2020, 2:01 AM PST for 5 counties in Oregon; Modoc County, Siskiyou County, California. It took effect at Dec 25, 2020, 5:00 AM PST. It was in force for 17 hr. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Dec 24, 2020, 2:01 AM PST (10:01 UTC)
In effect from
Dec 25, 2020, 5:00 AM PST
Expired
Dec 25, 2020, 9:48 PM PST
In force
17 hr
Issued by
NWS Medford, OR

Counties Modoc County, CA, Siskiyou County, CA, Coos County, OR, Curry County, OR, Douglas County, OR, Klamath County, OR, Lake County, OR

The radar

The Medford radar (KMAX), 55 km from the middle of the area, began a volume at 09:59 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.

What was reported inside it

TimeReportWhereRemark
Dec 25, 7:39 PM PSTNON-TSTM WND GST 433 Ese Lake City, CAMESONET STATION SSYC1 SURPRISE VALLEY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Medford/Jackson, OR (KMFR), launched 00:00Z, 10.0 hours before the alert went out and 37 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 00:00Z on 2020-12-24Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Medford/Jackson, OR at 00:00Z on 2020-12-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 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
2754 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

449 
WWUS76 KMFR 241001
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
201 AM PST Thu Dec 24 2020

CAZ081-242315-
/O.UPG.KMFR.HW.A.0007.201225T1800Z-201226T0600Z/
/O.NEW.KMFR.HW.W.0008.201225T1800Z-201226T0600Z/
Central Siskiyou County-
Including the cities of Weed and Yreka
201 AM PST Thu Dec 24 2020

...HIGH WIND WARNING IN EFFECT FROM 10 AM TO 10 PM PST FRIDAY...

* WHAT...South winds 25 to 40 mph with gusts up to 60 mph 
  expected.

* WHERE...Shasta Valley in Siskiyou County from Weed north to
  about Yreka. The strongest winds will be in the south end of the
  Valley.

* WHEN...From 10 AM to 10 PM PST Friday.

* IMPACTS...Damaging winds will blow down trees and power lines.
  Power outages are possible. Travel will be difficult,  
  especially for high profile vehicles.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

ORZ030-031-242315-
/O.NEW.KMFR.WI.Y.0027.201225T1800Z-201226T1200Z/
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
201 AM PST Thu Dec 24 2020

...WIND ADVISORY IN EFFECT FROM 10 AM FRIDAY TO 4 AM PST
SATURDAY...

* WHAT...Southwest winds to 20 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...Areas of exposed, high terrain in Klamath and Lake
  Counties. This also includes Highway 31 from Paisley to Summer 
  Lake.

* WHEN...From 10 AM Friday to 4 AM PST Saturday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...2 to 4 inches of snow will be possible in
  these areas as well, which may limit visibility on roads.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

Visit us at https://www.weather.gov/Medford
7 follow-up statements
211 
WWUS76 KMFR 242230
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
230 PM PST Thu Dec 24 2020

CAZ081-251030-
/O.CON.KMFR.HW.W.0008.201225T1800Z-201226T0600Z/
Central Siskiyou County-
Including the cities of Weed and Yreka
230 PM PST Thu Dec 24 2020

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

* WHAT...South winds 25 to 40 mph with gusts up to 60 mph 
  expected.

* WHERE...Shasta Valley in Siskiyou County from Weed north to 
  about Yreka. The strongest winds will be in the south end of 
  the Valley.

* WHEN...From 10 AM to 10 PM PST Friday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, 
  especially for high profile vehicles.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

ORZ030-031-251030-
/O.CON.KMFR.WI.Y.0027.201225T1800Z-201226T1200Z/
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
230 PM PST Thu Dec 24 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM FRIDAY TO 4 AM PST
SATURDAY...

* WHAT...Southwest winds to 20 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...Areas of exposed, high terrain in Klamath and Lake 
  Counties. This also includes Highway 31 from Paisley to Summer 
  Lake.

* WHEN...From 10 AM Friday to 4 AM PST Saturday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...2 to 4 inches of snow will be possible in 
  these areas as well, which may limit visibility on roads.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

Visit us at https://www.weather.gov/Medford
664 
WWUS76 KMFR 250120
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
520 PM PST Thu Dec 24 2020

ORZ021-022-251500-
/O.EXB.KMFR.HW.W.0008.201225T1400Z-201226T0000Z/
South Central Oregon Coast-Curry County Coast-
Including the cities of Bandon, Port Orford, Brookings, Harbor, 
and Gold Beach
520 PM PST Thu Dec 24 2020

...HIGH WIND WARNING IN EFFECT FROM 6 AM TO 4 PM PST FRIDAY...

* WHAT...South winds 25 to 40 mph with gusts up to 60 mph 
  expected.

* WHERE...South Central Oregon Coast and Curry County Coast. This
  includes the area from Cape Arago to Brookings. Winds will be 
  strongest at headlands and exposed areas, including the vicinity
  of Gold Beach

* WHEN...From 6 AM to 4 PM PST Friday.

* IMPACTS...Damaging winds may blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, especially
  for high profile vehicles.

* ADDITIONAL DETAILS...

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ081-251500-
/O.EXT.KMFR.HW.W.0008.201225T1500Z-201226T0300Z/
Central Siskiyou County-
Including the cities of Weed and Yreka
520 PM PST Thu Dec 24 2020

...HIGH WIND WARNING NOW IN EFFECT FROM 7 AM TO 7 PM PST FRIDAY...

* WHAT...South winds 25 to 40 mph with gusts up to 60 mph 
  expected.

* WHERE...Shasta Valley in Siskiyou County. This includes Weed,
  Gazelle, Grenada, and Montague. The strongest winds will be in
  the south end of the Valley.

* WHEN...From 7 AM to 7 PM PST Friday. The strongest winds will
  occur from late morning through early afternoon.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Power outages are possible. Travel will be difficult, 
  especially for high profile vehicles.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

ORZ026-251500-
/O.EXB.KMFR.WI.Y.0027.201225T1500Z-201226T0300Z/
Jackson County-
Including the cities of Medford and Ashland
520 PM PST Thu Dec 24 2020

...WIND ADVISORY IN EFFECT FROM 7 AM TO 7 PM PST FRIDAY...

* WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph 
  expected.

* WHERE...Jackson County from Ashland to the southern portion of
  Medford. This includes Talent and Phoenix.

* WHEN...From 7 AM to 7 PM PST Friday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

ORZ030-031-251500-
/O.CON.KMFR.WI.Y.0027.201225T1800Z-201226T1200Z/
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
520 PM PST Thu Dec 24 2020

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM FRIDAY TO 4 AM PST
SATURDAY...

* WHAT...Southwest winds 20 to 35 mph with gusts up to 55 mph 
  expected.

* WHERE...Areas of exposed, high terrain in eastern Klamath and
  Lake Counties. This includes Highway 31 from Paisley to Summer 
  Lake.

* WHEN...From 10 AM Friday to 4 AM PST Saturday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...2 to 4 inches of snow will be possible in 
  these areas as well, which may limit visibility on roads.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

Visit us at https://www.weather.gov/Medford
617 
WWUS76 KMFR 251300
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
500 AM PST Fri Dec 25 2020

ORZ030-031-260000-
/O.UPG.KMFR.WI.Y.0027.201225T1800Z-201226T1200Z/
/O.EXB.KMFR.HW.W.0008.201225T1800Z-201226T1200Z/
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the city of Valley Falls
500 AM PST Fri Dec 25 2020

...HIGH WIND WARNING IN EFFECT FROM 10 AM THIS MORNING TO 4 AM
PST SATURDAY...

* WHAT...Southwest winds 25 to 40 mph with gusts 55 to 75 mph 
  expected.

* WHERE...Portions of Highway 31 between Lakeview and Summer Lake
  including Valley Falls. Portions of Highway 395 between the
  Oregon-California border and Alkali Lake. Portions of Highway 
  140 east of Lakeview to the Oregon-Nevada border. The higher 
  terrain of Northern and Eastern Klamath County and Western Lake 
  County and Central and Eastern Lake County, including the Warner
  Mountains, will also be affected.

* WHEN...From 10 AM this morning to 4 AM PST Saturday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

* ADDITIONAL DETAILS...The strongest winds are likely to be over
  the Warner Mountains, in the Summer Lake and Valley Falls areas,
  and near the Nevada border. Winds are likely to peak between 1
  PM and 7 PM PST. 2 to 5 inches of snow will be possible in these
  areas, as well, leading to slippery conditions and reduced
  visibilities, at times.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ085-260000-
/O.EXB.KMFR.HW.W.0008.201225T1800Z-201226T1200Z/
Modoc County-
500 AM PST Fri Dec 25 2020

...HIGH WIND WARNING IN EFFECT FROM 10 AM THIS MORNING TO 4 AM
PST SATURDAY...

* WHAT...South winds 30 to 45 mph with gusts 55 to 70 mph 
  expected.

* WHERE...The mountains of Modoc County above 5500 foot elevations
  including the Warner Mountains, particularly Highway 299 between
  Alturas and Cedarville.

* WHEN...From 10 AM this morning to 4 AM PST Saturday.

* IMPACTS...These strong winds could blow down trees and power 
  lines. Power outages are possible. Travel will be difficult, 
  especially for high profile vehicles.

* ADDITIONAL DETAILS...Snow is possible during this High Wind
  Warning period, particularly late this evening into Saturday
  morning when 2 to 4 inches is possible. This snowfall would
  result in reduced visibilities and the potential for slick road
  conditions. Winds are likely to peak between 5 PM and 11 PM PST.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ081-260000-
/O.EXT.KMFR.HW.W.0008.201225T1300Z-201226T0300Z/
Central Siskiyou County-
Including the city of Weed
500 AM PST Fri Dec 25 2020

...HIGH WIND WARNING NOW IN EFFECT UNTIL 7 PM PST THIS EVENING...

* WHAT...South winds 25 to 40 mph with gusts 55 to 70 mph 
  expected.

* WHERE...Portions of Interstate 5 from the Weed area to Grenada.
  Also, portions of Interstate 5 and Highway 99 north of Yreka to
  the Klamath River. Highway 97 from Weed to near Grass Valley.
  This includes Weed, Gazelle, Grenada, and Montague. The
  strongest winds are likely to be in the south end of the 
  Valley.

* WHEN...Until 7 PM PST this evening. The strongest winds are
  expected to be between 1 PM and 4 PM PST this afternoon.

* IMPACTS...These strong winds will have the potential to blow
  down trees and damage power lines. Power outages are possible. 
  Travel will be difficult, especially for high profile vehicles.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

ORZ021-022-260000-
/O.CON.KMFR.HW.W.0008.201225T1400Z-201226T0000Z/
South Central Oregon Coast-Curry County Coast-
Including the cities of Bandon, Port Orford, Brookings, Harbor, 
and Gold Beach
500 AM PST Fri Dec 25 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* WHAT...South winds 25 to 40 mph with gusts up to 60 mph 
  expected.

* WHERE...South Central Oregon Coast and Curry County Coast. 
  This includes the area from Cape Arago to Brookings. Winds 
  will be strongest at headlands and exposed areas, including 
  the vicinity of Gold Beach.

* WHEN...From 6 AM to 4 PM PST Friday.

* IMPACTS...These strong winds will have the potential to blow
  down trees and power lines. Power outages are possible. Travel
  will be difficult, especially for high profile vehicles.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ084-ORZ029-260000-
/O.EXB.KMFR.WI.Y.0027.201225T2000Z-201226T0600Z/
Northeast Siskiyou and Northwest Modoc Counties-Klamath Basin-
Including the cities of Dorris, Macdoel, Altamont, 
and Klamath Falls
500 AM PST Fri Dec 25 2020

...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 10 PM PST THIS
EVENING...

* WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph 
  expected.

* WHERE...In California, Northeast Siskiyou and Northwest Modoc
  Counties. In Oregon, Klamath Basin. These areas include Modoc
  Point, Klamath Falls, Midland, Worden, Keno, Dorris, and MacDoel
  including portions of highway 97, 66, 140, and 139.

* WHEN...From noon today to 10 PM PST this evening.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree
  limbs could be blown down and a few power outages could result.

* ADDITIONAL DETAILS...The strongest winds are expected between 1
  PM and 7 PM PST.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

ORZ023>025-260000-
/O.EXB.KMFR.WI.Y.0027.201225T1500Z-201226T0600Z/
Central Douglas County-Eastern Curry County and Josephine County-
Eastern Douglas County Foothills-
500 AM PST Fri Dec 25 2020

...WIND ADVISORY IN EFFECT UNTIL 10 PM PST THIS EVENING...

* WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph 
  expected.

* WHERE...Portions of Highway 199 from the California-Oregon
  border to south of Obrien, portions of Interstate 5 from Azalea
  to south of Tri-City and mainly areas above the valley floors 
  of Central Douglas County, Eastern Curry County and Josephine 
  County and Eastern Douglas County Foothills.

* WHEN...Until 10 PM PST this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...While winds will generally affect mid and
  upper elevations, these stronger gusty winds could mix into some
  of the lower valleys between 1 PM PST this afternoon into this
  evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

ORZ026-260000-
/O.EXT.KMFR.WI.Y.0027.201225T1300Z-201226T0300Z/
Jackson County-
Including the cities of Medford and Ashland
500 AM PST Fri Dec 25 2020

...WIND ADVISORY NOW IN EFFECT UNTIL 7 PM PST THIS EVENING...

* WHAT...Southwest winds 20 to 30 mph with gusts 45 to 55 mph 
  expected. Locally higher gusts up to 60 mph are possible, 

* WHERE...Jackson County from Ashland to the southern portion of 
  Medford. This includes Talent and Phoenix.

* WHEN...Until 7 PM PST this evening. The strongest winds are
  likely to occur between 7 AM and 1 PM PST.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$
BTL
Visit us at https://www.weather.gov/Medford
832 
WWUS76 KMFR 252251
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
251 PM PST Fri Dec 25 2020

CAZ081-260300-
/O.CON.KMFR.HW.W.0008.000000T0000Z-201226T0300Z/
Central Siskiyou County-
Including the city of Weed
251 PM PST Fri Dec 25 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS
EVENING...

* WHAT...South winds 25 to 40 mph with gusts 55 to 70 mph 
  expected.

* WHERE...Portions of Interstate 5 from the Weed area to 
  Grenada. Also, portions of Interstate 5 and Highway 99 north 
  of Yreka to the Klamath River. Highway 97 from Weed to near 
  Grass Valley. This includes Weed, Gazelle, Grenada, and 
  Montague. The strongest winds are likely to be in the south 
  end of the Valley.

* WHEN...Until 7 PM PST this evening. The strongest winds are 
  expected to be between 1 PM and 4 PM PST this afternoon.

* IMPACTS...These strong winds will have the potential to blow 
  down trees and damage power lines. Power outages are possible. 
  Travel will be difficult, especially for high profile vehicles.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

ORZ021-022-260000-
/O.CON.KMFR.HW.W.0008.000000T0000Z-201226T0000Z/
South Central Oregon Coast-Curry County Coast-
Including the cities of Bandon, Port Orford, Brookings, Harbor, 
and Gold Beach
251 PM PST Fri Dec 25 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* WHAT...South winds 25 to 40 mph with gusts up to 60 mph 
  expected.

* WHERE...South Central Oregon Coast and Curry County Coast. 
  This includes the area from Cape Arago to Brookings. Winds 
  will be strongest at headlands and exposed areas, including 
  the vicinity of Gold Beach.

* WHEN...Now to 4 PM PST Friday.

* IMPACTS...These strong winds will have the potential to blow 
  down trees and power lines. Power outages are possible. Travel 
  will be difficult, especially for high profile vehicles.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ085-ORZ030-031-261100-
/O.CON.KMFR.HW.W.0008.000000T0000Z-201226T1200Z/
Modoc County-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the city of Valley Falls
251 PM PST Fri Dec 25 2020

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

* WHAT...Southwest winds 25 to 40 mph with gusts 55 to 75 mph 
  expected.

* WHERE...Portions of Highway 31 between Lakeview and Summer 
  Lake including Valley Falls. Portions of Highway 395 between 
  the Oregon-California border and Alkali Lake. Portions of 
  Highway 140 east of Lakeview to the Oregon-Nevada border. The 
  higher terrain of Northern and Eastern Klamath County and 
  Western Lake County and Central and Eastern Lake County, 
  including the Warner Mountains, will also be affected.

* WHEN...Now to 4 AM PST Saturday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

* ADDITIONAL DETAILS...The strongest winds are likely to be over 
  the Warner Mountains, in the Summer Lake and Valley Falls 
  areas, and near the Nevada border. Winds are likely to peak 
  between 1 PM and 7 PM PST. 2 to 5 inches of snow will be 
  possible in these areas, as well, leading to slippery 
  conditions and reduced visibilities, at times.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

ORZ026-260300-
/O.CON.KMFR.WI.Y.0027.000000T0000Z-201226T0300Z/
Jackson County-
Including the cities of Medford and Ashland
251 PM PST Fri Dec 25 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING...

* WHAT...Southwest winds 20 to 30 mph with gusts 45 to 55 mph 
  expected. Locally higher gusts up to 60 mph are possible,.

* WHERE...Jackson County from Ashland to the southern portion of 
  Medford. This includes Talent and Phoenix.

* WHEN...Until 7 PM PST this evening. The strongest winds are 
  likely to occur between 7 AM and 1 PM PST.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

CAZ084-ORZ029-260600-
/O.CON.KMFR.WI.Y.0027.000000T0000Z-201226T0600Z/
Northeast Siskiyou and Northwest Modoc Counties-Klamath Basin-
Including the cities of Dorris, Macdoel, Altamont, 
and Klamath Falls
251 PM PST Fri Dec 25 2020

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

* WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph 
  expected.

* WHERE...In California, Northeast Siskiyou and Northwest Modoc 
  Counties. In Oregon, Klamath Basin. These areas include Modoc 
  Point, Klamath Falls, Midland, Worden, Keno, Dorris, and 
  MacDoel including portions of highway 97, 66, 140, and 139.

* WHEN...Now to 10 PM PST this evening.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages could result.

* ADDITIONAL DETAILS...The strongest winds are expected between 
  1 PM and 7 PM PST.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

ORZ023>025-260600-
/O.CON.KMFR.WI.Y.0027.000000T0000Z-201226T0600Z/
Central Douglas County-Eastern Curry County and Josephine County-
Eastern Douglas County Foothills-
251 PM PST Fri Dec 25 2020

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

* WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph 
  expected.

* WHERE...Portions of Highway 199 from the California-Oregon 
  border to south of Obrien, portions of Interstate 5 from 
  Azalea to south of Tri-City and mainly areas above the valley 
  floors of Central Douglas County, Eastern Curry County and 
  Josephine County and Eastern Douglas County Foothills.

* WHEN...Until 10 PM PST this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...While winds will generally affect mid and 
  upper elevations, these stronger gusty winds could mix into 
  some of the lower valleys between 1 PM PST this afternoon into 
  this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

Visit us at https://www.weather.gov/Medford
941 
WWUS76 KMFR 252343
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
343 PM PST Fri Dec 25 2020

ORZ021-022-260045-
/O.EXP.KMFR.HW.W.0008.000000T0000Z-201226T0000Z/
South Central Oregon Coast-Curry County Coast-
Including the cities of Bandon, Port Orford, Brookings, Harbor, 
and Gold Beach
343 PM PST Fri Dec 25 2020

...HIGH WIND WARNING WILL EXPIRE AT 4 PM PST THIS AFTERNOON...

Gusty winds are still occurring at the coast, but they are below
High Wind Warning criteria. Therefore, the warning will be allowed
to expire. High profile vehicles should still take care on Highway
101 for the next few hours as winds continue to decrease.

$$

CAZ081-260300-
/O.CON.KMFR.HW.W.0008.000000T0000Z-201226T0300Z/
Central Siskiyou County-
Including the city of Weed
343 PM PST Fri Dec 25 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM PST THIS
EVENING...

* WHAT...South winds 25 to 40 mph with gusts 55 to 70 mph 
  expected.

* WHERE...Portions of Interstate 5 from the Weed area to 
  Grenada. Also, portions of Interstate 5 and Highway 99 north 
  of Yreka to the Klamath River. Highway 97 from Weed to near 
  Grass Valley. This includes Weed, Gazelle, Grenada, and 
  Montague. The strongest winds are likely to be in the south 
  end of the Valley.

* WHEN...Until 7 PM PST this evening. The strongest winds are 
  expected to be between 1 PM and 4 PM PST this afternoon.

* IMPACTS...These strong winds will have the potential to blow 
  down trees and damage power lines. Power outages are possible. 
  Travel will be difficult, especially for high profile vehicles.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ085-ORZ030-031-260745-
/O.CON.KMFR.HW.W.0008.000000T0000Z-201226T1200Z/
Modoc County-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the city of Valley Falls
343 PM PST Fri Dec 25 2020

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

* WHAT...Southwest winds 25 to 40 mph with gusts 55 to 75 mph 
  expected.

* WHERE...Portions of Highway 31 between Lakeview and Summer 
  Lake including Valley Falls. Portions of Highway 395 between 
  the Oregon-California border and Alkali Lake. Portions of 
  Highway 140 east of Lakeview to the Oregon-Nevada border. The 
  higher terrain of Northern and Eastern Klamath County and 
  Western Lake County and Central and Eastern Lake County, 
  including the Warner Mountains, will also be affected.

* WHEN...Now to 4 AM PST Saturday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

* ADDITIONAL DETAILS...The strongest winds are likely to be over 
  the Warner Mountains, in the Summer Lake and Valley Falls 
  areas, and near the Nevada border. Winds are likely to peak 
  between 1 PM and 7 PM PST. 2 to 5 inches of snow will be 
  possible in these areas, as well, leading to slippery 
  conditions and reduced visibilities, at times.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

ORZ026-260300-
/O.CON.KMFR.WI.Y.0027.000000T0000Z-201226T0300Z/
Jackson County-
Including the cities of Medford and Ashland
343 PM PST Fri Dec 25 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING...

* WHAT...Southwest winds 20 to 30 mph with gusts 45 to 55 mph 
  expected. Locally higher gusts up to 60 mph are possible,.

* WHERE...Jackson County from Ashland to the southern portion of 
  Medford. This includes Talent and Phoenix.

* WHEN...Until 7 PM PST this evening. The strongest winds are 
  likely to occur between 7 AM and 1 PM PST.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

CAZ084-ORZ029-260600-
/O.CON.KMFR.WI.Y.0027.000000T0000Z-201226T0600Z/
Northeast Siskiyou and Northwest Modoc Counties-Klamath Basin-
Including the cities of Dorris, Macdoel, Altamont, 
and Klamath Falls
343 PM PST Fri Dec 25 2020

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

* WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph 
  expected.

* WHERE...In California, Northeast Siskiyou and Northwest Modoc 
  Counties. In Oregon, Klamath Basin. These areas include Modoc 
  Point, Klamath Falls, Midland, Worden, Keno, Dorris, and 
  MacDoel including portions of highway 97, 66, 140, and 139.

* WHEN...Now to 10 PM PST this evening.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages could result.

* ADDITIONAL DETAILS...The strongest winds are expected between 
  1 PM and 7 PM PST.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

ORZ023>025-260600-
/O.CON.KMFR.WI.Y.0027.000000T0000Z-201226T0600Z/
Central Douglas County-Eastern Curry County and Josephine County-
Eastern Douglas County Foothills-
343 PM PST Fri Dec 25 2020

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

* WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph 
  expected.

* WHERE...Portions of Highway 199 from the California-Oregon 
  border to south of Obrien, portions of Interstate 5 from 
  Azalea to south of Tri-City and mainly areas above the valley 
  floors of Central Douglas County, Eastern Curry County and 
  Josephine County and Eastern Douglas County Foothills.

* WHEN...Until 10 PM PST this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...While winds will generally affect mid and 
  upper elevations, these stronger gusty winds could mix into 
  some of the lower valleys between 1 PM PST this afternoon into 
  this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

Visit us at https://www.weather.gov/Medford
830 
WWUS76 KMFR 260244
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
644 PM PST Fri Dec 25 2020

CAZ081-260345-
/O.EXP.KMFR.HW.W.0008.000000T0000Z-201226T0300Z/
Central Siskiyou County-
Including the city of Weed
644 PM PST Fri Dec 25 2020

...HIGH WIND WARNING WILL EXPIRE AT 7 PM PST THIS EVENING...

Although winds will remain gusty for a few more hours, they are 
no longer expected to be damaging. Therefore, the high wind 
warning will be allowed to expire.

$$

ORZ026-260345-
/O.EXP.KMFR.WI.Y.0027.000000T0000Z-201226T0300Z/
Jackson County-
Including the cities of Medford and Ashland
644 PM PST Fri Dec 25 2020

...WIND ADVISORY WILL EXPIRE AT 7 PM PST THIS EVENING...

Winds have decreased, and are no longer at advisory levels. At
higher elevations, winds may still be gusty until the front moves
through.

$$

CAZ085-ORZ030-031-261045-
/O.CON.KMFR.HW.W.0008.000000T0000Z-201226T1200Z/
Modoc County-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the city of Valley Falls
644 PM PST Fri Dec 25 2020

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

* WHAT...Southwest winds 25 to 40 mph with gusts 55 to 75 mph 
  expected.

* WHERE...Portions of Highway 31 between Lakeview and Summer 
  Lake including Valley Falls. Portions of Highway 395 between 
  the Oregon-California border and Alkali Lake. Portions of 
  Highway 140 east of Lakeview to the Oregon-Nevada border. The 
  higher terrain of Northern and Eastern Klamath County and 
  Western Lake County and Central and Eastern Lake County, 
  including the Warner Mountains, will also be affected.

* WHEN...Through 4 AM PST Saturday.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages may result.

* ADDITIONAL DETAILS...The strongest winds are likely to be over 
  the Warner Mountains, in the Summer Lake and Valley Falls 
  areas, and near the Nevada border. Winds are likely to peak 
  between 1 PM and 7 PM PST. 2 to 5 inches of snow will be 
  possible in these areas, as well, leading to slippery 
  conditions and reduced visibilities, at times.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ084-ORZ029-260600-
/O.CON.KMFR.WI.Y.0027.000000T0000Z-201226T0600Z/
Northeast Siskiyou and Northwest Modoc Counties-Klamath Basin-
Including the cities of Dorris, Macdoel, Altamont, 
and Klamath Falls
644 PM PST Fri Dec 25 2020

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

* WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph 
  expected.

* WHERE...In California, Northeast Siskiyou and Northwest Modoc 
  Counties. In Oregon, Klamath Basin. These areas include Modoc 
  Point, Klamath Falls, Midland, Worden, Keno, Dorris, and 
  MacDoel including portions of highway 97, 66, 140, and 139.

* WHEN...Through 10 PM PST this evening.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree 
  limbs could be blown down and a few power outages could result.

* ADDITIONAL DETAILS...The strongest winds are expected between 
  1 PM and 7 PM PST.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

ORZ023>025-260600-
/O.CON.KMFR.WI.Y.0027.000000T0000Z-201226T0600Z/
Central Douglas County-Eastern Curry County and Josephine County-
Eastern Douglas County Foothills-
644 PM PST Fri Dec 25 2020

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

* WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph 
  expected.

* WHERE...Portions of Highway 199 from the California-Oregon 
  border to south of Obrien, portions of Interstate 5 from 
  Azalea to south of Tri-City and mainly areas above the valley 
  floors of Central Douglas County, Eastern Curry County and 
  Josephine County and Eastern Douglas County Foothills.

* WHEN...Until 10 PM PST this evening.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...While winds will generally affect mid and 
  upper elevations, these stronger gusty winds could mix into 
  some of the lower valleys between 1 PM PST this afternoon into 
  this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

Visit us at https://www.weather.gov/Medford
036 
WWUS76 KMFR 260548
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
948 PM PST Fri Dec 25 2020

CAZ085-ORZ030-031-260700-
/O.CAN.KMFR.HW.W.0008.000000T0000Z-201226T1200Z/
Modoc County-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
948 PM PST Fri Dec 25 2020

...HIGH WIND WARNING IS CANCELLED...

Although winds may still be breezy, they have dropped below
advisory and warning criteria. Thus, the conditions prompting the
warning have ended.

$$

CAZ084-ORZ029-260700-
/O.EXP.KMFR.WI.Y.0027.000000T0000Z-201226T0600Z/
Northeast Siskiyou and Northwest Modoc Counties-Klamath Basin-
Including the cities of Dorris, Macdoel, Altamont, 
and Klamath Falls
948 PM PST Fri Dec 25 2020

...WIND ADVISORY WILL EXPIRE AT 10 PM PST THIS EVENING...

Winds may still be breezy over the higher terrain, but winds have
dropped below advisory criteria, and the wind advisory will be
allowed to expire.

$$

ORZ023>025-260700-
/O.EXP.KMFR.WI.Y.0027.000000T0000Z-201226T0600Z/
Central Douglas County-Eastern Curry County and Josephine County-
Eastern Douglas County Foothills-
948 PM PST Fri Dec 25 2020

...WIND ADVISORY WILL EXPIRE AT 10 PM PST THIS EVENING...

Winds may still be breezy over the higher terrain, but winds have
dropped below advisory criteria, and the wind advisory will be
allowed to expire.

$$

Visit us at https://www.weather.gov/Medford

What forecasters said that day

The local office's own words before this high wind 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 high wind warning went out at Dec 23, 9:49 PM PST, 4 hours 12 minutes earlier.

Area forecast discussion, Dec 23, 9:49 PM PST, 4 hours 12 minutes before
Area Forecast Discussion
National Weather Service Medford OR
949 PM PST Wed Dec 23 2020

.DISCUSSION...An update has been issued to thicken low cloud
cover this evening over the Umpqua Valley, and to nudge the snow
level lower on Friday night. This was sufficient to warrant
updating the Winter Storm Watch /PDXWSWMFR/ for Siskiyou County
to include elevations above 3500 feet. This adjustment most
notably adds the vicinity of Mt. Shasta City into the Watch, with
a lesser accumulation likely into southern portions of Weed, and as
low as 3000 feet along Interstate 5 between Mt. Shasta City and
Dunsmuir. The Watch is in effect between 10 AM Friday and 10 AM
Saturday, with the majority of the 10 to 15 inches of snowfall
likely to occur between 4 PM Friday and 4 AM Saturday.

Also in effect is a High Wind Watch /PDXNPWMFR/ for the Shasta
Valley from 10 AM Friday morning through 10 PM Friday evening.
South winds will be strongest near Weed with gusts up to 60 mph.

With this system to be focused on northern and central California,
there is more model variability regarding the impact on Oregon. At
least light precipitation is expected across our area, with
periods of moderate intensity likely into southwest Oregon and
northern Klamath County. Snow levels away from the most intense
precipitation in Siskiyou County will be slightly
higher...generally falling from 5000 feet to 3500 feet with 6 to
12 inches of snow forecast for the southern Oregon Cascades and
Siskiyou Mountains, except about 5 inches for Siskiyou Summit on
Interstate 5, and mainly from an inch to as much as 5 inches on
the east side. Southerly winds will be windy, most notably
including gusts up to 45 mph forecast along Highway 31 near Summer
Lake and Silver Lake.

Please see the previous discussion below for further details
regarding the 7 day forecast.

&&

.AVIATION...For the 24/00Z TAFs...VFR conditions will persist
into this evening with moderate to strong easterly winds aloft.
These winds will continue into Thursday. Satellite shows a lot of
dry air lingering around California and that should persist through
the TAF period. However, we'll see another round of LIFR
visibilities with freezing fog in valleys west of the Cascades
Thursday morning. As for valleys East of the Cascades, it's looking
like fog is unlikely Thursday morning. VFR conditions are expected
elsewhere through the TAF period. -CC

&&

.MARINE...Updated 800 PM PST Wednesday 23 Dec 2020...Easterly winds
will become southerly overnight. Winds and seas will remain below
advisory criteria into Thursday morning.

A strong front moves into the region Thursday afternoon and seas
will become very steep and hazardous Thursday afternoon. Southerly
winds will strengthen Thursday night into Friday, reaching gale
force by Thursday night. Very steep and hazardous wind driven seas
will build further, peaking Friday morning and afternoon at around
15 to 20 ft. The gale watch has been upgraded to a warning with
gales expected to persist into Friday evening. There is high
confidence in widespread gales across the waters, but it should be
noted that there is the possibility of isolated storm force gusts
Friday afternoon. Winds will ease late Friday evening and overnight,
but seas will remain very high and steep into Saturday morning.

A very high and long period swell is still possible Saturday
morning. However, guidance has trended lower with this swell over
recent runs (16-18 ft today vs 20-22 from yesterday's run) and has
also decreased the period down to 14 seconds. Considering this is a
significant departure from previous runs, we will continue to
monitor trends over the next few runs. Even with this downward
trend, seas will be very high and very steep, likely resulting in
hazardous conditions along with dangerous bar crossings. Seas peak
again Saturday afternoon and evening, then gradually diminish
Saturday night into Sunday. There will be a brief break in the
weather Sunday, but seas are expected to remain high into Monday
with active weather expected next week. -CC/BR-y

&&

.PREV DISCUSSION... /Issued 253 PM PST Wed Dec 23 2020/

SHORT TERM...Through Friday Night...Clear skies this afternoon
is due to high pressure over the area, which is resulting in east
winds and drying over the ridges with less drying in the valleys
due to the inversion. Without clouds, the inversion should weaken
during the afternoon and some meager mixing to occur. Oregon DEQ
air quality monitors are reporting good air quality in the region
and a front is 24-36 hours out, so will not be matching Portland
with a stagnant air advisory.

West side valleys will fill back in with freezing fog tonight,
except for valley locations closer to the coast where fog in above
freezing temperatures will exist. Like this morning we are expecting
only localized dense fog, with majority of the fog being less
impactful. The dry conditions created from the east winds also
raises the low possibility that some places don't observe any fog.

Thursday will be a great day for travel with generally clear skies
expected. There could be some breezy winds in the Shasta valley near
weed in the afternoon as a front approaches.

Friday, Christmas day, will be less favorable for travel and could
even become hazardous for a few locations. Winds will begin to
increase along the coast and in the Shasta valley that morning and
peak in the afternoon. Have issued a High Wind Watch for the
Shasta valley with moderate-to-high confidence that Warning level
winds will occur; that is gusts over 58 mph. Winds at the coast,
along highway 101, are about 5 mph under watch criteria. The
coastal winds match our most reliable guidance and confidence is
fairly high that they represent the most likely scenario. SREF
probability of sustained sfc winds > 29 mph along the 101 corridor
is about 45%; our forecast is generally in the 17 to 23 mph
range. Gusts could still near 50 mph, which even below warning
criteria, will create hazardous driving conditions. Winds will
also be quite strong at peaks and ridges, for example at Mt.
Ashland gusts are expected to be in the 50 to 60 mph gust range.
Winds across the east side, near Summer Lake and along route 31,
are currently under advisory criteria, and appear to be too
southerly to increase to criteria threshold (southwest winds are
more favorable for this location).

Rain will begin along the coast in the early morning, heaviest along
the Curry County coast. Rain and snow will begin further inland
later in the morning, around 10 AM. The south/southwest flow favors
the Siskiyous and surrounding mountains for larger snow
accumulations. The most impactful snowfall will begin Friday
afternoon and continue through the night. A Winter Storm Watch is in
effect above 4000 ft in southern Siskiyou County, with details on
snow totals found in the extended section below. The snow in the
Cascades will start around the same time, but larger accumulations
won't start until Friday night and is expected to be less impactful
than the snow in Siskiyou County. -Miles

LONG TERM...Saturday morning until Thursday morning...

As the low moves onshore Saturday morning, snow will continue to
fall above 4000 feet over the region.  Storm total snowfall from
this winter weather event will be around 10 to 16 inches above 4000
feet with localized peaks and mountains seeing up to 2 feet of fresh
snow in northern California.  In southern Oregon and the Cascades,
we'll see less snow as the predominate flow will be mostly southerly
through the whole event. In general, we'll see around 8 to 10 inches
with 12 inches possible over the higher peaks in the Cascades, such
as Crater Lake, Mt. Thielsen, Mt. Ashland and other higher locations.

Interstate 5 will also see some snow from this winter weather event.
We're expecting around 2 to 4 inches over Siskiyou Pass through
Saturday morning with about 4 to 6 inches around Mount Shasta City.
With the snow level around 4000 feet, the low I-5 passes will avoid
snow. This snow should only bring moderate impacts as the plows
should be able to keep up with the snowfall.

After this low move through the region on Saturday, we'll see a
brief period of high pressure before the next low passes by.
Ensemble guidance suggests there is a very high probability the next
low will miss us and move into central California late Sunday into
Sunday night.  The probability of precipitation is about 20 percent
for southern Siskiyou County and southern Curry County as this low
moves through.  Drier air will likely move in behind this low as
1000-500 mb RH is about 30%.

This dry theme will continue from Sunday through Tuesday.  Then,
models begin to diverge on the overall weather pattern.  About 55
percent of the models suggest the next trough will be approaching
the Pacific Northwest.  However, the rest keep a ridge and high
pressure over the region.  Therefore, it seems more probable than
not that we'll see some rain and snow move through the region around
Wednesday.

-Smith

&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...
CA...High Wind Watch from Friday morning through Friday evening for
     CAZ081.
     Winter Storm Watch from Friday morning through Saturday morning
     above 3500 feet in the for CAZ080-082-083.

Pacific Coastal Waters...Gale Warning from 10 PM Thursday to 7 PM PST
     Friday for PZZ350-356-370-376.
     Hazardous Seas Warning from 1 PM to 10 PM PST Thursday for
     PZZ350-356-370-376.

DW/CC

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 24, 2:01 AM PSTWind AdvisoryMFRCoos, Curry, Douglas, Jackson, Josephine, Klamath and 1 more44 hr
Dec 24, 2:01 AM PSTWinter Weather AdvisoryMFRDouglas, Jackson, Josephine, Klamath, Lake56 hr
Dec 24, 2:01 AM PSTWinter Storm WarningMFRSiskiyou51 hr

Nearby

High Wind Warnings in Oregon, 2020High Wind Warnings in California, 2020Every high wind warning in 2020

Sources

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