Alert archive / Oregon / High Wind Warnings in 2018

High Wind Warning 16, NWS Medford, OR

December 19, 2018Coos County, Curry County, Douglas County, Oregon

NWS Medford, OR issued this high wind warning at Dec 19, 2018, 2:04 PM PST for Coos County, Curry County, Douglas County, Oregon. It took effect at Dec 20, 2018, 4:00 AM PST. It was in force for 9 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
Dec 19, 2018, 2:04 PM PST (22:04 UTC)
In effect from
Dec 20, 2018, 4:00 AM PST
Expired
Dec 20, 2018, 1:00 PM PST
In force
9 hr
Issued by
NWS Medford, OR

Counties Coos County, OR, Curry County, OR, Douglas County, OR

The radar

The Medford radar (KMAX), 135 km from the middle of the area, began a volume at 22:08 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, 10.1 hours before the alert went out and 108 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 2018-12-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 2018-12-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 square meters per square second.1939587897117Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
767 m above ground
0-6 km bulk shear
85 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
282 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

469 
WWUS76 KMFR 192204
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
204 PM PST Wed Dec 19 2018

...Strong, gusty south to southwest winds Thursday morning 
through evening...

.A deepening low offshore will bring another round of strong gusty
winds Thursday morning into the evening. Strong winds will start
at the coast, mainly for the headlands, by Thursday morning, then
spread inland during the day Thursday. Strong winds will also 
affect the Shasta Valley and some areas east of the Cascades later
Thursday morning into the evening.

ORZ021-022-201200-
/O.NEW.KMFR.HW.W.0016.181220T1200Z-181220T2100Z/
South Central Oregon Coast-Curry County Coast-
Including the cities of North Bend, Reedsport, Bandon, 
Port Orford, and Gold Beach
204 PM PST Wed Dec 19 2018

...HIGH WIND WARNING IN EFFECT FROM 4 AM TO 1 PM PST THURSDAY...

The National Weather Service in Medford has issued a High Wind
Warning...which is in effect from 4 AM to 1 PM PST Thursday. 

* Winds...Along the headlands, south 40 to 50 mph with gusts of 60
  to 80 mph. Elsewhere, south 25 to 30 mph with gusts to 50 mph.

* Timing...Early Thursday morning through Thursday afternoon.
  Winds will peak late Thursday morning.

* Locations include...Headlands of the coast, including Cape
  Blanco, and elevated portions of Highway 101.

* Impacts...Strong winds will make travel difficult, especially 
  for high profile vehicles. Loose items will be blown about. 
  Property and tree damage is possible. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The strongest winds are expected at exposed locations along 
highway 101.

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

&&

$$

CAZ081-201200-
/O.NEW.KMFR.WI.Y.0036.181220T1500Z-181221T0000Z/
Central Siskiyou County-
Including the city of Weed
204 PM PST Wed Dec 19 2018

...WIND ADVISORY IN EFFECT FROM 7 AM TO 4 PM PST THURSDAY...

The National Weather Service in Medford has issued a Wind
Advisory...which is in effect from 7 AM to 4 PM PST Thursday. 

* Winds...South to southeast 25 to 35 mph with gusts to 55 mph.

* Timing...Thursday morning through afternoon, with the strongest
  winds expected during the late morning.

* Locations include...Weed and portions of I-5 between Weed and
  Grenada.

* Impacts...Gusty winds could make travel more difficult than
  usual, at times, especially for high profile vehicles. Loose 
  items will be blown about.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

CAZ085-ORZ029>031-201200-
/O.NEW.KMFR.WI.Y.0036.181220T1800Z-181221T0600Z/
Modoc County-Klamath Basin-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
204 PM PST Wed Dec 19 2018

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

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

* Winds...Southwest 30 to 40 mph with gusts to 55 mph.

* Timing...Late Thursday morning through evening, with the
  strongest winds expected Thursday afternoon.

* Locations include...Paisley, Summer Lake, and the higher
  elevations of the Warners of southern Lake county. This includes
  portions of Highway 31 between Summer Lake and Valley Falls,
  Highway 140 between Lakeview and Adel, and Highway 395 between
  Alkali Lake and Valley Falls.

* Impacts...Gusty winds could make travel more difficult than
  usual, at times, especially for high profile vehicles. Loose 
  items will be blown about.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
6 follow-up statements
359 
WWUS76 KMFR 200734
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
1134 PM PST Wed Dec 19 2018

...Strong, gusty south to southwest winds Thursday morning
through evening...

.A deepening low offshore will bring another round of strong
gusty winds Thursday morning into the evening. Strong winds will
start at the coast, mainly for the headlands, by Thursday
morning, then spread inland during the day Thursday. Strong winds
will also affect the Shasta Valley and some areas east of the
Cascades later Thursday morning into the evening.

ORZ021-022-202100-
/O.CON.KMFR.HW.W.0016.181220T1200Z-181220T2100Z/
South Central Oregon Coast-Curry County Coast-
1134 PM PST Wed Dec 19 2018

...HIGH WIND WARNING REMAINS IN EFFECT FROM 4 AM TO 1 PM PST
THURSDAY...

* Winds...Along the headlands, south 40 to 50 mph with gusts of 
  60 to 80 mph. Elsewhere, south 25 to 30 mph with gusts to 50 
  mph. 

* Timing...Early Thursday morning through Thursday afternoon. 
  Winds will peak late Thursday morning. 

* Locations include...Headlands of the coast, including Cape 
  Blanco, and elevated portions of Highway 101. 

* Impacts...Strong winds will make travel difficult, especially 
  for high profile vehicles. Loose items will be blown about. 
  Property and tree damage is possible. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The strongest winds are expected at exposed locations along
highway 101.

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

&&

$$

ORZ024-026-201700-
/O.NEW.KMFR.FG.Y.0012.181220T0734Z-181220T1700Z/
Eastern Curry County and Josephine County-Jackson County-
Including the cities of Grants Pass, Cave Junction, Medford, 
and Ashland
1134 PM PST Wed Dec 19 2018

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM PST THURSDAY...

The National Weather Service in Medford has issued a Dense Fog
Advisory...which is in effect until 9 AM PST Thursday. 

* Visibility...Less than a quarter of a mile. 

* Locations include...The Rogue and Illinois Valleys, including
  Medford, Talent, Gold Hill, Rogue River, Grants Pass and Cave
  Junction.This includes significant portions of Interstate 5. 
 
* Impacts...Dense fog will make it difficult to see while driving,
  and will obscure obstructions or other vehicles on area roads.
 
* View the hazard area in detail at 
  https://www.wrh.noaa.gov/mfr/HAZARD 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* Slow down and allow for plenty of room between you and other 
  vehicles.

* Fog makes objects appear farther away than they are

* Use low beams. High beams reflect back thick fog, making 
  visibility worse for you and other drivers.

* Be prepared. Keep your headlights clean. That way, you're 
  ready for low-visibility conditions

* Don't use cruise control. Most crashes occur because the 
  driver is going too fast for weather conditions.

&&

$$

CAZ081-202345-
/O.CON.KMFR.WI.Y.0036.181220T1500Z-181221T0000Z/
Central Siskiyou County-
Including the city of Weed
1134 PM PST Wed Dec 19 2018

...WIND ADVISORY REMAINS IN EFFECT FROM 7 AM TO 4 PM PST
THURSDAY...

* Winds...South to southeast 25 to 35 mph with gusts to 55 mph.

* Timing...Thursday morning through afternoon, with the 
  strongest winds expected during the late morning. 

* Locations include...Weed and portions of I-5 between Weed and 
  Grenada. 

* Impacts...Gusty winds could make travel more difficult than 
  usual, at times, especially for high profile vehicles. Loose 
  items will be blown about. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

CAZ085-ORZ029>031-202345-
/O.CON.KMFR.WI.Y.0036.181220T1800Z-181221T0600Z/
Modoc County-Klamath Basin-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
1134 PM PST Wed Dec 19 2018

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM TO 10 PM PST
THURSDAY...

* Winds...Southwest 30 to 40 mph with gusts to 55 mph.

* Timing...Late Thursday morning through evening, with the 
  strongest winds expected Thursday afternoon. 

* Locations include...Paisley, Summer Lake, and the higher 
  elevations of the Warners of southern Lake county. This 
  includes portions of Highway 31 between Summer Lake and Valley 
  Falls, Highway 140 between Lakeview and Adel, and Highway 395 
  between Alkali Lake and Valley Falls. 

* Impacts...Gusty winds could make travel more difficult than 
  usual, at times, especially for high profile vehicles. Loose 
  items will be blown about. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
044 
WWUS76 KMFR 201201
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
401 AM PST Thu Dec 20 2018


ORZ021-022-202100-
/O.CON.KMFR.HW.W.0016.000000T0000Z-181220T2100Z/
South Central Oregon Coast-Curry County Coast-
401 AM PST Thu Dec 20 2018

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

* Winds...Along the headlands, south 40 to 50 mph with gusts of 
  60 to 80 mph. Elsewhere, south 25 to 30 mph with gusts to 50 
  mph. 

* Timing...Early morning through this afternoon. Winds will peak
  late this morning. 

* Locations include...Headlands of the coast, including Cape 
  Blanco, and elevated portions of Highway 101. 

* Impacts...Strong winds will make travel difficult, especially
  for high profile vehicles. Loose items will be blown about.
  Property and tree damage is possible. Periods of heavy rain will
  make travel even more difficult with the strong winds.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The strongest winds are expected at exposed locations along
highway 101.

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

&&

$$

ORZ024-026-201700-
/O.CON.KMFR.FG.Y.0012.000000T0000Z-181220T1700Z/
Eastern Curry County and Josephine County-Jackson County-
Including the cities of Grants Pass, Cave Junction, Medford, 
and Ashland
401 AM PST Thu Dec 20 2018

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS
MORNING...

* Visibility...Less than a quarter of a mile.

* Locations include...The Rogue and Illinois Valleys, including 
  Medford, Talent, Gold Hill, Rogue River, Grants Pass and Cave 
  Junction.This includes significant portions of Interstate 5. 

* Impacts...Dense fog will make it difficult to see while 
  driving, and will obscure obstructions or other vehicles on 
  area roads. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* Slow down and allow for plenty of room between you and other 
  vehicles. 

* Fog makes objects appear farther away than they are

* Use low beams. High beams reflect back thick fog, making 
  visibility worse for you and other drivers. 

* Be prepared. Keep your headlights clean. That way, you're 
  ready for low-visibility conditions 

* Don't use cruise control. Most crashes occur because the 
  driver is going too fast for weather conditions. 

&&

$$

CAZ081-210000-
/O.CON.KMFR.WI.Y.0036.181220T1500Z-181221T0000Z/
Central Siskiyou County-
Including the city of Weed
401 AM PST Thu Dec 20 2018

...WIND ADVISORY REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 4 PM
PST THIS AFTERNOON...

* Winds...South to southeast 25 to 35 mph with gusts to 55 mph.

* Timing...This morning through afternoon, with the strongest 
  winds expected during the late morning. 

* Locations include...Weed and portions of I-5 between Weed and 
  Grenada. 

* Impacts...Gusty winds could make travel more difficult than 
  usual, at times, especially for high profile vehicles. Loose 
  items will be blown about. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

CAZ085-ORZ029>031-210015-
/O.CON.KMFR.WI.Y.0036.181220T1800Z-181221T0600Z/
Modoc County-Klamath Basin-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
401 AM PST Thu Dec 20 2018

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
10 PM PST THIS EVENING...

* Winds...Southwest 30 to 40 mph with gusts to 55 mph.

* Timing...Late morning through evening, with the strongest winds
  expected this afternoon. 

* Locations include...Paisley, Summer Lake, and the higher 
  elevations of the Warners of southern Lake county. This 
  includes portions of Highway 31 between Summer Lake and Valley 
  Falls, Highway 140 between Lakeview and Adel, and Highway 395 
  between Alkali Lake and Valley Falls. 

* Impacts...Gusty winds could make travel more difficult than 
  usual, at times, especially for high profile vehicles. Loose 
  items will be blown about. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
800 
WWUS76 KMFR 201533
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
733 AM PST Thu Dec 20 2018

ORZ024-201645-
/O.CAN.KMFR.FG.Y.0012.000000T0000Z-181220T1700Z/
Eastern Curry County and Josephine County-
733 AM PST Thu Dec 20 2018

...DENSE FOG ADVISORY IS CANCELLED...

The National Weather Service in Medford has cancelled the Dense
Fog Advisory. 

Visibilities have improved throughout the Illinois Valley.

$$

ORZ021-022-202100-
/O.CON.KMFR.HW.W.0016.000000T0000Z-181220T2100Z/
South Central Oregon Coast-Curry County Coast-
733 AM PST Thu Dec 20 2018

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

* Winds...Along the headlands, south 40 to 50 mph with gusts of 
  60 to 80 mph. Elsewhere, south 25 to 30 mph with gusts to 50 
  mph. 

* Timing...Early morning through this afternoon. Winds will peak 
  late this morning. 

* Locations include...Headlands of the coast, including Cape 
  Blanco, and elevated portions of Highway 101. 

* Impacts...Strong winds will make travel difficult, especially 
  for high profile vehicles. Loose items will be blown about. 
  Property and tree damage is possible. Periods of heavy rain 
  will make travel even more difficult with the strong winds. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The strongest winds are expected at exposed locations along
highway 101.

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

&&

$$

ORZ026-201700-
/O.CON.KMFR.FG.Y.0012.000000T0000Z-181220T1700Z/
Jackson County-
Including the cities of Medford and Ashland
733 AM PST Thu Dec 20 2018

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS
MORNING...

* Visibility...Less than a quarter of a mile.

* Locations include...The Rogue Valley, including Medford, Talent,
  Gold Hill, and Phoenix. This includes significant portions of
  Interstate 5. 

* Impacts...Dense fog will make it difficult to see while 
  driving, and will obscure obstructions or other vehicles on 
  area roads. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* Slow down and allow for plenty of room between you and other 
  vehicles. 

* Fog makes objects appear farther away than they are

* Use low beams. High beams reflect back thick fog, making 
  visibility worse for you and other drivers. 

* Be prepared. Keep your headlights clean. That way, you're 
  ready for low-visibility conditions 

* Don't use cruise control. Most crashes occur because the 
  driver is going too fast for weather conditions. 

&&

$$

CAZ081-210000-
/O.CON.KMFR.WI.Y.0036.000000T0000Z-181221T0000Z/
Central Siskiyou County-
Including the city of Weed
733 AM PST Thu Dec 20 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* Winds...South to southeast 25 to 35 mph with gusts to 55 mph.

* Timing...This morning through afternoon, with the strongest 
  winds expected during the late morning. 

* Locations include...Weed and portions of I-5 between Weed and 
  Grenada. 

* Impacts...Gusty winds could make travel more difficult than 
  usual, at times, especially for high profile vehicles. Loose 
  items will be blown about. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

CAZ085-ORZ029>031-210345-
/O.CON.KMFR.WI.Y.0036.181220T1800Z-181221T0600Z/
Modoc County-Klamath Basin-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
733 AM PST Thu Dec 20 2018

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

* Winds...Southwest 30 to 40 mph with gusts to 55 mph.

* Timing...Late morning through evening, with the strongest 
  winds expected this afternoon. 

* Locations include...Paisley, Summer Lake, and the higher 
  elevations of the Warners of southern Lake county. This 
  includes portions of Highway 31 between Summer Lake and Valley 
  Falls, Highway 140 between Lakeview and Adel, and Highway 395 
  between Alkali Lake and Valley Falls. 

* Impacts...Gusty winds could make travel more difficult than 
  usual, at times, especially for high profile vehicles. Loose 
  items will be blown about. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
387 
WWUS76 KMFR 201651
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
851 AM PST Thu Dec 20 2018

ORZ021-022-202100-
/O.CON.KMFR.HW.W.0016.000000T0000Z-181220T2100Z/
South Central Oregon Coast-Curry County Coast-
851 AM PST Thu Dec 20 2018

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

* Winds...Along the headlands, south 40 to 50 mph with gusts of 
  60 to 80 mph. Elsewhere, south 25 to 30 mph with gusts to 50 
  mph. 

* Timing...Early morning through this afternoon. Winds will peak 
  late this morning. 

* Locations include...Headlands of the coast, including Cape 
  Blanco, and elevated portions of Highway 101. 

* Impacts...Strong winds will make travel difficult, especially 
  for high profile vehicles. Loose items will be blown about. 
  Property and tree damage is possible. Periods of heavy rain 
  will make travel even more difficult with the strong winds. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The strongest winds are expected at exposed locations along
highway 101.

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

&&

$$

ORZ026-201800-
/O.EXT.KMFR.FG.Y.0012.000000T0000Z-181220T1800Z/
Jackson County-
Including the city of Medford
851 AM PST Thu Dec 20 2018

...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 10 AM PST THIS
MORNING...

* Visibility...Less than a quarter of a mile.

* Locations include...Rogue Valley, including Medford, Talent,
  Gold Hill and portions of Interstate 5. 

* Impacts...Dense fog will make it difficult to see while 
  driving, and will obscure obstructions or other vehicles on 
  area roads. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* Slow down and allow for plenty of room between you and other 
  vehicles. 

* Fog makes objects appear farther away than they are

* Use low beams. High beams reflect back thick fog, making 
  visibility worse for you and other drivers. 

* Be prepared. Keep your headlights clean. That way, you're 
  ready for low-visibility conditions 

* Don't use cruise control. Most crashes occur because the 
  driver is going too fast for weather conditions. 

&&

$$

CAZ081-210000-
/O.CON.KMFR.WI.Y.0036.000000T0000Z-181221T0000Z/
Central Siskiyou County-
Including the city of Weed
851 AM PST Thu Dec 20 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* Winds...South to southeast 25 to 35 mph with gusts to 55 mph.

* Timing...This morning through afternoon, with the strongest 
  winds expected during the late morning. 

* Locations include...Weed and portions of I-5 between Weed and 
  Grenada. 

* Impacts...Gusty winds could make travel more difficult than 
  usual, at times, especially for high profile vehicles. Loose 
  items will be blown about. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

CAZ085-ORZ029>031-210600-
/O.CON.KMFR.WI.Y.0036.181220T1800Z-181221T0600Z/
Modoc County-Klamath Basin-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
851 AM PST Thu Dec 20 2018

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

* Winds...Southwest 30 to 40 mph with gusts to 55 mph.

* Timing...Late morning through evening, with the strongest 
  winds expected this afternoon. 

* Locations include...Paisley, Summer Lake, and the higher 
  elevations of the Warners of southern Lake county. This 
  includes portions of Highway 31 between Summer Lake and Valley 
  Falls, Highway 140 between Lakeview and Adel, and Highway 395 
  between Alkali Lake and Valley Falls. 

* Impacts...Gusty winds could make travel more difficult than 
  usual, at times, especially for high profile vehicles. Loose 
  items will be blown about. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
072 
WWUS76 KMFR 201748
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
948 AM PST Thu Dec 20 2018

ORZ026-201900-
/O.EXP.KMFR.FG.Y.0012.000000T0000Z-181220T1800Z/
Jackson County-
Including the city of Medford
948 AM PST Thu Dec 20 2018

...DENSE FOG ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING...

Visibilities should gradually improve over the next hour as a
period of moderate to heavy rain moves through and scours out the
dense fog. Therefore, will let the dense fog advisory expire.

$$

ORZ021-022-202100-
/O.CON.KMFR.HW.W.0016.000000T0000Z-181220T2100Z/
South Central Oregon Coast-Curry County Coast-
948 AM PST Thu Dec 20 2018

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

* Winds...Along the headlands, south 40 to 50 mph with gusts of 
  60 to 80 mph. Elsewhere, south 25 to 30 mph with gusts to 50 
  mph. 

* Timing...Early morning through this afternoon. Winds will peak 
  late this morning. 

* Locations include...Headlands of the coast, including Cape 
  Blanco, and elevated portions of Highway 101. 

* Impacts...Strong winds will make travel difficult, especially 
  for high profile vehicles. Loose items will be blown about. 
  Property and tree damage is possible. Periods of heavy rain 
  will make travel even more difficult with the strong winds. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

The strongest winds are expected at exposed locations along
highway 101.

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

&&

$$

CAZ081-210000-
/O.CON.KMFR.WI.Y.0036.000000T0000Z-181221T0000Z/
Central Siskiyou County-
Including the city of Weed
948 AM PST Thu Dec 20 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* Winds...South to southeast 25 to 35 mph with gusts to 55 mph.

* Timing...This morning through afternoon, with the strongest 
  winds expected during the late morning. 

* Locations include...Weed and portions of I-5 between Weed and 
  Grenada. 

* Impacts...Gusty winds could make travel more difficult than 
  usual, at times, especially for high profile vehicles. Loose 
  items will be blown about. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

CAZ085-ORZ029>031-210600-
/O.CON.KMFR.WI.Y.0036.181220T1800Z-181221T0600Z/
Modoc County-Klamath Basin-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
948 AM PST Thu Dec 20 2018

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

* Winds...Southwest 30 to 40 mph with gusts to 55 mph.

* Timing...Late morning through evening, with the strongest 
  winds expected this afternoon. 

* Locations include...Paisley, Summer Lake, and the higher 
  elevations of the Warners of southern Lake county. This 
  includes portions of Highway 31 between Summer Lake and Valley 
  Falls, Highway 140 between Lakeview and Adel, and Highway 395 
  between Alkali Lake and Valley Falls. 

* Impacts...Gusty winds could make travel more difficult than 
  usual, at times, especially for high profile vehicles. Loose 
  items will be blown about. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
547 
WWUS76 KMFR 202043
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
1243 PM PST Thu Dec 20 2018

ORZ021-022-202145-
/O.EXP.KMFR.HW.W.0016.000000T0000Z-181220T2100Z/
South Central Oregon Coast-Curry County Coast-
1243 PM PST Thu Dec 20 2018

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

Winds will remain breezy but will continue to diminish as the
afternoon progresses. Therefore, the High Wind Warning will be
allowed to expire.

$$

CAZ081-210000-
/O.CON.KMFR.WI.Y.0036.000000T0000Z-181221T0000Z/
Central Siskiyou County-
Including the city of Weed
1243 PM PST Thu Dec 20 2018

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* Winds...South to southeast 25 to 35 mph with gusts to 55 mph.

* Timing...This morning through afternoon, with the strongest 
  winds expected during the late morning. 

* Locations include...Weed and portions of I-5 between Weed and 
  Grenada. 

* Impacts...Gusty winds could make travel more difficult than 
  usual, at times, especially for high profile vehicles. Loose 
  items will be blown about. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

CAZ085-ORZ029>031-210600-
/O.CON.KMFR.WI.Y.0036.000000T0000Z-181221T0600Z/
Modoc County-Klamath Basin-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
1243 PM PST Thu Dec 20 2018

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

* Winds...Southwest 30 to 40 mph with gusts to 55 mph.

* Timing...Late morning through evening, with the strongest 
  winds expected this afternoon. 

* Locations include...Paisley, Summer Lake, and the higher 
  elevations of the Warners of southern Lake county. This 
  includes portions of Highway 31 between Summer Lake and Valley 
  Falls, Highway 140 between Lakeview and Adel, and Highway 395 
  between Alkali Lake and Valley Falls. 

* Impacts...Gusty winds could make travel more difficult than 
  usual, at times, especially for high profile vehicles. Loose 
  items will be blown about. 

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

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 19, 10:02 AM PST, 4 hours 2 minutes earlier.

Area forecast discussion, Dec 19, 10:02 AM PST, 4 hours 2 minutes before
Area Forecast Discussion
National Weather Service Medford OR
1002 AM PST Wed Dec 19 2018

.Updated Aviation Discussion.

.DISCUSSION...No big updates needed this morning, just some fine
tuning of today's grids. The weather is much quieter than this
time yesterday morning, and it will continue to be so for the
remainder of the day. Fog and low clouds have filled in some of
the interior valleys west of the Cascades as well as portions of
the east side. High level cloud cover also streams over the area,
making it a bit difficult to discern exactly where the low
clouds/fog exist. The lower clouds will burn off later this
morning, but higher clouds will continue to stream over the area
making for a mostly cloudy day.

Another strong front, albeit weaker than yesterday's front, will
approach the area later this afternoon but we won't really start
feeling it's effects until early Thursday morning. Ahead of it, a
warm front will lift north and some light showers is expected
along the coast this afternoon and evening. The main front will
move onshore Thursday morning and progress inland throughout the
day Thursday. Another round of gusty winds are expected, but
should be weaker than yesterday's winds. We'll likely be issuing
more wind headlines with the afternoon package, as well as
assessing any winter weather impacts. Another round of heavy rain
will impact the area as well, but given the shorter duration of
the heavy rain with this front, we aren't as concerned with flash
flooding potential. Nor are we expecting any main stem river
flooding given the break between systems we've been seeing.
Altogether, Thursday's front will be weaker than yesterday's but
will still have it's associated hazards. See the previous
discussion below for more details. /BR-y

&&

.AVIATION...For the 19/18Z TAFs...At the coast, VFR conditions
will continue into this afternoon. The TAF at North Bend shows MVFR
ceilings due to rain early this evening, but confidence on the
timing and the event happening is medium, so watch for updates. If
MVFR ceilings do not materialize, then VFR ceilings should last
through the TAF period, although MVFR ceilings could lower towards
the end of the period if the front arrives sooner. Wind speed shear
will be a concern tonight until the stronger winds begin to surface
Thursday morning.

Meanwhile LIFR ceilings and visibility in fog and low clouds are
currently in the Illinois Valley, Rogue Valley including Medford and
Grants Pass and portions of the Umpqua Basin, but not at Roseburg.
Current guidance shows improving conditions around 20z, but suspect
that may be too soon, so went with improving conditions at 21z for
Medford. There's a chance this could be delayed by an hour, so we'll
have to monitor. Once the fog and low clouds dissipate, VFR ceilings
are expected the rest of the day into tonight. There's a chance for
low clouds and fog to develop again in the same areas tonight,
including Roseburg due to low level inversion and lack of mid level
clouds. Above the inversion layer, winds aloft will increase, so
added low level wind shear for Roseburg and Medford.

East of the Cascades, other than some low clouds near and at
Lakeview for the next hour or two, VFR conditions will continue
through the TAF period. -Petrucelli

&&

.MARINE...Updated 845 AM PST Wednesday 18 December 2018...Moderate
south winds today will increase tonight as the next frontal system
approaches the region. Meanwhile, very steep and hazardous seas will
continue as heavy west swell persists. Southerly gales will develop
by Thursday morning, along with very steep wind-driven seas. Winds
will diminish once the front passes early Thursday afternoon, but
seas will remain steep and elevated through Friday morning before
dropping to around 10 feet Friday afternoon.

The break will be short lived, as the next system will arrive
Saturday night into Sunday morning. This system appears slightly
weaker, with south gales possible but not certain, and seas
increasing to only 16 feet or so, a far cry from the past several
events. Another strong front is possible Monday, with gales and
steep seas in excess of 18 feet.

Winds are expected to moderate and shift to the west to northwest
behind the Monday system as a slightly different pattern sets up
overhead. While small craft conditions are likely to continue for
some time, this change should mark the end of the seemingly constant
train of gales, and seas are expected to gradually diminish into
midweek. -BPN/Petrucelli

&&

.PREV DISCUSSION... /Issued 431 AM PST Wed Dec 19 2018/

DISCUSSION...As showers have mostly dissipated over the area
except for over northern Coos and Douglas counties, and with the
clearing and higher moisture after the extensive rainfall over the
region fog is forming in the west side valleys. The fog should
burn off by late morning, but may be more stubborn in the Grants
Pass area. The weak upper ridge that is over the area will begin
to push east with a warm front bringing light rain in the coastal
waters and brushing the coast this afternoon into Thursday
morning. The upper low deepens and approaches the coast with the
cold frontal band precipitation reaching the coast Thursday
morning. With the increased cloud cover moving in with the front
Thursday morning have not added fog to the west side valleys, but
if the front stall even a little, this could be a possibility.

As the front moves in, there is a slight change in the jet pattern
that brings a significant change in the dynamics of the system.
The strongest part of the jet moves into the coast near Portland,
bringing the right entrance region of the jet briefly over the
area, combining with the atmospheric river flow to bring brief
heavy rain to the coast and the southern coastal ranges into
Thursday afternoon. With the gap between the previous system that
brought heavy rain, and the short period of heavy rainfall, there
is no flooding expected with this system.

An upper level ridge builds again behind, with the front exiting
the region Friday morning. A weak upper ridge then builds over the
region Friday, with the next weak system dissipating offshore
Friday night into Saturday morning. Sven

&&

.MFR WATCHES/WARNINGS/ADVISORIES...
OR...High Surf Advisory until 10 PM PST this evening for ORZ021-022.

CA...None.

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

MNF/SBN/BPN

In the hours before

Local storm report, Dec 19, 10:43 AM PST, 3 hours 21 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MEDFORD OR
1043 AM PST WED DEC 19 2018

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

0800 AM     HEAVY RAIN       2 SSE PISTOL RIVER      42.26N 124.39W
12/19/2018  M1.18 INCH       CURRY              OR   TRAINED SPOTTER

            24 HOUR AMOUNT.

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 18, 9:48 PM PSTGale WatchMFR5 hr
Dec 19, 2:59 AM PSTGale WarningMFR37 hr
Dec 19, 2:04 PM PSTWind AdvisoryMFRKlamath, Lake32 hr
Dec 19, 2:05 PM PSTWinter Weather AdvisoryMFRDouglas, Jackson, Josephine, Klamath, Lake32 hr

Nearby

High Wind Warnings in Oregon, 2018Every high wind warning in 2018

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.