Alert archive / Oregon / Wind Advisories in 2017

Wind Advisory 36, NWS Medford, OR

November 12, 2017Klamath County, Lake County, Oregon; Siskiyou County, California

NWS Medford, OR issued this wind advisory at Nov 12, 2017, 2:15 AM PST for Klamath County, Lake County, Oregon; Siskiyou County, California. It took effect at Nov 12, 2017, 4:00 PM PST. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued
Nov 12, 2017, 2:15 AM PST (10:15 UTC)
In effect from
Nov 12, 2017, 4:00 PM PST
Expired
Nov 13, 2017, 4:00 PM PST
In force
24 hr
Issued by
NWS Medford, OR

Counties Siskiyou County, CA, Klamath County, OR, Lake County, OR

The radar

The Medford radar (KMAX), 103 km from the middle of the area, began a volume at 10:17 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 00:00Z, 10.3 hours before the alert went out and 105 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 2017-11-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 9 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 00:00Z on 2017-11-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.19395878Sfc1 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
9 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
1360 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
195 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

992 
WWUS76 KMFR 121015
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
215 AM PST Sun Nov 12 2017


ORZ030-031-122215-
/O.UPG.KMFR.HW.A.0017.171113T0900Z-171114T0000Z/
/O.NEW.KMFR.HW.W.0016.171113T0900Z-171114T0000Z/
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
215 AM PST Sun Nov 12 2017

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

The National Weather Service in Medford has issued a High Wind
Warning...which is in effect from 1 AM to 4 PM PST Monday. The
High Wind Watch is no longer in effect. 

* Winds...30 to 40 mph... gusting to 65 mph.

* Timing...Winds will gradually increase Sunday night... then 
  rapidly increase Monday morning, peaking by late morning, and 
  gradually diminishing Monday afternoon. 

* Locations include...Highway 31 between Summer Lake and 
  Paisley, and higher terrain west of Winter Rim. This also 
  includes Highway 395 south of Alkali Lake, and highway 140 
  east of Adel. 

* Impacts...Driving conditions will be dangerous, especially for 
  high profile vehicles. Stronger winds could down trees and 
  power lines, and cause flying debris. 

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

Precautionary/preparedness actions...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 50 mph or gusts 
of 75 mph or more can lead to property damage. Travel will be 
impacted, especially for high profile vehicles.|

&&

$$

CAZ081-122215-
/O.NEW.KMFR.WI.Y.0036.171113T0300Z-171113T1800Z/
Central Siskiyou County-
Including the city of Weed
215 AM PST Sun Nov 12 2017

...WIND ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO 10 AM PST
MONDAY...

The National Weather Service in Medford has issued a Wind
Advisory...which is in effect from 7 PM this evening to 10 AM PST
Monday. 

* Winds...30 to 35 mph... gusting to 50 mph

* Timing...Winds will be strongest Sunday night around midnight.
  Advisory winds are expected to continue into the early Monday
  morning hours.

* Locations include...Interstate 5 and the cities of Weed, 
  Gazelle and Grenada in the Shasta valley. 

* Impacts...Driving conditions will be dangerous, especially for
  high profile vehicles. Stronger winds could down trees and power
  lines, and cause flying debris. 

* 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. 

&&

$$

CZS
4 follow-up statements
444 
WWUS76 KMFR 122219
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
219 PM PST Sun Nov 12 2017

ORZ030-031-131200-
/O.EXB.KMFR.WI.Y.0036.171113T0900Z-171114T0000Z/
/O.CON.KMFR.HW.W.0016.171113T0900Z-171114T0000Z/
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the cities of Adel and Valley Falls
219 PM PST Sun Nov 12 2017

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

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

* Winds: South 30 to 40 mph with gusts up to 65 mph in the Warning
  area. Elsewhere, south 25 to 30 mph with gusts up to 45 mph.

* Locations in the Warning include: Highway 31 between Summer Lake
  and Paisley, Highway 395 south of Alkali Lake, Highway 140 east
  of Adel, Winter Rim, and the Warner and Hart mountains. 

* Locations in the Advisory include: Valley Falls, Adel, Alkali
  Lake, and portions of Highways 31, 395, and 140. 

* Timing: Winds will increase through Sunday night, rapidly 
  increase Monday morning, peak by late morning, then gradually 
  diminishing Monday afternoon. 

* Impacts: Driving conditions will be dangerous, especially for 
  high profile vehicles. Stronger winds could down trees and power
  lines, and cause flying debris. 

* 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.

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 vehicle.

&&

$$

CAZ081-131200-
/O.EXT.KMFR.WI.Y.0036.171113T0000Z-171113T1800Z/
Central Siskiyou County-
Including the city of Weed
219 PM PST Sun Nov 12 2017

...WIND ADVISORY NOW IN EFFECT FROM 4 PM THIS AFTERNOON TO 10 AM
PST MONDAY...

* Winds: 30 to 35 mph with gusts up to 50 mph.

* Locations include: Interstate 5 between Montague and Weed, and
  portions of Highway 97 east of Weed. 
 
* Timing: Winds will increase through Sunday night, peak Monday
  morning, then quickly diminish in the afternoon. 

* Impacts: The strongest winds are expected in the southern 
  Shasta Valley near Weed. Driving conditions will be dangerous, 
  especially for high profile vehicles. Stronger winds could down 
  trees and power lines, and cause flying debris. 

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

Precautionary/preparedness actions...

A Wind Advisory means that winds of 25 to 39 mph are expected 
with higher gusts possible. Winds this strong can make driving 
difficult, especially for high profile vehicles. Use extra 
caution.

&&

$$

BPN
498 
WWUS76 KMFR 131013
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
213 AM PST Mon Nov 13 2017

ORZ030-031-132215-
/O.CON.KMFR.HW.W.0016.000000T0000Z-171114T0000Z/
/O.CON.KMFR.WI.Y.0036.000000T0000Z-171114T0000Z/
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the cities of Adel and Valley Falls
213 AM PST Mon Nov 13 2017

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

* Winds: South 30 to 40 mph with gusts up to 65 mph in the 
  Warning area. Elsewhere, south 25 to 30 mph with gusts up to 
  45 mph. 

* Locations in the Warning include: Highway 31 between Summer 
  Lake and Paisley, Highway 395 south of Alkali Lake, Highway 
  140 east of Adel, Winter Rim, and the Warner and Hart 
  mountains. 

* Locations in the Advisory include: Valley Falls, Adel, Alkali 
  Lake, and portions of Highways 31, 395, and 140. 

* Timing: Winds will increase through Sunday night, rapidly 
  increase Monday morning, peak by late morning, then gradually 
  diminishing Monday afternoon. 

* Impacts: Driving conditions will be dangerous, especially for 
  high profile vehicles. Stronger winds could down trees and 
  power lines, and cause flying debris. 

* 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.

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 vehicle.

&&

$$

CAZ081-131500-
/O.EXT.KMFR.WI.Y.0036.000000T0000Z-171113T1500Z/
Central Siskiyou County-
Including the city of Weed
213 AM PST Mon Nov 13 2017

...WIND ADVISORY NOW IN EFFECT UNTIL 7 AM PST THIS MORNING...

* Winds: 20 to 30 mph with gusts up to 50 mph.

* Locations include: Interstate 5 between Montague and Weed, and 
  portions of Highway 97 east of Weed. 

* Timing: Winds will remain strong during the overnight hours,
  then diminish Monday morning.

* Impacts: The strongest winds are expected in the southern 
  Shasta Valley near Weed. Driving conditions will be dangerous, 
  especially for high profile vehicles. Stronger winds could 
  down trees and power lines, and cause flying debris. 

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

Precautionary/preparedness actions...

A Wind Advisory means that winds of 25 to 39 mph are expected
with higher gusts possible. Winds this strong can make driving
difficult, especially for high profile vehicles. Use extra
caution.

&&

$$
562 
WWUS76 KMFR 131436
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
636 AM PST Mon Nov 13 2017


CAZ081-131545-
/O.EXP.KMFR.WI.Y.0036.000000T0000Z-171113T1500Z/
Central Siskiyou County-
Including the city of Weed
636 AM PST Mon Nov 13 2017

...WIND ADVISORY WILL EXPIRE AT 7 AM PST THIS MORNING...

Winds in the Shasta valley has dropped below advisory levels.

$$

ORZ030-031-140000-
/O.CON.KMFR.HW.W.0016.000000T0000Z-171114T0000Z/
/O.CON.KMFR.WI.Y.0036.000000T0000Z-171114T0000Z/
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the cities of Adel and Valley Falls
636 AM PST Mon Nov 13 2017

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

* Winds: South 30 to 40 mph with gusts up to 65 mph in the 
  Warning area. Elsewhere, south 25 to 30 mph with gusts up to 
  45 mph. 

* Locations in the Warning include: Highway 31 between Summer 
  Lake and Paisley, Highway 395 south of Alkali Lake, Highway 
  140 east of Adel, Winter Rim, and the Warner and Hart 
  mountains. 

* Locations in the Advisory include: Valley Falls, Adel, Alkali 
  Lake, and portions of Highways 31, 395, and 140. 

* Timing: Winds will increase through Sunday night, rapidly 
  increase Monday morning, peak by late morning, then gradually 
  diminishing Monday afternoon. 

* Impacts: Driving conditions will be dangerous, especially for 
  high profile vehicles. Stronger winds could down trees and 
  power lines, and cause flying debris. 

* 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.

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 vehicle.

&&

$$
576 
WWUS76 KMFR 132341
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
341 PM PST Mon Nov 13 2017


ORZ030-031-140045-
/O.EXP.KMFR.HW.W.0016.000000T0000Z-171114T0000Z/
/O.EXP.KMFR.WI.Y.0036.000000T0000Z-171114T0000Z/
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the cities of Adel and Valley Falls
341 PM PST Mon Nov 13 2017

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

Winds are gradually lowering late this afternoon into this
evening. 

$$

CC

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 11, 8:04 PM PSTSmall Craft AdvisoryMFR32 hr
Nov 12, 2:15 AM PSTHigh Wind WarningMFRKlamath, Lake38 hr
Nov 12, 2:17 PM PSTGale WatchMFR24 hr

Nearby

Wind Advisories in Oregon, 2017Wind Advisories in California, 2017Every wind advisory in 2017

Sources

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