Alert archive / Oregon / Wind Advisories in 2017

Wind Advisory 40, NWS Medford, OR

November 22, 2017Klamath County, Lake County, Oregon; Modoc County, California

NWS Medford, OR issued this wind advisory at Nov 22, 2017, 2:28 PM PST for Klamath County, Lake County, Oregon; Modoc County, California. It took effect at Nov 23, 2017, 10:00 AM PST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Nov 22, 2017, 2:28 PM PST (22:28 UTC)
In effect from
Nov 23, 2017, 10:00 AM PST
Expired
Nov 23, 2017, 10:00 PM PST
In force
12 hr
Issued by
NWS Medford, OR

Counties Modoc County, CA, Klamath County, OR, Lake County, OR

The radar

The Medford radar (KMAX), 151 km from the middle of the area, began a volume at 22:30 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, 10.5 hours before the alert went out and 154 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Medford/Jackson, OR at 12:00Z on 2017-11-22Temperature 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 12:00Z on 2017-11-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 139 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1418 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
139 m²/s²
0-3 km storm-relative helicity
296 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

890 
WWUS76 KMFR 222228
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
228 PM PST Wed Nov 22 2017

CAZ085-ORZ030-031-231300-
/O.NEW.KMFR.WI.Y.0040.171123T1800Z-171124T0600Z/
Modoc County-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
228 PM PST Wed Nov 22 2017

...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 25 to 35 mph with gusts to 55 mph. 

* Timing...Winds will increase Thursday morning and peak Thursday
  afternoon and evening. 

* Locations include...Highway 31 between Paisley and Summer Lake.
  Cedar Pass on Hwy 299, The Warner Mountains and higher 
  elevations of Lake County.
 
* Impacts...Travel will be difficult for high profile vehicles. 
  Unsecured items may be blown around. 

* 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.

&&

$$
3 follow-up statements
268 
WWUS76 KMFR 231253
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
453 AM PST Thu Nov 23 2017


CAZ085-ORZ030-031-240100-
/O.CON.KMFR.WI.Y.0040.171123T1800Z-171124T0600Z/
Modoc County-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
453 AM PST Thu Nov 23 2017

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

* Winds...Southwest 25 to 35 mph with gusts to 55 mph.

* Timing...Winds will increase This morning and peak this 
  afternoon and evening. 

* Locations include...Highway 31 between Paisley and Summer 
  Lake. Cedar Pass on Hwy 299, The Warner Mountains and higher 
  elevations of Lake County. 

* Impacts...Travel will be difficult for high profile vehicles. 
  Unsecured items may be blown around. 

* 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.

&&

$$
507 
WWUS76 KMFR 231935
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
1135 AM PST Thu Nov 23 2017

CAZ085-ORZ030-031-241215-
/O.NEW.KMFR.HW.A.0019.171125T2100Z-171127T0000Z/
/O.CON.KMFR.WI.Y.0040.000000T0000Z-171124T0600Z/
Modoc County-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
1135 AM PST Thu Nov 23 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING...
...HIGH WIND WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SUNDAY AFTERNOON...

The National Weather Service in Medford has issued a High Wind
Watch...which is in effect from Saturday afternoon through Sunday
afternoon. 

* Winds...Southwest 25 to 35 mph with gusts to 55 mph then
  diminishing tonight. Winds could become strong late Saturday
  into Sunday, increasing to 30 to 45 mph with gusts to 70 mph.

* Timing...Winds will peak this afternoon and evening then
  diminish tonight. Winds will increase again Saturday afternoon 
  into Sunday.
 
* Locations include...Highway 31 between Paisley and Summer 
  Lake. Cedar Pass on Hwy 299, The Warner Mountains and higher 
  elevations of Lake County. 
  
* Impacts...During the Advisory, travel will be difficult for high
  profile vehicles and unsecured items may be blown around. For
  the Watch, travel could become dangerous for high profile
  vehicles, tree fall may occur, and power outages are possible. 

* 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 Watch means there is the potential for a hazardous 
high wind event. Sustained winds of at least 40 mph, or gusts of 
58 mph or stronger may occur. Continue to monitor the latest 
forecasts.

&&

$$

CAZ081-241215-
/O.NEW.KMFR.HW.A.0019.171125T2100Z-171127T0000Z/
Central Siskiyou County-
1135 AM PST Thu Nov 23 2017

...HIGH WIND WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SUNDAY AFTERNOON...

The National Weather Service in Medford has issued a High Wind
Watch...which is in effect from Saturday afternoon through Sunday
afternoon. 

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

* Timing...Strong winds are possible Saturday afternoon through 
  Sunday afternoon.

* Locations include...Weed, Gazelle and Interstate 5 between 
  Weed and Grenada. 

* Impacts...Travel could become very difficult for high profile 
  vehicles, tree fall may occur, and power outages are possible. 

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

Precautionary/preparedness actions...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph, or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$
585 
WWUS76 KMFR 240551
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
951 PM PST Thu Nov 23 2017

CAZ085-ORZ030-031-241800-
/O.EXP.KMFR.WI.Y.0040.000000T0000Z-171124T0600Z/
/O.CON.KMFR.HW.A.0019.171125T2100Z-171127T0000Z/
Modoc County-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
951 PM PST Thu Nov 23 2017

...HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON
THROUGH SUNDAY AFTERNOON...
...WIND ADVISORY WILL EXPIRE AT 10 PM PST THIS EVENING...

* Winds...Southwest 10 to 20 mph tonight. Winds are expected to
  increase to 30 to 45 mph with possible gusts to 70 mph late 
  Saturday through Sunday. 

* Timing...Winds will increase again Saturday afternoon into 
  Sunday. 

* Locations include...Highway 31 between Paisley and Summer 
  Lake. Cedar Pass on Hwy 299, The Warner Mountains and higher 
  elevations of Lake County. 

* Impacts...Travel could become dangerous for high profile 
  vehicles, tree fall may occur, and power outages are possible. 

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

Precautionary/preparedness actions...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph, or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$

CAZ081-241800-
/O.CON.KMFR.HW.A.0019.171125T2100Z-171127T0000Z/
Central Siskiyou County-
951 PM PST Thu Nov 23 2017

...HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON
THROUGH SUNDAY AFTERNOON...

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

* Timing...Strong winds are possible Saturday afternoon through 
  Sunday afternoon. 

* Locations include...Weed, Gazelle and Interstate 5 between 
  Weed and Grenada. 

* Impacts...Travel could become very difficult for high profile 
  vehicles, tree fall may occur, and power outages are possible. 

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

Precautionary/preparedness actions...

A High Wind Watch means there is the potential for a hazardous
high wind event. Sustained winds of at least 40 mph, or gusts of
58 mph or stronger may occur. Continue to monitor the latest
forecasts.

&&

$$

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.