Alert archive / Oregon / Wind Advisories in 2021

Wind Advisory 3, NWS Medford, OR

January 4, 2021Klamath County, Lake County, Oregon; Modoc County, Siskiyou County, California

NWS Medford, OR issued this wind advisory at Jan 4, 2021, 9:55 PM PST for Klamath County, Lake County, Oregon; Modoc County, Siskiyou County, California. It took effect at Jan 5, 2021, 10:00 PM PST. It was in force for 21 hr.

The area

The counties it named.

The facts

Issued
Jan 4, 2021, 9:55 PM PST (05:55 UTC)
In effect from
Jan 5, 2021, 10:00 PM PST
Expired
Jan 6, 2021, 6:35 PM PST
In force
21 hr
Issued by
NWS Medford, OR

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

The radar

The Medford radar (KMAX), 115 km from the middle of the area, began a volume at 05:53 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, 5.9 hours before the alert went out and 123 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 2021-01-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 18 joules per kilogram.LCLEL10008507005003002001001 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 2021-01-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 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
18 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
1032 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

776 
WWUS76 KMFR 050555
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
955 PM PST Mon Jan 4 2021

CAZ085-ORZ030-031-052300-
/O.NEW.KMFR.WI.Y.0003.210106T0900Z-210107T0600Z/
Modoc County-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
955 PM PST Mon Jan 4 2021

...WIND ADVISORY IN EFFECT FROM 1 AM TO 10 PM PST WEDNESDAY...

* WHAT...South to southwest winds 15 to 30 mph with gusts up to 50
  mph expected.

* WHERE...In California, Modoc County. In Oregon, Northern and
  Eastern Klamath County and Lake County.

* WHEN...From 1 AM to 10 PM PST Wednesday.

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

* ADDITIONAL DETAILS...The winds will affect Highway OR31 between
  Paisley and Silver Lake. The higher terrain of Modoc, Lake, and
  far eastern Klamath County will also be affected. 

* 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
4 follow-up statements
990 
WWUS76 KMFR 052229
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
229 PM PST Tue Jan 5 2021

CAZ081-061200-
/O.EXB.KMFR.WI.Y.0003.210106T0600Z-210107T0000Z/
Central Siskiyou County-
Including the city of Weed
229 PM PST Tue Jan 5 2021

...WIND ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 4 PM PST
WEDNESDAY...

* WHAT...South to southwest winds 25 to 30 mph with gusts up to 
  50 mph expected.

* WHERE...South central Shasta Valley, including the city of 
  Weed, and portions of Interstate 5 and Highway 97. 

* WHEN...From 10 PM this evening to 4 PM PST Wednesday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.
  Driving could become difficult, especially for high profile
  vehicles. 

* 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.

&&

$$

CAZ085-ORZ030-031-061200-
/O.EXT.KMFR.WI.Y.0003.210106T1200Z-210107T0600Z/
Modoc County-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
229 PM PST Tue Jan 5 2021

...WIND ADVISORY NOW IN EFFECT FROM 4 AM TO 10 PM PST WEDNESDAY...

* WHAT...South to southwest winds 25 to 30 mph with gusts up to 
  50 mph expected.

* WHERE...Portions of Lake, Modoc, and eastern Klamath Counties,
  including Highway 31 between Paisley and Silver Lake, Highway
  395 near Abert Lake, and the higher terrain of Yamsay Mountain,
  Winter Rim, and the Hart and Warner Mountains. 

* WHEN...From 4 AM to 10 PM PST Wednesday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.
  Driving could become difficult, especially for high profile
  vehicles. 

* 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
482 
WWUS76 KMFR 061135
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
335 AM PST Wed Jan 6 2021

CAZ085-ORZ030-031-070000-
/O.CON.KMFR.WI.Y.0003.210106T1200Z-210107T0600Z/
Modoc County-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
335 AM PST Wed Jan 6 2021

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

* WHAT...South to southwest winds 25 to 30 mph with gusts up to 
  50 mph expected.

* WHERE...Portions of Lake, Modoc, and eastern Klamath Counties, 
  including Highway 31 between Paisley and Silver Lake, Highway 
  395 near Abert Lake, and the higher terrain of Yamsay 
  Mountain, Winter Rim, and the Hart and Warner Mountains.

* WHEN...Until 10 PM PST Wednesday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result. Driving could become difficult, especially for high 
  profile vehicles.

* 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.

&&

$$

CAZ081-070000-
/O.CON.KMFR.WI.Y.0003.000000T0000Z-210107T0000Z/
Central Siskiyou County-
Including the city of Weed
335 AM PST Wed Jan 6 2021

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

* WHAT...South to southwest winds 25 to 30 mph with gusts up to 
  50 mph expected.

* WHERE...South central Shasta Valley, including the city of 
  Weed, and portions of Interstate 5 and Highway 97.

* WHEN...Until 4 PM PST Wednesday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result. Driving could become difficult, especially for high 
  profile vehicles.

* 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
017 
WWUS76 KMFR 062148
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
148 PM PST Wed Jan 6 2021

CAZ081-070300-
/O.EXT.KMFR.WI.Y.0003.000000T0000Z-210107T0300Z/
Central Siskiyou County-
Including the city of Weed
148 PM PST Wed Jan 6 2021

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

* WHAT...South to southwest winds 25 to 35 mph with gusts up to 
  55 mph expected.

* WHERE...South central Shasta Valley, including the city of 
  Weed, and portions of Interstate 5 and Highway 97.

* WHEN...Until 7 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. Driving could become difficult, especially for high 
  profile vehicles.

* 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.

&&

$$

CAZ085-ORZ030-031-070300-
/O.CON.KMFR.WI.Y.0003.000000T0000Z-210107T0600Z/
Modoc County-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
148 PM PST Wed Jan 6 2021

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

* WHAT...South to southwest winds 25 to 35 mph with gusts up to 
  55 mph expected.

* WHERE...Portions of Lake, Modoc, and eastern Klamath Counties, 
  including Highway 31 between Paisley and Silver Lake, Highway 
  395 near Abert Lake, and the higher terrain of Yamsay 
  Mountain, Winter Rim, and the Hart and Warner Mountains.

* WHEN...Until 10 PM PST Wednesday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result. Driving could become difficult, especially for high 
  profile vehicles.

* 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
395 
WWUS76 KMFR 070235
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
635 PM PST Wed Jan 6 2021

CAZ081-070345-
/O.CAN.KMFR.WI.Y.0003.000000T0000Z-210107T0300Z/
Central Siskiyou County-
635 PM PST Wed Jan 6 2021

...WIND ADVISORY IS CANCELLED...

Winds are diminishing.

$$

CAZ085-ORZ030-031-070345-
/O.CAN.KMFR.WI.Y.0003.000000T0000Z-210107T0600Z/
Modoc County-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
635 PM PST Wed Jan 6 2021

...WIND ADVISORY IS CANCELLED...

Winds are diminishing.

$$

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

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 4, 8:21 PM PSTGale WarningMFR38 hr
Jan 5, 2:02 PM PSTHazardous Seas WarningMFR32 hr

Nearby

Wind Advisories in Oregon, 2021Wind Advisories in California, 2021Every wind advisory in 2021

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.