Alert archive / California / Wind Advisories in 2021

Wind Advisory 21, NWS Medford, OR

October 10, 2021Modoc County, Siskiyou County, California; Klamath County, Lake County, Oregon

NWS Medford, OR issued this wind advisory at Oct 10, 2021, 10:58 PM PDT for Modoc County, Siskiyou County, California; Klamath County, Lake County, Oregon. It took effect at Oct 11, 2021, 1:00 PM PDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Oct 10, 2021, 10:58 PM PDT (05:58 UTC)
In effect from
Oct 11, 2021, 1:00 PM PDT
Expired
Oct 11, 2021, 9:00 PM PDT
In force
8 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 05:57 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, 6.0 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 2021-10-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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 2021-10-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 22 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
7 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
1313 m above ground
0-6 km bulk shear
72 kt
0-1 km storm-relative helicity
22 m²/s²
0-3 km storm-relative helicity
111 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

721 
WWUS76 KMFR 110558
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
1058 PM PDT Sun Oct 10 2021

CAZ081-112200-
/O.NEW.KMFR.WI.Y.0021.211011T2000Z-211012T0400Z/
/O.CON.KMFR.FZ.A.0007.211012T0800Z-211012T1600Z/
Central Siskiyou County-
Including the cities of Hilt, Weed, and Yreka
1058 PM PDT Sun Oct 10 2021

...WIND ADVISORY IN EFFECT FROM 1 PM TO 9 PM PDT MONDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE MONDAY NIGHT THROUGH
TUESDAY MORNING...

* WHAT...For the Wind Advisory, north winds 20 to 30 mph with
  gusts up to 45 mph expected. For the Freeze Watch, sub- 
  freezing temperatures as low as 23 possible.

* WHERE...Shasta Valley including Interstate 5 near Yreka and 
  Weed.

* WHEN...For the Wind Advisory, from 1 PM to 9 PM PDT Monday. 
  For the Freeze Watch, from late Monday night through Tuesday 
  morning.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result. Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* ADDITIONAL DETAILS...With leaves still on some deciduous trees,
  tree branches are more susceptible to damage in this early
  season wind event.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

CAZ084-085-ORZ029>031-112200-
/O.NEW.KMFR.WI.Y.0021.211011T2000Z-211012T0400Z/
Northeast Siskiyou and Northwest Modoc Counties-Modoc County-
Klamath Basin-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the cities of Dorris, Newell, Tulelake, Altamont, 
Klamath Falls, Beatty, Bly, Sprague River, Adel, Lakeview, 
and Valley Falls
1058 PM PDT Sun Oct 10 2021

...WIND ADVISORY IN EFFECT FROM 1 PM TO 9 PM PDT MONDAY...

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

* WHERE...In California, Northeast Siskiyou and Northwest Modoc
  Counties and Modoc County including Dorris, Tulelake, Tionesta,
  and Davis Creek. In Oregon, Klamath Basin, Northern and Eastern
  Klamath County and Western Lake County and Central and Eastern
  Lake County including Klamath Falls, Paisley, Lakeview.

* WHEN...From 1 PM to 9 PM PDT Monday.

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

* ADDITIONAL DETAILS...With leaves still on some deciduous trees,
  tree branches are more susceptible to damage in this early
  season wind event. Also, any hazard trees in wildfire burn scar
  areas are more susceptible to tree fall so please use extra
  caution in these areas.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ080-112200-
/O.CON.KMFR.FR.Y.0011.211011T0900Z-211011T1600Z/
/O.CON.KMFR.FZ.A.0007.211012T0800Z-211012T1600Z/
Western Siskiyou County-
Including the cities of Callahan, Etna, Fort Jones, Greenview, 
Happy Camp, and Scott Bar
1058 PM PDT Sun Oct 10 2021

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM PDT
MONDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE MONDAY NIGHT THROUGH
TUESDAY MORNING...

* WHAT...For the Frost Advisory, temperatures as low as 32 will 
  result in frost formation. For the Freeze Watch, sub-freezing 
  temperatures as low as 21 possible.

* WHERE...For the Frost Advisory, Scott Valley including Etna 
  and Fort Jones. For the Freeze Watch, Scott and Klamath River 
  Valleys.

* WHEN...For the Frost Advisory, from 2 AM to 9 AM PDT Monday. 
  For the Freeze Watch, from late Monday night through Tuesday 
  morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* ADDITIONAL DETAILS...Temperatures will trend colder Tuesday 
  morning compared to Monday morning.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

CAZ082-112200-
/O.CON.KMFR.FZ.A.0007.211012T0800Z-211012T1600Z/
South Central Siskiyou County-
Including the cities of Dunsmuir, McCloud, and Mount Shasta
1058 PM PDT Sun Oct 10 2021

...FREEZE WATCH REMAINS IN EFFECT FROM LATE MONDAY NIGHT THROUGH
TUESDAY MORNING...

* WHAT...Freezing temperatures ranging from the mid 20s to 32 
  degrees possible.

* WHERE...Valleys across western Siskiyou County, central 
  Siskiyou County and south-central Siskiyou County. This 
  includes the Shasta Valley and areas near Mount Shasta and 
  Dunsmuir.

* WHEN...From late Monday night through Tuesday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

ORZ023-024-026-112200-
/O.CON.KMFR.FZ.A.0007.211012T0900Z-211012T1600Z/
Central Douglas County-Eastern Curry County and Josephine County-
Jackson County-
Including the cities of Glendale, Cave Junction, Medford, 
and Ashland
1058 PM PDT Sun Oct 10 2021

...FREEZE WATCH REMAINS IN EFFECT FROM LATE MONDAY NIGHT THROUGH
TUESDAY MORNING...

* WHAT...Temperatures in the upper 20s to low 30s are possible.

* WHERE...South-central Douglas County, far eastern Curry 
  County, Josephine County and Jackson County. This includes the 
  Illinois, Applegate, and Rogue Valleys as well as southern 
  portions of the Umpqua Basin near Tiller, Azalea and Glendale.

* WHEN...From late Monday night through Tuesday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

Visit us at https://www.weather.gov/Medford
3 follow-up statements
769 
WWUS76 KMFR 111554
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
854 AM PDT Mon Oct 11 2021

CAZ080-120000-
/O.EXP.KMFR.FR.Y.0011.000000T0000Z-211011T1600Z/
/O.CON.KMFR.FZ.A.0007.211012T0800Z-211012T1600Z/
Western Siskiyou County-
Including the cities of Callahan, Etna, Fort Jones, Greenview, 
Happy Camp, and Scott Bar
854 AM PDT Mon Oct 11 2021

...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY MORNING...
...FROST ADVISORY WILL EXPIRE AT 9 AM PDT THIS MORNING...

* WHAT...Sub-freezing temperatures as low as 20 possible.

* WHERE...For the Freeze Watch, Scott and Klamath River Valleys.

* WHEN...From late tonight through Tuesday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

CAZ081-120000-
/O.CON.KMFR.WI.Y.0021.211011T2000Z-211012T0400Z/
/O.CON.KMFR.FZ.A.0007.211012T0800Z-211012T1600Z/
Central Siskiyou County-
Including the cities of Hilt, Weed, and Yreka
854 AM PDT Mon Oct 11 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
9 PM PDT THIS EVENING...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY MORNING...

* WHAT...For the Wind Advisory, north winds 20 to 30 mph with 
  gusts up to 45 mph expected. For the Freeze Watch, sub- 
  freezing temperatures as low as 23 possible.

* WHERE...Shasta Valley including Interstate 5 near Yreka and 
  Weed.

* WHEN...For the Wind Advisory, from 1 PM to 9 PM PDT Monday. 
  For the Freeze Watch, from late Monday night through Tuesday 
  morning.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result. Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* ADDITIONAL DETAILS...With leaves still on some deciduous 
  trees, tree branches are more susceptible to damage in this 
  early season wind event.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

CAZ084-085-ORZ029>031-120000-
/O.CON.KMFR.WI.Y.0021.211011T2000Z-211012T0400Z/
Northeast Siskiyou and Northwest Modoc Counties-Modoc County-
Klamath Basin-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the cities of Dorris, Newell, Tulelake, Altamont, 
Klamath Falls, Beatty, Bly, Sprague River, Adel, Lakeview, 
and Valley Falls
854 AM PDT Mon Oct 11 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
9 PM PDT THIS EVENING...

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

* WHERE...In California, Northeast Siskiyou and Northwest Modoc 
  Counties and Modoc County including Dorris, Tulelake, 
  Tionesta, and Davis Creek. In Oregon, Klamath Basin, Northern 
  and Eastern Klamath County and Western Lake County and Central 
  and Eastern Lake County including Klamath Falls, Paisley, 
  Lakeview.

* WHEN...From 1 PM to 9 PM PDT Monday.

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

* ADDITIONAL DETAILS...With leaves still on some deciduous 
  trees, tree branches are more susceptible to damage in this 
  early season wind event. Also, any hazard trees in wildfire 
  burn scar areas are more susceptible to tree fall so please 
  use extra caution in these areas.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ082-120000-
/O.CON.KMFR.FZ.A.0007.211012T0800Z-211012T1600Z/
South Central Siskiyou County-
Including the cities of Dunsmuir, McCloud, and Mount Shasta
854 AM PDT Mon Oct 11 2021

...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY MORNING...

* WHAT...Freezing temperatures ranging from the mid 20s to 32 
  degrees possible.

* WHERE...Valleys across western Siskiyou County, central 
  Siskiyou County and south-central Siskiyou County. This 
  includes the Shasta Valley and areas near Mount Shasta and 
  Dunsmuir.

* WHEN...From late Monday night through Tuesday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

ORZ023-024-026-120000-
/O.CON.KMFR.FZ.A.0007.211012T0900Z-211012T1600Z/
Central Douglas County-Eastern Curry County and Josephine County-
Jackson County-
Including the cities of Glendale, Cave Junction, Medford, 
and Ashland
854 AM PDT Mon Oct 11 2021

...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY MORNING...

* WHAT...Temperatures in the upper 20s to low 30s are possible.

* WHERE...South-central Douglas County, far eastern Curry 
  County, Josephine County and Jackson County. This includes the 
  Illinois, Applegate, and Rogue Valleys as well as southern 
  portions of the Umpqua Basin near Tiller, Azalea and Glendale.

* WHEN...From late Monday night through Tuesday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

Visit us at https://www.weather.gov/Medford
841 
WWUS76 KMFR 112036
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
136 PM PDT Mon Oct 11 2021

CAZ080-120500-
/O.UPG.KMFR.FZ.A.0007.211012T0800Z-211012T1600Z/
/O.NEW.KMFR.FR.Y.0012.211012T0800Z-211012T1600Z/
/O.NEW.KMFR.FZ.W.0012.211012T0800Z-211012T1600Z/
Western Siskiyou County-
Including the cities of Callahan, Etna, Fort Jones, Greenview, 
and Happy Camp
136 PM PDT Mon Oct 11 2021

...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM PDT TUESDAY...
...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM PDT TUESDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low
  as 20 degrees expected. For the Frost Advisory, temperatures as
  low as 33 degrees will result in frost formation.

* WHERE...Areas in the freeze warning include the Scott Valley and
  portions of the Klamath River Valley. This includes the
  communities of Fort Jones, Etna, Greenview, and Happy Camp. The
  frost advisory covers most other areas of the Klamath River
  Valley.

* WHEN...From 1 AM to 9 AM PDT Tuesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing. Bring pets inside for
the night. Remember, if it is too cold for you, it is too cold for
them.

&&

$$

ORZ023-024-026-120500-
/O.UPG.KMFR.FZ.A.0007.211012T0900Z-211012T1600Z/
/O.NEW.KMFR.FR.Y.0012.211012T0800Z-211012T1600Z/
/O.NEW.KMFR.FZ.W.0012.211012T0800Z-211012T1600Z/
Central Douglas County-Eastern Curry County and Josephine County-
Jackson County-
Including the cities of Drain, Sutherlin, Green, Myrtle Creek, 
Canyonville, Glendale, Grants Pass, Cave Junction, Medford, 
and Ashland
136 PM PDT Mon Oct 11 2021

...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM PDT TUESDAY...
...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM PDT TUESDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low
  as 20 degrees expected. For the Frost Advisory, temperatures as
  low as 33 will result in frost formation.

* WHERE...For the Freeze warning: The Illinois Valley in Josephine
  County, almost all of Jackson County including the Applegate,
  and Rogue Valleys, and southern portions of the Umpqua Basin 
  near Tiller, Azalea and Glendale in south Central Douglas 
  County. For the frost advisory, the remainder of Josephine 
  County, eastern Curry County, and Most of Douglas County 
  including Roseburg, Camas Valley, Sutherlin, Glide, and Drain.

* WHEN...From 1 AM to 9 AM PDT Tuesday.

* IMPACTS...Frost and freeze conditions will kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing. Bring pets inside for
the night. Remember, if it is too cold for you, it is too cold for
them.

&&

$$

CAZ081-120500-
/O.UPG.KMFR.FZ.A.0007.211012T0800Z-211012T1600Z/
/O.NEW.KMFR.FZ.W.0012.211012T0800Z-211012T1600Z/
/O.CON.KMFR.WI.Y.0021.000000T0000Z-211012T0400Z/
Central Siskiyou County-
Including the cities of Hilt, Weed, and Yreka
136 PM PDT Mon Oct 11 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING...
...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM PDT TUESDAY...

* WHAT...For the Wind Advisory, north winds 15 to 25 mph with
  gusts up to 45 mph expected. For the Freeze Warning, sub-
  freezing temperatures as low as 22 degrees expected. 

* WHERE...For the Wind Advisory, a portion of the eastern Shasta
  Valley including Grenada and east of the Montague Airport. For
  the Freeze Warning, the entirety of Central Siskiyou County
  including the entire Shasta Valley.

* WHEN...For the Wind Advisory, until 9 PM PDT this evening. For 
  the Freeze Warning, from 1 AM to 9 AM PDT Tuesday. 
 
* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.
  Frost and freeze conditions will kill crops, other sensitive
  vegetation and possibly damage unprotected outdoor plumbing.
 
* View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

CAZ082-120500-
/O.UPG.KMFR.FZ.A.0007.211012T0800Z-211012T1600Z/
/O.NEW.KMFR.FZ.W.0012.211012T0800Z-211012T1600Z/
South Central Siskiyou County-
Including the cities of Dunsmuir and Mount Shasta
136 PM PDT Mon Oct 11 2021

...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM PDT TUESDAY...

* WHAT...Sub-freezing temperatures as low as 18 degrees expected.

* WHERE...South Central Siskiyou County west of McCloud. This
  includes Mt. Shasta City and Dunsmuir. 

* WHEN...From 1 AM to 9 AM PDT Tuesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* ADDITIONAL DETAILS...While McCloud and areas eastward will see
  freezing temperatures, these areas have already seen a hard
  freeze and their growing season is over.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

CAZ084-085-ORZ029>031-120400-
/O.CON.KMFR.WI.Y.0021.000000T0000Z-211012T0400Z/
Northeast Siskiyou and Northwest Modoc Counties-Modoc County-
Klamath Basin-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the cities of Dorris, Newell, Tulelake, Altamont, 
Klamath Falls, Beatty, Bly, Sprague River, Adel, Lakeview, 
and Valley Falls
136 PM PDT Mon Oct 11 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING...

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

* WHERE...In California, Northeast Siskiyou and Northwest Modoc 
  Counties and Modoc County including Dorris, Tulelake, 
  Tionesta, and Davis Creek. In Oregon, Klamath Basin, Northern 
  and Eastern Klamath County and Western Lake County and Central 
  and Eastern Lake County including Klamath Falls, Paisley, 
  Lakeview.

* WHEN...Until 9 PM PDT Monday.

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

* ADDITIONAL DETAILS...With leaves still on some deciduous trees,
  tree branches are more susceptible to damage in this early
  season wind event. Also, any hazard trees in wildfire burn scar
  areas are more susceptible to tree fall so please use extra
  caution in these areas. Although the winds will diminish after 
  the advisory ends, cold temperatures will combine with the 
  breezy winds to create very low wind chills for this time of 
  year.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

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
524 
WWUS76 KMFR 120338
NPWMFR

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
838 PM PDT Mon Oct 11 2021

CAZ081-121600-
/O.EXP.KMFR.WI.Y.0021.000000T0000Z-211012T0400Z/
/O.CON.KMFR.FZ.W.0012.211012T0800Z-211012T1600Z/
Central Siskiyou County-
Including the cities of Hilt, Weed, and Yreka
838 PM PDT Mon Oct 11 2021

...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM PDT
TUESDAY...
...WIND ADVISORY WILL EXPIRE AT 9 PM PDT THIS EVENING...

* WHAT...Sub-freezing temperatures as low as 22 expected.

* WHERE...For the Freeze Warning, the entirety of Central 
  Siskiyou County including the entire Shasta Valley.

* WHEN...For the Wind Advisory, until 9 PM PDT this evening. For 
  the Freeze Warning, from 1 AM to 9 AM PDT Tuesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

CAZ084-085-ORZ029>031-120445-
/O.EXP.KMFR.WI.Y.0021.000000T0000Z-211012T0400Z/
Northeast Siskiyou and Northwest Modoc Counties-Modoc County-
Klamath Basin-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the cities of Dorris, Newell, Tulelake, Altamont, 
Klamath Falls, Beatty, Bly, Sprague River, Adel, Lakeview, 
and Valley Falls
838 PM PDT Mon Oct 11 2021

...WIND ADVISORY WILL EXPIRE AT 9 PM PDT THIS EVENING...

Breezy conditions will continue tonight but won't reach Advisory
criteria.

$$

CAZ080-121600-
/O.CON.KMFR.FZ.W.0012.211012T0800Z-211012T1600Z/
/O.CON.KMFR.FR.Y.0012.211012T0800Z-211012T1600Z/
Western Siskiyou County-
Including the cities of Callahan, Etna, Fort Jones, Greenview, 
and Happy Camp
838 PM PDT Mon Oct 11 2021

...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM PDT
TUESDAY...
...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM PDT
TUESDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 20 degrees expected. For the Frost Advisory, 
  temperatures as low as 33 degrees will result in frost 
  formation.

* WHERE...Areas in the freeze warning include the Scott Valley 
  and portions of the Klamath River Valley. This includes the 
  communities of Fort Jones, Etna, Greenview, and Happy Camp. 
  The frost advisory covers most other areas of the Klamath 
  River Valley.

* WHEN...From 1 AM to 9 AM PDT Tuesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing. Bring pets inside for
the night. Remember, if it is too cold for you, it is too cold
for them.

&&

$$

ORZ023-024-026-121600-
/O.CON.KMFR.FZ.W.0012.211012T0800Z-211012T1600Z/
/O.CON.KMFR.FR.Y.0012.211012T0800Z-211012T1600Z/
Central Douglas County-Eastern Curry County and Josephine County-
Jackson County-
Including the cities of Drain, Sutherlin, Green, Myrtle Creek, 
Canyonville, Glendale, Grants Pass, Cave Junction, Medford, 
and Ashland
838 PM PDT Mon Oct 11 2021

...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM PDT
TUESDAY...
...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM PDT
TUESDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 20 degrees expected. For the Frost Advisory, 
  temperatures as low as 33 will result in frost formation.

* WHERE...For the Freeze warning: The Illinois Valley in 
  Josephine County, almost all of Jackson County including the 
  Applegate, and Rogue Valleys, and southern portions of the 
  Umpqua Basin near Tiller, Azalea and Glendale in south Central 
  Douglas County. For the frost advisory, the remainder of 
  Josephine County, eastern Curry County, and Most of Douglas 
  County including Roseburg, Camas Valley, Sutherlin, Glide, and 
  Drain.

* WHEN...From 1 AM to 9 AM PDT Tuesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing. Bring pets inside for
the night. Remember, if it is too cold for you, it is too cold
for them.

&&

$$

CAZ082-121600-
/O.CON.KMFR.FZ.W.0012.211012T0800Z-211012T1600Z/
South Central Siskiyou County-
Including the cities of Dunsmuir and Mount Shasta
838 PM PDT Mon Oct 11 2021

...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM PDT
TUESDAY...

* WHAT...Sub-freezing temperatures as low as 18 degrees expected.

* WHERE...South Central Siskiyou County west of McCloud. This 
  includes Mt. Shasta City and Dunsmuir.

* WHEN...From 1 AM to 9 AM PDT Tuesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

* ADDITIONAL DETAILS...While McCloud and areas eastward will see 
  freezing temperatures, these areas have already seen a hard 
  freeze and their growing season is over.

* View the hazard area in detail at 
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

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

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 10, 8:54 PM PDTFrost AdvisoryMFRSiskiyou12 hr
Oct 11, 1:36 PM PDTFrost AdvisoryMFRSiskiyou19 hr
Oct 11, 1:36 PM PDTFreeze WarningMFRSiskiyou19 hr
Oct 11, 2:30 PM PDTSmall Craft AdvisoryMFR4 days

Nearby

Wind Advisories in California, 2021Wind Advisories in Oregon, 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.