Alert archive / California / High Wind Watches in 2020

High Wind Watch 2, NWS Eureka, CA

October 23, 20204 counties in California

NWS Eureka, CA issued this high wind watch at Oct 23, 2020, 12:08 PM PDT for 4 counties in California. It took effect at Oct 25, 2020, 5:00 PM PDT. It was in force for .

The area

The counties it named.

The facts

Issued
Oct 23, 2020, 12:08 PM PDT (19:08 UTC)
In effect from
Oct 25, 2020, 5:00 PM PDT
Expired
Oct 24, 2020, 11:45 AM PDT
In force
Issued by
NWS Eureka, CA

Counties Humboldt County, CA, Lake County, CA, Mendocino County, CA, Trinity County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 102 km from the middle of the area, began a volume at 19:10 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

Oakland, CA (KOAK), launched 12:00Z, 7.1 hours before the alert went out and 267 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, Oakland, CA at 12:00Z on 2020-10-23Temperature 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, Oakland, CA at 12:00Z on 2020-10-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -52 square meters per square second.1939Sfc1 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
1273 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-52 m²/s²
0-3 km storm-relative helicity
-19 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

842 
WWUS76 KEKA 231908
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
1208 PM PDT Fri Oct 23 2020

CAZ107-108-111-240430-
/O.NEW.KEKA.FR.Y.0028.201024T1100Z-201024T1500Z/
Northern Trinity-Southern Trinity-Northeastern Mendocino Interior-
1208 PM PDT Fri Oct 23 2020

...FROST ADVISORY IN EFFECT FROM 4 AM TO 8 AM PDT SATURDAY...

* WHAT...Temperatures as low as 36 will result in frost 
  formation.

* WHERE...Northern Trinity, Southern Trinity and Northeastern 
  Mendocino Interior Counties.

* WHEN...From 4 AM to 8 AM PDT Saturday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

CAZ114-115-240430-
/O.NEW.KEKA.HW.A.0002.201026T0000Z-201026T1800Z/
Northern Lake County-Southern Lake County-
1208 PM PDT Fri Oct 23 2020

...HIGH WIND WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY
MORNING ABOVE 1500 FEET...

* WHAT...Northeast winds 25 to 40 mph with gusts up to 60 mph 
  possible above 1500 feet.

* WHERE...Northern Lake County and Southern Lake County Counties.

* WHEN...From Sunday afternoon through Monday morning.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$
3 follow-up statements
851 
WWUS76 KEKA 240438
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
938 PM PDT Fri Oct 23 2020

CAZ108-111-241245-
/O.EXA.KEKA.HW.A.0002.201026T0000Z-201026T1800Z/
/O.CON.KEKA.FR.Y.0028.201024T1100Z-201024T1500Z/
Southern Trinity-Northeastern Mendocino Interior-
938 PM PDT Fri Oct 23 2020

...FROST ADVISORY REMAINS IN EFFECT FROM 4 AM TO 8 AM PDT
SATURDAY...
...HIGH WIND WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY
MORNING FOR ELEVATIONS ABOVE 2500 FEET...

* WHAT...Northeast winds 25 to 45 mph with gusts up to 70 mph
  possible above 2500 feet. Low temperatures in the low to mid 
  30s Saturday morning. 

* WHERE...Southern Trinity and Northeastern Mendocino Interior 
  Counties exposed ridgetops above 2500 feet.

* WHEN...From Sunday afternoon through Monday morning.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

Take steps now to protect tender plants from the cold.

&&

$$

CAZ107-241245-
/O.CON.KEKA.FR.Y.0028.201024T1100Z-201024T1500Z/
Northern Trinity-
938 PM PDT Fri Oct 23 2020

...FROST ADVISORY REMAINS IN EFFECT FROM 4 AM TO 8 AM PDT
SATURDAY...

* WHAT...Temperatures as low as 36 will result in frost 
  formation.

* WHERE...Northern Trinity, Southern Trinity and Northeastern 
  Mendocino Interior Counties.

* WHEN...From 4 AM to 8 AM PDT Saturday.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

CAZ110-113-241245-
/O.EXA.KEKA.HW.A.0002.201026T0000Z-201026T1800Z/
Northwestern Mendocino Interior-Southeastern Mendocino Interior-
938 PM PDT Fri Oct 23 2020

...HIGH WIND WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY
MORNING ABOVE 1500 FEET...

* WHAT...Northeast winds 25 to 45 mph with gusts up to 70 mph
  possible over exposed mountain ridges above 2500 feet. 

* WHERE...Northwestern Mendocino Interior and Southeastern
  Mendocino Interior Counties exposed ridgetops above 2500 feet.

* WHEN...From Sunday afternoon through Monday morning.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

CAZ106-241245-
/O.EXA.KEKA.HW.A.0002.201026T0000Z-201026T1800Z/
Southern Humboldt Interior-
938 PM PDT Fri Oct 23 2020

...HIGH WIND WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY
MORNING ABOVE 2500 FEET...

* WHAT...Northeast winds 25 to 45 mph with gusts up to 70 mph
  possible over exposed mountain ridges above 2500 feet.

* WHERE...Southern Humboldt Interior County exposed ridgetops
  above 2500 feet.

* WHEN...From Sunday afternoon through Monday morning.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

CAZ114-115-241245-
/O.CON.KEKA.HW.A.0002.201026T0000Z-201026T1800Z/
Northern Lake County-Southern Lake County-
938 PM PDT Fri Oct 23 2020

...HIGH WIND WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH MONDAY MORNING ABOVE 1500 FEET...

* WHAT...Northeast winds 25 to 45 mph with gusts up to 70 mph 
  possible above 1500 feet.

* WHERE...Northern Lake County and Southern Lake County Counties.

* WHEN...From Sunday afternoon through Monday morning.

* IMPACTS...Damaging winds could blow down trees and power lines.
  Widespread power outages are possible. Travel could be
  difficult, especially for high profile vehicles.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$
757 
WWUS76 KEKA 241039
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
339 AM PDT Sat Oct 24 2020

CAZ108-111-241845-
/O.NEW.KEKA.FZ.A.0006.201026T0700Z-201026T1600Z/
/O.CON.KEKA.FR.Y.0028.201024T1100Z-201024T1500Z/
/O.CON.KEKA.HW.A.0002.201026T0000Z-201026T1800Z/
Southern Trinity-Northeastern Mendocino Interior-
339 AM PDT Sat Oct 24 2020

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM PDT THIS MORNING...
...HIGH WIND WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH MONDAY MORNING ABOVE 2500 FEET...
...FREEZE WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY
MORNING...

* WHAT...For the Frost Advisory, temperatures as low as 35 will 
  result in frost formation. For the High Wind Watch above 2500 
  feet, northeast winds 15 to 25 mph with gusts up to 50 mph 
  possible. For the Freeze Watch, sub-freezing temperatures as 
  low as 26 to 29 possible.

* WHERE...Southern Trinity and Northeastern Mendocino Interior 
  Counties.

* WHEN...For the Frost Advisory, until 8 AM PDT this morning. 
  For the High Wind Watch, from Sunday afternoon through Monday 
  morning. For the Freeze Watch, from late Sunday night through 
  Monday morning.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles. Frost and 
  freeze conditions could kill crops, other sensitive vegetation 
  and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

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.

&&

$$

CAZ107-241845-
/O.NEW.KEKA.FZ.A.0006.201026T0700Z-201026T1600Z/
/O.CON.KEKA.FR.Y.0028.201024T1100Z-201024T1500Z/
Northern Trinity-
339 AM PDT Sat Oct 24 2020

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM PDT THIS MORNING...
...FREEZE WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY
MORNING...

* WHAT...For the Frost Advisory, temperatures as low as 36 will 
  result in frost formation. For the Freeze Watch, sub-freezing 
  temperatures as low as 25 possible.

* WHERE...Northern Trinity County.

* WHEN...For the Frost Advisory, until 8 AM PDT this morning. 
  For the Freeze Watch, from late Sunday night through Monday 
  morning.

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

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.

&&

$$

CAZ110-114-241845-
/O.NEW.KEKA.FZ.A.0006.201026T0700Z-201026T1600Z/
/O.CON.KEKA.HW.A.0002.201026T0000Z-201026T1800Z/
Northwestern Mendocino Interior-Northern Lake County-
339 AM PDT Sat Oct 24 2020

...HIGH WIND WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH MONDAY MORNING ABOVE 1500 FEET...
...FREEZE WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY
MORNING...

* WHAT...For the Freeze Watch, sub-freezing temperatures as low as
  28 possible. For the High Wind Watch above 1500 feet, northeast
  winds 25 to 35 mph with gusts up to 60 mph possible.

* WHERE...Northwestern Mendocino Interior and Northern Lake 
  County Counties.

* WHEN...For the Freeze Watch, from late Sunday night through 
  Monday morning. For the High Wind Watch, from Sunday afternoon 
  through Monday morning.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles. Frost and 
  freeze conditions could kill crops, other sensitive vegetation 
  and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

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.

&&

$$

CAZ106-241845-
/O.NEW.KEKA.FZ.A.0006.201026T0700Z-201026T1600Z/
/O.CON.KEKA.HW.A.0002.201026T0000Z-201026T1800Z/
Southern Humboldt Interior-
339 AM PDT Sat Oct 24 2020

...HIGH WIND WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH MONDAY MORNING ABOVE 2500 FEET...
...FREEZE WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY
MORNING...

* WHAT...For the Freeze Watch, sub-freezing temperatures as low 
  as 30 possible. For the High Wind Watch above 2500 feet, east 
  winds 20 to 30 mph with gusts up to 60 mph possible.

* WHERE...Southern Humboldt Interior County.

* WHEN...For the Freeze Watch, from late Sunday night through 
  Monday morning. For the High Wind Watch, from Sunday afternoon 
  through Monday morning.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles. Frost and 
  freeze conditions could kill crops, other sensitive vegetation 
  and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

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.

&&

$$

CAZ105-241845-
/O.NEW.KEKA.FZ.A.0006.201026T0700Z-201026T1600Z/
Northern Humboldt Interior-
339 AM PDT Sat Oct 24 2020

...FREEZE WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH MONDAY
MORNING...

* WHAT...Sub-freezing temperatures as low as 29 possible.

* WHERE...Northern Humboldt Interior County.

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

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

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.

&&

$$

CAZ113-115-241845-
/O.CON.KEKA.HW.A.0002.201026T0000Z-201026T1800Z/
Southeastern Mendocino Interior-Southern Lake County-
339 AM PDT Sat Oct 24 2020

...HIGH WIND WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON
THROUGH MONDAY MORNING ABOVE 1500 FEET...

* WHAT...Northeast winds 25 to 45 mph with gusts up to 70 mph 
  possible over exposed mountain ridges above 2500 feet.

* WHERE...Northwestern Mendocino Interior and Southeastern 
  Mendocino Interior Counties exposed ridgetops above 2500 feet.

* WHEN...From Sunday afternoon through Monday morning.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

* ADDITIONAL DETAILS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$
055 
WWUS76 KEKA 241845
NPWEKA

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
1145 AM PDT Sat Oct 24 2020

CAZ108-250415-
/O.CAN.KEKA.FZ.A.0006.201026T0700Z-201026T1600Z/
/O.UPG.KEKA.HW.A.0002.201026T0000Z-201026T1800Z/
/O.NEW.KEKA.WI.Y.0004.201026T0000Z-201026T1800Z/
/O.NEW.KEKA.FZ.W.0013.201025T1100Z-201025T1500Z/
/O.NEW.KEKA.HZ.A.0001.201026T0700Z-201026T1600Z/
Southern Trinity-
1145 AM PDT Sat Oct 24 2020

...FREEZE WARNING IN EFFECT FROM 4 AM TO 8 AM PDT SUNDAY...
...WIND ADVISORY IN EFFECT FROM 5 PM SUNDAY TO 11 AM PDT MONDAY
ABOVE 2500 FEET...
...HARD FREEZE WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH 
MONDAY MORNING...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low
  as 30 expected. For the Wind Advisory, northeast winds 25 to 35
  mph with gusts up to 60 mph expected over the ridges. Northeast
  winds 10 to 20 mph in the valleys. For the Hard Freeze Watch,
  sub-freezing temperatures as low as 25 possible.

* WHERE...Southern Trinity County.

* WHEN...For the Freeze Warning, from 4 AM to 8 AM PDT Sunday. 
  For the Wind Advisory, from 5 PM Sunday to 11 AM PDT Monday. 
  For the Hard Freeze Watch, from late Sunday night through 
  Monday 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.


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.

&&

$$

CAZ114-250415-
/O.CAN.KEKA.FZ.A.0006.201026T0700Z-201026T1600Z/
/O.UPG.KEKA.HW.A.0002.201026T0000Z-201026T1800Z/
/O.NEW.KEKA.WI.Y.0004.201026T0000Z-201026T1800Z/
/O.NEW.KEKA.FR.Y.0029.201025T1100Z-201025T1500Z/
Northern Lake County-
1145 AM PDT Sat Oct 24 2020

...FROST ADVISORY IN EFFECT FROM 4 AM TO 8 AM PDT SUNDAY...
...WIND ADVISORY IN EFFECT FROM 5 PM SUNDAY TO 11 AM PDT MONDAY
ABOVE 1500 FEET...

* WHAT...For the Frost Advisory, temperatures as low as 36 will
  result in frost formation. For the Wind Advisory, northeast
  winds 25 to 35 mph with gusts up to 60 mph expected over the
  ridges. 

* WHERE...Northern Lake County County.

* WHEN...For the Frost Advisory, from 4 AM to 8 AM PDT Sunday. 
  For the Wind Advisory, from 5 PM Sunday to 11 AM PDT Monday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result. Frost could kill sensitive outdoor vegetation if left 
  uncovered.


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.

&&

$$

CAZ107-250415-
/O.CAN.KEKA.FZ.A.0006.201026T0700Z-201026T1600Z/
/O.NEW.KEKA.FZ.W.0013.201025T1100Z-201025T1500Z/
/O.NEW.KEKA.HZ.A.0001.201026T0700Z-201026T1600Z/
Northern Trinity-
1145 AM PDT Sat Oct 24 2020

...FREEZE WARNING IN EFFECT FROM 4 AM TO 8 AM PDT SUNDAY...
...HARD FREEZE WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH
MONDAY MORNING...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low
  as 30 expected. For the Hard Freeze Watch, sub-freezing 
  temperatures as low as 22 possible.

* WHERE...Northern Trinity County.

* WHEN...For the Freeze Warning, from 4 AM to 8 AM PDT Sunday. 
  For the Hard Freeze Watch, from late Sunday night through 
  Monday morning.

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


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.

&&

$$

CAZ110-111-250415-
/O.UPG.KEKA.HW.A.0002.201026T0000Z-201026T1800Z/
/O.NEW.KEKA.WI.Y.0004.201026T0000Z-201026T1800Z/
/O.NEW.KEKA.FR.Y.0029.201025T1100Z-201025T1500Z/
/O.CON.KEKA.FZ.A.0006.201026T0700Z-201026T1600Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
1145 AM PDT Sat Oct 24 2020

...FROST ADVISORY IN EFFECT FROM 4 AM TO 8 AM PDT SUNDAY...
...WIND ADVISORY IN EFFECT FROM 5 PM SUNDAY TO 11 AM PDT MONDAY
ABOVE 2500 FEET...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE SUNDAY NIGHT THROUGH 
MONDAY MORNING...

* WHAT...For the Frost Advisory, temperatures as low as 36 will
  result in frost formation. For the Wind Advisory, northeast
  winds 25 to 35 mph with gusts up to 60 mph expected over the
  ridges. Northeast winds 10 to 25 mph in the valleys. For the
  Freeze Watch, sub-freezing temperatures as low as 27 possible.

* WHERE...Northwestern Mendocino Interior and Northeastern 
  Mendocino Interior Counties.

* WHEN...For the Frost Advisory, from 4 AM to 8 AM PDT Sunday. 
  For the Wind Advisory, from 5 PM Sunday to 11 AM PDT Monday. 
  For the Freeze Watch, from late Sunday night through Monday 
  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.

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.

&&

$$

CAZ106-250415-
/O.UPG.KEKA.HW.A.0002.201026T0000Z-201026T1800Z/
/O.NEW.KEKA.WI.Y.0004.201026T0000Z-201026T1800Z/
/O.CON.KEKA.FZ.A.0006.201026T0700Z-201026T1600Z/
Southern Humboldt Interior-
1145 AM PDT Sat Oct 24 2020

...WIND ADVISORY IN EFFECT FROM 5 PM SUNDAY TO 11 AM PDT MONDAY
ABOVE 2500 FEET...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE SUNDAY NIGHT THROUGH 
MONDAY MORNING...

* WHAT...For the Wind Advisory, northeast winds 25 to 35 mph with
  gusts up to 60 mph expected over the ridges. Northeast winds 15
  to 25 mph in the valleys. For the Freeze Watch, sub- freezing 
  temperatures as low as 32 possible.

* WHERE...Southern Humboldt Interior County.

* WHEN...For the Wind Advisory, from 5 PM Sunday to 11 AM PDT 
  Monday. For the Freeze Watch, from late Sunday night through 
  Monday 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.

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.

&&

$$

CAZ113-115-250415-
/O.UPG.KEKA.HW.A.0002.201026T0000Z-201026T1800Z/
/O.NEW.KEKA.WI.Y.0004.201026T0000Z-201026T1800Z/
Southeastern Mendocino Interior-Southern Lake County-
1145 AM PDT Sat Oct 24 2020

...WIND ADVISORY IN EFFECT FROM 5 PM SUNDAY TO 11 AM PDT MONDAY
ABOVE 1500 FEET...

* WHAT...Northeast winds 25 to 35 mph with gusts up to 60 mph 
  expected over the ridges. Northwest winds 15 to 30 mph in the 
  valleys. 

* WHERE...Southeastern Mendocino Interior and Southern Lake 
  County Counties.

* WHEN...From 5 PM Sunday to 11 AM PDT Monday.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ105-250415-
/O.CON.KEKA.FZ.A.0006.201026T0700Z-201026T1600Z/
Northern Humboldt Interior-
1145 AM PDT Sat Oct 24 2020

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

* WHAT...Sub-freezing temperatures as low as 29 possible.

* WHERE...Northern Humboldt Interior County.

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

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

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.

&&

$$

The office that day

Everything else NWS Eureka, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 22, 8:55 PM PDTHazardous Seas WarningEKA6 hr
Oct 23, 2:43 AM PDTGale WatchEKA12 hr
Oct 23, 10:50 AM PDTSmall Craft AdvisoryEKA28 hr
Oct 23, 12:08 PM PDTFrost AdvisoryEKAMendocino, Trinity20 hr
Oct 23, 12:08 PM PDTRed Flag WarningEKA4 days
Oct 23, 2:54 PM PDTGale WarningEKA54 hr

Nearby

High Wind Watches in California, 2020Every high wind watch in 2020

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.