Alert archive / California / High Surf Advisories in 2026
High Surf Advisory 1, NWS Eureka, CA
NWS Eureka, CA issued this high surf advisory at Jan 6, 2026, 2:21 PM PST for Del Norte County, Humboldt County, Mendocino County, California. It took effect at Jan 7, 2026, 6:00 PM PST. It was in force for 28 hr.
The area
The counties it named.
The facts
- Issued
- Jan 6, 2026, 2:21 PM PST (22:21 UTC)
- In effect from
- Jan 7, 2026, 6:00 PM PST
- Expired
- Jan 8, 2026, 10:00 PM PST
- In force
- 28 hr
- Issued by
- NWS Eureka, CA
Counties Del Norte County, CA, Humboldt County, CA, Mendocino County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 47 km from the middle of the area, began a volume at 22:26 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, 10.4 hours before the alert went out and 349 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.
- Mixed-layer CAPE
- 2 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 756 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 127 m²/s²
- 0-3 km storm-relative helicity
- 133 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
008 WHUS46 KEKA 062221 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 221 PM PST Tue Jan 6 2026 CAZ101-103-104-070630- /O.NEW.KEKA.SU.Y.0001.260108T0300Z-260109T0000Z/ /O.CON.KEKA.BH.S.0001.260107T1300Z-260108T0200Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- 221 PM PST Tue Jan 6 2026 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY AFTERNOON... ...HIGH SURF ADVISORY IN EFFECT FROM 7 PM WEDNESDAY TO 4 PM PST THURSDAY... * WHAT...For the High Surf Advisory, large breaking waves up to 22 to 25 feet. For the Beach Hazards Statement, increased threat of sneaker waves expected before the arrival of this very large swell. * WHERE...Coastal Del Norte, Northern Humboldt Coast and Southwestern Humboldt Counties. * WHEN...For the High Surf Advisory, from 7 PM Wednesday to 4 PM PST Thursday. For the Beach Hazards Statement, from late tonight through Wednesday afternoon. . * IMPACTS...Dangerous surf conditions and localized beach erosion. Beachcombing is highly discouraged! Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These sneaker waves can also move large objects such as logs, crushing anyone caught underneath. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking waves along the coast will lead to increased wave run-up on beaches with waves topping and washing over large rocks and jetties. These large waves can be erratic and unpredictable. Use extra caution near the surf zone as these large waves will be capable of sweeping people into the frigid and turbulent ocean water. Mariners traversing the bar are urged to exercise extreme caution or stay in port until the threat subsides. Please contact the U.S. Coast Guard for information regarding harbor and bar closures. Don't be fooled by an ocean that looks calm. There can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean. && $$ CAZ109-070630- /O.NEW.KEKA.SU.Y.0001.260108T0300Z-260109T0000Z/ /O.CON.KEKA.BH.S.0001.260107T1700Z-260108T0200Z/ Mendocino Coast- 221 PM PST Tue Jan 6 2026 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON... ...HIGH SURF ADVISORY IN EFFECT FROM 7 PM WEDNESDAY TO 4 PM PST THURSDAY... * WHAT...For the High Surf Advisory, large breaking waves up to 22 to 25 feet. For the Beach Hazards Statement, increased threat of sneaker waves expected before the arrival of this very large swell. * WHERE...Mendocino Coast County. * WHEN...For the High Surf Advisory, from 7 PM Wednesday to 4 PM PST Thursday. For the Beach Hazards Statement, from Wednesday morning through Wednesday afternoon. . * IMPACTS...Dangerous surf conditions and localized beach erosion. Beachcombing is highly discouraged! Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These sneaker waves can also move large objects such as logs, crushing anyone caught underneath. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking waves along the coast will lead to increased wave run-up on beaches with waves topping and washing over large rocks and jetties. These large waves can be erratic and unpredictable. Use extra caution near the surf zone as these large waves will be capable of sweeping people into the frigid and turbulent ocean water. Mariners traversing the bar are urged to exercise extreme caution or stay in port until the threat subsides. Please contact the U.S. Coast Guard for information regarding harbor and bar closures. Don't be fooled by an ocean that looks calm. There can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean. && $$
8 follow-up statements
425 WHUS46 KEKA 070626 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 1026 PM PST Tue Jan 6 2026 CAZ101-103-104-071430- /O.CON.KEKA.SU.Y.0001.260108T0300Z-260109T0000Z/ /O.CON.KEKA.BH.S.0001.260107T1300Z-260108T0200Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- 1026 PM PST Tue Jan 6 2026 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 5 AM PST WEDNESDAY THROUGH WEDNESDAY AFTERNOON... ...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 7 PM WEDNESDAY TO 4 PM PST THURSDAY... * WHAT...For the High Surf Advisory, large breaking waves up to 22 to 25 feet. For the Beach Hazards Statement, increased threat of sneaker waves expected before the arrival of this very large swell. * WHERE...Coastal Del Norte, Northern Humboldt Coast and Southwestern Humboldt Counties. * WHEN...For the High Surf Advisory, from 7 PM Wednesday to 4 PM PST Thursday. For the Beach Hazards Statement, from late tonight through Wednesday afternoon. * IMPACTS...Dangerous surf conditions and localized beach erosion. Beachcombing is highly discouraged! Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These sneaker waves can also move large objects such as logs, crushing anyone caught underneath. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking waves along the coast will lead to increased wave run-up on beaches with waves topping and washing over large rocks and jetties. These large waves can be erratic and unpredictable. Use extra caution near the surf zone as these large waves will be capable of sweeping people into the frigid and turbulent ocean water. Mariners traversing the bar are urged to exercise extreme caution or stay in port until the threat subsides. Please contact the U.S. Coast Guard for information regarding harbor and bar closures. Don't be fooled by an ocean that looks calm. There can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean. && $$ CAZ109-071430- /O.CON.KEKA.SU.Y.0001.260108T0300Z-260109T0000Z/ /O.CON.KEKA.BH.S.0001.260107T1700Z-260108T0200Z/ Mendocino Coast- 1026 PM PST Tue Jan 6 2026 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 9 AM PST WEDNESDAY THROUGH WEDNESDAY AFTERNOON... ...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 7 PM WEDNESDAY TO 4 PM PST THURSDAY... * WHAT...For the High Surf Advisory, large breaking waves up to 22 to 25 feet. For the Beach Hazards Statement, increased threat of sneaker waves expected before the arrival of this very large swell. * WHERE...Mendocino Coast County. * WHEN...For the High Surf Advisory, from 7 PM Wednesday to 4 PM PST Thursday. For the Beach Hazards Statement, from Wednesday morning through Wednesday afternoon. * IMPACTS...Dangerous surf conditions and localized beach erosion. Beachcombing is highly discouraged! Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These sneaker waves can also move large objects such as logs, crushing anyone caught underneath. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking waves along the coast will lead to increased wave run-up on beaches with waves topping and washing over large rocks and jetties. These large waves can be erratic and unpredictable. Use extra caution near the surf zone as these large waves will be capable of sweeping people into the frigid and turbulent ocean water. Mariners traversing the bar are urged to exercise extreme caution or stay in port until the threat subsides. Please contact the U.S. Coast Guard for information regarding harbor and bar closures. Don't be fooled by an ocean that looks calm. There can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean. && $$
514 WHUS46 KEKA 071102 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 302 AM PST Wed Jan 7 2026 CAZ101-103-104-071915- /O.EXT.KEKA.SU.Y.0001.260108T0200Z-260109T0000Z/ /O.CON.KEKA.BH.S.0001.260107T1300Z-260108T0200Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- 302 AM PST Wed Jan 7 2026 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS AFTERNOON... ...HIGH SURF ADVISORY NOW IN EFFECT FROM 6 PM THIS EVENING TO 4 PM PST THURSDAY... * WHAT...For the High Surf Advisory, large breaking waves up to 22 to 25 feet. For the Beach Hazards Statement, increased threat of sneaker waves expected before the arrival of this very large swell. * WHERE...Coastal Del Norte, Northern Humboldt Coast and Southwestern Humboldt Counties. * WHEN...For the High Surf Advisory, from 6 PM this evening to 4 PM PST Thursday. For the Beach Hazards Statement, through this afternoon. . * IMPACTS...Dangerous surf conditions and localized beach erosion. Beachcombing is highly discouraged! Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These sneaker waves can also move large objects such as logs, crushing anyone caught underneath. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking waves along the coast will lead to increased wave run-up on beaches with waves topping and washing over large rocks and jetties. These large waves can be erratic and unpredictable. Use extra caution near the surf zone as these large waves will be capable of sweeping people into the frigid and turbulent ocean water. Mariners traversing the bar are urged to exercise extreme caution or stay in port until the threat subsides. Please contact the U.S. Coast Guard for information regarding harbor and bar closures. Don't be fooled by an ocean that looks calm. There can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean. && $$ CAZ109-071915- /O.EXT.KEKA.SU.Y.0001.260108T0200Z-260109T0000Z/ /O.CON.KEKA.BH.S.0001.260107T1700Z-260108T0200Z/ Mendocino Coast- 302 AM PST Wed Jan 7 2026 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 9 AM PST THIS MORNING THROUGH THIS AFTERNOON... ...HIGH SURF ADVISORY NOW IN EFFECT FROM 6 PM THIS EVENING TO 4 PM PST THURSDAY... * WHAT...For the High Surf Advisory, large breaking waves up to 22 to 25 feet. For the Beach Hazards Statement, increased threat of sneaker waves expected before the arrival of this very large swell. * WHERE...Mendocino Coast County. * WHEN...For the High Surf Advisory, from 6 PM this evening to 4 PM PST Thursday. For the Beach Hazards Statement, from 9 AM PST this morning through this afternoon. . * IMPACTS...Dangerous surf conditions and localized beach erosion. Beachcombing is highly discouraged! Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These sneaker waves can also move large objects such as logs, crushing anyone caught underneath. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking waves along the coast will lead to increased wave run-up on beaches with waves topping and washing over large rocks and jetties. These large waves can be erratic and unpredictable. Use extra caution near the surf zone as these large waves will be capable of sweeping people into the frigid and turbulent ocean water. Mariners traversing the bar are urged to exercise extreme caution or stay in port until the threat subsides. Please contact the U.S. Coast Guard for information regarding harbor and bar closures. Don't be fooled by an ocean that looks calm. There can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean. && $$
438 WHUS46 KEKA 071900 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 1100 AM PST Wed Jan 7 2026 CAZ101-103-104-080300- /O.CON.KEKA.SU.Y.0001.260108T0200Z-260109T0000Z/ /O.CON.KEKA.BH.S.0001.000000T0000Z-260108T0200Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- 1100 AM PST Wed Jan 7 2026 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 6 PM PST THIS EVENING... ...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 4 PM PST THURSDAY... * WHAT...For the High Surf Advisory, large breaking waves up to 22 to 25 feet. For the Beach Hazards Statement, increased threat of sneaker waves expected before the arrival of this very large swell. * WHERE...Coastal Del Norte, Northern Humboldt Coast and Southwestern Humboldt Counties. * WHEN...For the High Surf Advisory, from 6 PM this evening to 4 PM PST Thursday. For the Beach Hazards Statement, through this afternoon. . * IMPACTS...Dangerous surf conditions and localized beach erosion. Beachcombing is highly discouraged! Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These sneaker waves can also move large objects such as logs, crushing anyone caught underneath. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking waves along the coast will lead to increased wave run-up on beaches with waves topping and washing over large rocks and jetties. These large waves can be erratic and unpredictable. Use extra caution near the surf zone as these large waves will be capable of sweeping people into the frigid and turbulent ocean water. Mariners traversing the bar are urged to exercise extreme caution or stay in port until the threat subsides. Please contact the U.S. Coast Guard for information regarding harbor and bar closures. Don't be fooled by an ocean that looks calm. There can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean. && $$ CAZ109-080300- /O.CON.KEKA.SU.Y.0001.260108T0200Z-260109T0000Z/ /O.CON.KEKA.BH.S.0001.000000T0000Z-260108T0200Z/ Mendocino Coast- 1100 AM PST Wed Jan 7 2026 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 6 PM PST THIS EVENING... ...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 4 PM PST THURSDAY... * WHAT...For the High Surf Advisory, large breaking waves up to 22 to 25 feet. For the Beach Hazards Statement, increased threat of sneaker waves expected before the arrival of this very large swell. * WHERE...Mendocino Coast County. * WHEN...For the High Surf Advisory, from 6 PM this evening to 4 PM PST Thursday. For the Beach Hazards Statement, from 9 AM PST this morning through this afternoon. . * IMPACTS...Dangerous surf conditions and localized beach erosion. Beachcombing is highly discouraged! Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These sneaker waves can also move large objects such as logs, crushing anyone caught underneath. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking waves along the coast will lead to increased wave run-up on beaches with waves topping and washing over large rocks and jetties. These large waves can be erratic and unpredictable. Use extra caution near the surf zone as these large waves will be capable of sweeping people into the frigid and turbulent ocean water. Mariners traversing the bar are urged to exercise extreme caution or stay in port until the threat subsides. Please contact the U.S. Coast Guard for information regarding harbor and bar closures. Don't be fooled by an ocean that looks calm. There can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean. && $$
312 WHUS46 KEKA 080649 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 1049 PM PST Wed Jan 7 2026 CAZ101-103-104-109-081500- /O.CON.KEKA.SU.Y.0001.000000T0000Z-260109T0000Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 1049 PM PST Wed Jan 7 2026 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THURSDAY... * WHAT...Large breaking waves up to 22 to 25 feet. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and Mendocino Coast Counties. * WHEN...Until 4 PM PST Thursday. . * IMPACTS...Dangerous surf conditions and localized beach erosion. Beachcombing is highly discouraged!. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking waves along the coast will lead to increased wave run-up on beaches with waves topping and washing over large rocks and jetties. These large waves can be erratic and unpredictable. Use extra caution near the surf zone as these large waves will be capable of sweeping people into the frigid and turbulent ocean water. Mariners traversing the bar are urged to exercise extreme caution or stay in port until the threat subsides. Please contact the U.S. Coast Guard for information regarding harbor and bar closures. && $$
727 WHUS46 KEKA 081313 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 513 AM PST Thu Jan 8 2026 CAZ101-103-104-109-082115- /O.CON.KEKA.SU.Y.0001.000000T0000Z-260109T0000Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 513 AM PST Thu Jan 8 2026 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * WHAT...Large breaking waves up to 22 to 25 feet. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and Mendocino Coast Counties. * WHEN...Until 4 PM PST Thursday. . * IMPACTS...Dangerous surf conditions and localized beach erosion. Beachcombing is highly discouraged!. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking waves along the coast will lead to increased wave run-up on beaches with waves topping and washing over large rocks and jetties. These large waves can be erratic and unpredictable. Use extra caution near the surf zone as these large waves will be capable of sweeping people into the frigid and turbulent ocean water. Mariners traversing the bar are urged to exercise extreme caution or stay in port until the threat subsides. Please contact the U.S. Coast Guard for information regarding harbor and bar closures. && $$
634 WHUS46 KEKA 081741 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 941 AM PST Thu Jan 8 2026 CAZ101-103-104-109-090000- /O.CON.KEKA.SU.Y.0001.000000T0000Z-260109T0000Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 941 AM PST Thu Jan 8 2026 ...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * WHAT...Large breaking waves up to 22 to 25 feet. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and Mendocino Coast Counties. * WHEN...Until 4 PM PST Thursday. . * IMPACTS...Dangerous surf conditions and localized beach erosion. Beachcombing is highly discouraged!. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking waves along the coast will lead to increased wave run-up on beaches with waves topping and washing over large rocks and jetties. These large waves can be erratic and unpredictable. Use extra caution near the surf zone as these large waves will be capable of sweeping people into the frigid and turbulent ocean water. Mariners traversing the bar are urged to exercise extreme caution or stay in port until the threat subsides. Please contact the U.S. Coast Guard for information regarding harbor and bar closures. && $$
025 WHUS46 KEKA 082121 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 121 PM PST Thu Jan 8 2026 CAZ101-103-104-109-090600- /O.EXT.KEKA.SU.Y.0001.000000T0000Z-260109T0600Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 121 PM PST Thu Jan 8 2026 ...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Large breaking waves up to 22 to 25 feet. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and Mendocino Coast Counties. * WHEN...Until 10 PM PST this evening. * IMPACTS...Dangerous surf conditions and localized beach erosion. Beachcombing is highly discouraged!. PRECAUTIONARY/PREPAREDNESS ACTIONS... Large breaking waves along the coast will lead to increased wave run-up on beaches with waves topping and washing over large rocks and jetties. These large waves can be erratic and unpredictable. Use extra caution near the surf zone as these large waves will be capable of sweeping people into the frigid and turbulent ocean water. Mariners traversing the bar are urged to exercise extreme caution or stay in port until the threat subsides. Please contact the U.S. Coast Guard for information regarding harbor and bar closures. && $$
465 WHUS46 KEKA 090548 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 948 PM PST Thu Jan 8 2026 CAZ101-103-104-109-090700- /O.EXP.KEKA.SU.Y.0001.000000T0000Z-260109T0600Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 948 PM PST Thu Jan 8 2026 ...HIGH SURF ADVISORY WILL EXPIRE AT 10 PM PST THIS EVENING... $$
What forecasters said that day
The local office's own words before this high surf advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Eureka, CA wrote its last area forecast discussion before this high surf advisory went out at Jan 6, 2:17 PM PST, 4 minutes earlier.
Area forecast discussion, Jan 6, 2:17 PM PST, 4 minutes before
AREA FORECAST DISCUSSION
National Weather Service Eureka CA
217 PM PST Tue Jan 6 2026
.SYNOPSIS...Light rain and mountain snow return tonight through
Wednesday night. High pressure is expected to build in late this
week bringing dry conditions to Northwest California. Sneaker
waves are expected at the coast on Wednesday transitioning into
large surf on Thursday.
&&
.DISCUSSION...The heaviest rain has finally come to an end
allowing streams and rivers across the region to recede.
However, before we can completely dry out, another couple fronts
will bring light to moderate precipitation to primarily the
northern half of the forecast area tonight and then again on
Wednesday. Total precipitation from the two waves of precipitation
will likely range from a couple tenths of an inch to around three
quarters of an inch for coastal and valley locations of Humboldt,
Del Norte, and western Trinity counties with potentially over an
inch in the higher terrain. Snow levels will fall behind each
front, potentially to as low as 2500 feet in Del Norte county
before the snow comes to an end. Total snowfall in the higher
terrain will easily reach advisory criteria, but with very little
expected down to any highway passes, a winter weather advisory has
not been issued at this time. The main concern is highway 199
where light snow may reach the highway Wednesday night for a few
hours with up to an inch or two of snow possible. If trends point
to heavier snow at the tunnel then a winter weather advisory may
need to be introduced in future forecast packages.
In addition to the rain and mountain snow, northwesterly winds will
also ramp up behind the front. Wind gusts in excess of 20 mph will
be possible along the coast Wednesday afternoon and evening along
with many of the ridgetops across the entire region. Locally higher
gusts will be possible on the interior mountains, particularly in
Lake and eastern Trinity counties. Local gusts over 40 mph will be
possible in those areas in the wake of the frontal passage.
Dry conditions are expected beyond Wednesday for the next several
days. Overnight lows will be quite cold with lows in the 20s and 30s
across the region behind the cold front. The frost/freeze seasons
have concluded for all areas with the turn to the new year so no
frost headlines will be issued. However, overnight low temperatures
may approach 30F in portions of Lake and southern Mendocino counties
Thursday and particularly Friday mornings. The need for cold weather
advisories will have to be contemplated for those two mornings. A
warming trend will likely begin over the weekend. /RPA
&&
.AVIATION...(18Z TAFs)...VFR conditions prevail this afternoon with
light winds and elevated BKN-OVC ceilings. An approaching weather
system tonight will bring light rain and moderate southerly winds to
coastal terminals. A break in the rain is forecasted from about 16Z
until about 22Z tomorrow when more rainshowers are possible.
Ceilings are expected to remain in MVFR/VFR with only a 20%
probability of IFR for the North Coast. Inland, light winds remain
with lingering clouds. High resolution models show that some fog/low
cloud development is possible, yet a PROB30 has been issued for KUKI
as far due to forecast uncertainty.
&&
.MARINE...Weak high pressure will be briefly settling over the area
as the low pressure drifts southward. Winds will switch to 10 to 15
kt south to southwest over the northern waters while farther south,
the winds will turn more westerly. Northerly winds are expected to
return through the day on Wednesday as high pressure builds back
into the area. These are expected to peak around 15 to 25 Wednesday
night and Thursday morning.
The 11 second swell moving through the waters is gradually
diminishing and will continue to diminish through Wednesday. A
large, long period swell is expected to move into the waters
Wednesday and Thursday. Initially these waves may be around 3 to 4
feet at 23 seconds. These will build through the day and overnight
to around 17 to 19 feet at 18 seconds by Thursday morning. This is
about 2 feet over the wave watch 3 model and more in line with the
ECMWF wave model. Issued a hazardous seas watch to highlight the
potential for a swell over 17 feet.
The winds and seas are expected to diminish Friday, but the swell
may remain above 10 feet until Friday night. Calmer conditions are
expected on Saturday this coming weekend.
&&
.BEACH HAZARDS...Forecast confidence is growing that a large, long
period swell is expected to move into the waters Wednesday and
Thursday. The forerunners of this wave will start to build in
Wednesday around midday. Initially, these waves may be around 3 to 4
feet at 23 seconds before building to 5 to 8 feet by midday. There
will likely be set behavior with these long periods creating an
increased sneaker wave threat. There will be some background NW
swell and increasing northerly winds, but the sets may still be
distinct enough to catch some people off guard. After the front
runners of this wave group enter the coastal waters, the swell will
keep building overnight to around 17 to 19 feet at 18 seconds by
Thursday morning. Large breakers of 22 to 25 feet are expected for
west and northwest facing beaches. A high surf advisory has been
issued from 7 PM PST Wednesday until 4 PM PST on Thursday due to
these dangerous shoreline conditions.
&&
.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
Beach Hazards Statement from late tonight through Wednesday
afternoon for CAZ101-103-104.
High Surf Advisory from 7 PM Wednesday to 4 PM PST Thursday
for CAZ101-103-104-109.
Beach Hazards Statement from Wednesday morning through
Wednesday afternoon for CAZ109.
NORTHWEST CALIFORNIA COASTAL WATERS...
Hazardous Seas Warning from 7 PM Wednesday to 3 PM PST
Thursday for PZZ450-470.
Hazardous Seas Warning from 11 PM Wednesday to 3 PM PST
Thursday for PZZ455-475.
&&
NOTE: The full forecast discussion is now regularly issued between
10 am/pm and 1 pm/am. Additional updates will be issued as needed.
Visit us at https://www.weather.gov/eureka
Follow us on Facebook and Twitter at:
https://www.facebook.com/NWSEureka
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For forecast zone information
see the forecast zone map online:
https://www.weather.gov/images/eka/zonemap.pngIn the hours before
Local storm report, Jan 6, 9:00 AM PST, 5 hours 21 minutes before
Preliminary Local Storm Report
National Weather Service Eureka CA
900 AM PST Tue Jan 6 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1117 AM Tstm Wnd Dmg 1 WNW Shelter Cove 40.04N 124.07W
01/03/2026 Humboldt CA NWS Storm Survey
A one-foot diameter tree was uprooted and
fell into powerlines near Lariat Court in
Shelter Cove. The tree fell on a fence
nearly hitting an outbuilding.
&&
RPALocal storm report, Jan 6, 9:05 AM PST, 5 hours 16 minutes before
Preliminary Local Storm Report
National Weather Service Eureka CA
905 AM PST Tue Jan 6 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1123 AM Tstm Wnd Dmg 2 N Shelter Cove 40.06N 124.05W
01/03/2026 Humboldt CA NWS Storm Survey
Tree down on King Peak Road blocking a
quarter of the roadway.
&&
RPALocal storm report, Jan 6, 9:08 AM PST, 5 hours 13 minutes before
Preliminary Local Storm Report
National Weather Service Eureka CA
908 AM PST Tue Jan 6 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1130 AM Tstm Wnd Dmg 3 ENE Shelter Cove 40.05N 124.00W
01/03/2026 Humboldt CA NWS Storm Survey
Many branches and a couple small trees down
along Shelter Cove Road between Shelter Cove
and Briceland.
&&
RPALocal storm report, Jan 6, 9:21 AM PST, 5 hours before
Preliminary Local Storm Report
National Weather Service Eureka CA
921 AM PST Tue Jan 6 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1000 PM Flood 2 SSW Saratoga Springs 39.16N 122.99W
01/05/2026 Lake CA Dept of Highways
Scott Valley Road flooded and closed near
Highway 20. Was still flooded as of 8 am on
the 6th. Start time of 10 pm is a very rough
estimate.
&&
RPALocal storm report, Jan 6, 9:24 AM PST, 4 hours 57 minutes before
Preliminary Local Storm Report
National Weather Service Eureka CA
924 AM PST Tue Jan 6 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0215 PM Flood 3 WNW North Lakeport 39.09N 122.95W
01/05/2026 Lake CA Dept of Highways
Scotts Valley Road closed east of Hendricks
Road.
&&
RPALocal storm report, Jan 6, 9:30 AM PST, 4 hours 51 minutes before
Preliminary Local Storm Report
National Weather Service Eureka CA
930 AM PST Tue Jan 6 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1000 PM Flood 8 SSW Comptche 39.17N 123.68W
01/05/2026 Mendocino CA Dept of Highways
Highway 128 closed due to flooding from the
Navarro River. The river reached the
official flood stage at approximately 10 pm.
&&
RPAThe office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 5, 8:52 PM PST | Hazardous Seas Watch | EKA | 17 hr | |
| Jan 5, 9:02 PM PST | Beach Hazards Statement | EKA | Del Norte, Humboldt, Mendocino | 45 hr |
| Jan 6, 12:01 AM PST | Areal Flood Advisory | EKA | Lake | 7 hr |
| Jan 6, 2:15 PM PST | Hazardous Seas Warning | EKA | 56 hr |
Nearby
High Surf Advisories in California, 2026Every high surf advisory in 2026
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.