WxDecoder

KACV/ACV METAR & TAF California Redwood Coast-Humboldt County Airport

Arcata/Eureka, CaliforniaElevation 221 ftMedium airport
CURRENT STATUS
IFR17 min old
No ceiling, visibility 1 1/2 SM, mist.
FLIGHT CATEGORY
IFR
ceiling & visibility
WIND
Calm
no steady wind
VISIBILITY
1 1/2 SM
2.4 km
CEILING
None
no BKN/OVC layer
DENSITY ALT
-680 ft
-901 ft vs field
ACTIVE NWS ALERTS

Active weather alerts

Coastal Flood AdvisoryMinor · Expected · Likely
27 1900Z to 27 2200Z
Northern Coastal Humboldt
* WHAT...High astronomical tides will cause minor flooding in low lying areas around Humboldt Bay. Up to one half foot of saltwater inundation above ground level is possible near shorelines and tidal waterways. Between 9.0 and 9.2 feet MLLW at the North Spit tide gauge is predicted. * WHERE...Northern Coastal Humboldt County. * WHEN...From noon to 3 PM PDT Tuesday. High tide is at 12:34 PM at th…
A Coastal Flood Advisory indicates that onshore winds and tides will combine to generate flooding of low areas along the shore. Feet Above Ground is locally defined as feet above the Highest Astronomical Tide or HAT.

Alerts from the National Weather Service. For situational awareness only; always confirm against an official briefing.

CURRENT METAR

Decoded observation

Observed 0312Z (8:12 PM local) · 17 min old

KACV is currently IFR. Winds are calm. Visibility is 1 1/2 statute miles. There is no ceiling. Reported weather: mist. Main concerns: Visibility 1.5 SM.

WIND
Calm
No steady wind.
VISIBILITY
1 1/2 statute miles
2.4 km, low (IFR).
CEILING & SKY
CLR
FEW and SCT layers are not ceilings.
TEMP / DEWPOINT
9°C / 9°C
48°F / 48°F. 0°C spread.
ALTIMETER
30.16 inHg
1021.3 hPa, above standard.
WEATHER & HAZARDS
BR, LOW VIS
Mist reported.

Codes in this report: AUTO BR CLR RMK AO2

Hover or tap any group for a plain-English explanation.

REMARKS: DECODED
AO2
automated station with a precipitation discriminator (can tell rain from snow)
T00940094
precise temperature 9.4°C, dew point 9.4°C
TERMINAL AERODROME FORECAST

TAF timeline

Issued 2340Z (4:40 PM local) · valid to 0000Z (5:00 PM local)

KACV forecast starts VFR at 00Z. Worst period is 15Z to 18Z with MVFR possible. Best period is 00Z to 05Z (VFR). Conditions are roughly steady over the period.

OVC0606,000 ft
VFR
OVC0252,500 ft
BKN0252,500 ft
BKN0505,000 ft
VFR
0000Z5:00 PM0448Z9:48 PM0936Z2:36 AM1424Z7:24 AM1912Z12:12 PM0000Z5:00 PM

Codes in this report: P6SM SCT OVC BKN SKC

Tap any group to decode it.

FAA: no delays reported at ACV.

Source: FAA System Operations (ASWS). Operational status only; verify with official FAA sources and NOTAMs.

SUGGESTED RISK · TRAINING USE

Suggested risk level: High

›Conditions are IFR.
›Low visibility: 1.5 SM.
›Mist reported.

A suggested risk level for training and situational awareness only, not a go/no-go authority. Verify with official sources and apply your personal minimums.

FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

Current aviation conditions show flight category IFR, wind calm, visibility 1.5 SM, ceiling none. Forecast suggests tonight partly cloudy then chance rain showers, low near 46F, 31% chance of precipitation. Key risks: low visibility.

PILOT WEATHER NOTES
Low visibilityMETAR
Visibility 1.5 SM. Conditions may be unsuitable for VFR; review IFR options and alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Partly Cloudy then Chance Rain Showers 46 ENE 4 kt – 31%
Tuesday Chance Rain Showers 54/38 N 10 kt – 31%
Wednesday Mostly Sunny 54/38 N 8 kt – 1%
Thursday Partly Sunny 53/37 NNE 8 kt – 11%
Friday Mostly Sunny 52/36 NNE 5 kt – 10%
Saturday Slight Chance Light Rain 53/37 WSW 4 kt – 23%
Sunday Mostly Sunny 56/38 NNE 4 kt – 4%
Monday Partly Sunny then Chance Light Rain 58 SSE 3 kt – 27%

Source: National Weather Service (office EKA). Forecast issued 0329Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

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RUNWAYS & WIND
2 runways · crosswind ranking
NESW14320119CALMCALMCALMCALMCALM
WIND USED
Wind calm or variable
Crosswind ranking is unavailable until the wind has a steady direction.
Components are estimates from the current METAR wind and runway heading. Verify with the Chart Supplement and NOTAMs.
RUNWAYS

Runway detail & declared distances

2 runways · longest 6,046 ft

14/32
Dimensions
6,046 x 150 ft
Surface
Asphalt (good)
Edge lights
HIGH
RWY 14153°T
Landing length (LDA)5,601 ft
TORA / TODA / ASDA6,046 / 6,046 / 5,846 ft
Displaced threshold245 ft
REILYes
VGSIPAPI (P4L)
Traffic patternRight
RWY 32333°T
Landing length (LDA)5,846 ft
TORA / TODA / ASDA6,046 / 6,046 / 6,046 ft
Displaced threshold200 ft
ILSILS/DME
Approach lightsMALSR
VGSIPAPI (P4L)
Traffic patternLeft
01/19
Dimensions
4,501 x 150 ft
Surface
Asphalt (fair)
Edge lights
MED
RWY 0130°T
Landing length (LDA)4,501 ft
TORA / TODA / ASDA4,501 / 4,501 / 4,501 ft
REILYes
VGSIVASI (V4L)
Traffic patternLeft
RWY 19210°T
Landing length (LDA)4,501 ft
TORA / TODA / ASDA4,501 / 4,501 / 4,501 ft
Traffic patternRight

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

FIELD CONDITIONS

Performance & density altitude

Density altitude
-680 ft
Pressure altitude
-19 ft
Field elevation
221 ft MSL
Temperature
9°C (48°F)
Dewpoint
9°C (48°F)
Altimeter
30.16 inHg

Density altitude estimates how the aircraft performs versus standard atmosphere. Higher density altitude reduces climb performance and increases takeoff distance.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0120Z 6:20 PM
Sunrise
1441Z 7:41 AM
Loggable night
0148Z (6:48 PM local) → 1413Z (7:13 AM local)
end of evening to start of morning civil twilight
Position lights required
0120Z (6:20 PM local) → 1441Z (7:41 AM local)
sunset to sunrise (91.209)
Night passenger currency
0220Z (7:20 PM local) → 1341Z (6:41 AM local)
1 hr after sunset to 1 hr before sunrise (61.57(b))

FAA definitions, shown in Zulu with airport-local time. Verify for your operation.

AIRPORT INFORMATION

Facility & services

California Redwood Coast-Humboldt County Airport is in Arcata/Eureka, California. Field elevation 221 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPublicly owned
UseOpen to the public
TypeMedium airport
Airline serviceYes
ManagerJUSTIN HOPMAN
Manager phone707-382-2551
AttendedDaily, 0400–2359
CHARTS & AIRSPACE
ICAO / IATAKACV / ACV
SectionalKLAMATH FALLS
Center (ARTCC)SEATTLE
Flight service (AFSS)OAKLAND
RegionCalifornia
CountryUnited States
Coordinates40.9781, -124.1090
Distance from city7 NM N
SERVICES & LIGHTING
Fuel100LL · Jet A
Control towerNon-towered
Field lightingSee remarks
BeaconSunset to sunrise · White-green (lighted land airport)
CTAF123.000
UNICOM123.000
FREQUENCIES

Communications

118.525
ASOS
ASOS
124.85
SEATTLE CNTR
CNTR
34.5
COAST GUARD AIR OPS
OPS
122.6
OAKLAND RDO
RDO
123
CTAF/UNICOM
UNIC
123.000
CTAF
CTAF
123.000
UNICOM
UNICOM

Not all tower/ground/approach frequencies are in our datasets. Verify with the FAA Chart Supplement.

AIRCRAFT ACTIVITY

KACV traffic patterns

2026-06-16 to 2026-10-25, 38 days observed · data 2026-10-25

Medium confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
2.8
AVG OPS/DAY
3.6
Activity trend over 9 days: rising, from 1 to 5 operations per dayOperations trend (9 days)

Busiest day: Sat · Busiest month: Oct

FLEET MIX
Jet 27%Helicopter 20%Airliner 19%Turboprop 14%Piston single 12%Unknown 5%Twin 3%

Mostly jet aircraft.

TOP AIRCRAFT TYPES
›E75L (Jet) · ~5 landings/mo
›A320 (Airliner) · ~4 landings/mo
›AS65 (Helicopter) · ~2 landings/mo
›B407 (Helicopter) · ~2 landings/mo
›CRJ7 (Airliner) · ~2 landings/mo
LIKELY BASED AIRCRAFT
Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly rotorcraft.

›B407 (Helicopter)
›AS65 (Helicopter)

This is an estimate based on repeated flight patterns, not registration data. Do not rely on it to identify specific aircraft or owners.

Data limitations (4)
›ADS-B coverage is incomplete; counts are an observed lower bound, not official totals.
›Some aircraft do not transmit usable ADS-B and are not counted.
›Aircraft types and based estimates are inferred and may be wrong.
›This is not official ATC, FAA, or airport data.
NEARBY AIRPORTS

Weather reference stations

Current flight category at nearby reporting stations.

KCEC Jack Mc Namara Field Airport
48 NM N
VFR
KBOK Brookings Airport
66 NM N
VFR
KRDD Redding Municipal Airport
87 NM E
VFR
KSIY Siskiyou County Airport
88 NM NE
VFR
KRBL Red Bluff Municipal Airport
98 NM SE
VFR
KMFR Rogue Valley International-Medford Airport
100 NM NE
VFR
AIRPORT REMARKS

Operational remarks

›FOR CD IF UNA TO CTC ON FSS FREQ, CTC SEATTLE ARTCC AT 253-351-3694.
›RWY 01/19 NOT AVBL FOR PART 121/PART 380 OPS WITH SKED PAX CARRYING OPS MORE THAN 9 PAX SEATS AND NON-SKED PAX CARRYING OPS MORE THAN 30 PAX SEATS.
›EMAIL: JHOPMAN@CO.HUMBOLDT.CA.US
›PCR VALUE: 530/F/D/X/T
›FUEL AVBL 0400-2400 LOCAL, AND AFTER HOURS WITH ADVANCED NOTICE.
›ACTVT MALSR RWY 32; TDZL RWY 32; C/L LGTS RWY 14 & 32; REIL RWY 14; PAPI RWY 14 & 32; HIRL RWY 14/32 - CTAF. MIRL RWY 01/19, REIL RWY 01, AND VASI RWY 01 PPR CTC 707-382-2551 OR 707-496-0102.
›ENGINEERED MATERIAL ARRESTING SYSTEM (EMAS) 280 FT IN LEN BY 170 FT IN WID STARTING 70 FT BYD DER 32.
›PCR VALUE: 62/F/D/X/U
›LNDG FEE: CTC ARPT OR CHECK ARPT WEBSITE FOR DTLS, EXEMPTIONS.
OFFICIAL LINKS & SOURCES
↗Official METAR on AviationWeather.gov
↗Search NOTAMs (official FAA NOTAM Search)
↗Official airport website
↗Wikipedia
↗KACV on OurAirports
FREQUENTLY ASKED
Does KACV have a METAR?
Yes. KACV has a current METAR observation, decoded into plain English on this page.
Does KACV have a TAF?
Yes, a TAF is issued for KACV; the decoded forecast timeline is shown above.
What is the field elevation at KACV?
KACV sits at 221 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for KACV?
No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.
This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.