California Redwood Coast-Humboldt County Airport

KACV / ACV

Arcata/Eureka, US

Last Updated
Apr 30, 04:53Z

Current Weather

Display Units
Recent 37 min ago
04:53Z

☀️ Day
VFR
Flight Rules
9°C
Temperature
Dewpoint: 8°C
3 kt
360°
10 SM
Visibility
Ceiling
Unlimited
1020 hPa
QNH
Altimeter Setting

Raw METAR

METAR KACV 300453Z AUTO 36003KT 10SM CLR 09/08 A3013 RMK AO2 SLP208 T00940078

Weather Briefing

VFR

California Redwood Coast-Humboldt County Airport is currently reporting visual flight rules (VFR) conditions with clear skies and 10 SM visibility.

Wind Analysis

Winds are from the north (360°) at 3 knots.

Visibility & Ceiling

Visibility is 10 SM. Skies are clear with unlimited ceiling.

Temperature & Moisture

Temperature is 9°C (48°F) with a dewpoint of 8°C. The temperature-dewpoint spread is very narrow, indicating saturated or near-saturated air. Fog formation or low cloud development is likely.

Forecast Outlook

The TAF forecast covers the next 24 hours. The forecast shows a transition between VFR and IFR conditions. Pilots should monitor the forecast closely and have an alternate airport plan. Expected weather includes: Mist.

Pilot Recommendations

Conditions are favorable for visual flight. The narrow temperature-dewpoint spread creates risk of fog formation, particularly during evening and early morning hours. The forecast indicates conditions may deteriorate. Ensure you have fuel reserves and a viable alternate airport.

This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.

QNH
1020 hPa
Sea Level Pressure
For altitude above MSL
QFE
1013 hPa
Field Pressure
Height above aerodrome (221 ft)
Pressure Alt
19 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: -648 ft
ISA Deviation: -5.6°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF KACV 292338Z 3000/3024 32012KT P6SM SKC FM300300 34006KT P6SM SKC FM300600 14005KT P6SM FEW015 FM300800 13005KT P6SM SCT007 OVC015 FM301300 00000KT 3SM BR BKN007 OVC015 FM301900 31008KT P6SM FEW007 BKN015
Upcoming Changes (Next 12 Hours)
05:29Z BASE
+0h
VFR 320° 12 kt
Visibility: >6SM
06:00Z FM300600
+1h
VFR 140° 5 kt
Visibility: >6SM
08:00Z FM300800
+3h
MVFR 130° 5 kt
Visibility: >6SM
Ceiling: 1,500 ft
13:00Z FM301300
+8h
IFR
Visibility: 3SM
Ceiling: 700 ft
Mist

24-Hour Weather Evolution

Loading weather data...
Data Sources
  • • Current conditions from METAR observations
  • • Historical data from past 24 hours
  • • No forecast or predicted data included
  • • Data updated with each new METAR report
Chart Features
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Note: Future values beyond current TAF validity are estimates based on climatological data and trends. Always verify with current forecasts before flight operations.

Airport Runway Layout

N
ACV
01
19
14
32 ✈️

Runway Information

Runway Length Width Surface Heading Wind Component
01/19 4,499 ft 150 ft ASP 29°
2.6 kt 1.5 kt
29° angle
✈️ 14/32
Active: 32
6,000 ft 150 ft ASP 152°
2.3 kt 1.9 kt
40° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KACV

8,287 observations | Sep 2025 - Apr 2026

Flight Rules Distribution

VFR
55.7%
MVFR
22%
IFR
10.3%
LIFR
12%

California Redwood Coast-Humboldt County Airport is frequently affected by reduced visibility conditions, with VFR weather only 55.7% of the time and IFR/LIFR conditions occurring in 22.3% of observations. Prevailing winds are from the E averaging 5.9 knots. Calm conditions occur 28.2% of the time. Temperatures typically range between 0°C and 24°C with an average of 10.7°C. Low visibility conditions (below 3 SM) occur in 5.2% of weather observations. The best months for VFR flying are January, February, April.

Wind Analysis

Prevailing Direction: E (90°)
Average Speed: 5.9 kt
Maximum Recorded: 24 kt
Calm Winds: 28.2%
Direction Distribution:
N
6.1%
NE
3.9%
E
18.8%
SE
10.2%
S
7.2%
SW
3.9%
W
7.4%
NW
14.4%

Temperature Range

Average: 10.7°C
Range: 0°C to 24°C
0°C 24°C

Visibility

Average: 8.2 SM
Below 3 SM: 5.2%
Fog Frequency: 8.6%

Best Months for VFR

January February April

Runway Wind Analysis

Runway 01/19
Favorable wind: 100%
Avg crosswind: 4.1 kt
Runway 14/32
Favorable wind: 100%
Avg crosswind: 2.8 kt

Statistics computed from 8,287 METAR observations (Sep 2025 - Apr 2026). Data sourced from official aviation weather services. Updated daily.

California Redwood Coast-Humboldt County Airport - Airport Information

Airport Details

ICAO Code: KACV
IATA Code: ACV
Type: medium airport
Status: active
Elevation: 221 ft MSL

Location

City: Arcata/Eureka
Country: US
Latitude: 40.978101°
Longitude: -124.109000°
Time Zone: Etc/GMT+8

Runway Information

Runway 01/19
Length: 4,499 ft
Width: 150 ft
Surface: ASP
ILS: No
Runway 14/32
Length: 6,000 ft
Width: 150 ft
Surface: ASP
ILS: No

About California Redwood Coast-Humboldt County Airport

Overview

California Redwood Coast-Humboldt County Airport serves the Arcata/Eureka region in northern California, providing crucial aviation access to a rural coastal area. As a medium-sized airport with two paved runways, it supports general aviation, regional transportation, and potential emergency services in Humboldt County.

Flying Conditions

The airport experiences highly variable weather conditions, with VFR prevailing 52.9% of the time, but significant periods of marginal and instrument flight rules. Coastal influences create consistent easterly winds averaging 5.7 knots, with calm conditions occurring 30% of the time. Temperature ranges from 1°C to 24°C, with an average of 11.1°C, presenting moderate climate stability for operations.

Notable Features

Located at 221 feet mean sea level, the airport sits in a coastal terrain environment characterized by proximity to the Pacific Ocean and surrounding forested regions. Both runways (01/19 at 4,499 ft and 14/32 at 6,000 ft) are asphalted, providing flexibility for different aircraft types and operational requirements. Visibility averages 7.9 statute miles, with occasional fog and reduced visibility periods.

Approach Considerations

Both runways demonstrate excellent wind alignment, with 100% favorable wind conditions and minimal average crosswinds (3.9 knots for 01/19, 2.9 knots for 14/32). Pilots should anticipate potential fog and reduced visibility, particularly during months with lower VFR percentages. January, October, and November offer statistically the most consistent visual flying conditions.

Data Sources & Accuracy: Airport information sourced from OurAirports.com, a collaborative database of worldwide airport data. Weather data from official aviation weather services including NOAA Aviation Weather Center and international METAR/TAF providers. Information is updated regularly but pilots should always verify current conditions and NOTAMs through official channels before flight operations.

Official Data Sources

Weather NOAA Aviation Weather Center • International METAR/TAF Network
Airports OurAirports.com • Public domain airport database
NOTAMs FAA NOTAM System • ICAO NOTAM Distribution
Last updated: Jan 1, 1970 12:00 AM UTC

Disclaimer: Data is provided for informational purposes only. Pilots must verify all information through official sources before flight operations. Weather conditions change rapidly; always obtain a current briefing from approved weather services.