KAPC/APC METAR & TAF Napa County Airport

Napa, CaliforniaElevation 35 ftSmall airport

CURRENT STATUS

VFR17 min old

No ceiling, visibility 10 SM.

FLIGHT CATEGORY

VFR

ceiling & visibility

WIND

220@4

steady

VISIBILITY

10 SM

16.1 km

CEILING

None

no BKN/OVC layer

DENSITY ALT

-463 ft

-498 ft vs field

ACTIVE NWS ALERTS

Active weather alerts

Coastal Flood AdvisoryMinor · Expected · Likely

27 0359Z to 31 0000Z

San Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast

* WHAT...Up to 2.1 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways. * WHERE...Bay Shoreline locations of San Pablo Bay, San Francisco Bay, and Monterey Bay. * WHEN...Until 5 PM PDT Friday. * IMPACTS...High tides will result in flooding of low-lying infrastructure, isolated road closures, and coastal erosion. Rising tides will bring water an…

If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

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

CURRENT METAR

Decoded observation

Observed 0554Z (10:54 PM local) · 17 min old

KAPC is currently VFR. Winds are from the southwest at 4 knots. Visibility is 10 statute miles. There is no ceiling.

WIND

220° at 4 kt

Steady.

VISIBILITY

10 statute miles

16.1 km, good.

CEILING & SKY

CLR

FEW and SCT layers are not ceilings.

TEMP / DEWPOINT

12°C / 10°C

54°F / 50°F. 2°C spread.

ALTIMETER

30.07 inHg

1018.3 hPa, above standard.

WEATHER & HAZARDS

No significant hazards

No precipitation or obscuration reported.

Codes in this report: AUTO 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)

SLP173

sea-level pressure 1017.3 hPa

T01170100

precise temperature 11.7°C, dew point 10.0°C

10189

6-hour maximum temperature 18.9°C

20111

6-hour minimum temperature 11.1°C

53002

3-hour pressure tendency: rising quickly (0.2 hPa change)

TERMINAL AERODROME FORECAST

TAF timeline

Issued 0520Z (10:20 PM local) · valid to 0600Z (11:00 PM local)

KAPC forecast starts VFR at 06Z. Conditions are roughly steady over the period.

VFR

0600Z11:00 PM1048Z3:48 AM1536Z8:36 AM2024Z1:24 PM0112Z6:12 PM0600Z11:00 PM

Codes in this report: P6SM SKC

Tap any group to decode it.

FAA: no delays reported at APC.

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

SUGGESTED RISK · TRAINING USE

Suggested risk level: Low

›No significant weather concerns in the current report.

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 VFR, wind from 220° at 4 kt, visibility 10 SM, ceiling none. Forecast suggests tonight mostly clear then patchy fog, low near 43F, 0% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

Day	Conditions	Temp F	Wind	Gusts	Precip
Tonight	Mostly Clear then Patchy Fog	43	W 3 kt	–	0%
Tuesday	Patchy Fog then Sunny	66/42	WSW 5 kt	–	0%
Wednesday	Areas Of Fog then Sunny	68/43	W 4 kt	–	0%
Thursday	Areas Of Fog then Partly Sunny	65/42	S 4 kt	–	0%
Friday	Patchy Fog then Mostly Sunny	62/41	W 8 kt	–	7%
Saturday	Slight Chance Light Rain	61/41	W 5 kt	–	19%
Sunday	Patchy Fog then Sunny	63/42	NW 4 kt	–	5%
Monday	Mostly Sunny then Slight Chance Light Rain	63	NE 3 kt	–	23%

Source: National Weather Service (office MTR). Forecast issued 0611Z.

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

3 runways · crosswind ranking

ON-FIELD METAR

READING THE BARB · SWIPE FOR MORE →

Calm

5 kt

10 kt

15 kt

20 kt

25 kt

30 kt

35 kt

40 kt

45 kt

50 kt

65 kt

75 kt

100 kt

105 kt

Half feather = 5 kt, full = 10 kt, filled pennant = 50 kt; add them up. The staff points the direction the wind blows from.

WIND USED

220° at 4 kt

Components computed from the current on-field METAR wind.

RECOMMENDED

RWY 19R4 kt headwind · 1 kt crosswind

RUNWAYS BY WIND · best end

19R

HEAD

4 kt

CROSS

1 kt R

BEST

19L

HEAD

4 kt

CROSS

1 kt R

HEAD

3 kt

CROSS

2 kt L

HEAD

3 kt tail

CROSS

2 kt R

01L

HEAD

4 kt tail

CROSS

1 kt L

01R

HEAD

4 kt tail

CROSS

1 kt L

Components are estimates from the current METAR wind and runway heading. Verify with the Chart Supplement and NOTAMs.

RUNWAYS

Runway detail & declared distances

3 runways · longest 5,930 ft

01L/19R

Dimensions

5,930 x 150 ft

Surface

Asphalt (good)

Edge lights

MED

RWY 01L21°T

ILSILS/DME

Approach lightsMALS

Traffic patternLeft

RWY 19R201°T

VGSIPAPI (P4L)

Traffic patternRight

01R/19L

Dimensions

2,510 x 75 ft

Surface

Asphalt (good)

RWY 01R21°T

Traffic patternRight

RWY 19L201°T

Traffic patternLeft

06/24

Dimensions

5,008 x 150 ft

Surface

Concrete (good)

Edge lights

MED

RWY 0677°T

REILYes

Traffic patternLeft

RWY 24257°T

Traffic patternLeft

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

-463 ft

Pressure altitude

-115 ft

Field elevation

35 ft MSL

Temperature

12°C (54°F)

Dewpoint

10°C (50°F)

Altimeter

30.07 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

0116Z 6:16 PM

Sunrise

1429Z 7:29 AM

Loggable night

0143Z (6:43 PM local) → 1402Z (7:02 AM local)

end of evening to start of morning civil twilight

Position lights required

0116Z (6:16 PM local) → 1429Z (7:29 AM local)

sunset to sunrise (91.209)

Night passenger currency

0216Z (7:16 PM local) → 1329Z (6:29 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

Napa County Airport is in Napa, California. Field elevation 35 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT

OwnershipPublicly owned

UseOpen to the public

TypeSmall airport

ManagerMARK WITSOE

Manager phone707-253-4300

AttendedDaily, 0700–2000

CHARTS & AIRSPACE

ICAO / IATAKAPC / APC

SectionalSAN FRANCISCO

Center (ARTCC)OAKLAND

Flight service (AFSS)OAKLAND

RegionCalifornia

CountryUnited States

Coordinates38.2132, -122.2810

Distance from city5 NM S

SERVICES & LIGHTING

Fuel100LL · Jet A

Control towerTowered

Field lightingSee remarks

BeaconSunset to sunrise · White-green (lighted land airport)

CTAF118.700

UNICOM122.950

FREQUENCIES

Communications

127.8

NORCAL APP/DEP

A/D

124.05

ATIS

118.7

CTAF

121.7

GND

118.7

TWR

122.95

UNICOM

UNIC

122.950

UNICOM

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

AIRCRAFT ACTIVITY

KAPC traffic patterns

2026-06-12 to 2026-10-25, 71 days observed · data 2026-10-25

High confidence

TRAFFIC VOLUME (30-DAY)

AVG LANDINGS/DAY

54.7

AVG OPS/DAY

88.9

Operations trend (18 days)

Busiest day: Tue · Busiest month: Oct

FLEET MIX

Piston single 44%Unknown 35%Jet 11%Helicopter 4%Turboprop 3%Airliner 2%Twin 1%

Mostly small piston aircraft.

TOP AIRCRAFT TYPES

›C172 (Piston single) · ~325 landings/mo

›UNKN (Unknown) · ~141 landings/mo

›CL35 (Jet) · ~15 landings/mo

›AS50 (Helicopter) · ~15 landings/mo

›C25B (Jet) · ~14 landings/mo

LIKELY BASED AIRCRAFT

Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly single-engine piston aircraft.

›C172 (Piston single)

›C82R (Unknown)

›AS50 (Helicopter)

›UNKN (Unknown)

›P28A (Piston single)

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.

KDVO Marin County Airport - Gnoss Field

14 NM W

VFR

KSUU Travis Air Force Base

17 NM E

VFR

KCCR Buchanan Field

17 NM SE

VFR

KOAK Oakland San Francisco Bay Airport

30 NM S

VFR

KSTS Charles M. Schulz Sonoma County Airport

31 NM NW

VFR

KHWD Hayward Executive Airport

34 NM S

VFR

AIRPORT REMARKS

Operational remarks

›UNLGTD BRIDGE 1 NM S, 167 FT AGL

›ASPH APRONS STRENGTH 12500-30000 LBS GWT SINGLE WHEEL.

›FOR FUEL SVC 2100-0600 CALL 707-224-0887.

›WHEN ATCT CLSD ACTVT MALS RWY 01L; REIL RWY 06; MIRL RWYS 01L/19R & RWY 06/24 - CTAF. PAPI RWY 19R OPR CONSLY.

›LDG FEE CHRGD TO ALL AIR TAXI, COML ACFT OPNS (EXCLDG FLT INSTRUCTION), AND TSNT ACFT WEIGHING MORE THAN 12500 LBS.

›FOR CD WHEN ATCT CLSD CTC OAKLAND ARTCC AT 510-745-3380.

›DUE TO AIRPORT PROXIMITY TO WETLANDS BIRDS ON AND INVOF THE AIRPORT YEAR AROUND WITH HIGHEST CONCENTRATION OF ACTIVITY OF BIRDS ON THE RYS DURING RAINY WEATHER.

›ASPH TWYS STRENGTH 30,000 GWT SINGLE WHEEL.

OFFICIAL LINKS & SOURCES

↗Official METAR on AviationWeather.gov

↗Search NOTAMs (official FAA NOTAM Search)

↗Official airport website

↗Wikipedia

↗KAPC on OurAirports

FREQUENTLY ASKED

Does KAPC have a METAR?

Yes. KAPC has a current METAR observation, decoded into plain English on this page.

Does KAPC have a TAF?

Yes, a TAF is issued for KAPC; the decoded forecast timeline is shown above.

What is the field elevation at KAPC?

KAPC sits at 35 ft MSL, which factors into the density-altitude estimate on this page.

Is this an official preflight weather briefing for KAPC?

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.