WxDecoder

K0S9/TWD METAR Jefferson County International Airport

Port Townsend, WashingtonElevation 108 ftSmall airport
CURRENT STATUS
VFR8 min old
Ceiling 5,500 ft, visibility 10 SM.
FLIGHT CATEGORY
VFR
ceiling & visibility
WIND
110@4
steady
VISIBILITY
10 SM
16.1 km
CEILING
5,500 ft
lowest BKN/OVC
DENSITY ALT
-481 ft
-589 ft vs field
CURRENT METAR

Decoded observation

Observed 0515Z (10:15 PM local) · 8 min old

K0S9 is currently VFR. Winds are from the east at 4 knots. Visibility is 10 statute miles. The ceiling is 5,500 feet AGL.

WIND
110° at 4 kt
Steady.
VISIBILITY
10 statute miles
16.1 km, good.
CEILING & SKY
Ceiling 5,500 ft
Lowest broken or overcast layer.
TEMP / DEWPOINT
10°C / 9°C
50°F / 48°F. 1°C spread.
ALTIMETER
29.94 inHg
1013.9 hPa, near standard.
WEATHER & HAZARDS
No significant hazards
No precipitation or obscuration reported.

Codes in this report: AUTO BKN OVC 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)
SUGGESTED RISK · TRAINING USE

Suggested risk level: Low

›No TAF available for this airport.

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 110° at 4 kt, visibility 10 SM, ceiling 5,500 ft. Forecast suggests tonight chance light rain, low near 43F, 27% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing. Note: the NWS forecast for now reads "Slight Chance Light Rain" but the current METAR shows none of it; the observation and forecast differ, so trust the METAR for current conditions.

DayConditionsTemp FWindGustsPrecipPilot note
Tonight Chance Light Rain 43 SE 5 kt – 27%
Monday Chance Light Rain 56/42 S 4 kt – 25%
Tuesday Light Rain 55/39 S 3 kt – 92%
Wednesday Light Rain 54/38 SSE 5 kt – 78%
Thursday Light Rain Likely 52/37 SE 9 kt – 57%
Friday Slight Chance Light Rain 52/37 NNW 6 kt – 17%
Saturday Mostly Sunny 53/38 NW 4 kt – 4%
Sunday Partly Sunny 54 S 6 kt – 9%

Note: the NWS forecast for now reads "Slight Chance Light Rain" but the current METAR shows none of it; the observation and forecast differ, so trust the METAR for current conditions.

Source: National Weather Service (office SEW). Forecast issued 0522Z.

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
1 runway · crosswind ranking
ON-FIELD METAR
NESW0927 110°110°4 kt110°110° 4110°
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
110° at 4 kt
Components computed from the current on-field METAR wind.
RECOMMENDED
RWY 094 kt headwind · no crosswind
RUNWAYS BY WIND · best end
09
HEAD
4 kt
CROSS
calm
BEST
27
HEAD
4 kt tail
CROSS
calm
OK
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 3,000 ft

H1
Dimensions
65 x 65 ft
Surface
Asphalt (fair)
RWY H1
09/27
Dimensions
3,000 x 75 ft
Surface
Asphalt (excellent)
Edge lights
MED
RWY 09104°T
REILYes
VGSIPAPI (P2L)
Traffic patternRight
RWY 27284°T
REILYes
VGSIPAPI (P2R)

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
-481 ft
Pressure altitude
88 ft
Field elevation
108 ft MSL
Temperature
10°C (50°F)
Dewpoint
9°C (48°F)
Altimeter
29.94 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
0104Z 6:04 PM
Sunrise
1446Z 7:46 AM
Loggable night
0136Z (6:36 PM local) → 1414Z (7:14 AM local)
end of evening to start of morning civil twilight
Position lights required
0104Z (6:04 PM local) → 1446Z (7:46 AM local)
sunset to sunrise (91.209)
Night passenger currency
0204Z (7:04 PM local) → 1346Z (6:46 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

Jefferson County International Airport is in Port Townsend, Washington. Field elevation 108 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPublicly owned
UseOpen to the public
TypeSmall airport
ManagerERON BERG, EXECUTIVE DIRECTOR
Manager phone360-385-0656
AttendedDaily, 0900–1800
CHARTS & AIRSPACE
ICAO / IATATWD
SectionalSEATTLE
Center (ARTCC)SEATTLE
Flight service (AFSS)SEATTLE
CustomsAirport of entry
RegionWashington
CountryUnited States
Coordinates48.0538, -122.8110
Distance from city6 NM SW
SERVICES & LIGHTING
Fuel100LL
Control towerNon-towered
Field lightingSee remarks
BeaconSunset to sunrise · White-green (lighted land airport)
Traffic pattern alt890 ft MSL
CTAF123.000
UNICOM123.000
FREQUENCIES

Communications

119.025
Phone: 360-379-1199
AWOS-3P
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

K0S9 traffic patterns

2026-06-12 to 2026-10-23, 68 days observed · data 2026-10-23

High confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
12.1
AVG OPS/DAY
20.6
Activity trend over 16 days: falling, from 14 to 13 operations per dayOperations trend (16 days)

Busiest day: Sun · Busiest month: Oct

FLEET MIX
Piston single 68%Unknown 23%Turboprop 4%Twin 3%Helicopter 2%

Mostly small piston aircraft.

TOP AIRCRAFT TYPES
›C172 (Piston single) · ~85 landings/mo
›UNKN (Unknown) · ~17 landings/mo
›C150 (Piston single) · ~9 landings/mo
›C152 (Piston single) · ~8 landings/mo
›C182 (Piston single) · ~7 landings/mo
LIKELY BASED AIRCRAFT
Low-confidence estimate

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

›C172 (Piston single)
›C150 (Piston single)
›UNKN (Unknown)
›M20P (Piston single)
›M7 (Unknown)

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.

KOKH AJ Eisenberg Airport
13 NM NE
VFR
KNUW Whidbey Island Naval Air Station (Ault Field)
19 NM N
VFR
KPAE Seattle Paine Field International Airport
23 NM E
VFR
KCLM William R Fairchild International Airport
28 NM W
MVFR
KFHR Friday Harbor Airport
29 NM N
VFR
KBVS Skagit Regional Airport
29 NM NE
VFR
AIRPORT REMARKS

Operational remarks

›RWY 09 ARE BAFFLED BYD 6.5 DEG LEFT OF RWY CNTRLN DUE TO TRRN.
›EMAIL: KRISTEN.LONG@TADERA.COM
›NOISE ABATEMENT PROCS IN EFCT CTC ARPT MGR 360-385-0656. TKOF AND LNDG PROHIBITED ON TURF NEXT TO RWY.
›100LL AVAILABLE 24 HRS WITH CREDIT CARD. NO CASH SALES.
›DEER INVOF RWY.
›FOR CD CTC WHIDBEY APCH AT 360-257-3310.
›RWY 27 ARE BAFFLED BYD 6.5 DEG RIGHT OF RWY CNTRLN DUE TO TRRN.
›PILOTS BRING OWN TIEDOWNS.
›ACTVT REIL RWY 09; PAPI RWY 09 & 27; MIRL RWY 09/27 - CTAF.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗Official airport website
↗Wikipedia
↗K0S9 on OurAirports
FREQUENTLY ASKED
Does K0S9 have a METAR?
Yes. K0S9 has a current METAR observation, decoded into plain English on this page.
Does K0S9 have a TAF?
When K0S9 issues a TAF, its decoded forecast timeline loads live on this page; otherwise use the nearest TAF-issuing field as a planning reference.
What is the field elevation at K0S9?
K0S9 sits at 108 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for K0S9?
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.