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Jefferson County International Airport (K0S9) Aviation Weather: METAR

As of 9:35 PM PDT, Oct 27, K0S9 is currently VFR with winds from 100° at 3 knots, visibility 10+ statute miles, and a 6,000 ft ceiling.

Live aviation weather for Jefferson County International Airport in Port Townsend, WA, including METAR, flight category, wind, visibility, ceiling, altimeter and runway crosswinds.

Jefferson County International Airport (K0S9) is a general aviation airport serving pilots in and around Port Townsend, WA at a field elevation of 110 ft. K0S9 reports its own METAR, decoded live on this page as flight category, wind, visibility, ceiling and altimeter. It has one runway (09/27), the longest 3,000 ft. Automated weather is broadcast on 119.025.

Ask ATIS AIAsk anything about K0S9's weather, runways or delays, or search another airport.
VFR
Observed 0435Z (9:35 PM PDT)live · refreshes every 60s
Wind
100° 3 kt
Visibility
10+ sm
Ceiling
6,000 ft
Altimeter
29.84"
Temp / Dew
48°F / 9°C
dew 48°F / 9°C

Wind from the east (100°) at 3 kt, visibility 10+ statute miles, a few clouds at 2,300 ft, scattered clouds at 5,000 ft, broken clouds at 6,000 ft, temperature 9°C (48°F), altimeter 29.84 inHg. Conditions are Visual Flight Rules (VFR), ceiling 6,000 ft.

Raw METAR
METAR K0S9 280435Z AUTO 10003KT 10SM FEW023 SCT050 BKN060 09/09 A2984 RMK AO2

What changed at K0S9?

Since the 0415Z (9:15 PM PDT) report, compared automatically against the latest METAR.

  • Flight category improved from MVFR to VFR.
  • Ceiling lifted from 2,400 ft to 6,000 ft.

Current pilot readout for K0S9

K0S9 is currently VFR with winds from 100° at 3 knots, visibility 10+ statute miles, and a 6,000 ft ceiling. the wind favors east-facing runway ends (09). Density altitude is approximately -500 ft (field elevation 110 ft). K0S9 does not publish a TAF. The nearest TAF station is KNUW, about 19 nm away.

New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →

Runway wind check

Estimated head/tailwind and crosswind for each runway end from the current reported wind.

RunwayHead / TailCrosswind
09FAV3 kt head0 kt
273 kt tail0 kt

Open the crosswind calculator to try your own wind and runway numbers →

K0S9 runways

1 physical runway · 2 runway ends. Each card opens the runway's intelligence page: equipment and lighting, LAHSO, frequencies, today's configuration, predicted use, history and approaches.

  • Runway 09/27
    3,000 × 75 ft · ASPH-G
    Status not monitored
    Current use
    no stated-runway source at K0S9
    Wind
    09
    3 kt headwind · 0 kt crosswind
    27
    3 kt tailwind · 0 kt crosswind
    no active equipment NOTAM receivedView Runway Intelligence →

“Current use” is what the facilitystates; wind components are arithmetic on the current METAR against TRUE headings; status reflects NOTAMs received through SWIM, the tower's TFDM record and the D-ATIS — a runway reads “Open” only with a complete NOTAM picture.

24-hour trend

Wind, ceiling and flight category over the last 24 hours.

Wind (kt)Gusts (kt)Bottom strip, flight category:VFRMVFRIFRLIFRNo report
061304Z16Z04Z

Over the last 24 h: wind 0→3 kt, ceiling 6,500 ft → 6,000 ft.

K0S9 weather radar

Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.

Loading…
Loading radar…

Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap

NOAA NEXRAD composite and lightning, updated about every five minutes; amber frames are HRRR model guidance, not observed radar. Not for navigation.

Pilot reports (PIREPs) within 100 NM of K0S9

Reported by pilots in flight over the past 6 hours, via aviationweather.gov.

PIREP0432Z (9:32 PM PDT) · 66 NM S of K0S9 · during descent · PC12
light turb turbulencelight rime icing
Show raw report
SEA UA /OV SEA201038/TM 0432/FL100/TP PC12/TA -05/TB LGT TURB/IC LGT RIME /RM DURD OLM 100-075
SEA UAHeader: reporting station and UA: a routine pilot report.
OV SEA201038Location: fix or navaid, optionally with a radial and distance in NM.
TM 0432Reported at 04:32 UTC.
FL100Altitude: 10,000 ft MSL.
TP PC12Aircraft type reporting.
TA -05Outside air temperature, °C.
TB LGT TURBTurbulence: light turb.
IC LGT RIMEIcing: light rime.
RM DURD OLM 100-075Remarks.
PIREP0430Z (9:30 PM PDT) · 47 NM SE of K0S9 · 2,500 ft MSL · A21N
Show raw report
SEA UA /OV SEA161005/TM 0430/FL025/TP A21N/SK BKN 025 /RM BASES 025
SEA UAHeader: reporting station and UA: a routine pilot report.
OV SEA161005Location: fix or navaid, optionally with a radial and distance in NM.
TM 0430Reported at 04:30 UTC.
FL025Altitude: 2,500 ft MSL.
TP A21NAircraft type reporting.
SK BKN 025Sky condition: cloud bases and tops in hundreds of feet MSL.
RM BASES 025Remarks.
PIREP0409Z (9:09 PM PDT) · 17 NM NW of K0S9 · 19,000 ft MSL · B738
light rime 19,000–16,000 ft icing
Show raw report
PAE UA /OV CVV255015/TM 0409/FL190/TP B738/TA M12/IC LGT RIME 190-160/RM MARNR /ZSE
PAE UAHeader: reporting station and UA: a routine pilot report.
OV CVV255015Location: fix or navaid, optionally with a radial and distance in NM.
TM 0409Reported at 04:09 UTC.
FL190Altitude: 19,000 ft MSL.
TP B738Aircraft type reporting.
TA M12Outside air temperature, °C.
IC LGT RIME 190-160Icing: light rime 19,000–16,000 ft.
RM MARNR /ZSERemarks.
PIREP0340Z (8:40 PM PDT) · 26 NM NW of K0S9 · 24,000 ft MSL · B739
Show raw report
NUW UA /OV CVV260025/TM 0340/FL240/TP B739/SK TOPS240-220/RM ZSE
NUW UAHeader: reporting station and UA: a routine pilot report.
OV CVV260025Location: fix or navaid, optionally with a radial and distance in NM.
TM 0340Reported at 03:40 UTC.
FL240Altitude: 24,000 ft MSL.
TP B739Aircraft type reporting.
SK TOPS240-220Sky condition: cloud bases and tops in hundreds of feet MSL.
RM ZSERemarks.
PIREP0330Z (8:30 PM PDT) · 42 NM SE of K0S9 · 2,600 ft MSL · B739
Show raw report
SEA UA /OV SEA/TM 0330/FL026/TP B739/SK BKN026
SEA UAHeader: reporting station and UA: a routine pilot report.
OV SEALocation: fix or navaid, optionally with a radial and distance in NM.
TM 0330Reported at 03:30 UTC.
FL026Altitude: 2,600 ft MSL.
TP B739Aircraft type reporting.
SK BKN026Sky condition: cloud bases and tops in hundreds of feet MSL.
PIREP0305Z (8:05 PM PDT) · 35 NM SE of K0S9 · 300 ft MSL · CL30
low-level wind shear
Show raw report
BFI UA /OV KBFI315003/TM 0305/FL003/TP CL30/RM LLWS +/- 6 KTS
BFI UAHeader: reporting station and UA: a routine pilot report.
OV KBFI315003Location: fix or navaid, optionally with a radial and distance in NM.
TM 0305Reported at 03:05 UTC.
FL003Altitude: 300 ft MSL.
TP CL30Aircraft type reporting.
RM LLWS +/- 6 KTSRemarks.
PIREP0255Z (7:55 PM PDT) · 50 NM SE of K0S9 · 10,000 ft MSL · PC12
moderate rime 7,000–12,000 ft icing
Show raw report
SEA UA /OV SEA040028/TM 0255/FL100/TP PC12/TA -07/IC MOD RIME 070-120
SEA UAHeader: reporting station and UA: a routine pilot report.
OV SEA040028Location: fix or navaid, optionally with a radial and distance in NM.
TM 0255Reported at 02:55 UTC.
FL100Altitude: 10,000 ft MSL.
TP PC12Aircraft type reporting.
TA -07Outside air temperature, °C.
IC MOD RIME 070-120Icing: moderate rime 7,000–12,000 ft.
PIREP0210Z (7:10 PM PDT) · 43 NM E of K0S9 · during descent · B737
light continuous turbulencelight rime 12,000–13,000 ft icing
Show raw report
SEA UA /OV 4752N 12146W/TM 0210/FL110/TP B737/TB LGT CONS/IC LGT RIME 120-130/RM DURD CONT LGT TURB FL190-110 AND LGT RM ICE FL130-120/ASA AWC-WEB
SEA UAHeader: reporting station and UA: a routine pilot report.
OV 4752N 12146WLocation: fix or navaid, optionally with a radial and distance in NM.
TM 0210Reported at 02:10 UTC.
FL110Altitude: 11,000 ft MSL.
TP B737Aircraft type reporting.
TB LGT CONSTurbulence: light continuous.
IC LGT RIME 120-130Icing: light rime 12,000–13,000 ft.
RM DURD CONT LGT TURB FL190-…Remarks.

⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.

Recent aviation weather trends at K0S9

From ATIS Alerts' hourly weather history.

Over the past 24 hours, K0S9 reported a mix of conditions, most often VFR across 70 observations, with 23 flight-category changes. The strongest gust reached 11 kt, the lowest ceiling was 800 ft. Wind most often came from the E.

Last 24 hours
VFR 53%MVFR 31%IFR 11%LIFR 4%
Wind avg/max: 2/7 kt
Max gust: 11 kt
Lowest ceiling: 800 ft
Lowest vis: -
Prevailing wind: E
Category changes: 23

Most recent change: MVFR → VFR

Last 7 days
VFR 74%MVFR 19%IFR 4%LIFR 2%
Wind avg/max: 2/13 kt
Max gust: 17 kt
Lowest ceiling: 100 ft
Lowest vis: 0.25 sm
Prevailing wind: SE
Category changes: 44

Most recent change: MVFR → VFR

Wind-favored runway - past 30 days

Share of hours each runway had the most headwind. From wind reports, not ATC assignments.

27
60%
09
40%

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Live K0S9 Weather

Live crosswind meter

Measured by K0S9's own weather station.

N09273 kt
Headwind
3 kt
Crosswind
0 kt

Wind is 4° off runway 09, the end with the most headwind right now.

Asphalt · 3,000 ft. Headings from FAA runway data. Not for navigation.

Field aerial

North up

Aerial photo of Jefferson County International Airport (K0S9) with runway 09/27 marked
N ↑

Runway 09/27 drawn from FAA threshold coordinates.

Imagery: USGS The National Map (public domain). Something off? ✏️ Suggest an edit

Airport info

From the FAA airport record (cycle 2026-10-01) and OurAirports.

Services

Fuel
100LL
Attended
Daily 0900-1800 local
Repairs
Airframe & engine, major
Transient parking
Tie-downs
Landing fee
No
Other services
Flight instruction · Aircraft rental
Pattern altitude
1,000 ft MSL (890 AGL)
Control tower
None
Wind indicator
Lighted

Airport

Type
General aviation airport
ICAO
K0S9
IATA
TWD
FAA LID
0S9
City
Port Townsend
State
Washington
Country
United States
Elevation
110 ft
Coordinates
48.0538, -122.8110
Runways
1 physical runway · 2 runway ends
Longest runway
3,000 ft
Weather reporting
Reports METAR
TAF
Nearest KNUW
AWOS/ASOS
119.025 MHz
Time zone
America/Los_Angeles
Next sunset
20h 15m

Run a flight school, FBO, or club here? Embed K0S9's live status on your website, free →

Nearby airports

Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.

VFRMVFRIFRLIFRNo report

RC flying fields nearby

AMA model-aircraft club fields around this airport: live wind, crosswind & flyability on each page.

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Pilot PIREPs for Jefferson County International Airport (K0S9)

Community-submitted

Community-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.

Read recent community-submitted pilot notes for Jefferson County International Airport, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.

⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.

No Pilot PIREPs have been submitted for K0S9 yet. Recently flew here? Help the next pilot by leaving a quick airport note.

Pilot PIREPs are community pilot notes for situational awareness only, not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.

⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

No D-ATIS at this airport, showing METAR.

Spotted incorrect airport info? ✏️ Suggest an edit

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