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Rosario Seaplane Base (W49) Area Aviation Weather & Runway Winds

As of 2:55 AM PDT, Oct 28, based on the nearest station (KORS), W49 is currently VFR with winds from 180° at 8 knots, visibility 10+ statute miles, and a 4,000 ft ceiling.

Aviation weather near Rosario Seaplane Base in Rosario, WA, decoded from the nearest reporting station (KORS): conditions and runway crosswinds.

Rosario Seaplane Base (W49) is a seaplane base in Rosario, WA. W49 has no weather station of its own. Conditions here are decoded from KORS, about 4 nm away, the nearest reporting station, and local conditions can differ. It has 2 physical runways (07/25, 16/34), the longest 10,000 ft. The nearest TAF is issued for KBLI.

Ask ATIS AIAsk anything about W49's weather, runways or delays, or search another airport.
VFR
Observed 0955Z (2:55 AM PDT)live · refreshes every 60s

No weather station at this airport: showing the nearest station KORS, 4.1 nm away.

Wind
180° 8 kt
Visibility
10+ sm
Ceiling
4,000 ft
Altimeter
29.81"
Temp / Dew
46°F / 8°C
feels like 41°F

Wind from the south (180°) at 8 kt, visibility 10+ statute miles, broken clouds at 4,000 ft, broken clouds at 4,900 ft, overcast at 6,000 ft, temperature 8°C (46°F), altimeter 29.81 inHg. Conditions are Visual Flight Rules (VFR), ceiling 4,000 ft.

Raw METAR
METAR KORS 280955Z AUTO 18008KT 10SM BKN040 BKN049 OVC060 08/08 A2981 RMK AO2

What changed at KORS (nearest station)?

Since the 0935Z (2:35 AM PDT) report, compared automatically against the latest METAR.

No significant changes since the 0935Z (2:35 AM PDT) report, conditions are holding steady.

Current pilot readout for W49

Based on the nearest station (KORS), W49 is currently VFR with winds from 180° at 8 knots, visibility 10+ statute miles, and a 4,000 ft ceiling. the wind favors south-facing runway ends (16). Density altitude is approximately -700 ft (field elevation 0 ft). W49 does not publish a TAF. The nearest TAF station is KBLI, about 16 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
16FAV8 kt head0 kt
070 kt head8 kt right
250 kt head8 kt left
348 kt tail0 kt

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

W49 runways

2 physical runways · 4 runway ends. Each card opens the runway's intelligence page: equipment and lighting, LAHSO, frequencies, today's configuration, predicted use, history and approaches.

  • Runway 07/25
    2,500 × 1000 ft · WATER
    Status not monitored
    Current use
    no stated-runway source at W49
    Wind
    07
    0 kt headwind · 8 kt crosswind from right
    25
    0 kt headwind · 8 kt crosswind from left
    no active equipment NOTAM receivedView Runway Intelligence →
  • Runway 16/34
    10,000 × 1000 ft · WATER
    Status not monitored
    Current use
    no stated-runway source at W49
    Wind
    16
    8 kt headwind · 0 kt crosswind
    34
    8 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
061310Z22Z09Z

Over the last 24 h: wind 0→8 kt, ceiling 6,000 ft → 4,000 ft.

W49 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 W49

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

PIREP0919Z (2:19 AM PDT) · 45 NM S of W49 · 9,000 ft MSL · B737
moderate rime icing
Show raw report
SEA UA /OV SEA325031/TM 0919/FL90/TP B737/TA M8/IC MOD RIME
SEA UAHeader: reporting station and UA: a routine pilot report.
OV SEA325031Location: fix or navaid, optionally with a radial and distance in NM.
TM 0919Reported at 09:19 UTC.
FL90Altitude: hundreds of feet MSL. UNKN = unknown; DURC/DURD = during climb/descent.
TP B737Aircraft type reporting.
TA M8Outside air temperature, °C.
IC MOD RIMEIcing: moderate rime.
PIREP0713Z (12:13 AM PDT) · 58 NM S of W49 · during climb · B738
light chop turbulence
Show raw report
SEA UA /OV SEA285027/TM 0713/FL180/TP B738/SK TOP180/TB LGT CHOP/IC NEG/RM DURC-ZSE
SEA UAHeader: reporting station and UA: a routine pilot report.
OV SEA285027Location: fix or navaid, optionally with a radial and distance in NM.
TM 0713Reported at 07:13 UTC.
FL180Altitude: 18,000 ft MSL.
TP B738Aircraft type reporting.
SK TOP180Sky condition: cloud bases and tops in hundreds of feet MSL.
TB LGT CHOPTurbulence: light chop.
IC NEGIcing: none reported.
RM DURC-ZSERemarks.
PIREP0705Z (12:05 AM PDT) · 52 NM E of W49 · 23,000 ft MSL · GL7T
Show raw report
PAE UA /OV PAE025035/TM 0705/FL230/TP GL7T/SK TOP230/RM ZSE
PAE UAHeader: reporting station and UA: a routine pilot report.
OV PAE025035Location: fix or navaid, optionally with a radial and distance in NM.
TM 0705Reported at 07:05 UTC.
FL230Altitude: 23,000 ft MSL.
TP GL7TAircraft type reporting.
SK TOP230Sky condition: cloud bases and tops in hundreds of feet MSL.
RM ZSERemarks.
PIREP0632Z (11:32 PM PDT) · 92 NM SE of W49 · during climb · A21N
light rime 7,000–18,000 ft icing
Show raw report
SEA UA /OV SEA070035/TM 0632/FL200/TP A21N/TA M03/TB NEG/IC LGT RIME 070-180/RM DURC-ZSE
SEA UAHeader: reporting station and UA: a routine pilot report.
OV SEA070035Location: fix or navaid, optionally with a radial and distance in NM.
TM 0632Reported at 06:32 UTC.
FL200Altitude: 20,000 ft MSL.
TP A21NAircraft type reporting.
TA M03Outside air temperature, °C.
TB NEGTurbulence: none reported.
IC LGT RIME 070-180Icing: light rime 7,000–18,000 ft.
RM DURC-ZSERemarks.
PIREP0619Z (11:19 PM PDT) · 80 NM S of W49 · 9,000 ft MSL · E75L
lt rime turbulence
Show raw report
SEA UA /OV SEA210008/TM 0619/FL90/TP E75L/SK BASES 50 TOPS 100/TB LT RIME
SEA UAHeader: reporting station and UA: a routine pilot report.
OV SEA210008Location: fix or navaid, optionally with a radial and distance in NM.
TM 0619Reported at 06:19 UTC.
FL90Altitude: hundreds of feet MSL. UNKN = unknown; DURC/DURD = during climb/descent.
TP E75LAircraft type reporting.
SK BASES 50 TOPS 100Sky condition: cloud bases and tops in hundreds of feet MSL.
TB LT RIMETurbulence: lt rime.
PIREP0522Z (10:22 PM PDT) · 83 NM S of W49 · during descent · B738
moderate rime 17,000–8,000 ft icing
Show raw report
SEA UA /OV SEA198011/TM 0522/FL110/TP B738/TA M9/IC MOD RIME 170-080/RM DURD HAWKZ
SEA UAHeader: reporting station and UA: a routine pilot report.
OV SEA198011Location: fix or navaid, optionally with a radial and distance in NM.
TM 0522Reported at 05:22 UTC.
FL110Altitude: 11,000 ft MSL.
TP B738Aircraft type reporting.
TA M9Outside air temperature, °C.
IC MOD RIME 170-080Icing: moderate rime 17,000–8,000 ft.
RM DURD HAWKZRemarks.
PIREP0520Z (10:20 PM PDT) · 82 NM S of W49 · during descent · B38M
light rime 16,000–9,000 ft icing
Show raw report
SEA UA /OV SEA110007/TM 0520/FL110/TP B38M/TA M1/IC LGT RIME 160-090/RM DURD CHINS
SEA UAHeader: reporting station and UA: a routine pilot report.
OV SEA110007Location: fix or navaid, optionally with a radial and distance in NM.
TM 0520Reported at 05:20 UTC.
FL110Altitude: 11,000 ft MSL.
TP B38MAircraft type reporting.
TA M1Outside air temperature, °C.
IC LGT RIME 160-090Icing: light rime 16,000–9,000 ft.
RM DURD CHINSRemarks.
PIREP0505Z (10:05 PM PDT) · 81 NM S of W49 · 3,200 ft MSL · B738
Show raw report
SEA UA /OV SEA161005/TM 0505/FL032/TP B738/SK BKN 032 CLR 060/RM BASES 032 TOPS 060
SEA UAHeader: reporting station and UA: a routine pilot report.
OV SEA161005Location: fix or navaid, optionally with a radial and distance in NM.
TM 0505Reported at 05:05 UTC.
FL032Altitude: 3,200 ft MSL.
TP B738Aircraft type reporting.
SK BKN 032 CLR 060Sky condition: cloud bases and tops in hundreds of feet MSL.
RM BASES 032 TOPS 060Remarks.

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

Recent aviation weather trends at W49

From ATIS Alerts' hourly weather history.

Over the past 24 hours, the nearest station KORS reported a mix of conditions, most often marginal VFR across 70 observations, with 16 flight-category changes. The strongest gust reached 11 kt, the lowest ceiling was 900 ft. Wind most often came from the S.

Last 24 hours
VFR 44%MVFR 54%IFR 1%
Wind avg/max: 3/9 kt
Max gust: 11 kt
Lowest ceiling: 900 ft
Lowest vis: -
Prevailing wind: S
Category changes: 16

Most recent change: MVFR → VFR

Last 7 days
VFR 78%MVFR 18%IFR 2%LIFR 2%
Wind avg/max: 4/17 kt
Max gust: 20 kt
Lowest ceiling: 100 ft
Lowest vis: 0.25 sm
Prevailing wind: S
Category changes: 29

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.

16
50%
34
45%
25
3%
07
2%

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No live weather from W49

Live crosswind meter

W49 has no weather feed online, so the wind comes from KORS, 4.1 nm away.

N16348 kt
Headwind
8 kt
Crosswind
0 kt

Wind is 1° off runway 16, the end with the most headwind right now.

Have a weather station at W49? Help us make your field's weather available to every pilot, free. Add your field's wx station →

Water · 10,000 ft. Headings from FAA runway data. Not for navigation.

Field aerial

North up

Aerial photo of Rosario Seaplane Base (W49)
N ↑

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

Attended
Daily DALGT local
Landing fee
No
Control tower
None

Airport

Type
Seaplane base
IATA
RSJ
FAA LID
W49
City
Rosario
State
Washington
Country
United States
Elevation
0 ft
Coordinates
48.6457, -122.8680
Runways
2 physical runways · 4 runway ends
Longest runway
10,000 ft
Weather reporting
Nearest station KORS
TAF
Nearest KBLI
Time zone
America/Los_Angeles
Next sunset
15h 2m

Run a flight school, FBO, or club here? Embed W49'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 Rosario Seaplane Base (W49)

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 Rosario Seaplane Base, 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 W49 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.

Spotted incorrect airport info? ✏️ Suggest an edit

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