ATIS Alerts

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

Aviation weather near Rosario Seaplane Base in Rosario, WA, decoded from the nearest reporting station (KORS) — conditions, runway crosswinds, and free Telegram airport alerts.

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. Its 4 runways (07, 16, 25, 34) — longest 10,000 ft — are checked against the current wind in the crosswind table below. The nearest TAF is issued for KBLI. Track it in the ATIS Alerts Telegram bot to get alerts read from KORS, the station this page is based on.

No data
Awaiting observationlive · refreshes every 60s

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

Wind
—
Visibility
—
Ceiling
Unlimited
Altimeter
—
Temp / Dew
—

What changed at KORS (nearest station)?

Since the 0315Z (8:15 PM PDT) report — compared automatically against the latest METAR.

  • A ceiling formed at 6,000 ft.

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Current pilot readout for W49

A current METAR is not available for W49 right now. The nearest reporting station is KORS. Check back shortly, review a nearby reporting station, and always confirm with an official briefing before flight.

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

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

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Runway wind check

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

Use this section to quickly compare current wind alignment across available runways at W49. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.

Current wind is calm — calm wind is not a factor for runway selection, and with no wind there is no head/tail or crosswind component to compute. Live numbers return automatically once a report includes a wind direction.

RunwayHead / TailCrosswind
07——
16——
25——
34——

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

24-hour trend

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

Wind (kt)Gusts (kt)Bottom strip — flight category:VFRMVFRIFRLIFRNo report
0132503Z15Z03Z

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

W49 weather radar

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

Live weather radar around Rosario Seaplane Base in Rosario, WA: the NOAA/NWS NEXRAD composite updates about every five minutes, with NOAA lightning strike density overlaid. The loop plays the past 50 minutes, then continues into a future-radar forecast (+1 to +4 hours, NOAA HRRR model) so you can see where precipitation around W49 is headed.

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Loading radar…

Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © OpenStreetMap © CARTO

Forecast frames (amber label) are HRRR model guidance, not observed radar. Lightning strike density appears as a blue-white glow when strikes are detected in view. Radar and lightning coverage are limited in parts of Alaska, Hawaii, and offshore areas. Not for navigation.

Pilot reports (PIREPs) within 100 NM of W49

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

PIREP0306Z (8:06 PM PDT) · 72 NM S of W49 · 7,500 ft MSL · E75L
moderate 7,500–5,000 ft turbulence
Show raw report
SEA UA /OV SEA010006/TM 0306/FL075/TP E75L/TB MOD 075-050/RM CELL EXTENDING NE
SEA UAHeader — reporting station and UA: a routine pilot report.
OV SEA010006Location — fix or navaid, optionally with a radial and distance in NM.
TM 0306Reported at 03:06 UTC.
FL075Altitude: 7,500 ft MSL.
TP E75LAircraft type reporting.
TB MOD 075-050Turbulence: moderate 7,500–5,000 ft.
RM CELL EXTENDING NERemarks.
PIREP0305Z (8:05 PM PDT) · 64 NM S of W49 · 2,000 ft MSL · PC12
Show raw report
BFI UA /OV BFI315007/TM 0305/FL020/TP PC12/RM SMOOTH RIDE
BFI UAHeader — reporting station and UA: a routine pilot report.
OV BFI315007Location — fix or navaid, optionally with a radial and distance in NM.
TM 0305Reported at 03:05 UTC.
FL020Altitude: 2,000 ft MSL.
TP PC12Aircraft type reporting.
RM SMOOTH RIDERemarks.
URGENT0133Z (6:33 PM PDT) · 70 NM S of W49 · 300 ft MSL · BE99
low-level wind shear
Show raw report
BFI UUA /OV BFI315001/TM 0133/FL003/TP BE99/RM LLWS +/- 10KTS
BFI UUAHeader — reporting station and UUA: an URGENT pilot report (severe conditions, wind shear, or similar).
OV BFI315001Location — fix or navaid, optionally with a radial and distance in NM.
TM 0133Reported at 01:33 UTC.
FL003Altitude: 300 ft MSL.
TP BE99Aircraft type reporting.
RM LLWS +/- 10KTSRemarks.
PIREP0128Z (6:28 PM PDT) · 48 NM SE of W49 · 3,000 ft MSL · PA28
Show raw report
PAE UA /OV PAE360002/TM 0128/FL030/TP PA28/SK BKN030
PAE UAHeader — reporting station and UA: a routine pilot report.
OV PAE360002Location — fix or navaid, optionally with a radial and distance in NM.
TM 0128Reported at 01:28 UTC.
FL030Altitude: 3,000 ft MSL.
TP PA28Aircraft type reporting.
SK BKN030Sky condition — cloud bases and tops in hundreds of feet MSL.
PIREP0123Z (6:23 PM PDT) · 68 NM S of W49 · 1,000 ft MSL · B190
low-level wind shear
Show raw report
BFI UA /OV BFI315003/TM 0123/FL010/TP B190/RM LLWS +/- 5-7KTS
BFI UAHeader — reporting station and UA: a routine pilot report.
OV BFI315003Location — fix or navaid, optionally with a radial and distance in NM.
TM 0123Reported at 01:23 UTC.
FL010Altitude: 1,000 ft MSL.
TP B190Aircraft type reporting.
RM LLWS +/- 5-7KTSRemarks.
PIREP0102Z (6:02 PM PDT) · 64 NM S of W49 · 2,000 ft MSL · DC9
low-level wind shear
Show raw report
BFI UA /OV BFI315007/TM 0102/FL020/TP DC9/RM LLWS +/- 3-5KTS
BFI UAHeader — reporting station and UA: a routine pilot report.
OV BFI315007Location — fix or navaid, optionally with a radial and distance in NM.
TM 0102Reported at 01:02 UTC.
FL020Altitude: 2,000 ft MSL.
TP DC9Aircraft type reporting.
RM LLWS +/- 3-5KTSRemarks.
PIREP0055Z (5:55 PM PDT) · 63 NM S of W49 · during descent · PC12
light chop turbulence
Show raw report
BFI UA /OV BFI315008/TM 0055/FL020/TP PC12/TB LGT CHOP/RM DURD
BFI UAHeader — reporting station and UA: a routine pilot report.
OV BFI315008Location — fix or navaid, optionally with a radial and distance in NM.
TM 0055Reported at 00:55 UTC.
FL020Altitude: 2,000 ft MSL.
TP PC12Aircraft type reporting.
TB LGT CHOPTurbulence: light chop.
RM DURDRemarks.
PIREP0045Z (5:45 PM PDT) · 64 NM S of W49 · during descent · C700
Show raw report
BFI UA /OV BFI315007/TM 0045/FL020/TP C700/RM SMOOTH RIDE DURD
BFI UAHeader — reporting station and UA: a routine pilot report.
OV BFI315007Location — fix or navaid, optionally with a radial and distance in NM.
TM 0045Reported at 00:45 UTC.
FL020Altitude: 2,000 ft MSL.
TP C700Aircraft type reporting.
RM SMOOTH RIDE DURDRemarks.

⚠️ 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 mostly VFR across 72 observations, with 6 flight-category changes. The strongest gust reached 22 kt, the lowest ceiling was 1,600 ft. Wind most often came from the S.

Last 24 hours
VFR 94%MVFR 6%
Wind avg/max: 7/14 kt
Max gust: 22 kt
Lowest ceiling: 1,600 ft
Lowest vis: —
Prevailing wind: S
Category changes: 6

Most recent change: MVFR → VFR

Last 7 days
VFR 92%MVFR 6%LIFR 2%
Wind avg/max: 7/18 kt
Max gust: 26 kt
Lowest ceiling: 300 ft
Lowest vis: 4 sm
Prevailing wind: S
Category changes: 16

Most recent change: MVFR → VFR

Active Runway - past 30 days
07/16/25/34
100%

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Airport facts

Reference data from the OurAirports dataset.

Type
Seaplane base
IATA
RSJ
FAA LID
W49
City
Rosario
State
Washington
Country
United States
Elevation
0 ft
Coordinates
48.6457, -122.8680
Runways
4
Longest runway
10,000 ft
Weather reporting
Nearest station KORS
TAF
Nearest KBLI
Time zone
America/Los_Angeles
Sunset in
3m

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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.

All RC flying fields →

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W49 weather — frequently asked

What runways are available at W49?+

W49 has 4 runways — 07, 16, 25, 34; the longest is 10,000 ft. This page computes the live crosswind for each runway end from the current wind.

Where does the weather shown for W49 come from?+

Rosario Seaplane Base does not have its own weather station. Conditions shown here come from the nearest reporting station, KORS, about 4 nm away — close enough for situational awareness, but local conditions at W49 can differ.

Does W49 have a TAF?+

No — W49 does not publish its own TAF. The nearest TAF station is KBLI, about 16 nm away.

Does W49 broadcast D-ATIS?+

No — W49 does not broadcast D-ATIS. Alerts for W49 from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR (via the nearest reporting station) instead.

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.

From the ATIS Alerts team

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