WxDecoder

WA03 Weather Tristan Heliport

Sumas, WashingtonElevation 48 ftHeliport
OFF-FIELD REFERENCE
Nearest report: CYXX · 4 NM NW · 47 min old
Ceiling 8,300 ft, visibility 15 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · CYXX
WIND
020@5
steady
VISIBILITY
15 SM
24.1 km
CEILING
8,300 ft
lowest BKN/OVC
FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

No aviation METAR is published for this airport. The nearest National Weather Service station reports wind calm, temperature 5C. This observation is older than usual, so treat it with extra caution. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly cloudy, low near 42F, 6% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Cloudy 42 NE 11 kt – 6%
Monday Partly Sunny then Slight Chance Light Rain 58/42 NNE 3 kt – 27%
Tuesday Light Rain 53/39 S 6 kt – 100%
Wednesday Light Rain 51/36 E 4 kt – 91%
Thursday Chance Light Rain 52/33 NE 6 kt – 38%
Friday Mostly Sunny 54/32 NNE 6 kt – 10%
Saturday Mostly Sunny 55/33 NNE 4 kt – 6%
Sunday Partly Sunny 55 NE 2 kt – 14%

Source: National Weather Service (office SEW). Forecast issued 0347Z.

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
Crosswind calculator
No runway layout is available for WA03. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

2 runways · longest 45 ft

03/21
Dimensions
5,000 x 1,000 ft
Surface
Water
RWY 03
RWY 21
12/30
Dimensions
2,550 x 500 ft
Surface
Water
RWY 12
RWY 30

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

FIELD CONDITIONS

Field elevation

Field elevation
48 ft MSL

Density and pressure altitude need a current temperature and altimeter from the METAR.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0100Z 6:00 PM
Sunrise
1446Z 7:46 AM
Loggable night
0133Z (6:33 PM local) → 1414Z (7:14 AM local)
end of evening to start of morning civil twilight
Position lights required
0100Z (6:00 PM local) → 1446Z (7:46 AM local)
sunset to sunrise (91.209)
Night passenger currency
0200Z (7:00 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

Tristan Heliport is in Sumas, Washington. Field elevation 48 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeHeliport
ManagerTROY BUCKS
Manager phone(360) 378-2155
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATAWA03
SectionalSEATTLE
Center (ARTCC)SEATTLE
Flight service (AFSS)SEATTLE
RegionWashington
CountryUnited States
Coordinates48.9875, -122.2881
Distance from city0 NM SW
SERVICES & LIGHTING
Control towerNon-towered
CTAF128.250
FREQUENCIES

Communications

128.250
CTAF
CTAF

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

AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

WA03 has no on-field report. Nearest reporting station: CYXX (4 NM NW, VFR).

CYXX Abbotsford International Airport
4 NM NW
VFR
KBLI Bellingham International Airport
15 NM SW
VFR
KORS Orcas Island Airport
30 NM SW
VFR
KBVS Skagit Regional Airport
31 NM S
VFR
CYVR Vancouver International Airport
37 NM W
VFR
CYHE Hope Airport / FVRD Regional Airpark
39 NM NE
VFR
AIRPORT REMARKS

Operational remarks

›CALL AHD FOR MOORAGE AND LANDING INSTRN, 800-586-3590.
›VFR OPS ONLY.
›CALL AHD TO MAKE CUST APNTMT, 360-378-2080.
›ARPT CHANGED TO PRI USE PER NRA CASE ASN: 2026-ANM-517-NRA.
›(CONTACT TITLE) OTR CTC: TROY@ROCHEHARBOR.COM
›VFR OPS ONLY.
›BOATS IN LANDING AREAS AND IN DOCKING AREA.
›VFR OPS ONLY.
›(CONTACT TITLE) OTR CTC: TROY@ROCHEHARBOR.COM
›DIRECT LINE: 800-586-3590.
›VFR OPS ONLY.
›APCH/DEP SVC PRVDD BY VICTORIA TRML ON 132.7/290.8. (604) 586-4560.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗WA03 on OurAirports
FREQUENTLY ASKED
Does WA03 have a METAR?
No on-field METAR is issued for WA03. This page uses the nearest reporting station as a reference.
Does WA03 have a TAF?
No TAF is issued directly for WA03. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at WA03?
WA03 sits at 48 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for WA03?
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.