WxDecoder

WA53 Weather Harborview Medical Center Heliport

Seattle, WashingtonElevation 315 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KBFI · 5 NM S · 38 min old
Ceiling 7,000 ft, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KBFI
WIND
Calm
no steady wind
VISIBILITY
10 SM
16.1 km
CEILING
7,000 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, visibility 10 SM, temperature 11C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight chance light rain, low near 47F, 48% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Wednesday: Showers And Thunderstorms. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Chance Light Rain 47 NE 2 kt – 48%
Monday Chance Light Rain 55/47 NE 2 kt – 45%
Tuesday Light Rain Likely 56/46 SSW 9 kt – 87%
Wednesday Showers And Thunderstorms 53/44 SSW 9 kt – 90% Thunderstorms in the forecast
Thursday Light Rain Likely 51/42 S 4 kt – 68%
Friday Slight Chance Light Rain 52/40 NNE 5 kt – 18%
Saturday Mostly Sunny 53/41 NNE 3 kt – 5%
Sunday Partly Sunny 53 E 3 kt – 14%

Source: National Weather Service (office SEW). Forecast issued 0107Z.

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 WA53. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 80 ft

H1
Dimensions
80 x 80 ft
Surface
Asphalt (fair)
Edge lights
PERI
RWY H1
Traffic patternLeft

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
315 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0103Z 6:03 PM
Sunrise
1444Z 7:44 AM
Loggable night
0135Z (6:35 PM local) → 1412Z (7:12 AM local)
end of evening to start of morning civil twilight
Position lights required
0103Z (6:03 PM local) → 1444Z (7:44 AM local)
sunset to sunrise (91.209)
Night passenger currency
0203Z (7:03 PM local) → 1344Z (6:44 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

Harborview Medical Center Heliport is in Seattle, Washington. Field elevation 315 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeHeliport
ManagerPAM JORGENSEN
Manager phone(206) 744-3827
AttendedALL
CHARTS & AIRSPACE
ICAO / IATAWA53
SectionalSEATTLE
Center (ARTCC)SEATTLE
Flight service (AFSS)SEATTLE
RegionWashington
CountryUnited States
Coordinates47.6040, -122.3230
Distance from city0 NM N
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

WA53 traffic patterns

2026-06-12 to 2026-10-23, 70 days observed · data 2026-10-23

High confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
4.5
AVG OPS/DAY
6.4
Activity trend over 18 days: flat, from 5 to 5 operations per dayOperations trend (18 days)

Busiest day: Tue · Busiest month: Jun

FLEET MIX
Helicopter 97%Piston single 2%Unknown 1%

Mostly rotorcraft.

TOP AIRCRAFT TYPES
›EC35 (Helicopter) · ~79 landings/mo
›B429 (Helicopter) · ~22 landings/mo
›B505 (Helicopter) · ~6 landings/mo
›B407 (Helicopter) · ~4 landings/mo
›H60 (Helicopter) · ~3 landings/mo
LIKELY BASED AIRCRAFT
Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly rotorcraft.

›EC35 (Helicopter)
›B429 (Helicopter)
›H60 (Helicopter)
›B505 (Helicopter)

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

WA53 has no on-field report. Nearest reporting station: KBFI (5 NM S, VFR).

KBFI King County International Airport - Boeing Field
5 NM S
VFR
KRNT Renton Municipal Airport
8 NM SE
VFR
KSEA Seattle–Tacoma International Airport
9 NM S
VFR
KPAE Seattle Paine Field International Airport
18 NM N
VFR
KPWT Bremerton National Airport
19 NM W
VFR
KTIW Tacoma Narrows Airport
23 NM SW
VFR
AIRPORT REMARKS

Operational remarks

›HELI HAS H IN CTR.
›PERIMETER LGTS ON HELIPAD.
›FOR CD CTC SEATTLE APCH AT 206-214-4794.
›MEDICAL USE.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗WA53 on OurAirports
FREQUENTLY ASKED
Does WA53 have a METAR?
No on-field METAR is issued for WA53. This page uses the nearest reporting station as a reference.
Does WA53 have a TAF?
No TAF is issued directly for WA53. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at WA53?
WA53 sits at 315 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for WA53?
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.