WxDecoder

WT78 Weather Building Care EMS Helistop

Seattle, WashingtonElevation 230 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KBFI · 8 NM S · 54 min old
Ceiling 4,800 ft, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KBFI
WIND
130@5
steady
VISIBILITY
10 SM
16.1 km
CEILING
4,800 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 from 88° at 4 kt, temperature 8.33C. This observation is older than usual, so treat it with extra caution. Treat this as supplemental, not an aviation observation. Forecast suggests this afternoon chance rain, high near 56F, low near 46F, 50% 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
This Afternoon Chance Rain 56/46 SSE 3 kt – 50%
Monday Chance Light Rain 57/46 ENE 2 kt – 45%
Tuesday Light Rain Likely 57/45 SSW 7 kt – 89%
Wednesday Showers And Thunderstorms 54/43 S 9 kt – 89% Thunderstorms in the forecast
Thursday Light Rain Likely 53/40 SSW 4 kt – 66%
Friday Slight Chance Light Rain 53/39 NNE 3 kt – 18%
Saturday Mostly Sunny 54/39 NNE 2 kt – 5%

Source: National Weather Service (office SEW). Forecast issued 2147Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

OUR HEADSET PICK · NOT SPONSORED

DC

David Clark DC ONE-X

Not sponsored, just the headset we'd buy ourselves: the DC ONE-X, with hybrid noise canceling, Bluetooth, and 30+ hour battery. And David Clark's A+ customer service is the real reason we recommend them.

Visit David Clark
RUNWAYS & WIND
Crosswind calculator
No runway layout is available for WT78. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 40 ft

H1
Dimensions
40 x 40 ft
Surface
Concrete (good)
Edge lights
PERI
RWY H1

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
230 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
0134Z (6:34 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

Building Care EMS Helistop is in Seattle, Washington. Field elevation 230 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeHeliport
ManagerBYRON CLOUATRE
Manager phone206-987-2901
CHARTS & AIRSPACE
ICAO / IATAWT78
SectionalSEATTLE
Center (ARTCC)SEATTLE
Flight service (AFSS)SEATTLE
RegionWashington
CountryUnited States
Coordinates47.6619, -122.2833
Distance from city1 NM N
SERVICES & LIGHTING
Control towerNon-towered
Field lightingSunset to sunrise
BeaconSee remarks
CTAF122.900
FREQUENCIES

Communications

122.900
CTAF
CTAF

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

AIRCRAFT ACTIVITY

WT78 traffic patterns

2026-06-12 to 2026-10-23, 39 days observed · data 2026-10-23

Medium confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
1.2
AVG OPS/DAY
2.2
Activity trend over 11 days: rising, from 1 to 2 operations per dayOperations trend (11 days)

Busiest day: Wed · Busiest month: Jun

FLEET MIX
Helicopter 55%Piston single 42%Unknown 3%

Mostly rotorcraft.

TOP AIRCRAFT TYPES
›EC35 (Helicopter) · ~3 landings/mo
›AR15 (Piston single) · ~3 landings/mo
›B429 (Helicopter) · ~2 landings/mo
›PA18 (Piston single) · ~2 landings/mo
›C180 (Piston single) · ~1 landings/mo
LIKELY BASED AIRCRAFT
Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly single-engine piston aircraft.

›PA18 (Piston single)
›EC35 (Helicopter)
›AR15 (Piston single)

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

WT78 has no on-field report. Nearest reporting station: KBFI (8 NM S, VFR).

KBFI King County International Airport - Boeing Field
8 NM S
VFR
KRNT Renton Municipal Airport
10 NM S
VFR
KSEA Seattle–Tacoma International Airport
13 NM S
VFR
KPAE Seattle Paine Field International Airport
15 NM N
VFR
KPWT Bremerton National Airport
22 NM SW
MVFR
KTIW Tacoma Narrows Airport
27 NM SW
VFR
AIRPORT REMARKS

Operational remarks

›CONDITIONAL. THE PROPONET SHOULD MEET ALL STATE AND LOCAL REQUIREMENTS, THE LANDING AREA SHOULD BE LIMITED TO PRIVATE-USE ONLY AND ALL OPERATIONS SHOULD BE CONDUCTED VISUAL CONDITIONS. RECOMMENDED ESTABLISHMENT AND USE OF CTAF.
›ALL OPS USE NORTH PAD. SOUTH PAD OPS NA.
›FOR CD CTC SEATTLE APCH AT 206-214-4794.
›BYRON CLOUATRE@SEATTLECHILDRENS.ORG
›H1 NORTH PAD FOREST B FOR NML OPS. H1 TLOF 40 FT DIAMETER CIR TLOF, GWT 10K.
›H1 IS A 40-FT DIA CIRCULAR TLOF.
›REQ BY PHONE.
›MEDICAL USE ONLY.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗WT78 on OurAirports
FREQUENTLY ASKED
Does WT78 have a METAR?
No on-field METAR is issued for WT78. This page uses the nearest reporting station as a reference.
Does WT78 have a TAF?
No TAF is issued directly for WT78. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at WT78?
WT78 sits at 230 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for WT78?
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.