WxDecoder

WN71 Weather Evans Heliport

Bellevue, WashingtonElevation 200 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KBFI · 8 NM SW · 17 min old
Ceiling 7,500 ft, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KBFI
WIND
VRB@3
steady
VISIBILITY
10 SM
16.1 km
CEILING
7,500 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 tonight chance light rain, low near 45F, 43% 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 45 E 2 kt – 43%
Monday Chance Light Rain 57/46 E 1 kt – 51%
Tuesday Light Rain Likely 57/44 SSW 6 kt – 92%
Wednesday Showers And Thunderstorms 54/41 S 7 kt – 92% Thunderstorms in the forecast
Thursday Light Rain Likely 52/38 SSE 3 kt – 67%
Friday Slight Chance Light Rain 53/35 NNE 3 kt – 18%
Saturday Mostly Sunny 54/36 NE 2 kt – 5%
Sunday Partly Sunny 55 SE 2 kt – 14%

Source: National Weather Service (office SEW). Forecast issued 0209Z.

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 WN71. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 50 ft

H1
Dimensions
50 x 50 ft
Surface
Asphalt
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
200 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0102Z 6:02 PM
Sunrise
1443Z 7:43 AM
Loggable night
0134Z (6:34 PM local) → 1411Z (7:11 AM local)
end of evening to start of morning civil twilight
Position lights required
0102Z (6:02 PM local) → 1443Z (7:43 AM local)
sunset to sunrise (91.209)
Night passenger currency
0202Z (7:02 PM local) → 1343Z (6:43 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

Evans Heliport is in Bellevue, Washington. Field elevation 200 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeHeliport
ManagerJAMES L. EVANS
Manager phone425-454-8211
AttendedContinuous (24 hours)
CHARTS & AIRSPACE
ICAO / IATAWN71
SectionalSEATTLE
Center (ARTCC)SEATTLE
Flight service (AFSS)SEATTLE
RegionWashington
CountryUnited States
Coordinates47.6304, -122.1760
Distance from city3 NM NE
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

WN71 traffic patterns

2026-07-11 to 2026-09-09, 4 days observed · data 2026-10-23

Insufficient confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
1.3
AVG OPS/DAY
1.3
Activity trend over 3 days: rising, from 1 to 2 operations per dayOperations trend (3 days)

Busiest day: Wed · Busiest month: Sep

FLEET MIX
Piston single 50%Helicopter 25%Unknown 25%

Mostly small piston aircraft.

TOP AIRCRAFT TYPES
›C172 (Piston single) · ~2 landings/mo
›B407 (Helicopter) · ~1 landings/mo
›UNKN (Unknown) · ~1 landings/mo
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

WN71 has no on-field report. Nearest reporting station: KBFI (8 NM SW, VFR).

KBFI King County International Airport - Boeing Field
8 NM SW
VFR
KRNT Renton Municipal Airport
8 NM S
VFR
KSEA Seattle–Tacoma International Airport
12 NM SW
VFR
KPAE Seattle Paine Field International Airport
17 NM N
VFR
KPWT Bremerton National Airport
25 NM W
VFR
KTIW Tacoma Narrows Airport
27 NM SW
VFR
AIRPORT REMARKS

Operational remarks

›PLINE 200' AGL 200' W.
›FOR CD CTC SEATTLE APCH AT 206-214-4794.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗WN71 on OurAirports
FREQUENTLY ASKED
Does WN71 have a METAR?
No on-field METAR is issued for WN71. This page uses the nearest reporting station as a reference.
Does WN71 have a TAF?
No TAF is issued directly for WN71. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at WN71?
WN71 sits at 200 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for WN71?
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.