WxDecoder

31WA Weather Mary Bridge Heliport

Tacoma, WashingtonElevation 409 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KTIW · 5 NM W · 28 min old
Ceiling 6,000 ft, visibility 9 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KTIW
WIND
Calm
no steady wind
VISIBILITY
9 SM
14.5 km
CEILING
6,000 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 9C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight chance light rain, low near 47F, 45% 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 – 45%
Monday Chance Light Rain 53/48 NNE 3 kt – 35%
Tuesday Light Rain Likely 53/46 SSW 10 kt – 93%
Wednesday Showers And Thunderstorms 49/43 SSW 10 kt – 94% Thunderstorms in the forecast
Thursday Light Rain 47/41 SSE 4 kt – 80%
Friday Slight Chance Light Rain 48/39 NE 5 kt – 24%
Saturday Mostly Sunny 49/40 NE 3 kt – 7%
Sunday Partly Sunny 51 NNW 3 kt – 12%

Source: National Weather Service (office SEW). Forecast issued 0346Z.

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 31WA. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

2 runways · longest 40 ft

H1
Dimensions
40 x 40 ft
Surface
Mats (good)
Edge lights
PERI
RWY H1
H2
Dimensions
55 x 55 ft
Surface
Roof
Edge lights
PERI
RWY H2

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
409 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0104Z 6:04 PM
Sunrise
1443Z 7:43 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
0104Z (6:04 PM local) → 1443Z (7:43 AM local)
sunset to sunrise (91.209)
Night passenger currency
0204Z (7:04 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

Mary Bridge Heliport is in Tacoma, Washington. Field elevation 409 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeHeliport
ManagerEVAN BERTUCCI, MISSION CONT MGR
Manager phone985-640-8526
AttendedContinuous (24 hours)
CHARTS & AIRSPACE
ICAO / IATA31WA
SectionalSEATTLE
Center (ARTCC)SEATTLE
Flight service (AFSS)SEATTLE
RegionWashington
CountryUnited States
Coordinates47.2598, -122.4521
Distance from city0 NM N
SERVICES & LIGHTING
Control towerNon-towered
Field lightingSee remarks
CTAF123.050
UNICOM123.050
FREQUENCIES

Communications

123.050
CTAF
CTAF
123.050
UNICOM
UNICOM

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

AIRCRAFT ACTIVITY

31WA traffic patterns

2026-06-14 to 2026-10-23, 55 days observed · data 2026-10-23

Medium confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
1.3
AVG OPS/DAY
1.7
Activity trend over 13 days: falling, from 2 to 1 operations per dayOperations trend (13 days)

Busiest day: Thu · Busiest month: Jun

FLEET MIX
Helicopter 75%Unknown 25%

Mostly rotorcraft.

TOP AIRCRAFT TYPES
›EC35 (Helicopter) · ~10 landings/mo
›DH3T (Unknown) · ~5 landings/mo
›B429 (Helicopter) · ~4 landings/mo
›C180 (Unknown) · ~1 landings/mo
›H47 (Helicopter) · ~1 landings/mo
LIKELY BASED AIRCRAFT
Low-confidence estimate

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

›EC35 (Helicopter)
›DH3T (Unknown)

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

31WA has no on-field report. Nearest reporting station: KTIW (5 NM W, VFR).

KTIW Tacoma Narrows Airport
5 NM W
VFR
KTCM McChord Air Force Base
7 NM S
VFR
KGRF Gray Army Air Field
12 NM SW
LIFR
KSEA Seattle–Tacoma International Airport
13 NM NE
VFR
KRNT Renton Municipal Airport
17 NM NE
VFR
KBFI King County International Airport - Boeing Field
17 NM N
VFR
AIRPORT REMARKS

Operational remarks

›MARKING RQRD.
›FOR CD CTC SEATTLE APCH AT 206-214-4794.
›(CONTACT TITLE) OTR CTC: EVAN.BERTUCCI@MULTICARE.ORG
›OTR FONE 760-845-9752.
›PAD H1 SERVES TG HOSP ADULT AND NICU.
›PAD H2 SERVES THE NEW MARY BRIDGE PEDIATRIC HOSP.
›TLOF 55' X 55'; FATO 92.2 FT X 92.2 FT; SAFETY AREA 122.83 FT X 122.83 FT. PRI INGRESS 118 DEGS; PRI EGRESS 298 DEGS; SEC INGRESS 298 DEGS; SEC EGRESS 118 DEGS. MTOGW 16000 LBS.
›ACTVT PERI LGTS PAD H2 MARY BRIDGE - CTAF. PERI LGTS PAD H1 - ACTVT MANUALLY BY RDO OR PHONE.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗31WA on OurAirports
FREQUENTLY ASKED
Does 31WA have a METAR?
No on-field METAR is issued for 31WA. This page uses the nearest reporting station as a reference.
Does 31WA have a TAF?
No TAF is issued directly for 31WA. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 31WA?
31WA sits at 409 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 31WA?
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.