WxDecoder

US-4505 Weather Harsens Island Heliport

Harsens Island, MichiganElevation 578 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KMTC · 12 NM W · 26 min old
Ceiling 22,000 ft, visibility 6 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KMTC
WIND
Calm
no steady wind
VISIBILITY
6 SM
9.7 km
CEILING
22,000 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 from 150° at 3 kt, visibility 5 SM, temperature 13C. Treat this as supplemental, not an aviation observation. Forecast suggests this afternoon partly sunny, high near 66F, low near 48F, 6% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

DayConditionsTemp FWindGustsPrecipPilot note
This Afternoon Partly Sunny 66/48 SSW 5 kt – 6%
Monday Partly Sunny 64/39 NNW 7 kt – 2%
Tuesday Partly Sunny 60/43 E 6 kt – 0%
Wednesday Partly Sunny 67/55 SE 7 kt – 4%
Thursday Chance Light Rain 68/51 SW 9 kt – 26%
Friday Mostly Sunny 66/54 WNW 6 kt – 5%
Saturday Partly Sunny 67/55 S 8 kt – 38%

Source: National Weather Service (office DTX). Forecast issued 1622Z.

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 US-4505. Enter a runway number or heading to estimate wind components.
FIELD CONDITIONS

Field elevation

Field elevation
578 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2233Z 6:33 PM
Sunrise
1156Z 7:56 AM
Loggable night
2301Z (7:01 PM local) → 1127Z (7:27 AM local)
end of evening to start of morning civil twilight
Position lights required
2233Z (6:33 PM local) → 1156Z (7:56 AM local)
sunset to sunrise (91.209)
Night passenger currency
2333Z (7:33 PM local) → 1056Z (6:56 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

Harsens Island Heliport is in Harsens Island, Michigan. Field elevation 578 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
TypeHeliport
CHARTS & AIRSPACE
ICAO / IATAUS-4505
RegionMichigan
CountryUnited States
Coordinates42.5922, -82.5720
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

US-4505 traffic patterns

2026-10-19 to 2026-10-19, 1 days observed · data 2026-10-23

Low confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
1
AVG OPS/DAY
2
Operations trend (1 days)

Busiest day: Mon · Busiest month: Oct

FLEET MIX
Helicopter 100%

Mostly rotorcraft.

TOP AIRCRAFT TYPES
›R22 (Helicopter) · ~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

US-4505 has no on-field report. Nearest reporting station: KMTC (12 NM W, VFR).

KMTC Selfridge Air National Guard Base Airport
12 NM W
VFR
KPHN St Clair County International Airport
19 NM N
VFR
CYQG Windsor International Airport
26 NM SW
VFR
CYZR Chris Hadfield Airport
27 NM NE
VFR
CYCK Chatham Kent Airport
28 NM SE
VFR
KPTK Oakland County International Airport
38 NM W
VFR
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗Official airport website
↗US-4505 on OurAirports
FREQUENTLY ASKED
Does US-4505 have a METAR?
No on-field METAR is issued for US-4505. This page uses the nearest reporting station as a reference.
Does US-4505 have a TAF?
No TAF is issued directly for US-4505. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at US-4505?
US-4505 sits at 578 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for US-4505?
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.