WxDecoder

81MI Weather Three Rivers Health Heliport

Three Rivers, MichiganElevation 818 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KHAI · 3 NM NE · 20 min old
No ceiling, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KHAI
WIND
060@1
steady
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer
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 60° at 1 kt, visibility 10 SM, temperature 14C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight partly cloudy, low near 46F, 2% chance of precipitation. Key risks: thunderstorms in the forecast.

PILOT WEATHER NOTES
Thunderstorms in the forecastWeather.gov
Thursday: Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Partly Cloudy 46 SW 4 kt – 2%
Monday Patchy Fog then Mostly Sunny 71/46 W 4 kt – 3%
Tuesday Partly Sunny 67/50 SE 9 kt – 0%
Wednesday Mostly Sunny 72/53 S 9 kt – 4%
Thursday Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms 74/53 SW 9 kt – 23% Thunderstorms in the forecast
Friday Partly Sunny 74/55 S 4 kt – 20%
Saturday Chance Rain Showers 71/55 S 9 kt – 38%
Sunday Chance Rain Showers 68 S 9 kt – 48%

Source: National Weather Service (office IWX). Forecast issued 2354Z.

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 81MI. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway

H1
Dimensions
50 x 50 ft
Surface
Concrete (good)
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
818 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2246Z 6:46 PM
Sunrise
1207Z 8:07 AM
Loggable night
2314Z (7:14 PM local) → 1139Z (7:39 AM local)
end of evening to start of morning civil twilight
Position lights required
2246Z (6:46 PM local) → 1207Z (8:07 AM local)
sunset to sunrise (91.209)
Night passenger currency
2346Z (7:46 PM local) → 1107Z (7:07 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

Three Rivers Health Heliport is in Three Rivers, Michigan. Field elevation 818 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeHeliport
ManagerDANIEL UNDERHILL
Manager phone269-806-6723
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATA81MI
SectionalCHICAGO
Center (ARTCC)CHICAGO
Flight service (AFSS)CLEVELAND
RegionMichigan
CountryUnited States
Coordinates41.9355, -85.6487
Distance from city1 NM SW
SERVICES & LIGHTING
Control towerNon-towered
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

81MI traffic patterns

2026-09-27 to 2026-09-27, 1 days observed · data 2026-10-23

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

Busiest day: Sun · Busiest month: Sep

FLEET MIX
Helicopter 100%

Mostly rotorcraft.

TOP AIRCRAFT TYPES
›EC45 (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

81MI has no on-field report. Nearest reporting station: KHAI (3 NM NE, VFR).

KHAI Three Rivers Municipal Dr Haines Airport
3 NM NE
VFR
KIRS Kirsch Municipal Airport
12 NM SE
VFR
KAZO Kalamazoo/Battle Creek International Airport
18 NM N
VFR
KEKM Elkhart Municipal Airport
20 NM SW
VFR
KGSH Goshen Municipal Airport
25 NM S
VFR
KBTL Battle Creek Executive Airport at Kellogg Field
28 NM NE
VFR
AIRPORT REMARKS

Operational remarks

›FOR CD CTC GREAT LAKES APCH AT 269-459-3344, WHEN APCH CLSD CTC CHICAGO ARTCC AT 630-906-8921.
›MEDICAL USE.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗81MI on OurAirports
FREQUENTLY ASKED
Does 81MI have a METAR?
No on-field METAR is issued for 81MI. This page uses the nearest reporting station as a reference.
Does 81MI have a TAF?
No TAF is issued directly for 81MI. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at 81MI?
81MI sits at 818 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for 81MI?
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.