K9S5 METAR Three Forks Airport

Three Forks, MontanaElevation 4,089 ftSmall airport

OFF-FIELD REFERENCE

Nearest report: KBZN · 18 NM E · 5 min old

Ceiling 200 ft, visibility 1 SM, mist.

No on-field report, so no field flight category. Conditions at the field may differ.

OFF-FIELD REFERENCE · KBZN

WIND

130@4

steady

VISIBILITY

1 SM

1.6 km

CEILING

200 ft

lowest BKN/OVC

ACTIVE NWS ALERTS

Active weather alerts

Dense Fog AdvisoryModerate · Expected · Likely

25 1034Z to 25 1700Z

Southern Rocky Mountain Front; Southern High Plains; Upper Blackfoot and MacDonald Pass; Gates of the Mountains; Helena Valley; Elkhorn and Boulder Mountains; Canyon Ferry Area; Missouri Headwaters; Gallatin Valley; Northwest Beaverhead County; Gallatin and Madison County Mountains and Centennial Mountains

* WHAT...Visibility below a quarter of a mile at times in dense fog. * WHERE...Portions of central, north central, and southwest Montana. * WHEN...Until 11 AM MDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

Special Weather StatementModerate · Expected · Observed

25 0549Z to 25 1115Z

Missouri Headwaters; Madison River Valley; Gallatin Valley; Northwest Beaverhead County; Beaverhead and Western Madison below 6000ft; Ruby Mountains and Southern Beaverhead Mountains; Gallatin and Madison County Mountains and Centennial Mountains

Patchy dense fog is developing over portions of Southwest MT early this morning. Visibility is below a half mile in some areas. Those traveling early this morning should be alert for quickly changing visibility conditions. Reminder, reduce your driving speeds in areas of poor visibility.

Alerts from the National Weather Service. For situational awareness only; always confirm against an official briefing.

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 132° at 4 kt, temperature 5.56C. This observation is older than usual, so treat it with extra caution. Treat this as supplemental, not an aviation observation. Forecast suggests sunday areas of fog then sunny, high near 46F, low near 19F, 0% chance of precipitation. Key risks: strong winds in the forecast.

PILOT WEATHER NOTES

Strong winds in the forecastWeather.gov

Tuesday: winds up to 27 kt. Re-check crosswind components closer to departure.

Day	Conditions	Temp F	Wind	Gusts	Precip	Pilot note
Sunday	Areas Of Fog then Sunny	46/19	NNW 2 kt	–	0%
Monday	Partly Sunny	50/26	0 kt	–	85%
Tuesday	Chance Rain And Snow then Partly Sunny	48/20	SW 15 kt	27 kt	48%	Strong winds in the forecast
Wednesday	Sunny	49/21	SSW 1 kt	–	2%
Thursday	Partly Sunny then Slight Chance Light Rain	48/21	0 kt	–	36%
Friday	Chance Rain And Snow	44/20	0 kt	–	50%
Saturday	Chance Rain And Snow	43	0 kt	–	25%

Source: National Weather Service (office TFX). Forecast issued 1049Z.

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

1 runway

WIND

No on-field weather data

No reporting weather station on the field, so wind components cannot be computed. See nearby stations below.

RUNWAYS

Runway detail & declared distances

1 runway · longest 5,100 ft

03/21

Dimensions

5,099 x 60 ft

Surface

Asphalt (good)

Edge lights

MED

RWY 0340°T

REILYes

VGSIPAPI (P2L)

RWY 21220°T

REILYes

VGSIPAPI (P2L)

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

FIELD CONDITIONS

Field elevation

4,089 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset

0025Z 6:25 PM

Sunrise

1356Z 7:56 AM

Loggable night

0055Z (6:55 PM local) → 1325Z (7:25 AM local)

end of evening to start of morning civil twilight

Position lights required

0025Z (6:25 PM local) → 1356Z (7:56 AM local)

sunset to sunrise (91.209)

Night passenger currency

0125Z (7:25 PM local) → 1256Z (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

Three Forks Airport is in Three Forks, Montana. Field elevation 4,089 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT

OwnershipPublicly owned

UseOpen to the public

TypeSmall airport

ManagerNICK BILTON

Manager phone406-570-0803

AttendedContinuous (24 hours)

CHARTS & AIRSPACE

ICAO / IATAK9S5

SectionalGREAT FALLS

Center (ARTCC)SALT LAKE CITY

Flight service (AFSS)GREAT FALLS

RegionMontana

CountryUnited States

Coordinates45.8781, -111.5690

Distance from city1 NM SE

SERVICES & LIGHTING

Fuel100LL

Control towerNon-towered

Field lightingSee remarks

BeaconSunset to sunrise · White-green (lighted land airport)

CTAF122.800

UNICOM122.800

FREQUENCIES

Communications

122.8

CTAF/UNICOM

UNIC

122.800

CTAF

122.800

UNICOM

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

AIRCRAFT ACTIVITY

K9S5 traffic patterns

2026-07-31 to 2026-10-16, 6 days observed · data 2026-10-23

Low confidence

TRAFFIC VOLUME (30-DAY)

AVG LANDINGS/DAY

AVG OPS/DAY

5.3

Operations trend (3 days)

Busiest day: Thu · Busiest month: Sep

FLEET MIX

Piston single 79%Unknown 21%

Mostly small piston aircraft.

TOP AIRCRAFT TYPES

›C172 (Piston single) · ~6 landings/mo

›P28A (Piston single) · ~2 landings/mo

›SLG2 (Unknown) · ~1 landings/mo

›UNKN (Unknown) · ~1 landings/mo

›C150 (Piston single) · ~0 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

K9S5 has no on-field report. Nearest reporting station: KBZN (18 NM E, LIFR).

KBZN Bozeman Yellowstone International Airport

18 NM E

LIFR

KBTM Bert Mooney Airport

39 NM W

VFR

KHLN Helena Regional Airport

IFR

VFR

VFR

KWYS Yellowstone Airport

74 NM S

LIFR

AIRPORT REMARKS

Operational remarks

›AUTOMATED UNICOM.

›ACTVT REILS RWY 03 & 21; PAPI RWY 03 & 21; MIRL RWY 03/21 - CTAF

›UPON DEPARTURE, ALL ACFT MUST REACH 500 FT ALTITUDE PRIOR TO MAKING ANY TURNS.

›OCCASIONAL AEROBATIC MANEUVERS INVOF ARPT.

›ULTRALIGHT ACTIVITY ON & INVOF ARPT.

›ARPT ESTAB PRIOR TO 1959.

›FUEL 24 HR CREDIT CARD SVC AVBL.

›FOR CD CTC BIG SKY APCH AT 208-364-5860/5861, IF UNABLE CTC SALT LAKE ARTCC AT 801-320-2568.

OFFICIAL LINKS & SOURCES

↗Search NOTAMs (official FAA NOTAM Search)

↗Wikipedia

↗K9S5 on OurAirports

FREQUENTLY ASKED

Does K9S5 have a METAR?

Yes. K9S5 is a METAR-reporting station; the current observation loads live on this page.

Does K9S5 have a TAF?

When K9S5 issues a TAF, its decoded forecast timeline loads live on this page; otherwise use the nearest TAF-issuing field as a planning reference.

What is the field elevation at K9S5?

K9S5 sits at 4,089 ft MSL, which factors into the density-altitude estimate on this page.

Is this an official preflight weather briefing for K9S5?

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.