US-1274 Weather Ottertail Lake Airport

Three Forks, MontanaElevation 4,155 ftSmall airport

OFF-FIELD REFERENCE

Nearest report: KBZN · 23 NM E · More than 1 hour old

Ceiling 400 ft, visibility 9 SM.

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

OFF-FIELD REFERENCE · KBZN

WIND

020@5

steady

VISIBILITY

9 SM

14.5 km

CEILING

400 ft

lowest BKN/OVC

ACTIVE NWS ALERTS

Active weather alerts

Dense Fog AdvisoryModerate · Expected · Likely

25 1905Z to 26 1800Z

Elkhorn and Boulder Mountains; Canyon Ferry Area; Missouri Headwaters; Madison River Valley; Gallatin Valley; Northwest Beaverhead County; Beaverhead and Western Madison below 6000ft; Gallatin and Madison County Mountains and Centennial Mountains

* WHAT...Variable visibility down to a quarter mile or less in dense fog. * WHERE...Canyon Ferry Area, Elkhorn and Boulder Mountains, Beaverhead and Western Madison below 6000ft, Gallatin Valley, Gallatin and Madison County Mountains and Centennial Mountains, Madison River Valley, Missouri Headwaters, and Northwest Beaverhead County. * WHEN...Until noon MDT Monday. * IMPACTS...Low visibility co…

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

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 tonight areas of fog, low near 18F, 0% chance of precipitation. Key risks: strong winds in the forecast.

PILOT WEATHER NOTES

Strong winds in the forecastWeather.gov

Tuesday: winds up to 26 kt. Re-check crosswind components closer to departure.

Day	Conditions	Temp F	Wind	Gusts	Precip	Pilot note
Tonight	Areas Of Fog	18	0 kt	–	0%
Monday	Areas Of Fog then Mostly Cloudy	50/26	0 kt	–	85%
Tuesday	Chance Light Snow then Mostly Sunny	50/19	WSW 15 kt	26 kt	39%	Strong winds in the forecast
Wednesday	Sunny	50/20	SSW 4 kt	–	4%
Thursday	Mostly Sunny	49/20	0 kt	–	16%
Friday	Chance Light Snow	44/20	0 kt	–	35%
Saturday	Slight Chance Light Snow	46/20	0 kt	–	23%
Sunday	Chance Light Rain	48	0 kt	–	38%

Source: National Weather Service (office TFX). Forecast issued 0358Z.

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-1274. Enter a runway number or heading to estimate wind components.

RUNWAYS

Runway detail & declared distances

1 runway · longest 1,852 ft

08/26

Dimensions

1,852 x 30 ft

Surface

Turf

RWY 08

Traffic patternRight

RWY 26

Traffic patternRight

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

FIELD CONDITIONS

Field elevation

4,155 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset

0024Z 6:24 PM

Sunrise

1358Z 7:58 AM

Loggable night

0054Z (6:54 PM local) → 1327Z (7:27 AM local)

end of evening to start of morning civil twilight

Position lights required

0024Z (6:24 PM local) → 1358Z (7:58 AM local)

sunset to sunrise (91.209)

Night passenger currency

0124Z (7:24 PM local) → 1258Z (6:58 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

Ottertail Lake Airport is in Three Forks, Montana. Field elevation 4,155 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT

OwnershipPublicly owned

UsePrivate use

TypeSmall airport

ManagerMATTHEW NISTLER

Manager phone406 581 6998

CHARTS & AIRSPACE

ICAO / IATAUS-1274

SectionalGREAT FALLS

Center (ARTCC)SALT LAKE CITY

Flight service (AFSS)GREAT FALLS

RegionMontana

CountryUnited States

Coordinates45.8189, -111.6959

Distance from city8 NM SW

SERVICES & LIGHTING

Control towerNon-towered

AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

US-1274 has no on-field report. Nearest reporting station: KBZN (23 NM E, LIFR).

KBZN Bozeman Yellowstone International Airport

23 NM E

LIFR

KBTM Bert Mooney Airport

34 NM W

VFR

KHLN Helena Regional Airport

VFR

IFR

VFR

KWYS Yellowstone Airport

72 NM S

VFR

AIRPORT REMARKS

Operational remarks

›OWNER DESIRES CHARTING.

OFFICIAL LINKS & SOURCES

↗Search NOTAMs (official FAA NOTAM Search)

↗US-1274 on OurAirports

FREQUENTLY ASKED

Does US-1274 have a METAR?

No on-field METAR is issued for US-1274. This page uses the nearest reporting station as a reference.

Does US-1274 have a TAF?

No TAF is issued directly for US-1274. Use the nearest TAF-issuing field as a planning reference.

What is the field elevation at US-1274?

US-1274 sits at 4,155 ft MSL, which factors into the density-altitude estimate on this page.

Is this an official preflight weather briefing for US-1274?

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.