WxDecoder

US-1000 Weather Jefferson River Airport

Twin Bridges, MontanaElevation 4,580 ftSmall airport
OFF-FIELD REFERENCE
Nearest report: KBTM · 22 NM N · 6 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 · KBTM
WIND
140@6
steady
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer
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 current METAR is available for this airport, so there is no observed aviation report to summarize. Forecast suggests this afternoon patchy fog, high near 41F, low near 23F, 0% chance of precipitation. Key risks: strong winds in the forecast.

PILOT WEATHER NOTES
Strong winds in the forecastWeather.gov
Tuesday: winds up to 25 kt. Re-check crosswind components closer to departure.
DayConditionsTemp FWindGustsPrecipPilot note
This Afternoon Patchy Fog 41/23 NNE 6 kt – 0%
Monday Patchy Fog then Partly Sunny 53/29 SSW 6 kt – 85%
Tuesday Chance Light Snow then Partly Sunny 47/23 SW 14 kt 25 kt 27% Strong winds in the forecast
Wednesday Sunny 48/24 SSW 13 kt 25 kt 6%
Thursday Mostly Sunny 49/25 SSW 7 kt – 13%
Friday Chance Light Snow 47/24 WSW 8 kt – 38%
Saturday Chance Rain And Snow 48/25 SW 5 kt – 27%

Source: National Weather Service (office TFX). Forecast issued 2259Z.

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-1000. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail

16/34
Dimensions
2,000 x 100 ft
Surface
Turf
FIELD CONDITIONS

Field elevation

Field elevation
4,580 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0027Z 6:27 PM
Sunrise
1400Z 8:00 AM
Loggable night
0057Z (6:57 PM local) → 1329Z (7:29 AM local)
end of evening to start of morning civil twilight
Position lights required
0027Z (6:27 PM local) → 1400Z (8:00 AM local)
sunset to sunrise (91.209)
Night passenger currency
0127Z (7:27 PM local) → 1300Z (7:00 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

Jefferson River Airport is in Twin Bridges, Montana. Field elevation 4,580 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
TypeSmall airport
CHARTS & AIRSPACE
ICAO / IATAUS-1000
RegionMontana
CountryUnited States
Coordinates45.6090, -112.3280
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-1000 has no on-field report. Nearest reporting station: KBTM (22 NM N, VFR).

KBTM Bert Mooney Airport
22 NM N
VFR
KDLN Dillon Airport
23 NM SW
IFR
KBZN Bozeman Yellowstone International Airport
50 NM E
LIFR
KHLN Helena Regional Airport
62 NM N
VFR
KSMN Lemhi County Airport
72 NM SW
VFR
KWYS Yellowstone Airport
75 NM SE
VFR
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗US-1000 on OurAirports
FREQUENTLY ASKED
Does US-1000 have a METAR?
No on-field METAR is issued for US-1000. This page uses the nearest reporting station as a reference.
Does US-1000 have a TAF?
No TAF is issued directly for US-1000. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at US-1000?
US-1000 sits at 4,580 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for US-1000?
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.