WxDecoder
US-12721

Big Flat Airport

Carmen, IdahoElevation 3,805 ftSmall airport
CURRENT STATUS
N/A
No on-field METAR. See nearby reporting stations below.
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 thursday sunny, high near 84F, low near 47F, 1% chance of precipitation. Key risks: strong winds in the forecast; thunderstorms in the forecast.

PILOT WEATHER NOTES
Strong winds in the forecastWeather.gov
Thursday: winds up to 25 kt. Re-check crosswind components closer to departure.
Thunderstorms in the forecastWeather.gov
Sunday: Light Rain Likely then Showers And Thunderstorms Likely. Watch for developing convection and plan alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Thursday Sunny 84/47 SW 13 kt 25 kt 1% Strong winds in the forecast
Friday Mostly Sunny 78/45 NNW 7 kt 17 kt 3%
Saturday Mostly Sunny 80/46 SE 5 kt – 58%
Sunday Light Rain Likely then Showers And Thunderstorms Likely 62/38 NW 11 kt – 68% Thunderstorms in the forecast
Monday Mostly Sunny 65/38 SSW 3 kt – 5%
Tuesday Sunny 70/42 ESE 3 kt – 1%
Wednesday Mostly Sunny 72 N 3 kt – 6%

Source: National Weather Service (office MSO). Forecast issued 1019Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

OUR HEADSET PICK · NOT SPONSORED

DC

David Clark DC ONE-X

Not sponsored, just the headset we'd buy ourselves: the DC ONE-X, with hybrid noise cancelling, Bluetooth, and 30+ hour battery. And David Clark's A+ customer service is the real reason we recommend them.

Visit David Clark
RUNWAYS & WIND
Crosswind calculator
No runway layout is available for US-12721. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail & declared distances

1 runway · longest 1,973 ft

01/19
Dimensions
1,973 x 40 ft
Surface
Turf (fair)
RWY 01
Traffic patternRight
RWY 19

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
3,805 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0158Z 7:58 PM
Sunrise
1307Z 7:07 AM
Loggable night
0228Z (8:28 PM local) → 1237Z (6:37 AM local)
end of evening to start of morning civil twilight
Position lights required
0158Z (7:58 PM local) → 1307Z (7:07 AM local)
sunset to sunrise (91.209)
Night passenger currency
0258Z (8:58 PM local) → 1207Z (6:07 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

Big Flat Airport is in Carmen, Idaho. Field elevation 3,805 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UsePrivate use
TypeSmall airport
ManagerKEVIN M. LEE
Manager phone208-313-3803
CHARTS & AIRSPACE
ICAO / IATAUS-12721
SectionalGREAT FALLS
Center (ARTCC)SALT LAKE CITY
Flight service (AFSS)BOISE
RegionIdaho
CountryUnited States
Coordinates45.2785, -113.9013
Distance from city3 NM N
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Nearby airports

US-7561 Flying Coyote Ranch Airport
3 NM SE
8ID8 Lewis and Clark Airstrip
5 NM N
0ID6 Steele Memorial Heliport
6 NM S
US-1217 40 Acre Airstrip
8 NM SE
KSMN Lemhi County Airport
9 NM S
US-3682 Indianola Forest Service Heliport
13 NM NW
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗US-12721 on OurAirports
FREQUENTLY ASKED
Does US-12721 have a METAR?
No on-field METAR is issued for US-12721. This page uses the nearest reporting station as a reference.
Does US-12721 have a TAF?
No TAF is issued directly for US-12721. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at US-12721?
US-12721 sits at 3,805 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for US-12721?
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.