WxDecoder

K46U METAR Alpine Airport

Alpine, WyomingElevation 5,634 ftSmall airport
CURRENT STATUS
VFR6 min old
Ceiling 6,000 ft, visibility 10 SM.
FLIGHT CATEGORY
VFR
ceiling & visibility
WIND
Calm
no steady wind
VISIBILITY
10 SM
16.1 km
CEILING
6,000 ft
lowest BKN/OVC
DENSITY ALT
5,332 ft
-302 ft vs field
CURRENT METAR

Decoded observation

Observed 0515Z (11:15 PM local) · 6 min old

K46U is currently VFR. Winds are calm. Visibility is 10 statute miles. The ceiling is 6,000 feet AGL.

WIND
Calm
No steady wind.
VISIBILITY
10 statute miles
16.1 km, good.
CEILING & SKY
Ceiling 6,000 ft
Lowest broken or overcast layer.
TEMP / DEWPOINT
4°C / 3°C
39°F / 37°F. 1°C spread.
ALTIMETER
30.24 inHg
1024 hPa, above standard.
WEATHER & HAZARDS
No significant hazards
No precipitation or obscuration reported.

Codes in this report: AUTO BKN RMK

Hover or tap any group for a plain-English explanation.

REMARKS: DECODED
A01
automated station (A01, equivalent to AO1)
SUGGESTED RISK · TRAINING USE

Suggested risk level: Low

›No TAF available for this airport.

A suggested risk level for training and situational awareness only, not a go/no-go authority. Verify with official sources and apply your personal minimums.

FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

Current aviation conditions show flight category VFR, wind calm, visibility 10 SM, ceiling 6,000 ft. Forecast suggests tonight partly cloudy, low near 30F, 7% chance of precipitation. Key risks: high density altitude.

PILOT WEATHER NOTES
High density altitudeMETAR
Density altitude about 5,332 ft (field elevation 5,634 ft). Expect reduced climb performance and a longer takeoff roll.
DayConditionsTemp FWindGustsPrecipPilot note
Tonight Partly Cloudy 30 ESE 6 kt – 7%
Monday Mostly Sunny 57/29 SSE 7 kt – 86%
Tuesday Slight Chance Snow Showers then Mostly Cloudy 43/25 SW 10 kt – 26%
Wednesday Chance Snow Showers 48/26 S 4 kt – 28%
Thursday Partly Sunny then Slight Chance Rain Showers 53/30 SE 5 kt – 47%
Friday Rain And Snow Showers Likely 50/30 SSE 4 kt – 68%
Saturday Rain And Snow Showers Likely 51/29 S 1 kt – 67%
Sunday Chance Snow Showers 51 SE 3 kt – 59%

Source: National Weather Service (office RIW). Forecast issued 0521Z.

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 · crosswind ranking
NESW1331CALMCALMCALMCALMCALM
WIND USED
Wind calm or variable
Crosswind ranking is unavailable until the wind has a steady direction.
Components are estimates from the current METAR wind and runway heading. Verify with the Chart Supplement and NOTAMs.
RUNWAYS

Runway detail & declared distances

1 runway · longest 5,827 ft

13/31
Dimensions
5,827 x 70 ft
Surface
Asphalt (good)
Edge lights
MED
RWY 13142°T
VGSIPAPI (P2L)
Traffic patternRight
RWY 31322°T
Displaced threshold466 ft

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

FIELD CONDITIONS

Performance & density altitude

Density altitude
5,332 ft
Pressure altitude
5,314 ft
Field elevation
5,634 ft MSL
Temperature
4°C (39°F)
Dewpoint
3°C (37°F)
Altimeter
30.24 inHg

Density altitude estimates how the aircraft performs versus standard atmosphere. Higher density altitude reduces climb performance and increases takeoff distance.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0025Z 6:25 PM
Sunrise
1351Z 7:51 AM
Loggable night
0055Z (6:55 PM local) → 1322Z (7:22 AM local)
end of evening to start of morning civil twilight
Position lights required
0025Z (6:25 PM local) → 1351Z (7:51 AM local)
sunset to sunrise (91.209)
Night passenger currency
0125Z (7:25 PM local) → 1251Z (6:51 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

Alpine Airport is in Alpine, Wyoming. Field elevation 5,634 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPrivately owned
UseOpen to the public
TypeSmall airport
ManagerISAAC MILLER
Manager phone307-699-0085
AttendedUNATNDD
CHARTS & AIRSPACE
ICAO / IATAK46U
SectionalSALT LAKE CITY
Center (ARTCC)SALT LAKE CITY
Flight service (AFSS)CASPER
RegionWyoming
CountryUnited States
Coordinates43.1819, -111.0387
Distance from city1 NM NW
SERVICES & LIGHTING
Fuel100LL · Jet A
Control towerNon-towered
Field lightingSee remarks
CTAF122.900
FREQUENCIES

Communications

122.9
CTAF
CTAF

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

AIRCRAFT ACTIVITY

Traffic patterns

Aircraft activity data is not available for this airport yet.

NEARBY AIRPORTS

Weather reference stations

Current flight category at nearby reporting stations.

KAFO Afton Municipal Airport
29 NM S
VFR
KJAC Jackson Hole Airport
29 NM NE
VFR
KIDA Idaho Falls Regional Airport
49 NM NW
VFR
KRXE Rexburg Madison County Airport
51 NM NW
VFR
KBPI Miley Memorial Field
54 NM SE
VFR
KPNA Ralph Wenz Field
59 NM SE
VFR
AIRPORT REMARKS

Operational remarks

›24 HR SELF SVC FUEL AVBL WITH CREDIT CARD; FULL SVC JET A & AVGAS ALSO AVBL ARNGD IN ADVN PHONE 307-654-4646.
›ARPT CLSD NGTS
›PRKG FEES BASED ON SIZE OF ACFT WILL APPLY.
›NOISE SENS ARPT WX PMTG LND RWY 13 TKOF RWY 31 FOR NOISE ABATEMENT; DUE TO THE PROXIMITY OF THE TOWN OF ALPINE & ARPT HOUSING; TOUCH & GOES ARE PROHIBITED.
›AVOID LOW LEVEL FLT OVER CITY OR EAST OF RWY,
›+3 FT VEGETATION & +5 FT DROP 60 FT FROM RWY END ACRS BOTH SIDES OF CNTRLN.
›16 FT PAVED ROAD 106 FT FM RWY END CROSSES RWY END.
›TSNT TFC MUST CTC THE AMGR FOR INFO ON UNIQUE LCL FLYING OPNS BFR USING THE ARPT.
›ACTVT PAPI RWY 13; MIRL RWY 13/31 - CTAF
›RWY 13/31 FENCES, BLDGS & TREES WI 150 FT N & S OF CNTRLN.
›VRB RWY COND AND BA WINTER MOS. SNBNK ALG RWY & TWY EDGES POSS FALL, WINT, SPRING MOS. TREACHEROUS MTN TERR IN CLOSE PROXIMITY ALL QUADS OF RWY.
›FOR RWY COND IN WINTER CTC - AMGR.
›FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
›VOLUNTARY CURFEW DUSK TO DAWN. NGT LDGS LMTD TO AIRPARK RESIDENTS ONLY. NGT TIME LDGS AND TKFS NOT ADVS TO PILOTS UNFAMILIAR WITH TRRN. WILDLIFE ON AND INVOF OF ARPT. BIRD/WATERFOWL HAZ.
›RESIDENTIAL TWYS ESTAB THEIR OWN WT LMTS & RQR APVL PRIOR TO USE.
›FEES IMPOSED FOR LDG OVNGT OR EXTDD STAY PRKG. RAMP & PRKG SPACE VERY LTD SPCLY IN THE WINTER.
›RWY 31 FM DSPLCD THLD 20:1 TO 45 FT TREE 480 FT EOR 75 FT L.
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗K46U on OurAirports
FREQUENTLY ASKED
Does K46U have a METAR?
Yes. K46U has a current METAR observation, decoded into plain English on this page.
Does K46U have a TAF?
When K46U 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 K46U?
K46U sits at 5,634 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for K46U?
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.