WxDecoder

US-4021 Weather Miller Flat Airport

Whitethorn, CaliforniaSmall airport
OFF-FIELD REFERENCE
Nearest report: KACV · 51 NM N · 57 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 · KACV
WIND
080@4
steady
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer
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 223° at 1 kt, temperature 12.78C. This observation is older than usual, so treat it with extra caution. Treat this as supplemental, not an aviation observation. Forecast suggests today mostly cloudy, high near 58F, low near 50F, 69% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

DayConditionsTemp FWindGustsPrecipPilot note
Today Mostly Cloudy 58/50 W 3 kt – 69%
Monday Chance Light Rain 54/47 N 5 kt – 32%
Tuesday Sunny 55/48 N 7 kt – 0%
Wednesday Mostly Sunny 54/47 N 6 kt – 5%
Thursday Sunny 54/48 NNW 6 kt – 30%
Friday Chance Light Rain 54/48 N 3 kt – 30%
Saturday Chance Light Rain 54/48 NNW 2 kt – 34%

Source: National Weather Service (office EKA). Forecast issued 1650Z.

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-4021. Enter a runway number or heading to estimate wind components.
DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0122Z 6:22 PM
Sunrise
1439Z 7:39 AM
Loggable night
0150Z (6:50 PM local) → 1411Z (7:11 AM local)
end of evening to start of morning civil twilight
Position lights required
0122Z (6:22 PM local) → 1439Z (7:39 AM local)
sunset to sunrise (91.209)
Night passenger currency
0222Z (7:22 PM local) → 1339Z (6:39 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

Miller Flat Airport is in Whitethorn, California. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
TypeSmall airport
CHARTS & AIRSPACE
ICAO / IATAUS-4021
RegionCalifornia
CountryUnited States
Coordinates40.1262, -124.1699
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-4021 has no on-field report. Nearest reporting station: KACV (51 NM N, VFR).

KACV California Redwood Coast-Humboldt County Airport
51 NM N
VFR
KUKI Ukiah Municipal Airport
75 NM SE
VFR
KRBL Red Bluff Municipal Airport
88 NM E
VFR
KRDD Redding Municipal Airport
89 NM E
VFR
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗US-4021 on OurAirports
FREQUENTLY ASKED
Does US-4021 have a METAR?
No on-field METAR is issued for US-4021. This page uses the nearest reporting station as a reference.
Does US-4021 have a TAF?
No TAF is issued directly for US-4021. Use the nearest TAF-issuing field as a planning reference.
Is this an official preflight weather briefing for US-4021?
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.