WxDecoder

US-9146 Weather Usona Forest Fire Station Heliport

Mariposa, CaliforniaElevation 2,958 ftHeliport
OFF-FIELD REFERENCE
Nearest report: KMAE · 32 NM SW · More than 1 hour old
No ceiling, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KMAE
WIND
290@3
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 calm, temperature 6.11C. This observation is older than usual, so treat it with extra caution. Treat this as supplemental, not an aviation observation. Forecast suggests tonight partly cloudy, low near 50F, 0% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

DayConditionsTemp FWindGustsPrecipPilot note
Tonight Partly Cloudy 50 E 4 kt – 0%
Monday Sunny 68/47 S 4 kt – 0%
Tuesday Sunny 65/46 SW 4 kt – 0%
Wednesday Mostly Sunny 65/48 WSW 4 kt – 2%
Thursday Mostly Cloudy 63/45 W 4 kt – 8%
Friday Mostly Sunny 60/43 WSW 4 kt – 19%
Saturday Chance Light Rain 56/42 SW 4 kt – 43%
Sunday Chance Rain 55 W 4 kt – 42%

Source: National Weather Service (office HNX). Forecast issued 0155Z.

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-9146. Enter a runway number or heading to estimate wind components.
FIELD CONDITIONS

Field elevation

Field elevation
2,958 ft MSL

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

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0109Z 6:09 PM
Sunrise
1417Z 7:17 AM
Loggable night
0135Z (6:35 PM local) → 1351Z (6:51 AM local)
end of evening to start of morning civil twilight
Position lights required
0109Z (6:09 PM local) → 1417Z (7:17 AM local)
sunset to sunrise (91.209)
Night passenger currency
0209Z (7:09 PM local) → 1317Z (6:17 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

Usona Forest Fire Station Heliport is in Mariposa, California. Field elevation 2,958 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
TypeHeliport
CHARTS & AIRSPACE
ICAO / IATAUS-9146
RegionCalifornia
CountryUnited States
Coordinates37.4624, -119.7856
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-9146 has no on-field report. Nearest reporting station: KMAE (32 NM SW, VFR).

KMAE Madera Municipal Airport
32 NM SW
VFR
KMCE Merced Regional Macready Field
36 NM W
VFR
KMER Castle Airport
38 NM W
VFR
KFAT Fresno Yosemite International Airport
41 NM S
VFR
KFCH Fresno Chandler Executive Airport
44 NM S
VFR
KMMH Mammoth Yosemite Airport
46 NM E
VFR
OFFICIAL LINKS & SOURCES
↗Search NOTAMs (official FAA NOTAM Search)
↗US-9146 on OurAirports
FREQUENTLY ASKED
Does US-9146 have a METAR?
No on-field METAR is issued for US-9146. This page uses the nearest reporting station as a reference.
Does US-9146 have a TAF?
No TAF is issued directly for US-9146. Use the nearest TAF-issuing field as a planning reference.
What is the field elevation at US-9146?
US-9146 sits at 2,958 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for US-9146?
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.