Castle Airport (KMER) Area Aviation Weather & Runway Winds
As of 8:53 AM PDT, Oct 28, based on the nearest station (KMCE), KMER is currently VFR with winds from 330° at 7 knots, visibility 10+ statute miles, and no ceiling reported.
Aviation weather near Castle Airport in Merced, CA, decoded from the nearest reporting station (KMCE): conditions and runway crosswinds.
Castle Airport (KMER) is a regional airport serving Merced, CA at a field elevation of 190 ft. KMER has no weather station of its own. Conditions here are decoded from KMCE, about 6 nm away, the nearest reporting station, and local conditions can differ. It has one runway (13/31), the longest 11,802 ft. The official FAA airport diagram is at the bottom of the page.
No weather station at this airport: showing the nearest station KMCE, 6.3 nm away.
Wind from the north-northwest (330°) at 7 kt, visibility 10+ statute miles, no cloud data, temperature 11°C (52°F), altimeter 30.02 inHg. Conditions are Visual Flight Rules (VFR).
METAR KMCE 281553Z AUTO 33007KT 10SM CLR 11/09 A3002 RMK AO2 SLP165 T01110089
What changed at KMCE (nearest station)?
Since the 1453Z (7:53 AM PDT) report, compared automatically against the latest METAR.
- Pressure rising: altimeter 30.00 → 30.02 inHg.
- Temperature up 3°C.
Current pilot readout for KMER
Based on the nearest station (KMCE), KMER is currently VFR with winds from 330° at 7 knots, visibility 10+ statute miles, and no ceiling reported. the wind favors northwest-facing runway ends (31). Density altitude is approximately -350 ft (field elevation 190 ft). Review the latest TAF below for forecast changes before departure.
New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →
Runway wind check
Estimated head/tailwind and crosswind for each runway end from the current reported wind.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 31FAV | 11,802 ft | PEM | 7 kt head | 1 kt right |
| 13 | 11,802 ft | PEM | 7 kt tail | 1 kt left |
Open the crosswind calculator to try your own wind and runway numbers →
KMER runways
1 physical runway · 2 runway ends. Each card opens the runway's intelligence page: equipment and lighting, LAHSO, frequencies, today's configuration, predicted use, history and approaches.
- Status not monitoredRunway 13/3111,802 × 150 ft · PEMCurrent useno stated-runway source at KMERWind
- 13
- 7 kt tailwind · 1 kt crosswind from left
- 31
- 7 kt headwind · 1 kt crosswind from right
no active equipment NOTAM receivedView Runway Intelligence →
“Current use” is what the facilitystates; wind components are arithmetic on the current METAR against TRUE headings; status reflects NOTAMs received through SWIM, the tower's TFDM record and the D-ATIS — a runway reads “Open” only with a complete NOTAM picture.
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 23 h: wind 5→7 kt, ceiling unlimited → unlimited.
KMER weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap
NOAA NEXRAD composite and lightning, updated about every five minutes; amber frames are HRRR model guidance, not observed radar. Not for navigation.
Pilot reports (PIREPs) within 100 NM of KMER
Reported by pilots in flight over the past 6 hours, via aviationweather.gov.
Show raw report
VIS UA /OV TTE276022 /TM 1601 /FL380 /TP B38M /SK SCT-BKN380-TOP390 /TA M63 /WV 25034KT /RM PRODUCED BY SKYPATH
VIS UAHeader: reporting station and UA: a routine pilot report.OV TTE276022Location: fix or navaid, optionally with a radial and distance in NM.TM 1601Reported at 16:01 UTC.FL380Altitude: 38,000 ft MSL.TP B38MAircraft type reporting.SK SCT-BKN380-TOP390Sky condition: cloud bases and tops in hundreds of feet MSL.TA M63Outside air temperature, °C.WV 25034KTWind (direction/speed) or wind-shear remarks.RM PRODUCED BY SKYPATHRemarks.⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.
Recent aviation weather trends at KMER
From ATIS Alerts' hourly weather history.
Over the past 24 hours, the nearest station KMCE reported mostly VFR across 24 observations, with 0 flight-category changes. Wind most often came from the NW.
Most recent change: IFR → VFR
Share of hours each runway had the most headwind. From wind reports, not ATC assignments.
- 31
- 86%
- 13
- 14%
TAF | Terminal Aerodrome Forecast
Issued 1120Z (4:20 AM PDT)
TAF KMCE 281120Z 2812/2912 VRB06KT P6SM SKC
New to TAFs? How to read one →
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Live crosswind meter
KMER's AWOS-3 isn't in the national weather feed, so the wind comes from KMCE, 6.3 nm away.
Wind is 10° off runway 31, the end with the most headwind right now.
KMER's AWOS isn't online yet. Help us share it with pilots: we'll show your field's live wind and crosswind on this page, free. Share your AWOS →Concrete · 11,802 ft. Headings from FAA runway data. Not for navigation.
Field aerial
North up
Runway 13/31 drawn from FAA threshold coordinates.
Imagery: USGS The National Map (public domain). Something off? ✏️ Suggest an edit
Airport info
From the FAA airport record (cycle 2026-10-01) and OurAirports.
Services
- Fuel
- 100LL · Jet A · Jet A-1
- Attended
- Mon-Fri 0800-1700 local
- Repairs
- Airframe & engine, minor
- Transient parking
- Tie-downs · Hangars
- Landing fee
- No
- Control tower
- Yes
- Wind indicator
- Lighted
Airport
- Type
- Regional airport
- ICAO
- KMER
- IATA
- MER
- FAA LID
- MER
- City
- Merced
- State
- California
- Country
- United States
- Elevation
- 190 ft
- Coordinates
- 37.3805, -120.5680
- Runways
- 1 physical runway · 2 runway ends
- Longest runway
- 11,802 ft
- Weather reporting
- On-field AWOS-3, not in the national feed (using KMCE)
- TAF
- Nearest KMCE
- AWOS/ASOS
- 124.475 MHz
- Time zone
- America/Los_Angeles
- Sunset in
- 8h 24m
Run a flight school, FBO, or club here? Embed KMER's live status on your website, free →
Nearby airports
Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.
Within 25 NM
10 airports+4 more within 25 NM
25–50 NM
6 airports50–100 NM
8 airports+2 more within 100 NM
RC flying fields nearby
AMA model-aircraft club fields around this airport: live wind, crosswind & flyability on each page.
- Merced County RC Club -S Bert Crane Rd , Atwater, CA · 8 mi
- Turlock RC Club - Turlock Airpark , Turlock, CA · 16 mi
- Turlock RC Club - Lake McSwain Recreation Area , Hornitos, CA · 17 mi
KMER airport diagram
Official FAA taxiway and runway layout. Tap to zoom.
Official FAA airport diagram · d-TPP cycle 2611 · Not for navigation. Download the official FAA PDF ↗
Customize your MER shirt or mug
MER's real runway layout on the back, elevation and tower frequency on the front. Add your tail number on the sleeve.
Pilot PIREPs for Castle Airport (KMER)
Community-submittedCommunity-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.
Read recent community-submitted pilot notes for Castle Airport, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.
⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.
No Pilot PIREPs have been submitted for KMER yet. Recently flew here? Help the next pilot by leaving a quick airport note.
Pilot PIREPs are community pilot notes for situational awareness only, not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.
⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
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