Castle (KMER)
Towered public-use airport serving Atwater, California, at 190 ft elevation.
Elevation190 ft
ControlTowered
Longest runway11,802 ft
Magnetic variation15° E
Live weather
Forecast (TAF)
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Frequencies
| ATIS | 124.475 |
|---|---|
| CTAF | 118.175 |
| UNICOM | 122.95 |
| Ground | 133.575 |
| Tower | 118.175 |
| Approach/Departure | 120.95 Norcal |
Runways
| Runway | Size | Surface | Lights |
|---|---|---|---|
| 13/31 | 11,802 × 150 ft | Asphalt / Concrete | High intensity |
Fuel: 100LL, A, A1. Sectional: San Francisco.
Nearby airports
KMCEMerced Yosemite Regional6 NM SEO15Turlock Municipal9 NM NW3O1Gustine20 NM W2O6Chowchilla22 NM SEKMODModesto City-County-Harry Sham Field24 NM NWKLSNLos Banos Municipal24 NM SW
Before you fly here
- Read the FAA Chart Supplement entry for MER: traffic pattern, CTAF/UNICOM, hours, fuel and remarks.
- Check NOTAMs and get a weather briefing at 1800wxbrief.com.
- Study the airport diagram and the sectional around KMER for airspace and terrain.
- More detail: AirNav · SkyVector
Airport data from the FAA National Airspace System Resource (NASR) subscription effective Oct 1, 2026; magnetic variation as published for 2000. Weather is live from aviationweather.gov. Always confirm with current official sources before flight. This guide is a study aid.