Airports › California › KNSI
KNSI — San Nicolas Island Nolf
San Nicolas Island, CA · field elevation 506 ft · Class D airspace · ATCT
1 AIRMET & SIGMET Read in the EFB →
KNSI current weather
IFR ceiling 500–1,000 ft or visibility 1–3 statute miles
METAR KNSI 111153Z AUTO 29005KT 10SM OVC007 17/15 A2997 RMK AO2 SLP142 T01670150 10167 20161 53001
- Wind
- from 290° at 5 kt
- Visibility
- 10 statute miles
- Sky
- ceiling 700 ft AGL
- Temperature
- 17 °C / dewpoint 15 °C
- Altimeter
- 29.97 inHg
- Density altitude
- 765 ft · pressure altitude 456 ft
- Observed
- 25 minutes ago
Wind on each runway
Wind 290° at 5 kt. Positive is a headwind; the crosswind side is the one you hold into.
| Runway | Head / tail | Crosswind |
|---|---|---|
| 30 | 5 kt head | 2 kt from the left |
| 12 | 5 kt tail | 2 kt from the right |
48-hour trend
Eight days of observations, each readable in full — in the EFB →
Calculators: density altitude, pressure altitude, cloud base, crosswind
Forecast
No TAF is issued for KNSI — forecasters write them for about 700 US terminals, and this is not one.
MOS model forecasts for KNSI — in the EFB →
Airport information
- Coordinates
- 33.23978, -119.45821
- Elevation
- 506 ft MSL
- Surface airspace
-
Class D
Two-way radio communication must be established before you enter, while the tower is open.
The same callsign rule as Class C. When the tower closes the airspace usually reverts to Class E, or to Class G where no surface area is charted — the Chart Supplement entry says which, and the hours are on the sectional. A surface area normally extends to 2,500 ft above the field, with the ceiling charted in a dashed blue box as a number in hundreds of feet.
- Sunrise / sunset
- 1318Z / 0248Z
- Tower hours
- 0700-1630 MON-FRI
- Magnetic variation
- 12° (2020)
- Sectional
- Los Angeles
- County
- Santa Cruz, CA
Airport diagram
Everything else KNSI publishes — in the EFB →
Runways
| Runway | Length (ft) | Width (ft) | Surface | Lights |
|---|---|---|---|---|
| 12/30 | 10,002 | 200 | PEM | HIGH |
Frequencies
- Tower 0700-1630 MON-FRI
- 126.85
Nearby airports
- KNUC San Clemente Island Nalf46 nm
- KAVX Catalina53 nm
- KNTD Point Mugu NAS (Naval Base Ventura Co)55 nm
- KOXR Oxnard59 nm
Elsewhere
- Make a poster of the KNSI airport diagram or an approach plate
- Other California airports
- How to read a METAR
- What VFR, MVFR, IFR and LIFR actually mean
- Live records — the strongest winds and lowest ceilings in the country right now
Weather from METAR and TAF, National Weather Service Aviation Weather Center. Airport, runway, frequency and procedure data from the FAA NASR 28-day cycle; charts from the FAA d-TPP. Advisory only — this is not a weather briefing.