ATIS Alerts

On the Rocks Airport (1CA6) Area Aviation Weather & Runway Winds

Aviation weather near On the Rocks Airport in Alpine, CA, decoded from the nearest reporting station (KSEE) — conditions, runway crosswinds, and free Telegram airport alerts.

On the Rocks Airport (1CA6) is a general aviation airport serving pilots in and around Alpine, CA at 2,650 ft. 1CA6 has no weather station of its own — conditions here are decoded from KSEE, about 13 nm away, the nearest reporting station, and local conditions can differ. Its 2 runways (15, 33) — longest 2,340 ft — are checked against the current wind in the crosswind table below. The nearest TAF is issued for KSAN. Track it in the ATIS Alerts Telegram bot to get alerts read from KSEE, the station this page is based on.

VFR
Observed 0247Z (7:47 PM PDT)live · refreshes every 60s

No weather station at this airport — showing the nearest station KSEE, 13.1 nm away.

Wind
220° 4 kt
Visibility
10+ sm
Ceiling
Unlimited
Altimeter
29.83"
Temp / Dew
24°C / 75°F
dew 18°C

Wind from the southwest (220°) at 4 kt, visibility 10+ statute miles, no cloud data, temperature 24°C (75°F), altimeter 29.83 inHg. Conditions are Visual Flight Rules (VFR).

Raw METAR
METAR KSEE 290247Z 22004KT 10SM SKC 24/18 A2983

What changed at KSEE (nearest station)?

Since the 0147Z (6:47 PM PDT) report — compared automatically against the latest METAR.

  • Pressure rising: altimeter 29.81 → 29.83 inHg.
  • Temperature down 3°C.

This is exactly what ATIS Alerts watches for you — get a Telegram message when 1CA6's weather changes, free →

Current pilot readout for 1CA6

Based on the nearest station (KSEE), 1CA6 is currently VFR with winds from 220° at 4 knots, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 15, about 3 knots. Density altitude is approximately 4,500 ft (field elevation 2,650 ft). 1CA6 does not publish a TAF — the nearest TAF station is KSAN, about 24 nm away.

⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →

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Runway wind check

Estimated head/tailwind and crosswind for each runway end from the current reported wind.

Use this section to quickly compare current wind alignment across available runways at 1CA6. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.

RunwayHead / TailCrosswind
15FAV3 kt tail3 kt left
333 kt tail3 kt left

Open the crosswind calculator — try your own wind and runway numbers →

24-hour trend

Wind, ceiling and flight category over the last 24 hours.

Wind (kt)Gusts (kt)Bottom strip — flight category:VFRMVFRIFRLIFRNo report
061203Z10Z02Z

Over the last 23 h: wind 04 kt, ceiling unlimitedunlimited.

1CA6 weather radar

Live NEXRAD + lightning, with a 4-hour future-radar forecast — drag to pan, tap ⚡ to toggle lightning.

Live weather radar around On the Rocks Airport in Alpine, CA: the NOAA/NWS NEXRAD composite updates about every five minutes, with NOAA lightning strike density overlaid. The loop plays the past 50 minutes, then continues into a future-radar forecast (+1 to +4 hours, NOAA HRRR model) so you can see where precipitation around 1CA6 is headed.

Loading…
Loading radar…

Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © OpenStreetMap © CARTO

Forecast frames (amber label) are HRRR model guidance, not observed radar. Lightning strike density appears as a blue-white glow when strikes are detected in view. Radar and lightning coverage are limited in parts of Alaska, Hawaii, and offshore areas. Not for navigation.

Pilot reports (PIREPs) within 100 NM of 1CA6

Reported by pilots in flight over the past 6 hours — via aviationweather.gov.

PIREP2232Z (3:32 PM PDT) · 54 NM NE of 1CA6 · 32,000 ft MSL · E75L
Show raw report
DAG UA /OV TRM130030/TM 2232/FL320/TP E75L/TB NEG/RM SMOOTH AWC-WEB
DAG UAHeader — reporting station and UA: a routine pilot report.
OV TRM130030Location — fix or navaid, optionally with a radial and distance in NM.
TM 2232Reported at 22:32 UTC.
FL320Altitude: 32,000 ft MSL.
TP E75LAircraft type reporting.
TB NEGTurbulence: none reported.
RM SMOOTH AWC-WEBRemarks.

⚠️ PIREPs are unverified pilot reports. Not for operational use — conditions change between reports.

Recent aviation weather trends at 1CA6

From ATIS Alerts' hourly weather history.

Over the past 24 hours, the nearest station KSEE reported mostly VFR across 45 observations, with 6 flight-category changes. The lowest ceiling was 800 ft. Wind most often came from the SW.

Last 24 hours
VFR 69%MVFR 16%IFR 16%
Wind avg/max: 3/10 kt
Max gust:
Lowest ceiling: 800 ft
Lowest vis:
Prevailing wind: SW
Category changes: 6

Most recent change: MVFRVFR

Last 7 days
VFR 90%MVFR 8%IFR 3%
Wind avg/max: 5/13 kt
Max gust: 17 kt
Lowest ceiling: 800 ft
Lowest vis: 5 sm
Prevailing wind: W
Category changes: 14

Most recent change: MVFRVFR

Active Runway - past 30 days
15/33
100%

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Nearby TFRs

Active FAA TFRs near 1CA6

FAA TFR data shows an active temporary flight restriction near 1CA6.

Security TFR
Chula Vista, CA
Active 9.5 NM from 1CA6
Effective: Saturday, February 14, 2026 through Friday, August 14, 2026 Local
NOTAM: 6/4160

View all active US TFRs → · Official FAA TFR ↗

Verify with official FAA TFR sources before flight.

Airport facts

Reference data from the OurAirports dataset.

Type
General aviation airport
FAA LID
1CA6
City
Alpine
State
California
Country
United States
Elevation
2,650 ft
Coordinates
32.7651, -116.7230
Runways
2
Longest runway
2,340 ft
Weather reporting
Nearest station KSEE
TAF
Nearest KSAN
Time zone
America/Los_Angeles
Next sunset
23h 5m

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Nearby airports

Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.

RC flying fields nearby

AMA model-aircraft club fields around this airport — live wind, crosswind & flyability on each page.

All RC flying fields →

See all California airports →

1CA6 weather — frequently asked

What runways are available at 1CA6?+

1CA6 has 2 runways — 15, 33; the longest is 2,340 ft. This page computes the live crosswind for each runway end from the current wind.

Where does the weather shown for 1CA6 come from?+

On the Rocks Airport does not have its own weather station. Conditions shown here come from the nearest reporting station, KSEE, about 13 nm away — close enough for situational awareness, but local conditions at 1CA6 can differ.

Does 1CA6 have a TAF?+

No — 1CA6 does not publish its own TAF. The nearest TAF station is KSAN, about 24 nm away.

Does 1CA6 broadcast D-ATIS?+

No — 1CA6 does not broadcast D-ATIS. Alerts for 1CA6 from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR (via the nearest reporting station) instead.

Pilot PIREPs for On the Rocks Airport (1CA6)

Community-submitted

Community-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.

Read recent community-submitted pilot notes for On the Rocks 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 1CA6 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.

From the ATIS Alerts team

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