St Helena Hospital Clearlake HeliportPrivate
CL53 · Clearlake, CA · Non-towered · Open on the map
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Weather
METAR observed
TAF forecast
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Sun & FAA night2026-09-21 · night begins 07:36 PM
| Event | Local (PDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:30 AM | 13:30Z |
| Sunrise | 06:57 AM | 13:57Z |
| Sunset | 07:09 PM | 02:09Z |
| Evening civil twilight Loggable night begins | 07:36 PM | 02:36Z |
Plan a flight from CL53
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
NOTAMs · Loading NOTAMs…
Pilot reports · Loading PIREPs…
Airspace hazards · Checking SIGMETs and G-AIRMETs…
Temporary flight restrictions · Checking for TFRs…
Runways
| Runway | Length | Your margin |
|---|---|---|
| H1/ | 43 ft |
Prefer one flat page? Full runway details for CL53 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the CL53 kneeboard →
Comms & NavAids
Communication frequencies
Also
By procedure & sector (1 frequencies)
| Frequency | Used by |
|---|---|
| 353.5 | MOUNT TAMALPAIS RCAG (LOW) |
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
ILA 114.40 · ENI 112.30
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| ILA · Williams | VORTAC | 114.40 · 91X | Low | r236° / 28.8 NM |
| ENI · Mendocino | VORTAC | 112.30 · 70X | High | r087° / 31.4 NM |
Prefer one flat list? All CL53 frequencies →
Charts & procedures
No published instrument procedures or Chart Supplement for CL53 — open it on the VFR sectional →
Airport info
Airport information
- FAA LID
- CL53
- Coordinates
- 38.9346, -122.6193
- Elevation
- 1,432 ft MSL
- Magnetic variation
- 14E
- Sectional chart
- SAN FRANCISCO
- Airport use
- Private
- Control tower
- No
- ARTCC
- OAKLAND (ZOA)
- Flight service (FSS)
- OAKLAND · 1-800-WX-BRIEF
- NOTAM facility
- FDC
- Attendance
- UNATNDD
- Beacon
- white-green-yellow (SS-SR)
- Segmented circle
- No
- Wind indicator
- lighted
- Activated
- 2000/06
- Distance from city
- 2 S
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green-yellow · SS-SR
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are under Sun & FAA night in the Weather section.
Ownership & management 2 contacts
Remarks FAA · 4 notes
General
- FOR CD CTC OAKLAND ARTCC AT 510-745-3380.
Runways
- STD HELI MRKGS.
Lighting
- ACTVT PERI LGTS - 123.025
Contact
- EMAIL AUSTINC01@AH.ORG
Nearby airports
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Also nearby: 1O2 Lampson Field (14 NM) · 20CL Mysterious Valley (private) (16 NM) · CL69 Sutter Lakeside Hospital (private) (17 NM) · 4CL3 Antelope Valley Ranch (private) (18 NM) · O60 Cloverdale Municipal (20 NM) · KHES Healdsburg Municipal (21 NM)
About CL53
St Helena Hospital Clearlake (CL53) is a heliport in Clearlake, CA, at 1,432 ft MSL. It has 1 runway, the longest 43 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for CL53, refreshed from the Aviation Weather Center and FAA NASR.
Does CL53 have a control tower?
No. St Helena Hospital Clearlake is a non-towered (pilot-controlled) heliport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at CL53?
St Helena Hospital Clearlake has 1 runway; the longest is 43 ft. See the Runways section for headings, surface, and lighting.
Where is CL53?
St Helena Hospital Clearlake is in Clearlake, CA, at an elevation of 1,432 ft MSL. Coordinates: 38.9346, -122.6193.
More about CL53
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open CL53 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
Something here wrong or out of date? Report a data problem.