Mysterious Valley Airport (20CL) Area Aviation Weather & Runway Winds
As of 3:53 AM PDT, Oct 28, based on the nearest station (KSTS), 20CL is currently VFR with winds from 310° at 4 knots, visibility 10+ statute miles, and no ceiling reported.
Aviation weather near Mysterious Valley Airport in Pope Valley, CA, decoded from the nearest reporting station (KSTS): conditions and runway crosswinds.
Mysterious Valley Airport (20CL) is a general aviation airport serving pilots in and around Pope Valley, CA at a field elevation of 1,410 ft. 20CL has no weather station of its own. Conditions here are decoded from KSTS, about 25 nm away, the nearest reporting station, and local conditions can differ. It has one runway (14/32), the longest 3,500 ft. The nearest TAF is issued for KSTS.
No weather station at this airport: showing the nearest station KSTS, 25.4 nm away.
Wind from the northwest (310°) at 4 kt, visibility 10+ statute miles, no cloud data, temperature 6°C (43°F), altimeter 30.02 inHg. Conditions are Visual Flight Rules (VFR).
METAR KSTS 281053Z AUTO 31004KT 10SM CLR 06/05 A3002 RMK AO2 SLP160 T00610050
What changed at KSTS (nearest station)?
Since the 0953Z (2:53 AM PDT) report, compared automatically against the latest METAR.
- Temperature–dewpoint spread narrowed to 1°C. Watch for fog or low cloud.
Current pilot readout for 20CL
Based on the nearest station (KSTS), 20CL is currently VFR with winds from 310° at 4 knots, visibility 10+ statute miles, and no ceiling reported. the wind favors north-facing runway ends (32). Density altitude is approximately 550 ft (field elevation 1,410 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 |
|---|---|---|---|---|
| 32FAV | 3,500 ft | GRVL | 3 kt head | 3 kt left |
| 14 | 3,500 ft | GRVL | 4 kt tail | 2 kt right |
Open the crosswind calculator to try your own wind and runway numbers →
20CL 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 14/323,500 × 30 ft · GRVLCurrent useno stated-runway source at 20CLWind
- 14
- 4 kt tailwind · 2 kt crosswind from right
- 32
- 3 kt headwind · 3 kt crosswind from left
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 0→4 kt, ceiling 100 ft → unlimited.
20CL 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.
Recent aviation weather trends at 20CL
From ATIS Alerts' hourly weather history.
Over the past 24 hours, the nearest station KSTS reported mostly VFR across 35 observations, with 1 flight-category change. The lowest ceiling was 100 ft. Wind most often came from the N.
Most recent change: LIFR → VFR
Most recent change: LIFR → VFR
Share of hours each runway had the most headwind. From wind reports, not ATC assignments.
- 14
- 81%
- 32
- 19%
TAF | Terminal Aerodrome Forecast
Issued 1120Z (4:20 AM PDT)
TAF KSTS 281120Z 2812/2912 31004KT P6SM SKC TEMPO 2812/2816 1/2SM FG VV002 FM281600 VRB03KT P6SM SCT250 FM282200 17005KT P6SM SCT250
New to TAFs? How to read one →
Get 20CL weather alerts in Telegram
Stop refreshing aviation weather manually. Track 20CL in ATIS Alerts and get notified when a new METAR changes the picture: a category drop, or wind and ceiling moving toward your minimums.
Track 20CL free on TelegramNo live weather from 20CL
Live crosswind meter
20CL has no weather feed online, so the wind comes from KSTS, 25 nm away.
Wind is 50° off runway 32, the end with the most headwind right now.
Have a weather station at 20CL? Help us make your field's weather available to every pilot, free. Add your field's wx station →Gravel · 3,500 ft. Headings from FAA runway data. Not for navigation.
Field aerial
North up
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
- Attended
- Ireg all day
- Landing fee
- No
- Control tower
- None
- Wind indicator
- Unlighted
Airport
- Type
- General aviation airport
- FAA LID
- 20CL
- City
- Pope Valley
- State
- California
- Country
- United States
- Elevation
- 1,410 ft
- Coordinates
- 38.7493, -122.3670
- Runways
- 1 physical runway · 2 runway ends
- Longest runway
- 3,500 ft
- Weather reporting
- Nearest station KSTS
- TAF
- Nearest KSTS
- Time zone
- America/Los_Angeles
- Next sunset
- 13h 30m
Run a flight school, FBO, or club here? Embed 20CL'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
9 airports+3 more within 25 NM
25–50 NM
7 airports+1 more within 50 NM
50–100 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.
- Clearlake Modelers - Jay Carey field , Kelseyville, CA · 25 mi
- Norcal Flyers - Geyserville New Tech Academy , Geyserville, CA · 28 mi
Pilot PIREPs for Mysterious Valley Airport (20CL)
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 Mysterious Valley 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 20CL 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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