Mysterious Valley Airport (20CL) Area Aviation Weather & Runway Winds
Aviation weather near Mysterious Valley Airport in Pope Valley, CA, decoded from the nearest reporting station (KSTS): conditions, runway crosswinds, and free Telegram airport alerts.
Mysterious Valley Airport (20CL) is a general aviation airport serving pilots in and around Pope Valley, CA at 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. Its 2 runways (14, 32), longest 3,500 ft, are checked against the current wind in the crosswind table below. The nearest TAF is issued for KSTS. Track it in the ATIS Alerts Telegram bot to get alerts read from KSTS, the station this page is based on.
No weather station at this airport: showing the nearest station KSTS, 25.4 nm away.
Wind from the north (350°) at 13 kt, visibility 10+ statute miles, no cloud data, temperature 24°C (75°F), altimeter 29.90 inHg. Conditions are Visual Flight Rules (VFR).
METAR KSTS 130153Z 35013KT 10SM CLR 24/08 A2990 RMK AO2 PK WND 33029/0121 SLP119 T02390078
What changed at KSTS (nearest station)?
Since the 0053Z (5:53 PM PDT) report, compared automatically against the latest METAR.
- Wind shifted from 270° to 350° (80°).
- Wind speed up from 8 to 13 kt.
- Pressure rising: altimeter 29.87 → 29.90 inHg.
- Temperature down 3°C.
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Current pilot readout for 20CL
Based on the nearest station (KSTS), 20CL is currently VFR with winds from 350° at 13 knots, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 14, about 2 knots. Density altitude is approximately 2,850 ft (field elevation 1,410 ft). Review the latest TAF below for forecast changes before departure.
⚠️ 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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Track 20CL free on TelegramRunway 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 20CL. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 14FAV | 3,500 ft | GRVL | 13 kt head | 2 kt left |
| 32 | 3,500 ft | GRVL | 13 kt head | 2 kt left |
Open the crosswind calculator to try your own wind and runway numbers →
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 23 h: wind 6→13 kt, ceiling unlimited → unlimited.
20CL weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.
Live weather radar around Mysterious Valley Airport in Pope Valley, 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 20CL is headed.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap
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 20CL
Reported by pilots in flight over the past 6 hours, via aviationweather.gov.
Show raw report
SFO UA /OV SFO/TM 2224/FL000/TP A21N/RM LLWS +5/-5KTS DURD ON FINAL
SFO UAHeader: reporting station and UA: a routine pilot report.OV SFOLocation: fix or navaid, optionally with a radial and distance in NM.TM 2224Reported at 22:24 UTC.FL000Altitude: 0 ft MSL.TP A21NAircraft type reporting.RM LLWS +5/-5KTS DURD ON FIN…Remarks.Show raw report
SFO UA /OV SFO/TM 2131/FL000/TP B38M/RM NEG LLWS DURD
SFO UAHeader: reporting station and UA: a routine pilot report.OV SFOLocation: fix or navaid, optionally with a radial and distance in NM.TM 2131Reported at 21:31 UTC.FL000Altitude: 0 ft MSL.TP B38MAircraft type reporting.RM NEG LLWS DURDRemarks.Show raw report
SUU UA /OV SAC180015 /TM 2129 /FL030 /TP C172 /SK SKC /TA 21 /TB NEG /IC NEG
SUU UAHeader: reporting station and UA: a routine pilot report.OV SAC180015Location: fix or navaid, optionally with a radial and distance in NM.TM 2129Reported at 21:29 UTC.FL030Altitude: 3,000 ft MSL.TP C172Aircraft type reporting.SK SKCSky condition: cloud bases and tops in hundreds of feet MSL.TA 21Outside air temperature, °C.TB NEGTurbulence: none reported.IC NEGIcing: none reported.Show raw report
LVK UA /OV 295010/TM 2127/FL024/TP P28A/TB MOD
LVK UAHeader: reporting station and UA: a routine pilot report.OV 295010Location: fix or navaid, optionally with a radial and distance in NM.TM 2127Reported at 21:27 UTC.FL024Altitude: 2,400 ft MSL.TP P28AAircraft type reporting.TB MODTurbulence: moderate.Show raw report
SUU UA /OV O88 /TM 2125 /FL030 /TP C172 /SK SKC /TA 21 /TB OCNL LGT-MOD BLO 015 /IC NEG /RM DURC O88
SUU UAHeader: reporting station and UA: a routine pilot report.OV O88Location: fix or navaid, optionally with a radial and distance in NM.TM 2125Reported at 21:25 UTC.FL030Altitude: 3,000 ft MSL.TP C172Aircraft type reporting.SK SKCSky condition: cloud bases and tops in hundreds of feet MSL.TA 21Outside air temperature, °C.TB OCNL LGT-MOD BLO 015Turbulence: occasional light to moderate blo 015.IC NEGIcing: none reported.RM DURC O88Remarks.Show raw report
SFO UA /OV SFO/TM 2121/FL002/TP E75L/RM LLWS -5KTS DURD
SFO UAHeader: reporting station and UA: a routine pilot report.OV SFOLocation: fix or navaid, optionally with a radial and distance in NM.TM 2121Reported at 21:21 UTC.FL002Altitude: 200 ft MSL.TP E75LAircraft type reporting.RM LLWS -5KTS DURDRemarks.Show raw report
SFO UUA /OV SFO/TM 2120/FLB739/TP 002/RM LLWS -15KT DURD
SFO UUAHeader: reporting station and UUA: an URGENT pilot report (severe conditions, wind shear, or similar).OV SFOLocation: fix or navaid, optionally with a radial and distance in NM.TM 2120Reported at 21:20 UTC.FLB739Altitude: hundreds of feet MSL. UNKN = unknown; DURC/DURD = during climb/descent.TP 002Aircraft type reporting.RM LLWS -15KT DURDRemarks.Show raw report
SFO UA /OV SFO/TM 2115/FL011/TP B38M/RM NEG LLWS DURD
SFO UAHeader: reporting station and UA: a routine pilot report.OV SFOLocation: fix or navaid, optionally with a radial and distance in NM.TM 2115Reported at 21:15 UTC.FL011Altitude: 1,100 ft MSL.TP B38MAircraft type reporting.RM NEG LLWS DURDRemarks.⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.
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 31 observations, with 6 flight-category changes. The strongest gust reached 19 kt, the lowest ceiling was 500 ft. Wind most often came from the S.
Most recent change: IFR → VFR
Most recent change: IFR → VFR
- 14/32
- 100%
TAF | Terminal Aerodrome Forecast
Issued 2320Z (4:20 PM PDT)
TAF KSTS 122320Z 1300/1324 25015KT P6SM FEW250 FM130400 30008KT P6SM SKC FM131200 VRB04KT 6SM BR SKC TEMPO 1312/1316 2SM BR FM131600 32010KT P6SM SKC
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Airport facts
Reference data from the OurAirports dataset.
- 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
- 2
- Longest runway
- 3,500 ft
- Weather reporting
- Nearest station KSTS
- TAF
- Nearest KSTS
- Time zone
- America/Los_Angeles
- Sunset in
- 1m
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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
20CL weather: frequently asked
What runways are available at 20CL?+
20CL has 2 runways: 14, 32; the longest is 3,500 ft. This page computes the live crosswind for each runway end from the current wind.
Where does the weather shown for 20CL come from?+
Mysterious Valley Airport does not have its own weather station. Conditions shown here come from the nearest reporting station, KSTS, about 25 nm away, close enough for situational awareness, but local conditions at 20CL can differ.
Does 20CL have a TAF?+
Yes. The KSTS TAF is shown on this page below the current conditions.
Does 20CL broadcast D-ATIS?+
No. 20CL does not broadcast D-ATIS. Alerts for 20CL from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR (via the nearest reporting station) instead.
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.
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