Las Serpientes Airport (CN19) Area Aviation Weather & Runway Winds
Aviation weather near Las Serpientes Airport in Knightsen, CA, decoded from the nearest reporting station (KTCY) — conditions, runway crosswinds, and free Telegram airport alerts.
Las Serpientes Airport (CN19) is a general aviation airport serving pilots in and around Knightsen, CA at 10 ft. CN19 has no weather station of its own — conditions here are decoded from KTCY, about 17 nm away, the nearest reporting station, and local conditions can differ. Its 2 runways (16, 34) — longest 1,900 ft — are checked against the current wind in the crosswind table below. The nearest TAF is issued for KLVK. Track it in the ATIS Alerts Telegram bot to get alerts read from KTCY, the station this page is based on.
No weather station at this airport — showing the nearest station KTCY, 16.8 nm away.
Current pilot readout for CN19
A current METAR is not available for CN19 right now. The nearest reporting station is KTCY. Check back shortly, review a nearby reporting station, and always confirm with an official briefing before flight.
⚠️ 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 CN19 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 CN19. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.
Current wind is calm — calm wind is not a factor for runway selection, and with no wind there is no head/tail or crosswind component to compute. Live numbers return automatically once a report includes a wind direction.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 16 | 1,900 ft | TURF | — | — |
| 34 | 1,900 ft | TURF | — | — |
Open the crosswind calculator — try your own wind and runway numbers →
CN19 weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast — drag to pan, tap ⚡ to toggle lightning.
Live weather radar around Las Serpientes Airport in Knightsen, 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 CN19 is headed.
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.
Recent aviation weather trends at CN19
From ATIS Alerts' hourly weather history.
History is still being collected — check back in a few days.
- 34
- 53%
- 16
- 47%
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We'll message you on Telegram when a new report moves the picture near CN19 (Las Serpientes Airport) — alerts read from KTCY, the station this page uses.
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Nearby TFRs
Active FAA TFRs near CN19
FAA TFR data shows an active temporary flight restriction near CN19.
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
- CN19
- City
- Knightsen
- State
- California
- Country
- United States
- Elevation
- 10 ft
- Coordinates
- 37.9331, -121.6130
- Runways
- 2
- Longest runway
- 1,900 ft
- Weather reporting
- Nearest station KTCY
- TAF
- Nearest KLVK
- Time zone
- America/Los_Angeles
- Sunset in
- 1h 25m
Run a flight school, FBO, or club here? Embed CN19'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
8 airports+2 more within 25 NM
25–50 NM
8 airports+2 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.
- East Bay Radio Controllers - Laughlin Rd — Livermore, CA · 15 mi
- Livermore Flying Electrons - Raymond Rd — Livermore, CA · 16 mi
- Thomas C. Allen Memorial Airfield — Pittsburg, CA · 18 mi
CN19 weather — frequently asked
What runways are available at CN19?+
CN19 has 2 runways — 16, 34; the longest is 1,900 ft. This page computes the live crosswind for each runway end from the current wind.
Where does the weather shown for CN19 come from?+
Las Serpientes Airport does not have its own weather station. Conditions shown here come from the nearest reporting station, KTCY, about 17 nm away — close enough for situational awareness, but local conditions at CN19 can differ.
Does CN19 have a TAF?+
No — CN19 does not publish its own TAF. The nearest TAF station is KLVK, about 17 nm away.
Does CN19 broadcast D-ATIS?+
No — CN19 does not broadcast D-ATIS. Alerts for CN19 from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR (via the nearest reporting station) instead.
Pilot PIREPs for Las Serpientes Airport (CN19)
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 Las Serpientes 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 CN19 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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⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
METAR source temporarily unavailable.
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