ATIS Alerts

Konocti - Clear Lake Seaplane Base (5CA9) Area Aviation Weather & Runway Winds

Aviation weather near Konocti - Clear Lake Seaplane Base in Kelseyville, CA, decoded from the nearest reporting station (KUKI): conditions, runway crosswinds, and free Telegram airport alerts.

Konocti - Clear Lake Seaplane Base (5CA9) is a seaplane base in Kelseyville, CA. 5CA9 has no weather station of its own. Conditions here are decoded from KUKI, about 24 nm away, the nearest reporting station, and local conditions can differ. Its 2 runways (12, 30), longest 3,000 ft, are checked against the current wind in the crosswind table below. The nearest TAF is issued for KUKI. Track it in the ATIS Alerts Telegram bot to get alerts read from KUKI, the station this page is based on.

VFR
Observed 0656Z (11:56 PM PDT)live · refreshes every 60s

No weather station at this airport: showing the nearest station KUKI, 24.2 nm away.

Wind
360° 7 kt
Visibility
10+ sm
Ceiling
Unlimited
Altimeter
30.03"
Temp / Dew
59°F / 15°C
dew 48°F / 9°C

Wind from the north (360°) at 7 kt, visibility 10+ statute miles, no cloud data, temperature 15°C (59°F), altimeter 30.03 inHg. Conditions are Visual Flight Rules (VFR).

Raw METAR
METAR KUKI 130656Z AUTO 36007KT 10SM CLR 15/09 A3003 RMK AO2 SLP160 T01500089

What changed at KUKI (nearest station)?

Since the 0556Z (10:56 PM PDT) report, compared automatically against the latest METAR.

No significant changes since the 0556Z report, conditions are holding steady.

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Current pilot readout for 5CA9

Based on the nearest station (KUKI), 5CA9 is currently VFR with winds from 360° at 7 knots, visibility 10+ statute miles, and no ceiling reported. Density altitude is approximately 1,500 ft (field elevation 1,326 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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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 5CA9. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.

RunwayHead / TailCrosswind
12FAV7 kt head0 kt
307 kt head0 kt

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.

Wind (kt)Gusts (kt)Bottom strip, flight category:VFRMVFRIFRLIFRNo report
0142807Z19Z06Z

Over the last 23 h: wind 07 kt, ceiling unlimitedunlimited.

5CA9 weather radar

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

Live weather radar around Konocti - Clear Lake Seaplane Base in Kelseyville, 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 5CA9 is headed.

Loading…
Loading radar…

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 5CA9

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

PIREP0638Z (11:38 PM PDT) · 83 NM S of 5CA9 · during descent · A321
Show raw report
SFO UA /OV SFO/TM 0638/FL005/TP A321/RM NEG WIND SHEAR 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 0638Reported at 06:38 UTC.
FL005Altitude: 500 ft MSL.
TP A321Aircraft type reporting.
RM NEG WIND SHEAR DURDRemarks.
URGENT0338Z (8:38 PM PDT) · 83 NM S of 5CA9 · during descent · BCS3
Show raw report
SFO UUA /OV SFO/TM 0338/FL005/TP BCS3/RM +/- 10KTS 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 0338Reported at 03:38 UTC.
FL005Altitude: 500 ft MSL.
TP BCS3Aircraft type reporting.
RM +/- 10KTS DURDRemarks.
PIREP0334Z (8:34 PM PDT) · 83 NM S of 5CA9 · 500 ft MSL · B753
Show raw report
SFO UA /OV SFO/TM 0334/FL005/TP B753/RM +/- 5 KTS
SFO UAHeader: reporting station and UA: a routine pilot report.
OV SFOLocation: fix or navaid, optionally with a radial and distance in NM.
TM 0334Reported at 03:34 UTC.
FL005Altitude: 500 ft MSL.
TP B753Aircraft type reporting.
RM +/- 5 KTSRemarks.
PIREP0312Z (8:12 PM PDT) · 83 NM S of 5CA9 · during descent · A321
Show raw report
SFO UA /OV SFO/TM 0312/FL005/TP A321/RM +/- 5 KTS 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 0312Reported at 03:12 UTC.
FL005Altitude: 500 ft MSL.
TP A321Aircraft type reporting.
RM +/- 5 KTS DURDRemarks.
URGENT0311Z (8:11 PM PDT) · 83 NM S of 5CA9 · during descent · CL60
Show raw report
SFO UUA /OV SFO/TM 0311/FL012/TP CL60/RM +/- 10 KTS 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 0311Reported at 03:11 UTC.
FL012Altitude: 1,200 ft MSL.
TP CL60Aircraft type reporting.
RM +/- 10 KTS DURDRemarks.
PIREP0309Z (8:09 PM PDT) · 83 NM S of 5CA9 · during climb · B77W
Show raw report
SFO UA /OV SFO/TM 0309/FL005/TP B77W/RM NEG WIND SHEAR DURC
SFO UAHeader: reporting station and UA: a routine pilot report.
OV SFOLocation: fix or navaid, optionally with a radial and distance in NM.
TM 0309Reported at 03:09 UTC.
FL005Altitude: 500 ft MSL.
TP B77WAircraft type reporting.
RM NEG WIND SHEAR DURCRemarks.
PIREP0309Z (8:09 PM PDT) · 83 NM S of 5CA9 · during descent · A332
Show raw report
SFO UA /OV SFO/TM 0309/FL002/TP A332/RM +/- 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 0309Reported at 03:09 UTC.
FL002Altitude: 200 ft MSL.
TP A332Aircraft type reporting.
RM +/- 5KTS DURDRemarks.
PIREP0303Z (8:03 PM PDT) · 83 NM S of 5CA9 · during descent · B38M
Show raw report
SFO UA /OV SFO/TM 0303/FL005/TP B38M/RM +/- 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 0303Reported at 03:03 UTC.
FL005Altitude: 500 ft MSL.
TP B38MAircraft type reporting.
RM +/- 5KTS DURDRemarks.

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

Recent aviation weather trends at 5CA9

From ATIS Alerts' hourly weather history.

Over the past 24 hours, the nearest station KUKI reported mostly VFR across 24 observations, with 0 flight-category changes. The strongest gust reached 24 kt, the lowest ceiling was 9,000 ft. Wind most often came from the N.

Last 24 hours
VFR 100%
Wind avg/max: 5/15 kt
Max gust: 24 kt
Lowest ceiling: 9,000 ft
Lowest vis: -
Prevailing wind: N
Category changes: 0
Last 7 days
VFR 100%
Wind avg/max: 2/15 kt
Max gust: 24 kt
Lowest ceiling: 9,000 ft
Lowest vis: 10 sm
Prevailing wind: N
Category changes: 0
Active Runway - past 30 days
12/30
100%

TAF | Terminal Aerodrome Forecast

Issued 0616Z (11:16 PM PDT)

TAF KUKI 130616Z 1306/1406 35004KT P6SM SKC FM131700 32009G18KT P6SM SKC FM140100 35004KT P6SM SKC

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Nearby TFRs

Active FAA TFRs near 5CA9

FAA TFR data shows an active temporary flight restriction near 5CA9.

Hazard TFR
12NM NE UKIAH, CA
Active 13.1 NM from 5CA9
Effective: Saturday, September 12, 2026 through Monday, September 28, 2026 UTC
NOTAM: 6/2516

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
Seaplane base
FAA LID
5CA9
City
Kelseyville
State
California
Country
United States
Elevation
1,326 ft
Coordinates
38.9777, -122.7180
Runways
2
Longest runway
3,000 ft
Weather reporting
Nearest station KUKI
TAF
Nearest KUKI
Time zone
America/Los_Angeles
Next sunset
19h 11m

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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.

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5CA9 weather: frequently asked

What runways are available at 5CA9?+

5CA9 has 2 runways: 12, 30; the longest is 3,000 ft. This page computes the live crosswind for each runway end from the current wind.

Where does the weather shown for 5CA9 come from?+

Konocti - Clear Lake Seaplane Base does not have its own weather station. Conditions shown here come from the nearest reporting station, KUKI, about 24 nm away, close enough for situational awareness, but local conditions at 5CA9 can differ.

Does 5CA9 have a TAF?+

Yes. The KUKI TAF is shown on this page below the current conditions.

Does 5CA9 broadcast D-ATIS?+

No. 5CA9 does not broadcast D-ATIS. Alerts for 5CA9 from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR (via the nearest reporting station) instead.

Pilot PIREPs for Konocti - Clear Lake Seaplane Base (5CA9)

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 Konocti - Clear Lake Seaplane Base, 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 5CA9 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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