S74 Weather Lost Isle Seaplane Base

Stockton, CaliforniaSeaplane base
OFF-FIELD REFERENCE
Nearest report: KSCK · 12 NM SE · 50 min old
No ceiling, visibility 10 SM.
No on-field report, so no field flight category. Conditions at the field may differ.
OFF-FIELD REFERENCE · KSCK
WIND
Calm
no steady wind
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer
FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

No aviation METAR is published for this airport. The nearest National Weather Service station reports wind calm, visibility 10 SM, temperature 19C. Treat this as supplemental, not an aviation observation. Forecast suggests tonight mostly clear, low near 49F, 0% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

DayConditionsTemp FWindGustsPrecipPilot note
Tonight Mostly Clear 49 W 3 kt – 0%
Monday Sunny 71/46 WSW 8 kt 16 kt 0%
Tuesday Mostly Sunny 66/45 W 5 kt – 0%
Wednesday Mostly Sunny 68/46 NW 4 kt – 1%
Thursday Partly Sunny 66/44 W 4 kt – 2%
Friday Sunny 63/43 WSW 6 kt – 26%
Saturday Chance Light Rain 61/42 W 4 kt – 31%
Sunday Chance Light Rain 61 NW 5 kt – 29%

Source: National Weather Service (office STO). Forecast issued 0244Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

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RUNWAYS & WIND
Crosswind calculator
No runway layout is available for S74. Enter a runway number or heading to estimate wind components.
RUNWAYS

Runway detail

NW/SE
Dimensions
4,000 x 300 ft
Surface
WATER-G
DAYLIGHT & NIGHT

Sun & logging windows

Sunset
0115Z 6:15 PM
Sunrise
1425Z 7:25 AM
Loggable night
0142Z (6:42 PM local) → 1358Z (6:58 AM local)
end of evening to start of morning civil twilight
Position lights required
0115Z (6:15 PM local) → 1425Z (7:25 AM local)
sunset to sunrise (91.209)
Night passenger currency
0215Z (7:15 PM local) → 1325Z (6:25 AM local)
1 hr after sunset to 1 hr before sunrise (61.57(b))

FAA definitions, shown in Zulu with airport-local time. Verify for your operation.

AIRPORT INFORMATION

Facility & services

Lost Isle Seaplane Base is in Stockton, California. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
TypeSeaplane base
CHARTS & AIRSPACE
ICAO / IATAS74
RegionCalifornia
CountryUnited States
Coordinates38.0041, -121.4570
SERVICES & LIGHTING
Control towerNon-towered
AIRCRAFT ACTIVITY

S74 traffic patterns

2026-07-17 to 2026-09-26, 10 days observed · data 2026-10-23

Low confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
2
AVG OPS/DAY
8
Activity trend over 2 days: rising, from 6 to 10 operations per dayOperations trend (2 days)

Busiest day: Sun · Busiest month: Jul

FLEET MIX
Helicopter 93%Piston single 8%

Mostly rotorcraft.

TOP AIRCRAFT TYPES
›B06 (Helicopter) · ~12 landings/mo
›SREY (Piston single) · ~1 landings/mo
LIKELY BASED AIRCRAFT
Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly rotorcraft.

›B06 (Helicopter)
›SREY (Piston single)

This is an estimate based on repeated flight patterns, not registration data. Do not rely on it to identify specific aircraft or owners.

Data limitations (4)
›ADS-B coverage is incomplete; counts are an observed lower bound, not official totals.
›Some aircraft do not transmit usable ADS-B and are not counted.
›Aircraft types and based estimates are inferred and may be wrong.
›This is not official ATC, FAA, or airport data.
NEARBY AIRPORTS

Weather reference stations

S74 has no on-field report. Nearest reporting station: KSCK (12 NM SE, VFR).

FREQUENTLY ASKED
Does S74 have a METAR?
No on-field METAR is issued for S74. This page uses the nearest reporting station as a reference.
Does S74 have a TAF?
No TAF is issued directly for S74. Use the nearest TAF-issuing field as a planning reference.
Is this an official preflight weather briefing for S74?
No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.
This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.