Port Sulphur Seaplane Base (4LA0) Area Aviation Weather & Runway Winds
Aviation weather near Port Sulphur Seaplane Base in Port Sulphur, LA, decoded from the nearest reporting station (KNBG) — conditions, runway crosswinds, and free Telegram airport alerts.
Port Sulphur Seaplane Base (4LA0) is a seaplane base in Port Sulphur, LA. 4LA0 has no weather station of its own — conditions here are decoded from KNBG, about 28 nm away, the nearest reporting station, and local conditions can differ. Its 4 runways (NE, NW, SE, SW) — longest 15,000 ft — are checked against the current wind in the crosswind table below. The nearest TAF is issued for KNBG. Track it in the ATIS Alerts Telegram bot to get alerts read from KNBG, the station this page is based on.
No weather station at this airport — showing the nearest station KNBG, 27.8 nm away.
Wind from the west (260°) at 4 kt, visibility 10+ statute miles, scattered clouds at 25,000 ft, temperature 28°C (83°F), altimeter 29.87 inHg. Conditions are Visual Flight Rules (VFR).
METAR KNBG 290355Z 26004KT 10SM SCT250 28/26 A2987 RMK AO2 SLP113 T02830256 $
What changed at KNBG (nearest station)?
Since the 0255Z (9:55 PM CDT) report — compared automatically against the latest METAR.
- The 25,000 ft ceiling dissipated — no ceiling now.
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Current pilot readout for 4LA0
Based on the nearest station (KNBG), 4LA0 is currently VFR with winds from 260° at 4 knots, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway NE, about 4 knots. Density altitude is approximately 1,650 ft (field elevation 0 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 4LA0 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 4LA0. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| NEFAV | 15,000 ft | WATER | 1 kt tail | 4 kt left |
| NW | 15,000 ft | WATER | 1 kt tail | 4 kt left |
| SE | 15,000 ft | WATER | 1 kt tail | 4 kt left |
| SW | 15,000 ft | WATER | 1 kt tail | 4 kt left |
Open the crosswind calculator — 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 4→4 kt, ceiling unlimited → unlimited.
4LA0 weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast — drag to pan, tap ⚡ to toggle lightning.
Live weather radar around Port Sulphur Seaplane Base in Port Sulphur, LA: 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 4LA0 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 4LA0
From ATIS Alerts' hourly weather history.
Over the past 24 hours, the nearest station KNBG reported mostly VFR across 23 observations, with 0 flight-category changes. The lowest ceiling was 7,500 ft. Wind most often came from the W.
History is still being collected — check back in a few days.
TAF — Terminal Aerodrome Forecast
Issued 0100Z (8:00 PM CDT)
TAF KNBG 290100Z 2823/2923 31006KT 9999 SCT035 SCT085 BKN250 QNH2982INS BECMG 2900/2902 25007KT 9999 FEW050 SCT100 SCT250 QNH2985INS BECMG 2911/2913 30010KT 9999 SCT025 SCT250 QNH2991INS FM292100 26007KT 9999 VCSH SCT035 BKN110 BKN250 QNH2983INS AUTOMATED SENSOR METWATCH 2904 TIL 2910 TX36/2920Z TN26/2911Z FS30020
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We'll message you on Telegram when a new report moves the picture near 4LA0 (Port Sulphur Seaplane Base) — alerts read from KNBG, the station this page uses.
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Airport facts
Reference data from the OurAirports dataset.
- Type
- Seaplane base
- FAA LID
- 4LA0
- City
- Port Sulphur
- State
- Louisiana
- Country
- United States
- Elevation
- 0 ft
- Coordinates
- 29.4627, -89.7028
- Runways
- 4
- Longest runway
- 15,000 ft
- Weather reporting
- Nearest station KNBG
- TAF
- Nearest KNBG
- Time zone
- America/Chicago
- Next sunset
- 20h 56m
Run a flight school, FBO, or club here? Embed 4LA0'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
1 airport25–50 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.
- St. Bernard Aerospace Club - Hwy 46 — St. Bernard, LA · 28 mi
4LA0 weather — frequently asked
What runways are available at 4LA0?+
4LA0 has 4 runways — NE, NW, SE, SW; the longest is 15,000 ft. This page computes the live crosswind for each runway end from the current wind.
Where does the weather shown for 4LA0 come from?+
Port Sulphur Seaplane Base does not have its own weather station. Conditions shown here come from the nearest reporting station, KNBG, about 28 nm away — close enough for situational awareness, but local conditions at 4LA0 can differ.
Does 4LA0 have a TAF?+
Yes — the KNBG TAF is shown on this page below the current conditions.
Does 4LA0 broadcast D-ATIS?+
No — 4LA0 does not broadcast D-ATIS. Alerts for 4LA0 from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR (via the nearest reporting station) instead.
Pilot PIREPs for Port Sulphur Seaplane Base (4LA0)
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 Port Sulphur 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 4LA0 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.
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