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 calm, visibility 3 statute miles, no cloud data, temperature 22°C (72°F), altimeter 30.01 inHg. Conditions are Marginal VFR (MVFR).
SPECI KNBG 131007Z AUTO 00000KT 3SM BR CLR 22/22 A3001 RMK AO2 T02220222
What changed at KNBG (nearest station)?
Since the 0955Z (4:55 AM CDT) report, compared automatically against the latest METAR.
No significant changes since the 0955Z report, conditions are holding steady.
The latest report is an off-schedule special (SPECI), issued because conditions changed significantly. What is a SPECI? →
This is exactly what ATIS Alerts watches for you: get a Telegram message when 4LA0's weather changes, free →
Current pilot readout for 4LA0
Based on the nearest station (KNBG), 4LA0 is currently MVFR with calm winds, visibility 3 statute miles, and no ceiling reported. Density altitude is approximately 750 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 →
Get 4LA0 weather alerts in Telegram
Stop refreshing aviation weather manually. Track 4LA0 in ATIS Alerts and get notified when a new METAR changes the picture: a category drop, or wind and ceiling moving toward your minimums.
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.
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 |
|---|---|---|---|---|
| NE | 15,000 ft | WATER | - | - |
| NW | 15,000 ft | WATER | - | - |
| SE | 15,000 ft | WATER | - | - |
| SW | 15,000 ft | WATER | - | - |
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 0→0 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 © 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.
Recent aviation weather trends at 4LA0
From ATIS Alerts' hourly weather history.
Over the past 24 hours, the nearest station KNBG reported a mix of conditions, most often VFR across 39 observations, with 13 flight-category changes. The strongest gust reached 16 kt, the lowest ceiling was 2,000 ft. Wind most often came from the SW.
Most recent change: VFR → MVFR
Most recent change: VFR → MVFR
- NE/NW/SE/SW
- 100%
TAF | Terminal Aerodrome Forecast
Issued 0600Z (1:00 AM CDT)
TAF KNBG 130600Z 1307/1407 VRB06KT 8000 BR SCT025 BKN060 BKN250 QNH2989INS FM131500 VRB06KT 9999 VCTS BKN050 QNH2994INS TX33/1322Z TN24/1310Z FN00276
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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
- 13h 43m
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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