Louis Armstrong New Orleans International Airport (KMSY) Aviation Weather, METAR, TAF & ATIS Alerts
Live aviation weather for Louis Armstrong New Orleans International Airport in New Orleans, LA, including METAR, TAF, flight category, wind, visibility, ceiling, altimeter, runway crosswinds, and Telegram airport alerts.
Louis Armstrong New Orleans International Airport (KMSY) is one of the primary air-carrier airports serving New Orleans, LA at 4 ft. KMSY reports its own METAR and publishes a TAF, and broadcasts digital ATIS (D-ATIS) — decoded live on this page as flight category, wind, visibility, ceiling and altimeter. Its 6 runways (02, 06, 11, 20) — longest 10,104 ft — are checked against the current wind in the crosswind table below. The official FAA airport diagram is at the bottom of the page. Track KMSY in the ATIS Alerts Telegram bot to get a message the moment the ATIS letter changes or the weather drops below your selected minimums.
What changed at KMSY?
Since the 0253Z (9:53 PM CDT) report — compared automatically against the latest METAR.
No significant changes since the 0253Z report — conditions are holding steady.
This is exactly what ATIS Alerts watches for you — get a Telegram message when KMSY's ATIS or weather changes, free →
Current pilot readout for KMSY
A current METAR is not available for KMSY right now. 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 →
Get KMSY weather alerts in Telegram
Stop refreshing aviation weather manually. Track KMSY in ATIS Alerts and get notified when the ATIS changes, the airport drops below VFR, or wind and ceiling conditions move closer to your minimums.
Track KMSY free on TelegramD-ATIS
Digital Automatic Terminal Information Service — the live broadcast.
MSY ATIS INFO H 0353Z. 24006KT 10SM BKN250 28/26 A2987 (TWO NINER EIGHT SEVEN). RNAV RY 11 IN USE. DEPG RY 11. NOTICE TO AIRMEN. TWY, E CLSD BTWN TWY, G8 AND TWY S, TWY, S CLSD BTWN TWY, G AND RWY 11, TWY, S CLSD BTWN TWY, E AND RWY 2, TWY, S CLSD BTWN TWY, H AND RWY 20, TAXIWAY HOTEL CLOSED TO AIRCRAFT WITH A WINGSPAN OF MORE THAN ONE HUNDRED AND FORTY ONE FEET. RWY 2 AND 20 CLSD. RY 29 ALS OTS, RY 11 SFL OTS, RWY 29 PAPI OUT OF SERVICE, ILS RWY 11 OUT OF SERVICE. LOC RWY 11 OUT OF SERVICE. RWY 29 GS OUT OF SERVICE. MSY ASDE OTS. TRSSH AND MNSTR ARR EXPECT DESCEND VIA RY TRANSITIONS.WARNING RUNWAY 11/29 HAS BEEN SHORTENED, EIGHT THOUSAND THREE HUNDRED FEET AVAILABLE.RUNWAY 29 RNAV APPROACH NOT AVAILABLE. BIRD ACTIVITY VICINITY ARPT. ...ADVS YOU HAVE INFO H.
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 KMSY. 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 |
|---|---|---|---|---|
| 02 | 7,002 ft | ASP | — | — |
| 11 | 10,104 ft | PEM | — | — |
| 20 | 7,002 ft | ASP | — | — |
| 29 | 10,104 ft | PEM | — | — |
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 6→6 kt, ceiling unlimited → 25,000 ft.
KMSY weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast — drag to pan, tap ⚡ to toggle lightning.
Live weather radar around Louis Armstrong New Orleans International Airport in New Orleans, 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 KMSY 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 KMSY
From ATIS Alerts' hourly weather history.
Over the past 24 hours, KMSY reported mostly VFR across 24 observations, with 0 flight-category changes. The lowest ceiling was 5,500 ft. Wind most often came from the W.
Most recent change: MVFR → VFR
- 29
- 40%
- 20
- 31%
- 02
- 18%
- 11
- 11%
Get free ATIS alerts for KMSY
We'll message you on Telegram the moment KMSY (Louis Armstrong New Orleans International Airport)'s ATIS letter changes or it drops below VFR — so you check weather only when it actually matters.
Track KMSY on TelegramFree • no app to install • unsubscribe anytime
Airport facts
Reference data from the OurAirports dataset.
- Type
- Large airport
- ICAO
- KMSY
- IATA
- MSY
- FAA LID
- MSY
- City
- New Orleans
- State
- Louisiana
- Country
- United States
- Elevation
- 4 ft
- Coordinates
- 29.9934, -90.2647
- Runways
- 6
- Longest runway
- 10,104 ft
- Weather reporting
- METAR · D-ATIS
- TAF
- Nearest KMSY
- ATIS
- 127.55 MHz
- Time zone
- America/Chicago
- Next sunset
- 20h 10m
Run a flight school, FBO, or club here? Embed KMSY'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
9 airports+3 more within 25 NM
25–50 NM
7 airports+1 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.
- Churchill Air Field - Kelly Field — Westwego, LA · 8 mi
- Spillway RC Club Inc 1 — Norco, LA · 10 mi
- CCRCC - Crescent City RC Club, Inc - Hwy 18 — Edgard, LA · 20 mi
Historical Flying Weather
2006–2025 · ATIS Alerts Flying Weather Index
Based on historical observations from 2006–2025, KMSY reported VFR conditions during about 85.3% of valid daylight observations, with an estimated 283 VFR flying days a year. July had the most VFR weather; December had the most instrument conditions. Surface winds averaged 6.7 kt, calm 12.4% of the time.
Full historical breakdown
Flight category by month
| Month | VFR % | MVFR % | IFR % | LIFR % |
|---|---|---|---|---|
| Jan | 74.0 | 14.5 | 6.3 | 5.2 |
| Feb | 69.2 | 17.5 | 7.9 | 5.3 |
| Mar | 77.6 | 15.6 | 4.1 | 2.7 |
| Apr | 80.9 | 15.3 | 3.3 | 0.6 |
| May | 89.9 | 9.2 | 0.8 | 0.1 |
| Jun | 94.3 | 5.0 | 0.6 | 0.1 |
| Jul | 95.8 | 3.5 | 0.6 | 0.1 |
| Aug | 95.3 | 4.0 | 0.7 | 0.1 |
| Sep | 92.8 | 6.1 | 1.1 | 0.1 |
| Oct | 88.8 | 8.7 | 1.9 | 0.6 |
| Nov | 82.6 | 11.0 | 4.5 | 2.0 |
| Dec | 68.6 | 16.1 | 7.8 | 7.5 |
Average wind by month
| Month | Mean wind (kt) |
|---|---|
| Jan | 7.8 kt |
| Feb | 8.0 kt |
| Mar | 7.9 kt |
| Apr | 8.1 kt |
| May | 6.9 kt |
| Jun | 5.8 kt |
| Jul | 5.0 kt |
| Aug | 5.2 kt |
| Sep | 5.6 kt |
| Oct | 6.6 kt |
| Nov | 6.9 kt |
| Dec | 7.2 kt |
Historical summary of past observations — not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.
KMSY airport diagram
Official FAA taxiway and runway layout. Tap to zoom.
The FAA airport diagram for Louis Armstrong New Orleans International Airport in New Orleans, LA shows the runway and taxiway layout across 6 runways, ramp areas, and hold-short positions — review it before taxiing at an unfamiliar field.
Official FAA airport diagram · d-TPP cycle 2608 · Not for navigation. Download the official FAA PDF ↗
KMSY weather — frequently asked
What runways are available at KMSY?+
KMSY has 6 runways — 02, 06, 11, 20, 24, 29; the longest is 10,104 ft. This page computes the live crosswind for each runway end from the current wind.
Does KMSY report its own weather?+
Yes — Louis Armstrong New Orleans International Airport has its own weather station and publishes METAR observations, which this page decodes live.
Does KMSY have a TAF?+
No — KMSY does not publish its own TAF. The nearest TAF station is KMSY, about 0 nm away.
Does KMSY broadcast D-ATIS?+
Yes — KMSY publishes digital ATIS, and the live broadcast text with its current information letter is shown on this page. The ATIS Alerts bot (@atisalerts_bot) can message you the moment the letter changes.
Where can I find the KMSY airport diagram?+
The official FAA airport diagram for Louis Armstrong New Orleans International Airport (KMSY) is shown on this page — it maps the runway and taxiway layout, ramps, and hold-short lines. Tap it to zoom, or download the official FAA PDF free from the link under the diagram (updated every 28-day FAA charting cycle).
Pilot PIREPs for Louis Armstrong New Orleans International Airport (KMSY)
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 Louis Armstrong New Orleans International 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 KMSY 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.
Why pilots use ATIS Alerts
Free aviation weather and ATIS change alerts for GA pilots, delivered on Telegram — so a change catches your eye before it catches you off guard.
- Get pinged the moment KMSY's ATIS letter changes or it drops below VFR.
- Live METAR, TAF, D-ATIS, crosswinds, and FAA delays — one link, always current.
- Free, no app to install, and you can track any US airport. Unsubscribe anytime.
⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
Spotted incorrect airport info? ✏️ Suggest an edit
How ATIS Alerts works · All US airports · Louisiana airports