Current Weather
Raw METAR
Clouds - Visual Profile
Weather Briefing
LIFRLong Island Mac Arthur Airport is currently reporting low IFR (LIFR) conditions with overcast skies at 6,000 feet and 0.008 km visibility.
Wind Analysis
Winds are from the north (10°) at 8 knots. Runway 33 is favored with a 6-knot headwind and 5-knot crosswind component.
Visibility & Ceiling
Visibility is severely reduced to 0.008 km, likely due to fog, mist, or precipitation. Special VFR or an IFR clearance may be required. The ceiling is 5000 feet AGL (broken), well above standard VFR minimums.
Temperature & Moisture
Temperature is 13°C (55°F) with a dewpoint of 11°C. The temperature-dewpoint spread is very narrow, indicating saturated or near-saturated air. Fog formation or low cloud development is likely.
Forecast Outlook
The TAF forecast covers the next 23 hours. Conditions are expected to fluctuate between VFR and MVFR. VFR pilots should be prepared for deteriorating conditions. Expected weather includes: Light Showers Rain, Mist. Temporary MVFR conditions are forecast between 12:00Z and 15:00Z.
Pilot Recommendations
Current conditions require an instrument rating, IFR-equipped aircraft, and an IFR clearance. Check approach minimums carefully as conditions may be below CAT I ILS minimums. The narrow temperature-dewpoint spread creates risk of fog formation, particularly during evening and early morning hours.
This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.
Forecast (TAF)
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Airport Runway Layout
Runway Information
| Runway | Length | Width | Surface | Heading | Wind Component |
|---|---|---|---|---|---|
|
✈️ 06/24
Active: 06
|
7,006 ft | 150 ft | ASP | 45° |
↑ 5.1 kt
•
↔ 6.1 kt
50° angle
|
| 10/28 | 5,034 ft | 150 ft | ASP | 90° |
↑ 1.4 kt
•
↔ 7.9 kt
80° angle
|
| 15L/33R | 3,175 ft | 75 ft | ASP | 135° |
↓ 4.6 kt
•
↔ 6.6 kt
125° angle
|
| 15R/33L | 5,186 ft | 150 ft | ASP | 135° |
↓ 4.6 kt
•
↔ 6.6 kt
125° angle
|
Weather Statistics - KISP
6,048 observations | Sep 2025 - May 2026Flight Rules Distribution
Long Island Mac Arthur Airport typically experiences VFR conditions 79.9% of the time, though instrument-rated pilots will find IFR weather present approximately 10.7% of observations. Prevailing winds are from the W averaging 9.7 knots, with gusts recorded up to 33 knots. Calm conditions occur 10.6% of the time. Temperature extremes range from -16°C to 29°C, reflecting significant seasonal variation. The best months for VFR flying are May, December, September.
Wind Analysis
Temperature Range
Visibility
Best Months for VFR
Runway Wind Analysis
Statistics computed from 6,048 METAR observations (Sep 2025 - May 2026). Data sourced from official aviation weather services. Updated daily.
Long Island Mac Arthur Airport - Airport Information
Airport Details
Location
Runway Information
Flight Planning Tools
Nearby Airports
About Long Island Mac Arthur Airport
Overview
Long Island MacArthur Airport serves Suffolk County in New York, providing a critical transportation hub for Long Island's eastern regions. Located at 99 feet MSL with coordinates 40.795200, -73.100197, the airport offers four asphalt runways supporting various aviation operations. As a medium-sized airport, it provides essential infrastructure for general aviation, commercial, and regional aircraft.
Flying Conditions
Weather observations indicate predominantly favorable flying conditions, with 82.8% of recorded METARs reporting VFR conditions. Prevailing westerly winds at an average of 9.6 knots create stable approach environments. Temperature ranges from -11°C to 29°C suggest significant seasonal variation, with December, September, and November presenting the most consistently favorable VFR weather conditions.
Notable Features
The airport features four runways with substantial length variations: 06/24 at 7,006 feet, 10/28 at 5,034 feet, and two parallel runways 15L/33R and 15R/33L at 3,175 and 5,186 feet respectively. All runways demonstrate 100% favorable wind alignment, with modest average crosswind components ranging between 5.5 and 6.4 knots. This configuration provides pilots multiple landing options under varying wind conditions.
Approach Considerations
Wind data suggests a consistent westerly wind pattern, which typically favors runways oriented west-east and north-south. Visibility averages 9.4 statute miles, with only 2.2% of observations showing conditions below 3 miles and minimal fog occurrence at 1.2%. Pilots should anticipate generally stable approach conditions with multiple runway options for safe landing.
Data Sources & Accuracy: Airport information sourced from OurAirports.com, a collaborative database of worldwide airport data. Weather data from official aviation weather services including NOAA Aviation Weather Center and international METAR/TAF providers. Information is updated regularly but pilots should always verify current conditions and NOTAMs through official channels before flight operations.
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Recommended guides based on current conditions at KISP
Official Data Sources
Disclaimer: Data is provided for informational purposes only. Pilots must verify all information through official sources before flight operations. Weather conditions change rapidly; always obtain a current briefing from approved weather services.