Current Weather
Raw METAR
Clouds - Visual Profile
Weather Briefing
VFRLong Island Mac Arthur Airport is currently reporting visual flight rules (VFR) conditions with broken clouds at 25,000 feet and 10 SM visibility.
Wind Analysis
Winds are from the northwest (320°) at 7 knots. Runway 33 is favored with a 7-knot headwind and 1-knot crosswind component.
Visibility & Ceiling
Visibility is 10 SM. The ceiling is 25000 feet AGL (broken), well above standard VFR minimums.
Temperature & Moisture
Temperature is 34°C (93°F) with a dewpoint of 21°C, indicating relatively dry conditions. High temperatures at this elevation may result in significant density altitude effects. Pilots should calculate density altitude and adjust performance expectations accordingly.
Forecast Outlook
The TAF forecast covers the next 23 hours. The forecast shows a transition between VFR and IFR conditions. Pilots should monitor the forecast closely and have an alternate airport plan. Expected weather includes: Thunderstorm Rain, Light Thunderstorm Rain. Winds are forecast to reach up to 20 knots during the period. Expect variable wind speeds ranging from 4 to 20 knots. There is a 30% probability of IFR conditions with Thunderstorm Rain between 22:00Z and 00:00Z. There is a 30% probability of MVFR conditions with Light Thunderstorm Rain between 00:00Z and 04:00Z.
Pilot Recommendations
Conditions are favorable for visual flight. The forecast indicates conditions may deteriorate. Ensure you have fuel reserves and a viable alternate airport.
This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.
Forecast (TAF)
View Full TAF24-Hour Weather Evolution
- • Current conditions from METAR observations
- • Historical data from past 24 hours
- • No forecast or predicted data included
- • Data updated with each new METAR report
- • Hover for exact values and timestamps
- • Click legend items to toggle data series
- • Zoom and pan for detailed analysis
- • Units automatically converted to preferences
Airport Runway Layout
Runway Information
| Runway | Length | Width | Surface | Heading | Wind Component |
|---|---|---|---|---|---|
| 06/24 | 7,006 ft | 150 ft | ASP | 45° |
↑ 0.6 kt
•
↔ 7.0 kt
85° angle
|
| 10/28 | 5,034 ft | 150 ft | ASP | 90° |
↓ 4.5 kt
•
↔ 5.4 kt
130° angle
|
|
✈️ 15L/33R
Active: 33R
|
3,175 ft | 75 ft | ASP | 135° |
↑ 6.9 kt
•
↔ 1.2 kt
10° angle
|
|
✈️ 15R/33L
Active: 33L
|
5,186 ft | 150 ft | ASP | 135° |
↑ 6.9 kt
•
↔ 1.2 kt
10° angle
|
Weather Statistics - KISP
7,290 observations | Sep 2025 - Jul 2026Flight Rules Distribution
Long Island Mac Arthur Airport enjoys predominantly VFR conditions, with visual flight rules prevailing 81.2% of the time. Prevailing winds are from the SW averaging 9.5 knots, with gusts recorded up to 33 knots. Calm conditions occur 10.3% of the time. Temperature extremes range from -16°C to 34°C, reflecting significant seasonal variation. The best months for VFR flying are July, June, May.
Wind Analysis
Temperature Range
Visibility
Best Months for VFR
Runway Wind Analysis
Statistics computed from 7,290 METAR observations (Sep 2025 - Jul 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.
Learn More
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.