North Island Naval Air Station-Halsey Field

KNZY / NZY

San Diego, US

Last Updated
Jun 10, 18:52Z

Military Airport

Restricted

This is a U.S. military installation. Civil aircraft operations are generally prohibited without prior authorization.

Access Notes:

Most military airfields closed to civil traffic; some joint-use exceptions exist

Consult official AIP (FAA AIP GEN 3.3) for current access procedures and restrictions.

Current Weather

Display Units
Fresh 14 min ago
18:52Z

🌇 Dusk
VFR
Flight Rules
21°C
Temperature
Dewpoint: 16°C
7 kt
200°
10 SM
Visibility
Ceiling
Unlimited
1011 hPa
QNH
Altimeter Setting

Raw METAR

METAR KNZY 101852Z 20007KT 10SM FEW015 21/16 A2985 RMK AO2 SLP106 T02110156

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 26 ft
FEW 1,500 ft AGL
🌤️
FEW
Few (1/8-2/8 sky coverage)
1,500 ft
AGL (Above Ground)
1,526 ft AMSL

Weather Briefing

VFR

North Island Naval Air Station-Halsey Field is currently reporting visual flight rules (VFR) conditions with few clouds at 1,500 feet and 10 SM visibility.

Wind Analysis

Winds are from the south-southwest (200°) at 7 knots. Runway 18/36 is favored with a 7-knot headwind and 2-knot crosswind component.

Visibility & Ceiling

Visibility is 10 SM. No ceiling exists. Cloud layers reported: few at 1,500 ft.

Temperature & Moisture

Temperature is 21°C (70°F) with a dewpoint of 16°C, indicating moderate moisture conditions.

Forecast Outlook

The TAF forecast covers the next 24 hours. The forecast shows a transition between VFR and IFR conditions. Pilots should monitor the forecast closely and have an alternate airport plan.

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.

QNH
1011 hPa
Sea Level Pressure
For altitude above MSL
QFE
1010 hPa
Field Pressure
Height above aerodrome (26 ft)
Pressure Alt
94 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 820 ft
ISA Deviation: +6.1°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF KNZY 101500Z 1015/1115 VRB06KT 9999 BKN013 QNH2982INS BECMG 1016/1018 22009KT 9999 SCT015 QNH2979INS FM110200 VRB06KT 9999 BKN011 QNH2980INS FM110600 VRB03KT 9999 OVC009 QNH2982INS TX21/1019Z TN18/1007Z FS30194
Upcoming Changes (Next 12 Hours)
19:05Z BASE
+0h
MVFR VRB 6 kt
Visibility: 10+ km
Ceiling: 1,300 ft
02:00Z FM110200
+7h
MVFR VRB 6 kt
Visibility: 10+ km
Ceiling: 1,100 ft
06:00Z FM110600
+11h
IFR VRB 3 kt
Visibility: 10+ km
Ceiling: 900 ft

24-Hour Weather Evolution

Loading weather data...
Data Sources
  • • Current conditions from METAR observations
  • • Historical data from past 24 hours
  • • No forecast or predicted data included
  • • Data updated with each new METAR report
Chart Features
  • • Hover for exact values and timestamps
  • • Click legend items to toggle data series
  • • Zoom and pan for detailed analysis
  • • Units automatically converted to preferences
Note: Future values beyond current TAF validity are estimates based on climatological data and trends. Always verify with current forecasts before flight operations.

Airport Runway Layout

N
NZY
11
29
18 ✈️
36

Runway Information

Runway Length Width Surface Heading Wind Component
11/29 7,500 ft 300 ft PEM 122°
1.5 kt 6.8 kt
78° angle
✈️ 18/36
Active: 18
8,000 ft 200 ft PEM 195°
6.6 kt 2.4 kt
20° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KNZY

10,777 observations | Sep 2025 - Jun 2026

Flight Rules Distribution

VFR
70.6%
MVFR
21%
IFR
5.6%
LIFR
2.8%

North Island Naval Air Station-Halsey Field typically experiences VFR conditions 70.6% of the time, though instrument-rated pilots will find IFR weather present approximately 8.4% of observations. Prevailing winds are from the NW averaging 6.6 knots. Calm conditions occur 20.4% of the time. Temperatures typically range between 7°C and 34°C with an average of 17°C. The best months for VFR flying are April, February, March.

Wind Analysis

Prevailing Direction: NW (315°)
Average Speed: 6.6 kt
Maximum Recorded: 30 kt
Calm Winds: 20.4%
Direction Distribution:
N
10.9%
NE
2.7%
E
5.4%
SE
4.7%
S
12.6%
SW
6.9%
W
16.2%
NW
20.2%

Temperature Range

Average: 17°C
Range: 7°C to 34°C
7°C 34°C

Visibility

Average: 9 SM
Below 3 SM: 1.5%
Fog Frequency: 2.6%

Best Months for VFR

April February March

Runway Wind Analysis

Runway 11/29
Favorable wind: 100%
Avg crosswind: 3.7 kt
Runway 18/36
Favorable wind: 100%
Avg crosswind: 4.2 kt

Statistics computed from 10,777 METAR observations (Sep 2025 - Jun 2026). Data sourced from official aviation weather services. Updated daily.

North Island Naval Air Station-Halsey Field - Airport Information

Airport Details

ICAO Code: KNZY
IATA Code: NZY
Type: medium airport
Status: active
Elevation: 26 ft MSL

Location

City: San Diego
Country: US
Latitude: 32.699200°
Longitude: -117.214996°
Time Zone: Etc/GMT+8

Runway Information

Runway 11/29
Length: 7,500 ft
Width: 300 ft
Surface: PEM
ILS: No
Runway 18/36
Length: 8,000 ft
Width: 200 ft
Surface: PEM
ILS: No

About North Island Naval Air Station-Halsey Field

North Island Naval Air Station-Halsey Field is a military facility. Civilian access may be restricted or require Prior Permission (PPR). Pilots should consult the US AIP for current access procedures and restrictions.

Overview

North Island Naval Air Station-Halsey Field is a medium-sized airport located in San Diego, California, serving naval aviation operations. Situated at 26 feet above mean sea level, the base is strategically positioned on the western edge of the continental United States. The airport features two substantial runways capable of supporting various military and potential civilian aircraft operations.

Flying Conditions

Weather conditions at KNZY are predominantly favorable for flying, with Visual Flight Rules (VFR) conditions present 65.9% of the time. Pilots can expect northwest winds averaging 6.4 knots, with occasional stronger gusts up to 30 knots. Temperature ranges from 7°C to 34°C, with best VFR conditions typically occurring in October, November, and January.

Notable Features

Both runways (11/29 and 18/36) offer excellent wind alignment, with 100% favorable wind coverage and minimal average crosswind conditions (3.7-3.8 knots). The airport's proximity to the Pacific Ocean influences its microclimate, with occasional fog events affecting 4% of observations and visibility dropping below 3 statute miles in 2.6% of recorded conditions.

Approach Considerations

Runway selection should consider the prevailing northwest winds, which dominate the local wind pattern. Both 7,500-foot (11/29) and 8,000-foot (18/36) runways provide substantial landing options with consistent wind characteristics. Pilots should be prepared for potential marine layer influences and verify current weather conditions before approach, given the airport's coastal location.

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.

Official Data Sources

Weather NOAA Aviation Weather Center • International METAR/TAF Network
Airports OurAirports.com • Public domain airport database
NOTAMs FAA NOTAM System • ICAO NOTAM Distribution
Last updated: Jan 1, 1970 12:00 AM UTC

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.