Los Alamitos Army Air Field

KSLI

Los Alamitos, US

Last Updated
May 15, 09:55Z

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
Recent 39 min ago
09:55Z

☀️ Day
MVFR
Flight Rules
17°C
Temperature
Dewpoint: 14°C
0 kt
8 SM
Visibility
1,500 ft
Ceiling
Above Ground Level
1014 hPa
QNH
Altimeter Setting

Raw METAR

METAR KSLI 150955Z AUTO 00000KT 8SM OVC015 17/14 A2993 RMK AO2 SLP138 T01690138

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 32 ft
OVC 1,500 ft AGL
☁️
OVC
Overcast (8/8 sky coverage)
1,500 ft
AGL (Above Ground)
1,532 ft AMSL

Weather Briefing

MVFR

Los Alamitos Army Air Field is currently reporting marginal VFR (MVFR) conditions with overcast skies at 1,500 feet and 8 SM visibility.

Wind Analysis

Winds are calm, presenting no crosswind concerns for any runway.

Visibility & Ceiling

Visibility is 8 SM. The ceiling is 1500 feet AGL (overcast), placing conditions in the MVFR category.

Temperature & Moisture

Temperature is 17°C (63°F) with a dewpoint of 14°C. The narrow temperature-dewpoint spread suggests high humidity and potential for visibility restrictions, especially during cooling periods.

Forecast Outlook

The TAF forecast covers the next 29 hours. Conditions are expected to fluctuate between VFR and MVFR. VFR pilots should be prepared for deteriorating conditions.

Pilot Recommendations

VFR pilots should exercise caution. Consider filing IFR if instrument rated, or postponing the flight if conditions are expected to deteriorate further. 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.

QNH
1014 hPa
Sea Level Pressure
For altitude above MSL
QFE
1013 hPa
Field Pressure
Height above aerodrome (32 ft)
Pressure Alt
10 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 258 ft
ISA Deviation: +2.1°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF AMD KSLI 142251Z 1422/1603 VRB06KT 9999 FEW030 QNH3000INS BECMG 1509/1510 18503KT 9999 BKN010 OVC015 QNH2996INS BECMG 1518/1519 17504KT FEW015 SCT025 QNH2997INS TX21/1422Z TN16/1508Z
Upcoming Changes (Next 12 Hours)
10:34Z BASE
+0h
VFR VRB 6 kt
Visibility: 10+ km
18:00Z BECMG
+8h
VFR 175° 4 kt

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
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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
SLI
04L
22R
04R
22L
17
35

Runway Information

Runway Length Width Surface Heading Wind Component
04L/22R 5,900 ft 150 ft PEM 54°
0.0 kt 0.0 kt
54° angle
04R/22L 8,000 ft 200 ft ASP 55°
0.0 kt 0.0 kt
55° angle
17/35 2,500 ft 150 ft ASP 180°
0.0 kt 0.0 kt
180° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KSLI

8,121 observations | Sep 2025 - May 2026

Flight Rules Distribution

VFR
66.5%
MVFR
18.2%
IFR
10.2%
LIFR
5.1%

Los Alamitos Army Air Field typically experiences VFR conditions 66.5% of the time, though instrument-rated pilots will find IFR weather present approximately 15.3% of observations. Prevailing winds are from the S averaging 5.8 knots. Calm conditions occur 45.3% of the time. Temperature extremes range from 3°C to 35°C, reflecting significant seasonal variation. The best months for VFR flying are April, February, March.

Wind Analysis

Prevailing Direction: S (180°)
Average Speed: 5.8 kt
Maximum Recorded: 26 kt
Calm Winds: 45.3%
Direction Distribution:
N
3.4%
NE
6.9%
E
8.1%
SE
4.1%
S
12.8%
SW
10%
W
5.9%
NW
3.7%

Temperature Range

Average: 16.1°C
Range: 3°C to 35°C
3°C 35°C

Visibility

Average: 7.5 SM
Below 3 SM: 2.9%
Fog Frequency: 7.2%

Best Months for VFR

April February March

Runway Wind Analysis

Runway 04L/22R
Favorable wind: 100%
Avg crosswind: 3 kt
Runway 04R/22L
Favorable wind: 100%
Avg crosswind: 3 kt
Runway 17/35
Favorable wind: 100%
Avg crosswind: 3.9 kt

Statistics computed from 8,121 METAR observations (Sep 2025 - May 2026). Data sourced from official aviation weather services. Updated daily.

Los Alamitos Army Air Field - Airport Information

Airport Details

ICAO Code: KSLI
Type: medium airport
Status: active
Elevation: 32 ft MSL

Location

City: Los Alamitos
Country: US
Latitude: 33.790001°
Longitude: -118.052002°
Time Zone: Etc/GMT+8

Runway Information

Runway 04L/22R
Length: 5,900 ft
Width: 150 ft
Surface: PEM
ILS: No
Runway 04R/22L
Length: 8,000 ft
Width: 200 ft
Surface: ASP
ILS: No
Runway 17/35
Length: 2,500 ft
Width: 150 ft
Surface: ASP
ILS: No

About Los Alamitos Army Air Field

Los Alamitos Army Air 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

Los Alamitos Army Air Field serves as a medium-sized airport located in Los Alamitos, California, situated at 32 feet above mean sea level. The field supports military aviation operations with three runways, offering robust infrastructure for diverse aircraft types. Its strategic location in Southern California provides critical aviation capabilities for regional military and potential support missions.

Flying Conditions

Weather conditions at KSLI demonstrate significant variability, with Visual Flight Rules (VFR) prevailing 61.8% of the time. Pilots can expect predominantly southerly winds averaging 5.5 knots, with calm conditions occurring 47.7% of observations. Temperature ranges from 3°C to 34°C, creating generally stable atmospheric conditions throughout the year.

Notable Features

The airport features three runways with substantial length variations: two primary runways at 5900 and 8000 feet of paved surface, and a shorter 2500-foot auxiliary runway. The geographic positioning enables flexible operations with consistent wind alignment, as all runways demonstrate 100% favorable wind conditions. Low elevation and coastal proximity contribute to predictable meteorological patterns.

Approach Considerations

All three runways offer favorable wind alignments with minimal crosswind challenges, averaging between 3-3.6 knots. Visibility typically exceeds 7.3 statute miles, with only 4.7% of observations presenting visibility below 3 miles. September, October, and January represent the most consistent VFR months, providing optimal approach and departure conditions for pilots.

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.