Bicycle Lake Army Air Field

KBYS / BYS

Fort Irwin/Barstow, US

Last Updated
May 15, 00:55Z

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
Aging 1 hour ago
00:55Z

🌙 Night
VFR
Flight Rules
34°C
Temperature
Dewpoint: -2°C
0 kt
10 SM
Visibility
Ceiling
Unlimited
1010 hPa
QNH
Altimeter Setting

Raw METAR

METAR KBYS 150055Z AUTO 00000KT 10SM CLR 34/M02 A2982 RMK AO2 SLP072 T03351023 $

Weather Briefing

VFR

Bicycle Lake Army Air Field is currently reporting visual flight rules (VFR) conditions with clear skies and 10 SM visibility. Note: This observation is 1 hours old and conditions may have changed.

Wind Analysis

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

Visibility & Ceiling

Visibility is 10 SM. Skies are clear with unlimited ceiling.

Temperature & Moisture

Temperature is 34°C (93°F) with a dewpoint of -2°C, indicating very dry conditions. High temperatures at this elevation may result in significant density altitude effects. Pilots should calculate density altitude and adjust performance expectations accordingly.

Pilot Recommendations

Conditions are favorable for visual flight.

This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.

QNH
1010 hPa
Sea Level Pressure
For altitude above MSL
QFE
932 hPa
Field Pressure
Height above aerodrome (2,350 ft)
Pressure Alt
2,448 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 5,292 ft (High - Reduced Performance)
ISA Deviation: +23.7°C

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
BYS
04
22
13
31

Runway Information

Runway Length Width Surface Heading Wind Component
04/22 9,500 ft 175 ft GRE 52°
0.0 kt 0.0 kt
52° angle
13/31 5,800 ft 175 ft GRE 140°
0.0 kt 0.0 kt
140° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KBYS

5,562 observations | Sep 2025 - May 2026

Flight Rules Distribution

VFR
96%
MVFR
3.3%
IFR
0.6%
LIFR
0.1%

Bicycle Lake Army Air Field enjoys predominantly VFR conditions, with visual flight rules prevailing 96% of the time. Prevailing winds are from the N averaging 8.2 knots, with gusts recorded up to 34 knots. Calm conditions occur 26.6% of the time. Temperature extremes range from -3°C to 39°C, reflecting significant seasonal variation. The best months for VFR flying are May, April, September.

Wind Analysis

Prevailing Direction: N (0°)
Average Speed: 8.2 kt
Maximum Recorded: 34 kt
Calm Winds: 26.6%
Direction Distribution:
N
18%
NE
5.2%
E
4.2%
SE
10.6%
S
13.8%
SW
8.6%
W
4.6%
NW
8.5%

Temperature Range

Average: 16.5°C
Range: -3°C to 39°C
-3°C 39°C

Visibility

Average: 9.7 SM
Below 3 SM: 0%
Fog Frequency: 0%

Best Months for VFR

May April September

Runway Wind Analysis

Runway 04/22
Favorable wind: 100%
Avg crosswind: 5 kt
Runway 13/31
Favorable wind: 100%
Avg crosswind: 5.3 kt

Statistics computed from 5,562 METAR observations (Sep 2025 - May 2026). Data sourced from official aviation weather services. Updated daily.

Bicycle Lake Army Air Field - Airport Information

Airport Details

ICAO Code: KBYS
IATA Code: BYS
Type: medium airport
Status: active
Elevation: 2,350 ft MSL

Location

City: Fort Irwin/Barstow
Country: US
Latitude: 35.280499°
Longitude: -116.629997°
Time Zone: Etc/GMT+8

Runway Information

Runway 04/22
Length: 9,500 ft
Width: 175 ft
Surface: GRE
ILS: No
Runway 13/31
Length: 5,800 ft
Width: 175 ft
Surface: GRE
ILS: No

About Bicycle Lake Army Air Field

Bicycle Lake 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

Bicycle Lake Army Air Field serves the Fort Irwin military installation in the Mojave Desert region of California. Located at an elevation of 2,350 feet MSL near Barstow, the airport provides critical support for military aviation training and operational activities. Its strategic location and substantial runway lengths make it a key facility for military aircraft operations.

Flying Conditions

Weather conditions at Bicycle Lake Army Air Field are predominantly favorable for VFR flight, with 94.1% of observations showing good visual conditions. Temperature ranges from -3°C to 37°C, creating diverse flying environments throughout the year. Wind patterns are primarily from the north, with an average speed of 7.2 knots and maximum gusts up to 32 knots, though calm conditions occur 32.3% of the time.

Notable Features

The airport features two substantial runways: Runway 04/22 at 9,500 feet and Runway 13/31 at 5,800 feet, both constructed with graded earth (GRE) surfaces. Its high desert location provides consistent wind conditions, with both runways showing 100% favorable wind alignments and low average crosswind components of 4.9 and 4.3 knots respectively. The elevated terrain and open desert environment characterize the airport's geographic setting.

Approach Considerations

Pilots can expect excellent visibility averaging 9.7 statute miles, with September, October, and December presenting the most consistently favorable VFR conditions. Both runways offer reliable wind alignment, minimizing crosswind challenges during approach and landing. The extensive runway lengths provide ample space for various aircraft operations, particularly for military training missions.

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.