Runway 34 at S31
Runway 34/16 at Lopez Island Airport (S31) in Lopez is a 2,905 ft, unlit, asph-g runway oriented 340°/160°. The runway is 61 ft wide. SkyMeter has observed 129 landings and 48 departures on this runway over the last 30 days, with approximately 0.0% of arrivals resulting in a go-around. Trace data shows an average final-approach slope of 3.3°, touchdowns averaging 1,966 ft past the threshold, a typical touchdown ground speed of 92 kt, a 4.2 kt average crosswind component.
Runway 34/16 at Lopez Island Airport (S31) in Lopez is a 2,905 ft, unlit, asph-g runway oriented 340°/160°. The runway is 61 ft wide. SkyMeter has observed 129 landings and 48 departures on this runway over the last 30 days, with approximately 0.0% of arrivals resulting in a go-around. Trace data shows an average final-approach slope of 3.3°, touchdowns averaging 1,966 ft past the threshold, a typical touchdown ground speed of 92 kt, a 4.2 kt average crosswind component.
Runway at a Glance
Arrival Volume
129 landings observed on Runway 34 in the last 30 days, alongside 48 departures.
Peak Hour
Busiest landing window observed at 18:00 with 11 arrivals on the recent sample.
Average Touchdown Zone
Aircraft touch down on average 1,966 ft from the threshold on Runway 34.
Light Crosswind Component
Average crosswind on landing is 4.2 kt at touchdown, measured against runway 34 alignment.
Approach Slope
Final-approach slope averages 3.3° on Runway 34, steeper than the standard 3°.
Landing Behavior and Touchdown Performance
The metrics below are computed from ADS-B trace data observed at Runway 34 over the last 30 days. Each value is shown only when at least 10 valid samples were available; sparse cells are hidden rather than estimated.
Hourly Landing Distribution
Recent observed landings on Runway 34 grouped by hour-of-day (UTC).
Approach Types and Categories
Aircraft approach runways using different procedures based on weather conditions, visibility, and available navigation equipment. An Instrument Landing System (ILS) approach provides precision horizontal and vertical guidance using ground-based radio signals, enabling aircraft to land in low visibility conditions. Visual approaches require pilots to maintain visual contact with the runway and surrounding terrain, typically used during clear weather. Area Navigation (RNAV) approaches use GPS technology to guide aircraft along specific flight paths.
Approach Categories Explained
Category (CAT) classifications define minimum visibility and decision height requirements for instrument approaches. Higher categories enable operations in lower visibility conditions.
Wind and Environmental Factors
Wind conditions directly impact runway operations, influencing approach difficulty, landing performance, and runway selection. Runway 34 benefits from favorable wind alignment, with prevailing winds creating minimal crosswind components for most operations. Average wind speeds of 12 knots pose no operational constraints for commercial aircraft.
24-Hour Wind Pattern
Wind patterns show typical diurnal variation with stronger winds during midday hours.
Related Pages
Airport Overview
View complete statistics for S31
Other Runways at S31
This is the only runway at S31.
Search Flights on Runway 34
Find specific flights that used this runway