KSQL San Carlos

WIND_INFERRED 70%

Runway 30 — favored by the wind (3 kt at 300° true)

Based on wind only — no traffic or ATIS to confirm. No D-ATIS feed here — a voice ATIS/AWOS may exist; check the frequency.

certainty: 70% evidence: NONE Class D

Wind 300° true at 3 kt · VFR · 5 min old

▶ Listen live — ATIS/CTAF on LiveATC opens LiveATC’s own player · verify the broadcast yourself

30 74% 2621 ft · 3 kt head, 1 kt x-left · right traffic

12 26% 2621 ft · 3 kt TAIL, 1 kt x-right · calm-wind rwy

Why — evidence behind this answer

Runway 30

PRIOR 30 used 70% of the time in this wind bin (n=63) +0.71
WIND 3 kt headwind, 1 kt left crosswind 5 min ago +0.13

Runway 12

PRIOR 12 is the designated calm-wind runway +0.50
WIND 3 kt TAILWIND, 1 kt right crosswind 5 min ago -0.38
PRIOR 12 used 30% of the time in this wind bin (n=63) -0.31

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	5 min
ADSB	OK	1 min	GOOD
NOTAM	OK
CIFP	NOT_CONFIGURED		Instrument procedures: phase 4

Recent operations

No operations observed in the last hour.

Was this right?

KSQL field & runways

San Carlos, San Carlos, California. Field elevation 6 ft. Class D airspace. Towered. Magnetic variation 15.0°E on record, 12.8°E today.

The FAA's variation of record is the number this field was surveyed against; the second is where north points now, from WMM2025. It is moving 0.089°/year west — about 1° every 11 years — which is why runway numbers eventually stop matching their pavement.

Runway data from the FAA NASR 01 Oct 2026 cycle. Where NASR locates both thresholds, the true heading is the bearing between them rather than NASR's whole-degree alignment. Magnetic is that heading against *today's* declination from WMM2025, not the field's variation of record — so it can differ from the chart by the gap between the two shown above. The number painted on the runway is the one ATC uses.
Runway	True	Magnetic	Number	Length	Surface	Pattern	Notes
12	138.1°	125.3°	runway 13 by the rule today · 5.3° past	2,621 ft	ASPH	left	calm-wind CALM WIND RWY 12.
30	318.1°	305.3°	runway 31 by the rule today · 5.3° past	2,621 ft	ASPH	right

What KSQL usually does

Of 5,152 operations this service has observed at KSQL since 2026-08-25:

30 70% 3627 ops
12 30% 1525 ops

Observed by this service only — not an FAA statistic, and biased toward the hours and days it has been watching. It is shown because it is the same history the engine learns its local-convention prior from.

Generated 08:39:51Z · auto-refreshes · JSON

KSQL ☆ San Carlos