KSDM Brown Fld Muni

UNKNOWN

Unknown — not enough evidence to call a runway

We don't know, and saying so beats guessing. No D-ATIS feed here — a voice ATIS/AWOS may exist; check the frequency. No ADS-B traffic data available. Weather observation is 561 minutes old — treat with caution.

certainty: — evidence: NONE Class D

Wind 280° true at 8 kt · VFR · 561 min old

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

26R 31% 7972 ft · 8 kt head, 1 kt x-right · right traffic

8L 24% 7972 ft · 8 kt TAIL, 1 kt x-left

26L 24% 3185 ft · 8 kt head, 1 kt x-right

8R 20% 3185 ft · 8 kt TAIL, 1 kt x-left · right traffic

Why — evidence behind this answer

Runway 26R

PRIOR runway length 7972 ft +0.09
PRIOR 26R used 80% of the time in this wind bin (n=5) +0.07
WIND 8 kt headwind, 1 kt right crosswind 561 min ago +0.03

Runway 8L

WIND 8 kt TAILWIND, 1 kt left crosswind 561 min ago -0.15
PRIOR runway length 7972 ft +0.09

Runway 26L

PRIOR runway length 3185 ft -0.09
WIND 8 kt headwind, 1 kt right crosswind 561 min ago +0.03
PRIOR 26L used 20% of the time in this wind bin (n=5) -0.02

Runway 8R

WIND 8 kt TAILWIND, 1 kt left crosswind 561 min ago -0.15
PRIOR runway length 3185 ft -0.09

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	561 min
ADSB	UNAVAILABLE		No ADS-B track history here yet
NOTAM	OK
CIFP	NOT_CONFIGURED		Instrument procedures: phase 4

Recent operations

No operations observed in the last hour. (No ADS-B track history here yet)

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KSDM field & runways

Brown Fld Muni, San Diego, California. Field elevation 526 ft. Class D airspace. Towered. Magnetic variation 14.0°E on record, 10.8°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 0.075°/year west — about 1° every 13 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
26L	275.6°	264.8°	matches rule gives runway 27 in ~2 yr	3,185 ft	ASPH	left
26R	275.6°	264.8°	matches rule gives runway 27 in ~2 yr	7,972 ft	ASPH-CONC	right
8L	95.6°	84.8°	matches rule gives runway 9 in ~2 yr	7,972 ft	ASPH-CONC	left
8R	95.6°	84.8°	matches rule gives runway 9 in ~2 yr	3,185 ft	ASPH	right

Generated 09:13:31Z · auto-refreshes · JSON

KSDM ☆ Brown Fld Muni