O88 Rio Vista 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. ADS-B tracking just started here — traffic history is still building. No weather observation available.

certainty: — evidence: NONE no tower now

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25 37% 4199 ft · right traffic · calm-wind rwy

7 23% 4199 ft

15 20% 2199 ft

33 20% 2199 ft · right traffic

Active NOTAMs affecting runways

LIGHTING RWY 25 until 02-10 21:11Z

RWY 25 RWY END ID LGT U/S

Why — evidence behind this answer

Runway 25

PRIOR 25 is the designated calm-wind runway +0.50
PRIOR runway length 4199 ft +0.07

Runway 7

PRIOR runway length 4199 ft +0.07

Runway 15

PRIOR runway length 2199 ft -0.07

Runway 33

PRIOR runway length 2199 ft -0.07

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	UNAVAILABLE		No weather observation found
ADSB	WARMING_UP	3756 min	Only 0 min of track history so far
NOTAM	OK
CIFP	NOT_CONFIGURED		Instrument procedures: phase 4

Recent operations

No operations observed in the last hour. (Only 0 min of track history so far)

Was this right?

O88 field & runways

Rio Vista Muni, Rio Vista, California. Field elevation 22 ft. Non-towered (NON-ATCT). Magnetic variation 14.0°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 0.091°/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
15	160.1°	147.3°	matches	2,199 ft	ASPH
25	265.7°	252.9°	matches rule gives runway 26 in ~23 yr	4,199 ft	ASPH	right	calm-wind RY 25 CALM WIND RY.
33	340.1°	327.3°	matches	2,199 ft	ASPH	right
7	85.7°	72.9°	matches rule gives runway 8 in ~23 yr	4,199 ft	ASPH

Generated 09:13:39Z · auto-refreshes · JSON

O88 ☆ Rio Vista Muni