Y31 West Branch Community

PROBABLE 67%

Runway 27 — wind slightly favors it, low confidence

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

certainty: 67% evidence: NONE no tower now

Wind 240° true at 3 kt · VFR · 3 min old · from KY31 (0.1 nm away)

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27 61% 5000 ft · 3 kt head, 1 kt x-left

9 39% 5000 ft · 3 kt TAIL, 1 kt x-right

Active NOTAMs affecting runways

LIGHTING RWY 27 until 10-31 23:59Z

RWY 27 PAPI U/S

LIGHTING RWY 9 until 10-31 23:59Z

RWY 09 PAPI U/S

Why — evidence behind this answer

Runway 27

WIND 3 kt headwind, 1 kt left crosswind 3 min ago +0.12

Runway 9

WIND 3 kt TAILWIND, 1 kt right crosswind 3 min ago -0.34

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	3 min	Nearest station KY31 (0.1 nm away)
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)

Was this right?

Y31 field & runways

West Branch Community, West Branch, Michigan. Field elevation 882 ft. Non-towered (NON-ATCT). Magnetic variation 6.0°W on record, 7.0°W 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 0.004°/year east — about 1° every 250 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
27	268.9°	275.9°	runway 28 by the rule today · 5.9° past	5,000 ft	ASPH	left
9	88.9°	95.9°	runway 10 by the rule today · 5.9° past	5,000 ft	ASPH	left

Generated 11:17:42Z · auto-refreshes · JSON

Y31 ☆ West Branch Community