KHDN Yampa Valley

WIND_INFERRED 90%

Runway 10 — favored by the wind (8 kt at 100° 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. No ADS-B traffic data available.

certainty: 90% evidence: NONE no tower now Class E

Wind 100° true at 8 kt · VFR · 79 min old

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10 99% 10000 ft · 8 kt head, 2 kt x-left · right traffic

28 <1% 10000 ft · 8 kt TAIL, 2 kt x-right

Active NOTAMs affecting runways

APCH OTS RWY 10 until 10-30 20:00Z

NAV ILS RWY 10 U/S

Why — evidence behind this answer

Runway 10

WIND 8 kt headwind, 2 kt left crosswind 79 min ago +1.02

Runway 28

WIND 8 kt TAILWIND, 2 kt right crosswind 79 min ago -6.03

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	79 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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KHDN field & runways

Yampa Valley, Hayden, Colorado. Field elevation 6606 ft. Class E airspace. Non-towered (NON-ATCT). Magnetic variation 10.0°E on record, 8.7°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 0.083°/year west — about 1° every 12 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
10	113.8°	105.1°	runway 11 by the rule today · 5.1° past	10,000 ft	ASPH	right	ILS
28	293.8°	285.1°	runway 29 by the rule today · 5.1° past	10,000 ft	ASPH	left

Generated 09:14:55Z · auto-refreshes · JSON

KHDN ☆ Yampa Valley