9D4 Deck

PROBABLE 68%

Runway 1 — 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. ADS-B tracking just started here — traffic history is still building.

certainty: 68% evidence: NONE no tower now

Wind 290° true at 5 kt · · 39 min old · from KMQS (31.1 nm away)

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

1 61% 3786 ft · 2 kt head, 4 kt x-left

19 39% 3786 ft · 2 kt TAIL, 4 kt x-right

Active NOTAMs affecting runways

APCH OTS until 04-29 02:28Z

DECK, MYERSTOWN, PA. VOR/DME OR GPS-A, AMDT 1E... VOR/DME PORTION NA EXCEPT FOR ACFT EQUIPPED WITH SUITABLE RNAV SYSTEM WITH GPS, RAV TACAN OUT OF SERVICE.

Why — evidence behind this answer

Runway 1

WIND 2 kt headwind, 5 kt left crosswind 39 min ago +0.09

Runway 19

WIND 2 kt TAILWIND, 5 kt right crosswind 39 min ago -0.35

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	39 min	Nearest station KMQS (31.1 nm away)
ADSB	WARMING_UP	1803 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?

9D4 field & runways

Deck, Myerstown, Pennsylvania. Field elevation 523 ft. Non-towered (NON-ATCT). Magnetic variation 9.0°W on record, 11.3°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 0.023°/year east — about 1° every 43 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
1	354.3°	5.6°	matches rule gives runway 36 in ~26 yr	3,786 ft	ASPH
19	174.3°	185.6°	matches rule gives runway 18 in ~26 yr	3,786 ft	ASPH

Generated 09:13:51Z · auto-refreshes · JSON

9D4 ☆ Deck