5M5 Crystal Lake

PROBABLE 60%

Runway 13 — 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: 60% evidence: NONE no tower now

Wind 190° true at 4 kt · VFR · 23 min old · from K1K8 (29.9 nm away)

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

13 60% 3863 ft · 2 kt head, 3 kt x-right

31 40% 3863 ft · 2 kt TAIL, 3 kt x-left

Why — evidence behind this answer

Runway 13

WIND 2 kt headwind, 3 kt right crosswind 23 min ago +0.09

Runway 31

WIND 2 kt TAILWIND, 3 kt left crosswind 23 min ago -0.31

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	23 min	Nearest station K1K8 (29.9 nm away)
ADSB	UNAVAILABLE		No ADS-B track history here yet
NOTAM	ERROR		NOTAM source unreachable
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?

5M5 field & runways

Crystal Lake, Decatur, Arkansas. Field elevation 1178 ft. Non-towered (NON-ATCT). Magnetic variation 3.0°E on record, 1.0°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 0.071°/year west — about 1° every 14 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
13	134.8°	133.8°	matches rule gives runway 14 in ~17 yr	3,863 ft	ASPH	left
31	314.8°	313.8°	matches rule gives runway 32 in ~17 yr	3,863 ft	ASPH	left

Generated 11:18:24Z · auto-refreshes · JSON

5M5 ☆ Crystal Lake