KPIR Pierre Rgnl

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. No ADS-B traffic data available. Weather observation is 571 minutes old — treat with caution.

certainty: — evidence: NONE no tower now Class E

Wind 200° true at 7 kt · VFR · 571 min old

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

25 26% 6880 ft · 4 kt head, 6 kt x-left

13 26% 6900 ft · 4 kt head, 6 kt x-right

31 24% 6900 ft · 4 kt TAIL, 6 kt x-left

7 24% 6880 ft · 4 kt TAIL, 6 kt x-right

Why — evidence behind this answer

Runway 25

WIND 4 kt headwind, 6 kt left crosswind 571 min ago +0.01

Runway 13

WIND 4 kt headwind, 6 kt right crosswind 571 min ago +0.01

Runway 31

WIND 4 kt TAILWIND, 6 kt left crosswind 571 min ago -0.04

Runway 7

WIND 4 kt TAILWIND, 6 kt right crosswind 571 min ago -0.04

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	571 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)

Was this right?

KPIR field & runways

Pierre Rgnl, Pierre, South Dakota. Field elevation 1744 ft. Class E airspace. Non-towered (NON-ATCT). Magnetic variation 8.0°E on record, 5.0°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 0.069°/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	140.7°	135.7°	runway 14 by the rule today · 5.7° past	6,900 ft	ASPH	left
25	257.1°	252.1°	matches rule gives runway 26 in ~42 yr	6,880 ft	ASPH	left
31	320.7°	315.7°	runway 32 by the rule today · 5.7° past	6,900 ft	ASPH	left	ILS
7	77.1°	72.1°	matches rule gives runway 8 in ~42 yr	6,880 ft	ASPH	left

Generated 12:24:17Z · auto-refreshes · JSON

KPIR ☆ Pierre Rgnl