KRIW Central Wyoming 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 1461 minutes old — treat with caution. Wind calm — no directional preference.

certainty: — evidence: NONE no tower now Class E

Wind calm · VFR · 1461 min old

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10 26% 8204 ft

28 26% 8204 ft

1 24% 4800 ft

19 24% 4800 ft

Active NOTAMs affecting runways

APCH OTS RWY 28 until 10-28 20:00Z

NAV ILS RWY 28 LOC U/S

Why — evidence behind this answer

Runway 10

PRIOR runway length 8204 ft +0.05

Runway 28

PRIOR runway length 8204 ft +0.05

Runway 1

PRIOR runway length 4800 ft -0.05

Runway 19

PRIOR runway length 4800 ft -0.05

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	1461 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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KRIW field & runways

Central Wyoming Rgnl, Riverton, Wyoming. Field elevation 5516 ft. Class E airspace. Non-towered (NON-ATCT). Magnetic variation 10.0°E on record, 9.6°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 0.087°/year west — about 1° every 11 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	24.2°	14.7°	matches rule gives runway 2 in ~4 yr	4,800 ft	ASPH
10	114.4°	104.8°	matches rule gives runway 11 in ~2 yr	8,204 ft	ASPH	left
19	204.2°	194.7°	matches rule gives runway 20 in ~4 yr	4,800 ft	ASPH
28	294.4°	284.8°	matches rule gives runway 29 in ~2 yr	8,204 ft	ASPH	left	ILS

Generated 11:13:58Z · auto-refreshes · JSON

KRIW ☆ Central Wyoming Rgnl