KRIW Central Wyoming Rgnl

WIND_INFERRED 80%

Runway 28 — favored by the wind (11 kt at 300° 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: 80% evidence: WEAK no tower now Class E

Wind 300° true at 11 kt · VFR · 29 min old

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

28 87% 8204 ft · 11 kt head, 1 kt x-right

1 8% 4800 ft · 1 kt head, 11 kt x-left

19 4% 4800 ft · 1 kt TAIL, 11 kt x-right

10 <1% 8204 ft · 11 kt TAIL, 1 kt x-left

Active NOTAMs affecting runways

APCH OTS RWY 10 until 10-13 15:04Z

IAP CENTRAL WYOMING RGNL, RIVERTON, WY.
VOR RWY 10, AMDT 10B...
VOR RWY 28, AMDT 10B...
PROCEDURE NA EXCEPT FOR ACFT EQUIPPED WITH SUITABLE RNAV SYSTEM WITH GPS,
RIW VOR/DME OUT OF SERVICE. 2610061330-2610131504EST

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

NAV ILS RWY 28 LOC U/S

Why — evidence behind this answer

Runway 28

WIND 11 kt headwind, 1 kt right crosswind 29 min ago +2.16
PRIOR runway length 8204 ft +0.05

Runway 1

WIND 1 kt headwind, 11 kt left crosswind 29 min ago -0.11
PRIOR runway length 4800 ft -0.05

Runway 19

WIND 1 kt TAILWIND, 11 kt right crosswind 29 min ago -0.70
PRIOR runway length 4800 ft -0.05

Runway 10

WIND 11 kt TAILWIND, 1 kt left crosswind 29 min ago -16.65
PRIOR runway length 8204 ft +0.05

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	29 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?

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 10:21:35Z · auto-refreshes · JSON

KRIW ☆ Central Wyoming Rgnl