KTWF Joslin Fld/Magic Valley 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 1473 minutes old — treat with caution. Wind variable at 5 kt — no directional preference.

certainty: — evidence: NONE no tower now Class D

Wind variable 5 kt · VFR · 1473 min old

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26 28% 8704 ft

8 28% 8704 ft

12 22% 3224 ft

30 22% 3224 ft

Active NOTAMs affecting runways

LIGHTING RWY 26 until 10-23 20:00Z

RWY 26 PAPI U/S

APCH OTS RWY 26 until 02-19 17:28Z

IAP JOSLIN FLD/MAGIC VALLEY RGNL, TWIN FALLS, ID. ILS OR LOC RWY 26, AMDT 10B... S-LOC 26 DME REQUIRED EXCEPT FOR ACFT EQUIPPED WITH SUITABLE RNAV SYSTEM WITH GPS. STRIK (TW) LOM OUT OF SERVICE.

Why — evidence behind this answer

Runway 26

PRIOR runway length 8704 ft +0.10

Runway 8

PRIOR runway length 8704 ft +0.10

Runway 12

PRIOR runway length 3224 ft -0.10

Runway 30

PRIOR runway length 3224 ft -0.10

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	1473 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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KTWF field & runways

Joslin Fld/Magic Valley Rgnl, Twin Falls, Idaho. Field elevation 4153 ft. Class D airspace. Non-towered (ATCT-A/C). Magnetic variation 13.0°E on record, 11.9°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 0.094°/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
12	136.4°	124.5°	matches rule gives runway 13 in ~5 yr	3,224 ft	ASPH	left
26	271.3°	259.4°	matches	8,704 ft	ASPH	left	ILS
30	316.4°	304.5°	matches rule gives runway 31 in ~5 yr	3,224 ft	ASPH	left
8	91.3°	79.4°	matches	8,704 ft	ASPH	left

Generated 12:25:56Z · auto-refreshes · JSON

KTWF ☆ Joslin Fld/Magic Valley Rgnl