KTVF Thief River Falls 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 4545 minutes old — treat with caution.

certainty: — evidence: NONE no tower now Class E

Wind 140° true at 8 kt · VFR · 4545 min old

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

13 26% 6504 ft · 8 kt head, 1 kt x-right

31 26% 6504 ft · 8 kt TAIL, 1 kt x-left

22 24% 4997 ft · 2 kt head, 8 kt x-left

4 24% 4997 ft · 2 kt TAIL, 8 kt x-right

Active NOTAMs affecting runways

LIGHTING RWY 13 until 10-09 20:00Z

RWY 13 PAPI HIGH INTST U/S

Why — evidence behind this answer

Runway 13

PRIOR runway length 6504 ft +0.03
WIND 8 kt headwind, 1 kt right crosswind 4545 min ago +0.00

Runway 31

PRIOR runway length 6504 ft +0.03
WIND 8 kt TAILWIND, 1 kt left crosswind 4545 min ago -0.00

Runway 22

PRIOR runway length 4997 ft -0.03
WIND 2 kt headwind, 8 kt left crosswind 4545 min ago +0.00

Runway 4

PRIOR runway length 4997 ft -0.03
WIND 2 kt TAILWIND, 8 kt right crosswind 4545 min ago -0.00

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	4545 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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KTVF field & runways

Thief River Falls Rgnl, Thief River Falls, Minnesota. Field elevation 1119 ft. Class E airspace. Non-towered (NON-ATCT). Magnetic variation 2.0°E on record, 2.0°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 0.043°/year west — about 1° every 23 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	134.9°	132.9°	matches rule gives runway 14 in ~50 yr	6,504 ft	ASPH	left
22	219.1°	217.1°	matches	4,997 ft	ASPH
31	314.9°	312.9°	matches rule gives runway 32 in ~50 yr	6,504 ft	ASPH	left	ILS
4	39.1°	37.1°	matches	4,997 ft	ASPH

Generated 08:40:57Z · auto-refreshes · JSON

KTVF ☆ Thief River Falls Rgnl