KPHN St Clair County Intl

PROBABLE 68%

Runway 22 — wind slightly favors it, low confidence

Based mostly on wind; no traffic or ATIS to confirm. No D-ATIS feed here — a voice ATIS/AWOS may exist; check the frequency. ADS-B tracking just started here — traffic history is still building.

certainty: 68% evidence: NONE no tower now

Wind 260° true at 4 kt · VFR · 46 min old · from KMTC (22.8 nm away)

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

22 62% 5104 ft · 3 kt head, 3 kt x-right

4 38% 5104 ft · 3 kt TAIL, 3 kt x-left

10 CLOSED 4000 ft · 4 kt TAIL, 1 kt x-right

28 CLOSED 4000 ft · 4 kt head, 1 kt x-left

Active NOTAMs affecting runways

RWY CLOSED RWY 10/28 until 10-09 21:00Z

RWY 10/28 CLSD

Why — evidence behind this answer

Runway 22

WIND 3 kt headwind, 3 kt right crosswind 46 min ago +0.11

Runway 4

WIND 3 kt TAILWIND, 3 kt left crosswind 46 min ago -0.36

Runway 10

NOTAM 10 not considered — closed by NOTAM until 2100Z 09 Oct

Runway 28

NOTAM 28 not considered — closed by NOTAM until 2100Z 09 Oct

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	46 min	Nearest station KMTC (22.8 nm away)
ADSB	WARMING_UP	2389 min	Only 0 min of track history so far
NOTAM	OK
CIFP	NOT_CONFIGURED		Instrument procedures: phase 4

Recent operations

No operations observed in the last hour. (Only 0 min of track history so far)

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KPHN field & runways

St Clair County Intl, Port Huron, Michigan. Field elevation 650 ft. Non-towered (NON-ATCT). Magnetic variation 7.0°W on record, 8.0°W 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 0.005°/year east — about 1° every 200 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
10	94.7°	102.7°	matches	4,000 ft	ASPH	left	CLOSED
22	216.1°	224.0°	matches	5,104 ft	ASPH	left
28	274.7°	282.7°	matches	4,000 ft	ASPH	left	CLOSED
4	36.0°	44.0°	matches	5,104 ft	ASPH	left	ILS

Generated 08:41:26Z · auto-refreshes · JSON

KPHN ☆ St Clair County Intl