ATIS Alerts

St Clair County International Airport (KPHN) Aviation Weather, METAR, TAF & ATIS Alerts

Live aviation weather for St Clair County International Airport in Port Huron, MI, including METAR, TAF, flight category, wind, visibility, ceiling, altimeter, runway crosswinds, and Telegram airport alerts.

St Clair County International Airport (KPHN) is a general aviation airport serving pilots in and around Port Huron, MI at 650 ft. KPHN reports its own METAR — decoded live on this page as flight category, wind, visibility, ceiling and altimeter. Its 4 runways (04, 10, 22, 28) — longest 5,104 ft — are checked against the current wind in the crosswind table below. Automated weather is broadcast on 118.375. Track KPHN in the ATIS Alerts Telegram bot to get a message when a new METAR changes the picture — flight category, wind, or ceiling past your selected minimums.

VFR
Observed 0155Z (9:55 PM EDT)live · refreshes every 60s
Wind
320° 3 kt
Visibility
10+ sm
Ceiling
Unlimited
Altimeter
29.82"
Temp / Dew
19°C / 66°F
dew 14°C

Wind from the northwest (320°) at 3 kt, visibility 10+ statute miles, scattered clouds at 3,700 ft, temperature 19°C (66°F), altimeter 29.82 inHg. Conditions are Visual Flight Rules (VFR).

Raw METAR
METAR KPHN 290155Z AUTO 32003KT 10SM SCT037 19/14 A2982 RMK AO2

What changed at KPHN?

Since the 0135Z (9:35 PM EDT) report — compared automatically against the latest METAR.

No significant changes since the 0135Z report — conditions are holding steady.

This is exactly what ATIS Alerts watches for you — get a Telegram message when KPHN's weather changes, free →

Current pilot readout for KPHN

KPHN is currently VFR with winds from 320° at 3 knots, visibility 10+ statute miles, and no ceiling reported. The strongest crosswind component is currently on runway 04, about 3 knots. Density altitude is approximately 1,400 ft (field elevation 650 ft). KPHN does not publish a TAF — the nearest TAF station is KMTC, about 22 nm away.

⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →

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Runway wind check

Estimated head/tailwind and crosswind for each runway end from the current reported wind.

Use this section to quickly compare current wind alignment across available runways at KPHN. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.

RunwayHead / TailCrosswind
28FAV2 kt head2 kt right
041 kt head3 kt left
221 kt tail3 kt right
102 kt tail2 kt left

Open the crosswind calculator — try your own wind and runway numbers →

24-hour trend

Wind, ceiling and flight category over the last 24 hours.

Wind (kt)Gusts (kt)Bottom strip — flight category:VFRMVFRIFRLIFRNo report
0122302Z14Z01Z

Over the last 24 h: wind 03 kt, ceiling unlimitedunlimited.

KPHN weather radar

Live NEXRAD + lightning, with a 4-hour future-radar forecast — drag to pan, tap ⚡ to toggle lightning.

Live weather radar around St Clair County International Airport in Port Huron, MI: the NOAA/NWS NEXRAD composite updates about every five minutes, with NOAA lightning strike density overlaid. The loop plays the past 50 minutes, then continues into a future-radar forecast (+1 to +4 hours, NOAA HRRR model) so you can see where precipitation around KPHN is headed.

Loading…
Loading radar…

Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © OpenStreetMap © CARTO

Forecast frames (amber label) are HRRR model guidance, not observed radar. Lightning strike density appears as a blue-white glow when strikes are detected in view. Radar and lightning coverage are limited in parts of Alaska, Hawaii, and offshore areas. Not for navigation.

Pilot reports (PIREPs) within 100 NM of KPHN

Reported by pilots in flight over the past 6 hours — via aviationweather.gov.

PIREP2330Z (7:30 PM EDT) · 94 NM S of KPHN · 43,000 ft MSL · E55P
occasional moderate chop turbulence
Show raw report
LPR UA /OV DJB080015/TM 2330/FL430/TP E55P/TB OCNL MOD CHOP/RM ZOB
LPR UAHeader — reporting station and UA: a routine pilot report.
OV DJB080015Location — fix or navaid, optionally with a radial and distance in NM.
TM 2330Reported at 23:30 UTC.
FL430Altitude: 43,000 ft MSL.
TP E55PAircraft type reporting.
TB OCNL MOD CHOPTurbulence: occasional moderate chop.
RM ZOBRemarks.
PIREP2229Z (6:29 PM EDT) · 83 NM S of KPHN · during descent · A21N
Show raw report
CLE UA /OV 15 NW CLE/TM 2229/FLDURD/TP A21N/WX VMC/RM 075 AND BELOW
CLE UAHeader — reporting station and UA: a routine pilot report.
OV 15 NW CLELocation — fix or navaid, optionally with a radial and distance in NM.
TM 2229Reported at 22:29 UTC.
FLDURDReported during descent.
TP A21NAircraft type reporting.
WX VMCWeather and flight visibility observed.
RM 075 AND BELOWRemarks.
PIREP2208Z (6:08 PM EDT) · 76 NM SW of KPHN · 4,000 ft MSL · CRJ7
Show raw report
DTW UA /OV 20 SW DXO/TM 2208/FL040/TP CRJ7/SK 040BKN070/TB NEG
DTW UAHeader — reporting station and UA: a routine pilot report.
OV 20 SW DXOLocation — fix or navaid, optionally with a radial and distance in NM.
TM 2208Reported at 22:08 UTC.
FL040Altitude: 4,000 ft MSL.
TP CRJ7Aircraft type reporting.
SK 040BKN070Sky condition — cloud bases and tops in hundreds of feet MSL.
TB NEGTurbulence: none reported.
URGENT2155Z (5:55 PM EDT) · 63 NM E of KPHN · during descent · C172
Show raw report
YZ UUA /OV CYQS /TM 2155 /FLDURD /TP C172 /RM WS RWY 27 -/+ 15KTS
YZ UUAHeader — reporting station and UUA: an URGENT pilot report (severe conditions, wind shear, or similar).
OV CYQSLocation — fix or navaid, optionally with a radial and distance in NM.
TM 2155Reported at 21:55 UTC.
FLDURDReported during descent.
TP C172Aircraft type reporting.
RM WS RWY 27 -/+ 15KTSRemarks.
PIREP2154Z (5:54 PM EDT) · 45 NM W of KPHN · 3,700 ft MSL · P28B
Show raw report
FNT UA /OV FNT140012/TM 2154/FL037/TP P28B/SK B037 T060
FNT UAHeader — reporting station and UA: a routine pilot report.
OV FNT140012Location — fix or navaid, optionally with a radial and distance in NM.
TM 2154Reported at 21:54 UTC.
FL037Altitude: 3,700 ft MSL.
TP P28BAircraft type reporting.
SK B037 T060Sky condition — cloud bases and tops in hundreds of feet MSL.
PIREP2125Z (5:25 PM EDT) · 98 NM SW of KPHN · 9,500 ft MSL · RV8
Show raw report
TOL UA /OV KTOL /TM 2125 /FL095 /TP RV8 /TA 10 /WV 33024KT /RM BKN BLO
TOL UAHeader — reporting station and UA: a routine pilot report.
OV KTOLLocation — fix or navaid, optionally with a radial and distance in NM.
TM 2125Reported at 21:25 UTC.
FL095Altitude: 9,500 ft MSL.
TP RV8Aircraft type reporting.
TA 10Outside air temperature, °C.
WV 33024KTWind (direction/speed) or wind-shear remarks.
RM BKN BLORemarks.
PIREP2120Z (5:20 PM EDT) · 91 NM W of KPHN · 4,000 ft MSL · SR20
Show raw report
LAN UA /OV LAN/TM 2120/FL040/TP SR20/SK B040
LAN UAHeader — reporting station and UA: a routine pilot report.
OV LANLocation — fix or navaid, optionally with a radial and distance in NM.
TM 2120Reported at 21:20 UTC.
FL040Altitude: 4,000 ft MSL.
TP SR20Aircraft type reporting.
SK B040Sky condition — cloud bases and tops in hundreds of feet MSL.
PIREP2115Z (5:15 PM EDT) · 94 NM SW of KPHN · 3,000 ft MSL · DA40
Show raw report
JXN UA /OV JXN/TM 2115/FL030/TP DA40/SK B035
JXN UAHeader — reporting station and UA: a routine pilot report.
OV JXNLocation — fix or navaid, optionally with a radial and distance in NM.
TM 2115Reported at 21:15 UTC.
FL030Altitude: 3,000 ft MSL.
TP DA40Aircraft type reporting.
SK B035Sky condition — cloud bases and tops in hundreds of feet MSL.

⚠️ PIREPs are unverified pilot reports. Not for operational use — conditions change between reports.

Recent aviation weather trends at KPHN

From ATIS Alerts' hourly weather history.

Over the past 24 hours, KPHN reported a mix of conditions, most often marginal VFR across 72 observations, with 14 flight-category changes. The strongest gust reached 20 kt, the lowest ceiling was 700 ft. Wind most often came from the N.

Last 24 hours
VFR 42%MVFR 56%IFR 3%
Wind avg/max: 4/14 kt
Max gust: 20 kt
Lowest ceiling: 700 ft
Lowest vis:
Prevailing wind: N
Category changes: 14

Most recent change: MVFRVFR

Last 7 days
VFR 76%MVFR 17%IFR 6%LIFR 1%
Wind avg/max: 2/11 kt
Max gust: 17 kt
Lowest ceiling: 500 ft
Lowest vis: 0.5 sm
Prevailing wind: NW
Category changes: 34

Most recent change: MVFRVFR

Active Runway - past 30 days
04
48%
22
28%
28
21%
10
3%

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Airport facts

Reference data from the OurAirports dataset.

Type
General aviation airport
ICAO
KPHN
IATA
PHN
FAA LID
PHN
City
Port Huron
State
Michigan
Country
United States
Elevation
650 ft
Coordinates
42.9110, -82.5289
Runways
4
Longest runway
5,104 ft
Weather reporting
Reports METAR
TAF
Nearest KMTC
AWOS/ASOS
118.375 MHz
Time zone
America/Detroit
Next sunset
22h 50m

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Nearby airports

Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.

RC flying fields nearby

AMA model-aircraft club fields around this airport — live wind, crosswind & flyability on each page.

All RC flying fields →

See all Michigan airports →

Historical Flying Weather

2006–2025 · ATIS Alerts Flying Weather Index

Based on historical observations from 2006–2025, KPHN reported VFR conditions during about 74.5% of valid daylight observations, with an estimated 234 VFR flying days a year. June had the most VFR weather; December had the most instrument conditions. Surface winds averaged 4.9 kt, calm 26.9% of the time.

VFR Score
37
Wind Score
77
Reliability Score
30
National VFR rank
#1139 of 1,400
Regional rank
#53
State rank
#12
Full historical breakdown
Daylight VFR
74.5%
MVFR
18.0%
IFR
6.8%
LIFR
4.6%
Est. VFR days/yr
234
Most VFR month
June
Fewest VFR month
December
Median ceiling
3,100 ft
Median visibility
10 sm
Calm wind
26.9%
Median wind
5 kt
Gusty hours
16.1%
Crosswind >15 kt
0.0%
Fog/mist days/yr
178
Thunderstorm days/yr
0
Summer density alt
1,903 ft

Flight category by month

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDec
VFRMVFRIFRLIFR
KPHN monthly flight-category distribution, 2006–2025
MonthVFR %MVFR %IFR %LIFR %
Jan53.831.19.95.3
Feb63.623.09.04.3
Mar70.219.46.44.0
Apr77.913.55.72.9
May79.811.84.93.5
Jun81.710.94.92.6
Jul78.711.95.34.1
Aug74.712.96.06.4
Sep69.315.17.48.3
Oct74.015.76.34.0
Nov70.719.16.53.7
Dec53.031.79.16.3

Average wind by month

037JanFebMarAprMayJunJulAugSepOctNovDec
KPHN average wind by month, 2006–2025
MonthMean wind (kt)
Jan5.7 kt
Feb5.8 kt
Mar6.1 kt
Apr6.2 kt
May5.0 kt
Jun4.1 kt
Jul3.3 kt
Aug3.3 kt
Sep3.6 kt
Oct4.7 kt
Nov5.3 kt
Dec5.4 kt

Historical summary of past observations — not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.

KPHN weather — frequently asked

What runways are available at KPHN?+

KPHN has 4 runways — 04, 10, 22, 28; the longest is 5,104 ft. This page computes the live crosswind for each runway end from the current wind.

Does KPHN report its own weather?+

Yes — St Clair County International Airport has its own weather station and publishes METAR observations, which this page decodes live.

Does KPHN have a TAF?+

No — KPHN does not publish its own TAF. The nearest TAF station is KMTC, about 22 nm away.

Does KPHN broadcast D-ATIS?+

No — KPHN does not broadcast D-ATIS. Alerts for KPHN from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR instead.

Pilot PIREPs for St Clair County International Airport (KPHN)

Community-submitted

Community-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.

Read recent community-submitted pilot notes for St Clair County International Airport, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.

⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.

No Pilot PIREPs have been submitted for KPHN yet. Recently flew here? Help the next pilot by leaving a quick airport note.

Pilot PIREPs are community pilot notes for situational awareness only — not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.

From the ATIS Alerts team

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