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ST CLAIR COUNTY INTL - Airport Diagram
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KPHN
ICAO KPHNIATA PHNLocal PHN
ST CLAIR COUNTY INTL
PublicPUB

5 miles SW of PORT HURON, MI, US
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Status
Operational
Coordinates
42° 54' 39"N 82° 31' 44"W
Elevation
650' MSL
Pattern Alt
1650' MSL
Mag Variation
8°W
Declination
7°W
Fuel
JET A (FSII), 100LL
FSS
LANSING (LAN)
Sectional
DETROIT
ARTCC
CLEVELAND (ZOB)
Data Effective
2/19/26-3/19/26
KPHN MVFR
4:35 PM EST  
Light Snow
Overcast 3,300'
Broken 2,400'
Broken 1,300'
3sm
32°F
27°F
30.01"Hg
310° 5kts
AO2
METAR KPHN 222135Z AUTO 31005KT 3SM -SN BKN013 BKN024 OVC033 00/M03 A3001 RMK AO2
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KPHN FBOs

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St. Clair County International Airport
UNICOM: 123.05
Phone: (810) 364-4187
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Titan
As of 2/6
 100LL JET A JET A (FSII) MOGAS UL94
Self Serve 6.00
Full Serve 6.60 5.30
Fuel Notes
Prices include tax
JET A is premixed with Prist (FSII).
Fuel Hours
Fuel services hours 7 a.m. - 5 p.m. EST, 24 hr Avgas self-serve
Volume Discounts
Callout after hours available, service fees apply (810-364-4187).

KPHN Aircraft Service & Maintenance

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Great Lakes Aviation Services LLC
Phone: (810) 364-2181
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Weather and Advisory

AWOS-3 118.375
(810) 364-7787

Common

CTAF 123.05
ACTVT MALSR RWY 04; REIL RWY 22, 10, & 28; PAPI RWY 10 & 28; HIRL RWY 04/22; MIRL RWY 10/28 - CTAF. PAPI RWY 04 & 22 OPR CONSLY.
UNICOM 123.05

Approach

SELFRIDGE APPROACH 119.6

Departure

SELFRIDGE DEPARTURE 119.6

Center

SELFRIDGE CENTER 126.525
HIGH, APCH/DEP SVC PRVDD BY CLEVELAND ARTCC (ZOB) ON FREQS 126.525/285.525 (ALGONAC RCAG) WHEN SELFRIDGE APCH CTL CLSD.

Terminal Area Forecast

CYZR (11nm)
Sun, 2/22 2:40 PM EST
Sun, 2/22 3:00 PM EST - Sun, 2/22 10:00 PM EST
IFR
3:00 PM EST - 5:00 PM EST
Light Snow
Overcast 3,000'
Broken 900'
1.75sm
320° 8kts
MVFR
Temporary 3:00 PM EST - 5:00 PM EST
Light Snow
Overcast 3,000'
Scattered 900'
6sm
Calm
MVFR
Temporary 5:00 PM EST - 7:00 PM EST
Light Snow
Broken 2,500'
6sm
Calm
IFR
Becoming 5:00 PM EST - 7:00 PM EST
Light Snow
Broken 2,500'
Broken 900'
2sm
320° 10kts
Gusts 20kts
IFR
5:00 PM EST - 10:00 PM EST
Light Snow
Broken 2,500'
Broken 900'
2sm
320° 8kts
IFR
7:00 PM EST - 8:00 PM EST
Light Snow
Overcast 800'
2sm
320° 10kts
Gusts 20kts
MVFR
Temporary 7:00 PM EST - 10:00 PM EST
Light Snow
Overcast 1,200'
6sm
Calm
IFR
Becoming 8:00 PM EST - 10:00 PM EST
Light Snow
Overcast 800'
2sm
320° 15kts
Gusts 25kts
TAF CYZR 221940Z 2220/2303 32008KT 1 3/4SM -SN BKN009 OVC030
   TEMPO 2220/2222 6SM -SN SCT009 OVC030
   FM222200 32008KT 2SM -SN BKN009 BKN025
   TEMPO 2222/2224 P6SM -SN BKN025
   BECMG 2222/2224 32010G20KT
   FM230000 32010G20KT 2SM -SN OVC008
   TEMPO 2300/2303 6SM -SN OVC012
   BECMG 2301/2303 32015G25KT RMK FCST BASED ON AUTO OBS. NXT FCST BY 230900Z
KPHN
EffectiveExpiresCategoryNOTAM
Domestic
2/22/26
1831Z
2/23/26
1831Z
!PHN 02/042 PHN TWY ALL FICON 1/2IN SLUSH BA MEDIUM TO POOR OBS AT 2602221831. COND NOT MNT 2602222000-2602231300. 2602221831-2602231831
2/22/26
1830Z
2/23/26
1830Z
Runway!PHN 02/041 PHN RWY 10 FICON 2/2/2 100 PCT 1/2IN SLUSH OBS AT 2602221830. COND NOT MNT 2602222000-2602231300. 2602221830-2602231830
2/22/26
1829Z
2/23/26
1829Z
Runway!PHN 02/040 PHN RWY 04 FICON 2/2/2 100 PCT 1/2IN SLUSH OBS AT 2602221829. COND NOT MNT 2602222000-2602231300. 2602221829-2602231829
2/22/26
1827Z
2/23/26
1827Z
!PHN 02/039 PHN APRON ALL FICON 1/2IN SLUSH BA MEDIUM TO POOR OBS AT 2602221827. COND NOT MNT 2602222000-2602231300. 2602221827-2602231827
1/31/26
2105Z
2/28/26
2359Z
!PHN 01/089 PHN TWY C BTN APCH END RWY 10 AND RWY 04/22 CLSD TO FIXED WING 2601312105-2602282359
1/31/26
2102Z
2/28/26
1300Z
!PHN 01/083 PHN AD AP SFC COND NOT REP 2601312102-2602281300
1/11/26
0836Z
5/11/26
0836Z
!PHN 01/023 PHN OBST TOWER LGT (ASR 1016710) 425802.00N0822825.00W (4.2NM NE PHN) 917.0FT (297.9FT AGL) U/S 2601110836-2605110836
11/13/25
2041Z
5/13/26
2359Z
Runway!PHN 11/014 PHN RWY 22 PAPI U/S 2511132041-2605132359
10/31/25
1608Z
4/1/26
2359Z
!PHN 10/007 PHN OBST TOWER LGT (ASR UNKNOWN) 425526.49N0822736.82W (3.5NM E PWKPHN) 872FT (275FT AGL) U/S 2510311608-2604012359
10/28/25
1605Z
5/31/26
2359Z
Runway!PHN 10/006 PHN RWY 10 PAPI U/S 2510281605-2605312359
No
0800-1700
UNATNDD MAJOR HOLS.
SAINT CLAIR COUNTY
201 MCMORRAN BLVD
PORT HURON, MI 48060
Phone: 810-364-6890
CATHERINE FIORE
177 ASH DR
KIMBALL, MI 48074
Phone: 810-364-6890
LANSING FSS (LAN)
Toll Free: 1-800-WX-BRIEF
PHN
--
ACTVT MALSR RWY 04; REIL RWY 22, 10, & 28; PAPI RWY 10 & 28; HIRL RWY 04/22; MIRL RWY 10/28 - CTAF. PAPI RWY 04 & 22 OPR CONSLY.
N/A
Yes - Lighted
Yes
Yes
Hanger, Tie-Down
NOT a Landing Rights Airport
Airport of Entry
Major
Major
None
None
None

Runway 04/22

5104 ft. x 100 ft.
ASPH  
Good 
GRVD 
HIGH 
 
40,000lbs 
55,000lbs 
90,000lbs 
-- 
  Runway 04 Runway 22
True Heading 36°216°
Traffic Pattern Left Left
Markings PIR PIR
Markings Condition GOOD GOOD
Latitude 42° 54' 17"N 42° 54' 57"N
Longitude 82° 32' 07"W 82° 31' 27"W
Elevation 640' 650'
Threshold Crossing Height 50 ft. AGL 45 ft. AGL
Visual Glide Path Angle 3° 3°
Visual Slope Indicator P4L P4L
Approach Lights MALSR
Centerline Lights No No
Runway End Identifier Lights No Yes

Runway 10/28

4000 ft. x 75 ft.
ASPH  
Good 
NONE 
MED 
 
16,000lbs 
-- 
-- 
-- 
  Runway 10 Runway 28
True Heading 95°275°
Traffic Pattern Left Left
Markings NPI NPI
Markings Condition FAIR FAIR
Latitude 42° 54' 44"N 42° 54' 41"N
Longitude 82° 32' 07"W 82° 31' 13"W
Elevation 643' 650'
Threshold Crossing Height 26 ft. AGL 33 ft. AGL
Visual Glide Path Angle 3° 3.5°
Visual Slope Indicator P4L P4L
Approach Lights
Centerline Lights No No
Runway End Identifier Lights Yes Yes
A110-1DEER & LRG BIRDS ON & INVOF ARPT.
A110-5TSATLC FLTS MUST NTFY US CUST AT 810-985-9541 ONE HR PRIOR TO ENTRY INTO THE US. NTFY US DEPT OF AGRICULTURE AT 810-985-6126 & AMGR 24 HRS PRIOR FOR DISPOSAL OF ACFT INTL TRASH.
A110-7FOR CD CTC SELFRIDGE APCH AT 586-239-5706, WHEN APCH CLSD CTC CLEVELAND ARTCC AT 440-774-0224/0490.
A17-M1UNATNDD MAJOR HOLS.
A24COML & CORPORATE LDG FEE WAIVED WITH FUEL PURCHASE.
A81-APTACTVT MALSR RWY 04; REIL RWY 22, 10, & 28; PAPI RWY 10 & 28; HIRL RWY 04/22; MIRL RWY 10/28 - CTAF. PAPI RWY 04 & 22 OPR CONSLY.
ST CLAIR COUNTY INTL (ICAO: KPHN, IATA: PHN) is a public airport located in PORT HURON, MI, US.