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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 LIFR
6:55 AM EST  
Freezing Fog
Overcast 300'
0.25sm
28°F
27°F
30.27"Hg
Calm
AO2
METAR KPHN 041155Z AUTO 00000KT 1/4SM FZFG OVC003 M02/M03 A3027 RMK AO2
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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)
Wed, 3/4 3:40 AM EST
Wed, 3/4 4:00 AM EST - Wed, 3/4 4:00 PM EST
LIFR
4:00 AM EST - 8:00 AM EST
Freezing Fog
Obscured
0.13sm
VRB° 3kts
VFR
Becoming 8:00 AM EST - 12:00 PM EST
Few 1,200'
6sm
VRB° 3kts
VFR
12:00 PM EST - 4:00 PM EST
Few 2,000'
6sm
160° 5kts
TAF CYZR 040840Z 0409/0421 VRB03KT 1/8SM FZFG VV002
   BECMG 0413/0415 P6SM NSW FEW012
   FM041700 16005KT P6SM FEW020 RMK FCST BASED ON AUTO OBS. NXT FCST BY 041400Z
KPHN
EffectiveExpiresCategoryNOTAM
Domestic
3/2/26
1706Z
4/30/26
2359Z
!PHN 03/001 PHN TWY C BTN APCH END RWY 10 AND RWY 04/22 CLSD TO FIXED WING 2603021706-2604302359
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.