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29C
GRINDSTONE AIR HARBOR
Public
PUB
4 miles E of PORT AUSTIN, MI
View on
Map
Status
Operational
Coordinates
44° 02' 48"N
82° 54' 52"W
Elevation
640' MSL
Pattern Alt
1640' MSL
Mag Variation
07W
Fuel
None Listed
FSS
LANSING (LAN)
Sectional
LAKE HURON
ARTCC
MINNEAPOLIS (ZMP)
Data Effective
12/25/25-1/22/26
KP58 (5nm)
VFR
9:55 AM EST
RAW
No Clouds
Viz
N/A
Temp
35°F
Dew
34°F
Pres
29.98"Hg
Wind
150° 6kts
RMK
AO1 SLP162 T00170011 53005
METAR KP58 081455Z AUTO 15006KT 02/01 A2998 RMK AO1 SLP162 T00170011 53005
Services
Frequencies & Documents
Freqs & Docs
TAF
NOTAM
Operations
Runways
Remarks
Add Your Business
29C FBOs
No FBOs (Fixed Base Operators) are listed for this airport.
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Your Information
Business
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UNICOM
--
CTAF
122.9
No communication frequencies available for this airport.
FAA A/FD Pages
No Documents
Airport Diagrams
No Documents
Airport Minimums
No Documents
Departure Procedures
No Documents
Hotspot
No Documents
Standard Term. Arrival
No Documents
Instrument Approach
No Documents
Terminal Area Forecast
KMBS (59nm)
RAW
Reported
Thu, 1/8 6:42 AM EST
Valid
Thu, 1/8 7:00 AM EST - Fri, 1/9 7:00 AM EST
LIFR
7:00 AM EST - 8:00 AM EST
Fog
Obscured
Viz
0.5sm
Wind
180° 8kts
IFR
8:00 AM EST - 9:00 AM EST
Mist
Broken 600'
Viz
1sm
Wind
180° 8kts
IFR
9:00 AM EST - 11:00 AM EST
Mist
Broken 1,500'
Viz
2sm
Wind
180° 10kts
MVFR
Temporary
9:00 AM EST - 11:00 AM EST
Mist
Scattered 1,500'
Viz
4sm
Wind
Calm
VFR
11:00 AM EST - 8:00 PM EST
Broken 25,000'
Scattered 10,000'
Viz
6sm
Wind
180° 10kts
VFR
8:00 PM EST - 12:00 AM EST
Overcast 4,500'
Viz
6sm
Wind
160° 13kts
MVFR
12:00 AM EST - 7:00 AM EST
Light Rain
Overcast 2,500'
Viz
5sm
Wind
160° 13kts
Gusts 20kts
TAF KMBS 081142Z 0812/0912 18008KT 1/2SM FG VV003
FM081300 18008KT 1SM BR BKN006
FM081400 18010KT 2SM BR BKN015
TEMPO 0814/0816 4SM BR SCT015
FM081600 18010KT P6SM SCT100 BKN250
FM090100 16013KT P6SM OVC045
FM090500 16013G20KT 5SM -RA OVC025
29C
Effective
Expires
Category
NOTAM
Domestic
1/1/26
1838Z
2/15/26
1837Z
!LAN 01/025 29C OBST TOWER LGT (ASN 2022-AGL-13663-OE) 435923N0824701W (6.6NM ESE 29C) 988FT (320FT AGL) U/S 2601011838-2602151837
ATC Tower
No
Attendance
UNATNDD
Owner
KELLY J HANSON
330 E HURON AVE
BAD AXE, MI 48413-1449
Phone: 989-269-7299
Manager
KELLY J HANSON
330 E HURON AVE
BAD AXE, MI 48413-1449
Phone: 989-269-7299
FSS
LANSING FSS (LAN)
Toll Free: 1-800-WX-BRIEF
NOTAM
LAN
Light Schedule
--
Lights
--
Beacon
N/A
Wind Indicator
Yes
Segmented Cir.
No
Landing Fee
No
Parking
None
Int'l Operations
No
Airframe Repair
None
Pwrplant Repair
None
Bottled Oxygen
None
Bulk Oxygen
None
Other Services
None
Runway 18/36
Dimensions
1800 ft. x 85 ft.
Surface Type
TURF
Surface Cond
Fair
Treatment
NONE
Rwy Edge Lgts
Pavement Class
Single Wheel
--
Double Wheel
--
Double Tandem
--
Dual Dbl Tand
--
Runway 18
Runway 36
True Heading
178°
358°
Traffic Pattern
Markings
Markings Condition
Latitude
44° 02' 57"N
44° 02' 39"N
Longitude
82° 54' 52"W
82° 54' 51"W
Elevation
611'
626'
Threshold Crossing Height
--
--
Visual Glide Path Angle
--
--
Visual Slope Indicator
--
--
Approach Lights
Centerline Lights
Runway End Identifier Lights
A110-3
FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
A110-4
DEER & LRG BIRDS ON & INVOF ARPT.
GRINDSTONE AIR HARBOR (IATA: 29C) is a public airport located in PORT AUSTIN, MI.
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