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29C
GRINDSTONE AIR HARBOR
PublicPUB

4 miles E of PORT AUSTIN, MI
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LiveATC.net: Live Air Traffic - From Their Headsets to You
Operational
44° 02' 48"N 82° 54' 52"W
640' MSL
1640' MSL
07W
None Listed
LANSING (LAN)
LAKE HURON
MINNEAPOLIS (ZMP)
11/27/25-12/25/25
KP58 (5nm) VFR
6:55 PM EST  
No Clouds
N/A
31°F
28°F
30.01"Hg
160° 5kts
AO1 SLP171 T10061022 10033 21017 50022
METAR KP58 172355Z AUTO 16005KT M01/M02 A3001 RMK AO1 SLP171 T10061022 10033 21017 50022
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FAA A/FD Pages

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Airport Diagrams

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Airport Minimums

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Departure Procedures

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Hotspot

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Standard Term. Arrival

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Instrument Approach

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Terminal Area Forecast

KMBS (59nm)
Wed, 12/17 6:21 PM EST
Wed, 12/17 7:00 PM EST - Thu, 12/18 7:00 PM EST
VFR
7:00 PM EST - 1:00 AM EST
Scattered 25,000'
6sm
170° 6kts
VFR
1:00 AM EST - 8:00 AM EST
Broken 25,000'
Scattered 7,000'
6sm
170° 9kts
MVFR
8:00 AM EST - 10:00 AM EST
Light Rain
Overcast 2,200'
Scattered 1,200'
6sm
170° 14kts
Gusts 24kts
IFR
10:00 AM EST - 3:00 PM EST
Mist
Overcast 800'
4sm
180° 15kts
Gusts 26kts
IFR
3:00 PM EST - 7:00 PM EST
Light Rain and Mist
Overcast 600'
3sm
180° 18kts
Gusts 30kts
TAF KMBS 172321Z 1800/1824 17006KT P6SM SCT250
   FM180600 17009KT P6SM SCT070 BKN250 WS015/20045KT
   FM181300 17014G24KT P6SM -RA SCT012 OVC022
   FM181500 18015G26KT 4SM BR OVC008
   FM182000 18018G30KT 3SM -RA BR OVC006
29C
EffectiveExpiresCategoryNOTAM
Domestic
11/19/25
0638Z
1/3/26
0637Z
!LAN 11/227 29C OBST TOWER LGT (ASN 2022-AGL-13663-OE) 435923N0824701W (6.6NM ESE 29C) 988FT (320FT AGL) U/S 2511190638-2601030637
No
UNATNDD
KELLY J HANSON
330 E HURON AVE
BAD AXE, MI 48413-1449
Phone: 989-269-7299
KELLY J HANSON
330 E HURON AVE
BAD AXE, MI 48413-1449
Phone: 989-269-7299
LANSING FSS (LAN)
Toll Free: 1-800-WX-BRIEF
LAN
--
--
N/A
Yes
No
No
None
No
None
None
None
None
None

Runway 18/36

1800 ft. x 85 ft.
TURF  
Fair 
NONE 
 
 
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  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
A110-3FOR CD CTC MINNEAPOLIS ARTCC AT 651-463-5588.
A110-4DEER & LRG BIRDS ON & INVOF ARPT.
GRINDSTONE AIR HARBOR (IATA: 29C) is a public airport located in PORT AUSTIN, MI.