WxDecoder

KAMN/AMN METAR Gratiot Community Airport

Alma, MichiganElevation 754 ftSmall airport
CURRENT STATUS
IFR14 min old
No ceiling, visibility 1 1/2 SM, mist.
FLIGHT CATEGORY
IFR
ceiling & visibility
WIND
170@1
steady
VISIBILITY
1 1/2 SM
2.4 km
CEILING
None
no BKN/OVC layer
DENSITY ALT
-777 ft
-1,531 ft vs field
CURRENT METAR

Decoded observation

Observed 0936Z (5:36 AM local) · 14 min old

KAMN is currently IFR. Winds are from the south at 1 knots. Visibility is 1 1/2 statute miles. There is no ceiling. Reported weather: mist. Main concerns: Visibility 1.5 SM.

WIND
170° at 1 kt
Steady.
VISIBILITY
1 1/2 statute miles
2.4 km, low (IFR).
CEILING & SKY
CLR
FEW and SCT layers are not ceilings.
TEMP / DEWPOINT
5°C / 5°C
41°F / 41°F. 0°C spread.
ALTIMETER
30.44 inHg
1030.8 hPa, above standard.
WEATHER & HAZARDS
BR, LOW VIS
Mist reported.

Codes in this report: AUTO BR CLR RMK AO2

Hover or tap any group for a plain-English explanation.

REMARKS: DECODED
AO2
automated station with a precipitation discriminator (can tell rain from snow)
VIS 1V2 1/2
visibility varying between 1 and 2 1/2 statute miles
FAA: no delays reported at AMN.

Source: FAA System Operations (ASWS). Operational status only; verify with official FAA sources and NOTAMs.

SUGGESTED RISK · TRAINING USE

Suggested risk level: High

›Conditions are IFR.
›Low visibility: 1.5 SM.
›Mist reported.
›No TAF available for this airport.

A suggested risk level for training and situational awareness only, not a go/no-go authority. Verify with official sources and apply your personal minimums.

FORECAST & PILOT NOTES · SUPPLEMENTAL

Extended forecast and pilot notes

Current aviation conditions show flight category IFR, wind from 170° at 1 kt, visibility 1.5 SM, ceiling none. Forecast suggests sunday partly sunny, high near 70F, low near 43F, 4% chance of precipitation. Key risks: low visibility.

PILOT WEATHER NOTES
Low visibilityMETAR
Visibility 1.5 SM. Conditions may be unsuitable for VFR; review IFR options and alternates.
DayConditionsTemp FWindGustsPrecipPilot note
Sunday Partly Sunny 70/43 SSW 7 kt – 4%
Monday Mostly Cloudy 60/36 NNE 6 kt – 5%
Tuesday Mostly Cloudy 59/40 E 8 kt – 1%
Wednesday Mostly Sunny 72/50 S 9 kt – 15%
Thursday Chance Rain Showers 70/43 WSW 10 kt – 26%
Friday Mostly Sunny 71/49 SE 8 kt – 17%
Saturday Chance Rain Showers 70 S 9 kt – 27%

Source: National Weather Service (office GRR). Forecast issued 0950Z.

Radar

Radar data: NOAA/NWS MRMS composite reflectivity. For situational awareness only, not a substitute for an official weather briefing.

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RUNWAYS & WIND
2 runways · crosswind ranking
ON-FIELD METAR
NESW09271836 170°170°1 kt170°170° 1170°
READING THE BARB · SWIPE FOR MORE →
Calm
5 kt
10 kt
15 kt
20 kt
25 kt
30 kt
35 kt
40 kt
45 kt
50 kt
65 kt
75 kt
100 kt
105 kt
Half feather = 5 kt, full = 10 kt, filled pennant = 50 kt; add them up. The staff points the direction the wind blows from.
WIND USED
170° at 1 kt
Components computed from the current on-field METAR wind.
RECOMMENDED
RWY 181 kt headwind · no crosswind
RUNWAYS BY WIND · best end
18
HEAD
1 kt
CROSS
calm
BEST
09
HEAD
0 kt
CROSS
1 kt R
OK
27
HEAD
0 kt tail
CROSS
1 kt L
OK
36
HEAD
1 kt tail
CROSS
calm
OK
Components are estimates from the current METAR wind and runway heading. Verify with the Chart Supplement and NOTAMs.
RUNWAYS

Runway detail & declared distances

2 runways · longest 5,004 ft

09/27
Dimensions
5,004 x 75 ft
Surface
Asphalt (good)
Edge lights
MED
RWY 0990°T
ILSSDF
REILYes
VGSIPAPI (P4L)
Traffic patternLeft
RWY 27270°T
REILYes
VGSIPAPI (P4L)
Traffic patternLeft
18/36
Dimensions
3,198 x 75 ft
Surface
Asphalt (good)
Edge lights
MED
RWY 18180°T
Traffic patternLeft
RWY 360°T
Traffic patternLeft

Runway data from the FAA NASR dataset (effective 2026-06-11). Verify with the current Chart Supplement and NOTAMs.

FIELD CONDITIONS

Performance & density altitude

Density altitude
-777 ft
Pressure altitude
234 ft
Field elevation
754 ft MSL
Temperature
5°C (41°F)
Dewpoint
5°C (41°F)
Altimeter
30.44 inHg

Density altitude estimates how the aircraft performs versus standard atmosphere. Higher density altitude reduces climb performance and increases takeoff distance.

DAYLIGHT & NIGHT

Sun & logging windows

Sunset
2241Z 6:41 PM
Sunrise
1204Z 8:04 AM
Loggable night
2311Z (7:11 PM local) → 1135Z (7:35 AM local)
end of evening to start of morning civil twilight
Position lights required
2241Z (6:41 PM local) → 1204Z (8:04 AM local)
sunset to sunrise (91.209)
Night passenger currency
2341Z (7:41 PM local) → 1104Z (7:04 AM local)
1 hr after sunset to 1 hr before sunrise (61.57(b))

FAA definitions, shown in Zulu with airport-local time. Verify for your operation.

AIRPORT INFORMATION

Facility & services

Gratiot Community Airport is in Alma, Michigan. Field elevation 754 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPublicly owned
UseOpen to the public
TypeSmall airport
ManagerSCOTT MCDONALD
Manager phone989-463-5500
AttendedALL MON-SAT, 0830–1430
CHARTS & AIRSPACE
ICAO / IATAKAMN / AMN
SectionalDETROIT
Center (ARTCC)CLEVELAND
Flight service (AFSS)LANSING
RegionMichigan
CountryUnited States
Coordinates43.3221, -84.6880
Distance from city3 NM SW
SERVICES & LIGHTING
FuelJet A+
Control towerNon-towered
Field lightingSee remarks
BeaconSunset to sunrise · White-green (lighted land airport)
CTAF122.800
UNICOM122.800
FREQUENCIES

Communications

126.45
SAGINAW APP/DEP
A/D
124.175
AWOS 3
AWOS
119.25
CLNC DEL
CLD
122.8
CTAF/UNICOM
UNIC
122.800
CTAF
CTAF
122.800
UNICOM
UNICOM

Not all tower/ground/approach frequencies are in our datasets. Verify with the FAA Chart Supplement.

AIRCRAFT ACTIVITY

KAMN traffic patterns

2026-07-12 to 2026-09-26, 4 days observed · data 2026-10-23

Low confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
0.5
AVG OPS/DAY
1
Activity trend over 2 days: flat, from 1 to 1 operations per dayOperations trend (2 days)

Busiest day: Sat · Busiest month: Sep

FLEET MIX
Piston single 100%

Mostly small piston aircraft.

TOP AIRCRAFT TYPES
›C172 (Piston single) · ~1 landings/mo
›C150 (Piston single) · ~0 landings/mo
›PA30 (Twin) · ~0 landings/mo
Data limitations (4)
›ADS-B coverage is incomplete; counts are an observed lower bound, not official totals.
›Some aircraft do not transmit usable ADS-B and are not counted.
›Aircraft types and based estimates are inferred and may be wrong.
›This is not official ATC, FAA, or airport data.
NEARBY AIRPORTS

Weather reference stations

Current flight category at nearby reporting stations.

KMOP Mount Pleasant Municipal Airport
18 NM N
VFR
KMBS MBS International Airport
29 NM NE
VFR
KLAN Capital Region International Airport
33 NM S
MVFR
KGDW Gladwin Zettel Memorial Airport
40 NM N
VFR
KRQB Roben Hood Airport
43 NM NW
VFR
KGRR Gerald R. Ford International Airport
45 NM SW
VFR
AIRPORT REMARKS

Operational remarks

›DEER & LRG BIRDS ON & INVOF ARPT.
›FOR CD CTC GREAT LAKES APCH AT 269-459-3345, WHEN APCH CLSD CTC CLEVELAND ARTCC AT 440-774-0224/0490.
›ADMIN BLDG ACES, PRESS V, THEN III & II SIMUL, THEN I.
›CALL AHD FOR HNGR AVBL.
›ACTVT REIL RWY 09 & 27; PAPI RWY 09 & 27; MIRL RWY 09/27 & 18/36 - CTAF.
OFFICIAL LINKS & SOURCES
↗Official METAR on AviationWeather.gov
↗Search NOTAMs (official FAA NOTAM Search)
↗Official airport website
↗Wikipedia
↗KAMN on OurAirports
FREQUENTLY ASKED
Does KAMN have a METAR?
Yes. KAMN has a current METAR observation, decoded into plain English on this page.
Does KAMN have a TAF?
When KAMN issues a TAF, its decoded forecast timeline loads live on this page; otherwise use the nearest TAF-issuing field as a planning reference.
What is the field elevation at KAMN?
KAMN sits at 754 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for KAMN?
No. wxdecoder.com is for education and situational awareness only. It is not an official weather briefing or a substitute for official sources, NOTAM review, and pilot judgment.
This app is for aviation weather education, training, and situational awareness only. It is not a substitute for an official weather briefing, approved flight-planning software, flight service, dispatch procedures, current FAA regulations, or pilot judgment. Always verify weather with official sources before flight.