WxDecoder

KMTN/MTN METAR & TAF Martin State Airport

Baltimore, MarylandElevation 21 ftMedium airport
CURRENT STATUS
VFR20 min old
No ceiling, visibility 10 SM.
FLIGHT CATEGORY
VFR
ceiling & visibility
WIND
340@3
steady
VISIBILITY
10 SM
16.1 km
CEILING
None
no BKN/OVC layer
DENSITY ALT
-1,237 ft
-1,258 ft vs field
CURRENT METAR

Decoded observation

Observed 0235Z (10:35 PM local) · 20 min old

KMTN is currently VFR. Winds are from the north at 3 knots. Visibility is 10 statute miles. There is no ceiling.

WIND
340° at 3 kt
Steady.
VISIBILITY
10 statute miles
16.1 km, good.
CEILING & SKY
CLR
FEW and SCT layers are not ceilings.
TEMP / DEWPOINT
9°C / 8°C
48°F / 46°F. 1°C spread.
ALTIMETER
30.47 inHg
1031.8 hPa, above standard.
WEATHER & HAZARDS
No significant hazards
No precipitation or obscuration reported.

Codes in this report: AUTO 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)
T00860076
precise temperature 8.6°C, dew point 7.6°C
TERMINAL AERODROME FORECAST

TAF timeline

Issued 2321Z (7:21 PM local) · valid to 0000Z (8:00 PM local)

KMTN forecast starts VFR at 00Z. Conditions are roughly steady over the period.

VFR
VFR
VFR
VFR
0000Z8:00 PM0448Z12:48 AM0936Z5:36 AM1424Z10:24 AM1912Z3:12 PM0000Z8:00 PM

Codes in this report: P6SM SKC BR FEW SCT

Tap any group to decode it.

FAA: no delays reported at MTN.

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

SUGGESTED RISK · TRAINING USE

Suggested risk level: Low

›No significant weather concerns in the current report.

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 VFR, wind from 340° at 3 kt, visibility 10 SM, ceiling none. Forecast suggests tonight clear, low near 44F, 0% chance of precipitation. Key risks: no significant hazards are highlighted right now, but always confirm against an official briefing.

DayConditionsTemp FWindGustsPrecipPilot note
Tonight Clear 44 W 2 kt – 0%
Monday Sunny 70/51 W 4 kt – 0%
Tuesday Sunny 68/48 N 7 kt – 0%
Wednesday Mostly Sunny 66/50 E 4 kt – 0%
Thursday Mostly Sunny 69/52 S 5 kt – 0%
Friday Sunny 74/53 W 4 kt – 0%
Saturday Mostly Sunny 71/56 E 4 kt – 4%
Sunday Mostly Cloudy then Chance Rain Showers 70 S 6 kt – 26%

Source: National Weather Service (office LWX). Forecast issued 0254Z.

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
1 runway · crosswind ranking
ON-FIELD METAR
NESW1533 340°340°3 kt340°340° 3340°
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
340° at 3 kt
Components computed from the current on-field METAR wind.
RECOMMENDED
RWY 333 kt headwind · 1 kt crosswind
RUNWAYS BY WIND · best end
33
HEAD
3 kt
CROSS
1 kt R
BEST
15
HEAD
3 kt tail
CROSS
1 kt L
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 6,999 ft

H1
Dimensions
60 x 60 ft
Surface
Concrete (fair)
RWY H1
15/33
Dimensions
6,999 x 150 ft
Surface
Asphalt (excellent)
Edge lights
HIGH
RWY 15135°T
ILSLOC/DME
REILYes
VGSIPAPI (PSIL)
Traffic patternLeft
RWY 33315°T
ILSILS/DME
REILYes
VGSIPAPI (PSIL)
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
-1,237 ft
Pressure altitude
-529 ft
Field elevation
21 ft MSL
Temperature
9°C (48°F)
Dewpoint
8°C (46°F)
Altimeter
30.47 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
2213Z 6:13 PM
Sunrise
1126Z 7:26 AM
Loggable night
2240Z (6:40 PM local) → 1059Z (6:59 AM local)
end of evening to start of morning civil twilight
Position lights required
2213Z (6:13 PM local) → 1126Z (7:26 AM local)
sunset to sunrise (91.209)
Night passenger currency
2313Z (7:13 PM local) → 1026Z (6:26 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

Martin State Airport is in Baltimore, Maryland. Field elevation 21 ft MSL. Airport facts are drawn from OurAirports and the FAA NASR dataset.

OPERATIONS & CONTACT
OwnershipPublicly owned
UseOpen to the public
TypeMedium airport
ManagerHAROLD A. FOWLER
Manager phone410-682-8800
AttendedDaily, 0600–2100
CHARTS & AIRSPACE
ICAO / IATAKMTN / MTN
SectionalWASHINGTON
Center (ARTCC)WASHINGTON
Flight service (AFSS)LEESBURG
RegionMaryland
CountryUnited States
Coordinates39.3257, -76.4138
Distance from city9 NM E
SERVICES & LIGHTING
FuelJet A+
Control towerTowered
Field lightingSee remarks
BeaconSunset to sunrise · White-green (lighted land airport)
CTAF121.300
UNICOM122.950
FREQUENCIES

Communications

119
POTOMAC APP/DEP
A/D
124.925
ATIS
ATIS
124.925
AWOS 3
AWOS
121.8
POTOMAC CLNC DEL
CLD
121.3
CTAF
CTAF
121.8
GND
GND
38.59
135 AG COMD POST
OPS
34.72
175 FG COMD POST
POST
121.3
TWR
TWR
122.95
UNICOM
UNIC
122.950
UNICOM
UNICOM

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

AIRCRAFT ACTIVITY

KMTN traffic patterns

2026-06-13 to 2026-10-23, 57 days observed · data 2026-10-23

High confidence
TRAFFIC VOLUME (30-DAY)
AVG LANDINGS/DAY
15.6
AVG OPS/DAY
25.5
Activity trend over 15 days: rising, from 6 to 60 operations per dayOperations trend (15 days)

Busiest day: Thu · Busiest month: Oct

FLEET MIX
Piston single 60%Helicopter 16%Jet 12%Unknown 7%Twin 3%Turboprop 2%

Mostly small piston aircraft.

TOP AIRCRAFT TYPES
›C172 (Piston single) · ~37 landings/mo
›C72R (Piston single) · ~30 landings/mo
›P28A (Piston single) · ~13 landings/mo
›AS50 (Helicopter) · ~8 landings/mo
›UNKN (Unknown) · ~7 landings/mo
LIKELY BASED AIRCRAFT
Low-confidence estimate

Aircraft likely based near this airport (estimate), mostly single-engine piston aircraft.

›C172 (Piston single)
›P28A (Piston single)
›C72R (Piston single)
›SR22 (Piston single)
›A139 (Helicopter)

This is an estimate based on repeated flight patterns, not registration data. Do not rely on it to identify specific aircraft or owners.

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.

KAPG Phillips Army Air Field
14 NM NE
VFR
KBWI Baltimore/Washington International Thurgood Marshall Airport
15 NM SW
VFR
KFME Fort Meade Executive Airport
22 NM SW
VFR
KCGS College Park Airport
31 NM SW
VFR
KESN Easton Airport / Newnam Field
35 NM SE
VFR
KGAI Montgomery County Airpark
36 NM W
VFR
AIRPORT REMARKS

Operational remarks

›NO ACFT ACCESS TO TWY S FM STRAWBERRY POINT RAMP.
›ARFF SVCS AVBL 24 HRS DAILY. FOR ARFF SVCS WHEN ATCT CLSD CTC ARFF STATION; CTAF OR 410-918-6257 / 410-918-6911.
›MARYLAND AVN ADMIN.
›RECREATIONAL SAILBOAT MASTS TO +50 FT & MOTOR BOATS IN WATERWAY AT AER 33 813 FT FM THR ON CNTRLN.
›BEARING STRENGTH RWY 15/33: ST175.
›TPA RECIPROCATING ENG ACFT 978 FT AGL; TURBOPROP & CIVIL JET ACFT 1478 FT AGL; MIL JET ACFT 1978 FT AGL.
›DUSK-DAWN. WHEN ATCT CLSD ACTVT REIL RWYS 15 & 33; HIRL RWY 15/33 - CTAF. WHEN ATCT CLSD ACTVT TWY F LGTS - UNICOM.
›PPR FOR PRACTICE TKOFS & LNDGS FOR ACFT WEIGHING MORE THAN 12500 LBS.
›MOWING OPS CONDUCTED DURG DALGT.
›ARPT CONDS UNMON 2300-0600.
›FOR CD WHEN TWR CLSD CTC POTOMAC APCH AT 866-429-5882.
›MILITARY: MISC: LTD RESOURCES AVBL FOR TRAN MIL ACFT.
›24 HR SELF SERVE 100LL AVBL WITH CREDIT CARD. HELIS NOT AUTH TO ACES THE 100-LL SELF SVC STN UNDER OWN PWR.
›MILITARY: CAUTION: BASH II IN EFFECT AUG-JAN.
›MILITARY: ANG: CALL COMD POST/RAVEN OPS 275.500 OR 139.900 10 MIN PRIOR TO LNDG. NO SPACE A, FLEET SVC, OR TRAN QTRS AVBL. PPR AFTER DUTY HR RQR OG/CC APVL. C-5/C-17 ACFT RSTRD TO TWY A. PPR FOR SVC AND USE OF ANG PRK RAMP ONLY, DSN 243-6630/6637/6444, C410-918-6630/6637/6444; AFTER DUTY HR CTC C443-421-3128.
›FOR ADDL INFO CTC AMGR 410-682-8800.
›BOAT MAST
›SEAGULLS ON & INVOF ARPT.
›UNUSBL BYD 5 DEGS EITHER SIDE OF CNTRLN.
›8100 FT AVBL FOR TKOF RWY 15 AND LNDG RWY 33 FOR MIL ACFT ONLY.
›NOISE ABATEMENT PROCS IN EFCT. WHEN ATCT CLSD NO PRACTICE LNDGS OR APCHS.
OFFICIAL LINKS & SOURCES
↗Official METAR on AviationWeather.gov
↗Search NOTAMs (official FAA NOTAM Search)
↗Wikipedia
↗KMTN on OurAirports
FREQUENTLY ASKED
Does KMTN have a METAR?
Yes. KMTN has a current METAR observation, decoded into plain English on this page.
Does KMTN have a TAF?
Yes, a TAF is issued for KMTN; the decoded forecast timeline is shown above.
What is the field elevation at KMTN?
KMTN sits at 21 ft MSL, which factors into the density-altitude estimate on this page.
Is this an official preflight weather briefing for KMTN?
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.