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Martin State Airport, Maryland

Medium airport in Baltimore County, Maryland

Air quality

The air at Martin State Airport

Index 17, good, led by ozone. Read at 4 AM from its reporting area, Metro Baltimore (MD), 14 miles off.

17Good
  • Fine particles (PM2.5)2Good8.2 mi
  • Ozone17Good16 ppb3.7 mi
  • Nitrogen dioxide4Good4.1 ppb3.7 mi
  • Sulfur dioxide0Good0 ppb3.7 mi

The days ahead

Good each day through Sun Oct 18, led by fine particles. Yesterday measured 20, good.

Smoke, the next 41 hours

Little smoke near the ground through Sat 8 PM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at Martin State Airport

0.06 in in the last 24 hours, 0.09 in over the last 3 days, to Fri 3 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.06in
Last 3 days
0.09in

Visibility

How far you can see at Martin State Airport, the next 41 hours

Visibility stays 6 miles or more through Sat 8 PM, lowest 7 miles Fri 7 PM.

FriSat

Airfield

Code
MTN
ICAO
KMTN
IATA
MTN
Field elevation
21 ft
Serves
Baltimore
Kind
Medium airport
Scheduled service
No
Its own instrument
MTN
Wind now
Calm, read 16 Oct, 04:35

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
15 / 336,999 ft150 ftConcrete135° / 315°CalmCalm
15332,000 ftN
Runways from their surveyed ends, north up, lengths and positions to scale.

Measured here

What the airfield's own instrument measured, the last 24 hours

Every hour from Baltimore/Martin (MTN), Martin State Airport's own instrument, measure by measure, on the field's own clock.

Temperature

62 F at 4 AM; 66 F at its warmest, 5 AM Thursday, and 61 F at its coolest, 7 PM Thursday.

Now
62F
4 AM
Highest
66F
5 AM Thursday
Lowest
61F
7 PM Thursday
Temperature and Dew point at Baltimore/Martin, temperature from 60.8 to 66.4, the latest 62.1; dew point from 48.2 to 60.0, the latest 60.0, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF4550556065706 AM9 AM12 PM3 PM6 PM9 PMOct 163 AMTEMPERATUREDEW POINT

How it is measured: Stevenson screen and siting, Field Book FB-INS-009

Humidity and dew point

A dew point of 60 F, the air 93% saturated; the humidity ran from 56% at 10 AM Thursday to 93% at 4 AM.

Dew point now
60F
4 AM
Humidity now
93%
Humidity, range
56 to 93%
Relative humidity at Baltimore/Martin, relative humidity from 56 to 93, the latest 93, in per cent.RELATIVE HUMIDITY%50607080901006 AM9 AM12 PM3 PM6 PM9 PMOct 163 AM

How it is measured: Humidity variables, Field Book FB-WAT-002

Wind

2 mph from the southwest at 4 AM; at its strongest 8 mph, 11 PM Thursday, with a gust of 12 mph at 10 AM Thursday.

Now
2mph
from the southwest
Strongest
8mph
11 PM Thursday
Highest gust
12mph
10 AM Thursday
Wind and Gust at Baltimore/Martin, wind from 0 to 8, the latest 2; gust from 12 to 12, the latest 12, in miles an hour.WIND AND GUSTmph0510156 AM9 AM12 PM3 PM6 PM9 PMOct 163 AMWINDGUST
Wind direction at Baltimore/Martin, wind direction from 10 to 220, the latest 220, in degrees.WIND DIRECTION°0901802703606 AM9 AM12 PM3 PM6 PM9 PMOct 163 AM

How it is measured: Coriolis as geometry, Field Book FB-ENG-008

Pressure

30.02 inHg at 4 AM, falling 0.06 inHg over 3 hours; 0.12 inHg lower than a day before.

Now
30.02inHg
4 AM
3 hours
-0.06inHg
falling
24 hours
-0.12inHg
Pressure, altimeter at Baltimore/Martin, pressure, altimeter from 30.02 to 30.24, the latest 30.02, in inches of mercury.PRESSURE, ALTIMETERinHg30.0030.1030.2030.306 AM9 AM12 PM3 PM6 PM9 PMOct 163 AM

How it is measured: Hydrostatic balance, Field Book FB-ENG-003

Visibility

Down to 4 miles at 1 AM; 10 miles or more now.

Now
10+mi
Lowest
4mi
1 AM
Hours under a mile
0
Visibility at Baltimore/Martin, visibility from 4.0 to 10.0, the latest 10.0, in miles.VISIBILITYmi02.557.5106 AM9 AM12 PM3 PM6 PM9 PMOct 163 AMLIFRIFRMVFRVFR

How it is measured: Fog types, Field Book FB-WAT-020

Cloud base

The lowest cloud base came down to 700 ft at 2 AM; a base was reported in 22 of the hours.

Lowest base now
800ft
Lowest in 24 hours
700ft
2 AM
Hours with a base reported
22
Lowest cloud base at Baltimore/Martin, lowest cloud base from 700 to 12,000, the latest 800, in feet.LOWEST CLOUD BASEft05,00010,00015,0006 AM9 AM12 PM3 PM6 PM9 PMOct 163 AMMVFRVFR

How it is measured: Cloud classification, Field Book FB-SKY-001

Precipitation

0.02 in measured in the gauge, the most, 0.01 in, in the hour to 1 AM.

Last 24 hours
0.02in
Wettest hour
0.01in
1 AM
Hours with some
2
Precipitation at Baltimore/Martin, precipitation from 0.00 to 0.01, the latest 0.00, in inches.PRECIPITATIONin0.000.030.050.070.106 AM9 AM12 PM3 PM6 PM9 PMOct 163 AM

How it is measured: ASOS, Field Book FB-INS-002

Baltimore/Martin: every reading, the last 7 days, 30 days and the year, and how well it reports

What is measuring near here

The 6 instruments nearest Martin State Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.0 miles away.

measured now4 instruments

Baltimore/MartinMTN

At an airfield/0.0 mi away/23 ft/2 ft above here

temp, wind, gust, visibility, precip, pressure

MD-43 at MD-150MD063

Beside a road/0.7 mi away/23 ft/2 ft above here

temp, pavement temp, wind, visibility, precip

Nepp Site At ReisterstownRSTM2

At a river or reservoir gauge/5.1 mi away/0 ft/21 ft below here

temp, wind, gust, humidity, pressure

Powder MillS2049

At a soil climate station/31.7 mi away/105 ft/84 ft above here

temp, humidity, soil temp, soil moisture

measured daily2 instruments

White Marsh 2.3 ESEMD-BL-25

In a volunteer observer's own ground/3.1 mi away/49 ft/28 ft above here

precip, snowfall, snow depth

CylburCYLM2

At a cooperative observer's station/12.7 mi away/295 ft/274 ft above here

snowfall, snow depth, precip, high, low

-

Snow on the ground

Elsewhere in Maryland

21 places, each with its own forecast and its own instruments.

Near Martin State Airport

The nearest places, each with its own forecast and the instruments nearest it.

Near Martin State Airport