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Mexico Memorial Airport, Missouri

Small airport in Audrain County, Missouri

Air quality

The air at Mexico Memorial Airport

Index 13, good, led by ozone. Read at 9 PM from its reporting area, Mark Twain State Park (MO), 22 miles off.

13Good
  • Ozone13Good11 ppb21.8 mi
  • Coarse particles (PM10)1Good-
  • Nitrogen dioxide1Good1.5 ppb21.8 mi
  • Sulfur dioxide1Good1.3 ppb21.8 mi

The days ahead

Yesterday measured 29, good.

Smoke, the next 41 hours

No smoke near the ground through Sat 1 PM.

FriSat

Precipitation

What has fallen at Mexico Memorial Airport

0.23 in in the last 24 hours, 0.77 in over the last 3 days, to Thu 8 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.23in
Last 3 days
0.77in

Visibility

How far you can see at Mexico Memorial Airport, the next 41 hours

Visibility stays 8 miles or more through Sat 1 PM, lowest 8 miles Sat 8 AM.

FriSat

Airfield

Code
MYJ
ICAO
KMYJ
IATA
-
Field elevation
823 ft
Serves
Mexico
Kind
Small airport
Scheduled service
No
Its own instrument
MYJ
Wind now
From 310° at 17 mph, read 15 Oct, 21:15

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
06 / 245,501 ft100 ftConcrete66° / 246°7 mph head, on 2415 mph from the right
18 / 363,200 ft50 ftAsphalt and concrete182° / 2°10 mph head, on 3613 mph from the left
062418362,000 ftN310° 17 mph
Runways from their surveyed ends, north up, lengths and positions to scale; the rose in the corner is the wind now.

Measured here

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

Every hour from Mexico (MYJ), Mexico Memorial Airport's own instrument, measure by measure, on the field's own clock.

Temperature

55 F at 9 PM; 75 F at its warmest, 2 PM, and 55 F at its coolest, 9 PM.

Now
55F
9 PM
Highest
75F
2 PM
Lowest
55F
9 PM
Temperature and Dew point at Mexico, temperature from 55.4 to 75.2, the latest 55.4; dew point from 52.7 to 70.7, the latest 52.7, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF50607080Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PMTEMPERATUREDEW POINT

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

Humidity and dew point

A dew point of 53 F, the air 91% saturated; the humidity ran from 78% at 3 PM to 100% at 10 PM Wednesday.

Dew point now
53F
9 PM
Humidity now
91%
Humidity, range
78 to 100%
Relative humidity at Mexico, relative humidity from 78 to 100, the latest 91, in per cent.RELATIVE HUMIDITY%708090100Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

Wind

17 mph from the northwest at 9 PM; at its strongest 21 mph, 8 PM, with a gust of 32 mph at 8 PM.

Now
17mph
from the northwest
Strongest
21mph
8 PM
Highest gust
32mph
8 PM
Wind and Gust at Mexico, wind from 0 to 21, the latest 17; gust from 16 to 32, the latest 24, in miles an hour.WIND AND GUSTmph010203040Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PMWINDGUST
Wind direction at Mexico, wind direction from 40 to 320, the latest 320, in degrees.WIND DIRECTION°090180270360Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

Pressure

30.06 inHg at 9 PM, rising 0.14 inHg over 3 hours; 0.02 inHg lower than a day before.

Now
30.06inHg
9 PM
3 hours
+0.14inHg
rising
24 hours
-0.02inHg
Pressure, altimeter at Mexico, pressure, altimeter from 29.91 to 30.09, the latest 30.06, in inches of mercury.PRESSURE, ALTIMETERinHg29.9029.9530.0030.0530.10Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

Visibility

Down to 2 miles at 7 AM; 7 miles now.

Now
7mi
Lowest
2mi
7 AM
Hours under a mile
0
Visibility at Mexico, visibility from 2.0 to 10.0, the latest 7.0, in miles.VISIBILITYmi02.557.510Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PMLIFRIFRMVFRVFR

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

Cloud base

The lowest cloud base came down to 300 ft at 7 AM; a base was reported in 24 of the hours.

Lowest base now
1,600ft
Lowest in 24 hours
300ft
7 AM
Hours with a base reported
24
Lowest cloud base at Mexico, lowest cloud base from 300 to 11,000, the latest 1,600, in feet.LOWEST CLOUD BASEft05,00010,00015,000Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PMMVFRVFR

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

Precipitation

0.23 in measured in the gauge, the most, 0.14 in, in the hour to 7 AM.

Last 24 hours
0.23in
Wettest hour
0.14in
7 AM
Hours with some
6
Precipitation at Mexico, precipitation from 0.00 to 0.14, the latest 0.00, in inches.PRECIPITATIONin0.000.050.100.15Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

Mexico: every reading, the last 7 days, 30 days and the year, and how well it reports

What is measuring near here

The 5 instruments nearest Mexico Memorial 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 now3 instruments

MexicoMYJ

At an airfield/0.0 mi away/814 ft/9 ft below here

temp, wind, gust, visibility, precip, pressure

Cmrb Ltar-Mo ScanCTSM7

At a river or reservoir gauge/16.9 mi away/852 ft/29 ft above here

temp, wind, gust, humidity, pressure

Cmrb LtarS2195

At a soil climate station/16.9 mi away/871 ft/48 ft above here

temp, humidity, soil temp, soil moisture

measured daily2 instruments

Mexico 0.3 NNWMO-AN-1

In a volunteer observer's own ground/3.0 mi away/778 ft/45 ft below here

precip, snowfall, snow depth

MexicoMEXM7

At a cooperative observer's station/4.6 mi away/817 ft/6 ft below here

snowfall, snow depth, precip, high, low

-

Snow on the ground

Elsewhere in Missouri

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

Near Mexico Memorial Airport

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

Near Mexico Memorial Airport