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Madison County Airport, Ohio

Small airport in Madison County, Ohio

Air quality

The air at Madison County Airport

Index 57, moderate, led by fine particles. Read at 10 PM from its reporting area, Columbus (OH), 25 miles off.

57Moderate
  • Fine particles (PM2.5)57Moderate-
  • Ozone17Good-
  • Coarse particles (PM10)56Moderate-

The days ahead

Good each day through Tue Oct 20, led by fine particles. Yesterday measured 59, moderate.

Smoke, the next 41 hours

Little smoke near the ground through Sat 2 PM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at Madison County Airport

None in the last 24 hours; 0.19 in over the last 3 days, to Thu 9 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.19in

Visibility

How far you can see at Madison County Airport, the next 41 hours

Visibility stays 7 miles or more through Sat 2 PM, lowest 8 miles Thu 10 PM.

FriSat

Airfield

Code
UYF
ICAO
KUYF
IATA
-
Field elevation
1,082 ft
Serves
London
Kind
Small airport
Scheduled service
No
Its own instrument
UYF
Wind now
From 200° at 8 mph, read 15 Oct, 22:35

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
09 / 274,000 ft75 ftAsphalt87° / 267°3 mph head, on 277 mph from the left
09271,000 ftN200° 8 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 London (UYF), Madison County Airport's own instrument, measure by measure, on the field's own clock.

Temperature

69 F at 10 PM; 69 F at its warmest, 5 PM, and 55 F at its coolest, 7 AM.

Now
69F
10 PM
Highest
69F
5 PM
Lowest
55F
7 AM
Temperature and Dew point at London, temperature from 55.4 to 69.2, the latest 68.9; dew point from 53.6 to 68.0, the latest 68.0, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF5055606570Oct 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 68 F, the air 97% saturated; the humidity ran from 70% at 2 PM to 100% at 11 PM Wednesday.

Dew point now
68F
10 PM
Humidity now
97%
Humidity, range
70 to 100%
Relative humidity at London, relative humidity from 70 to 100, the latest 97, in per cent.RELATIVE HUMIDITY%60708090100Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

Wind

8 mph from the south southwest at 10 PM; at its strongest 12 mph, 10 AM, with a gust of 17 mph at 9 PM.

Now
8mph
from the south southwest
Strongest
12mph
10 AM
Highest gust
17mph
9 PM
Wind and Gust at London, wind from 1 to 12, the latest 8; gust from 16 to 17, the latest 16, in miles an hour.WIND AND GUSTmph05101520Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PMWINDGUST
Wind direction at London, wind direction from 30 to 210, the latest 200, 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

29.93 inHg at 10 PM, falling 0.05 inHg over 3 hours; 0.20 inHg lower than a day before.

Now
29.93inHg
10 PM
3 hours
-0.05inHg
falling
24 hours
-0.20inHg
Pressure, altimeter at London, pressure, altimeter from 29.93 to 30.16, the latest 29.93, in inches of mercury.PRESSURE, ALTIMETERinHg29.9030.0030.1030.20Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

Visibility

Down to 7 miles at 11 PM Wednesday; 7 miles now.

Now
7mi
Lowest
7mi
11 PM Wednesday
Hours under a mile
0
Visibility at London, visibility from 7.0 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 500 ft at 10 PM; a base was reported in 24 of the hours.

Lowest base now
500ft
Lowest in 24 hours
500ft
10 PM
Hours with a base reported
24
Lowest cloud base at London, lowest cloud base from 500 to 3,700, the latest 500, in feet.LOWEST CLOUD BASEft01,0002,0003,0004,000Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PMLIFRIFRMVFRVFR

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

Precipitation

None measured in the gauge in the last 24 hours.

Last 24 hours
0.00in
Wettest hour
-
Hours with some
0

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

London: 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 Madison County 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

LondonUYF

At an airfield/0.0 mi away/1,051 ft/31 ft below here

temp, wind, gust, visibility, precip, pressure

Molly Caren #1 ScanMOLO1

At a river or reservoir gauge/1.4 mi away/1,060 ft/22 ft below here

temp, wind, gust, humidity, pressure

Molly Caren #1S2014

At a soil climate station/1.4 mi away/1,060 ft/22 ft below here

temp, humidity, soil temp, soil moisture

117-IR70 @ SR29OH107

Beside a road/6.5 mi away/979 ft/103 ft below here

temp, pavement temp, wind, visibility, precip

measured daily2 instruments

London 3.9 NOH-MA-13

In a volunteer observer's own ground/1.4 mi away/1,029 ft/53 ft below here

precip, snowfall, snow depth

LondonLNDO1

At a cooperative observer's station/3.5 mi away/1,047 ft/35 ft below here

snowfall, snow depth, precip, high, low

0in

Snow on the ground

Measured at London (LNDO1), 3.5 miles from here, read 15 Oct, 08:00. measured daily

Elsewhere in Ohio

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

Near Madison County Airport

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

Airports near Madison County Airport

Every airport in the state

Near Madison County Airport

River and lake gauges