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Chester Airport, Connecticut

Small airport in Middlesex County, Connecticut

Air quality

The air at Chester Airport

Index 16, good, led by fine particles. Read at 11 PM from its reporting area, New Haven (CT), 22 miles off.

16Good
  • Fine particles (PM2.5)16Good-
  • Ozone16Good-
  • Coarse particles (PM10)7Good-

The days ahead

Good each day through Fri Oct 16, led by fine particles. Yesterday measured 53, moderate.

Smoke, the next 46 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at Chester Airport

None in the last 3 days, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

How far you can see at Chester Airport, the next 46 hours

Dense fog: visibility falls to 0.1 miles Fri 11 AM, under a mile for 10 hours.

FriSat

Airfield

Code
SNC
ICAO
KSNC
IATA
-
Field elevation
416 ft
Serves
Chester
Kind
Small airport
Scheduled service
No
Its own instrument
SNC
Wind now
Calm, read 15 Oct, 23:15

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
17 / 352,722 ft50 ftAsphalt161° / 341°CalmCalm
17351,000 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 Chester (SNC), Chester Airport's own instrument, measure by measure, on the field's own clock.

Temperature

50 F at 11 PM; 68 F at its warmest, 3 PM, and 49 F at its coolest, 9 PM.

Now
50F
11 PM
Highest
68F
3 PM
Lowest
49F
9 PM
Temperature and Dew point at Chester, temperature from 49.1 to 68.0, the latest 50.0; dew point from 34.4 to 50.0, the latest 48.2, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF3040506070Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PMFREEZINGTEMPERATUREDEW POINT

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

Humidity and dew point

A dew point of 48 F, the air 93% saturated; the humidity ran from 29% at 2 PM to 100% at 9 PM.

Dew point now
48F
11 PM
Humidity now
93%
Humidity, range
29 to 100%
Relative humidity at Chester, relative humidity from 29 to 100, the latest 93, in per cent.RELATIVE HUMIDITY%20406080100Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

Wind

Calm at 11 PM; at its strongest 12 mph, 12 AM, with a gust of 21 mph at 12 AM.

Now
0mph
calm
Strongest
12mph
12 AM
Highest gust
21mph
12 AM
Wind and Gust at Chester, wind from 0 to 12, the latest 0; gust from 12 to 21, the latest 13, in miles an hour.WIND AND GUSTmph0102030Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PMWINDGUST
Wind direction at Chester, wind direction from 20 to 360, the latest 160, 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

30.18 inHg at 11 PM, steady over 3 hours; 0.17 inHg higher than a day before.

Now
30.18inHg
11 PM
3 hours
-0.01inHg
steady
24 hours
+0.17inHg
Pressure, altimeter at Chester, pressure, altimeter from 30.01 to 30.22, the latest 30.18, in inches of mercury.PRESSURE, ALTIMETERinHg30.0030.1030.2030.30Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

Visibility

Down to 9 miles at 7 AM; 10 miles or more now.

Now
10+mi
Lowest
9mi
7 AM
Hours under a mile
0
Visibility at Chester, visibility from 9.0 to 10.0, the latest 10.0, 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 2,800 ft at 9 AM; a base was reported in 3 of the hours.

Lowest base now
-
Lowest in 24 hours
2,800ft
9 AM
Hours with a base reported
3
Lowest cloud base at Chester, lowest cloud base from 2,800 to 3,200, the latest 2,800, in feet.LOWEST CLOUD BASEft2,8002,9003,0003,1003,200Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PMMVFRVFR

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

Chester: 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 Chester 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

ChesterSNC

At an airfield/0.0 mi away/416 ft/level with here

temp, wind, gust, visibility, precip, pressure

HADDAM - 9SB - At Exit 8CT031

Beside a road/5.1 mi away/190 ft/226 ft below here

temp, pavement temp, wind, visibility, precip

measured daily2 instruments

Chester Center 2.7 WNWCT-MD-30

In a volunteer observer's own ground/2.5 mi away/489 ft/73 ft above here

precip, snowfall, snow depth

GuilfordGULC3

At a cooperative observer's station/10.9 mi away/24 ft/392 ft below here

snowfall, snow depth, precip, high, low

-

Snow on the ground

Elsewhere in Connecticut

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

Near Chester Airport

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

Near Chester Airport