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Lewis University Airport, Illinois

Small airport in Will County, Illinois

Air quality

The air at Lewis University Airport

Index 20, good, led by fine particles. Read at 12 AM from its reporting area, South and West Suburbs (Chicago) (IL), 14 miles off.

20Good
  • Fine particles (PM2.5)20Good5.8 mi
  • Ozone9Good10 ppb6.9 mi

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 48, good.

Smoke, the next 43 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Lewis University Airport

0.39 in in the last 24 hours, 0.53 in over the last 3 days, to Fri 12 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.39in
Last 3 days
0.53in

Visibility

How far you can see at Lewis University Airport, the next 43 hours

Visibility stays 7 miles or more through Sat 7 PM, lowest 8 miles Fri 11 AM.

FriSat

Airfield

Code
LOT
ICAO
KLOT
IATA
LOT
Field elevation
679 ft
Serves
Chicago/Romeoville
Kind
Small airport
Scheduled service
No
Its own instrument
LOT
Wind now
From 280° at 13 mph, read 16 Oct, 00:35

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
02 / 206,500 ft100 ftConcrete14° / 194°1 mph head, on 2013 mph from the right
09 / 275,500 ft75 ftAsphalt90° / 270°13 mph head, on 272 mph from the right
022009272,000 ftN280° 13 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 Romeoville/Chi (LOT), Lewis University Airport's own instrument, measure by measure, on the field's own clock.

Temperature

57 F at 12 AM; 66 F at its warmest, 2 PM Thursday, and 57 F at its coolest, 12 AM.

Now
57F
12 AM
Highest
66F
2 PM Thursday
Lowest
57F
12 AM
Temperature and Dew point at Romeoville/Chi, temperature from 57.2 to 66.2, the latest 57.2; dew point from 55.4 to 66.2, the latest 56.0, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF556065703 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16TEMPERATUREDEW POINT

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

Humidity and dew point

A dew point of 56 F, the air 96% saturated; the humidity ran from 82% at 2 AM Thursday to 100% at 5 PM Thursday.

Dew point now
56F
12 AM
Humidity now
96%
Humidity, range
82 to 100%
Relative humidity at Romeoville/Chi, relative humidity from 82 to 100, the latest 96, in per cent.RELATIVE HUMIDITY%808590951003 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

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

Wind

16 mph from the west at 12 AM; at its strongest 16 mph, 12 AM, with a gust of 29 mph at 12 AM.

Now
16mph
from the west
Strongest
16mph
12 AM
Highest gust
29mph
12 AM
Wind and Gust at Romeoville/Chi, wind from 0 to 16, the latest 16; gust from 15 to 29, the latest 29, in miles an hour.WIND AND GUSTmph01020303 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16WINDGUST
Wind direction at Romeoville/Chi, wind direction from 50 to 360, the latest 280, in degrees.WIND DIRECTION°0901802703603 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

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

Pressure

29.87 inHg at 12 AM, rising 0.08 inHg over 3 hours; 0.29 inHg lower than a day before.

Now
29.87inHg
12 AM
3 hours
+0.08inHg
rising
24 hours
-0.29inHg
Pressure, altimeter at Romeoville/Chi, pressure, altimeter from 29.77 to 30.16, the latest 29.87, in inches of mercury.PRESSURE, ALTIMETERinHg29.7029.8029.9030.0030.1030.203 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

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

Visibility

Down to 0.3 miles at 4 PM Thursday, under a mile for 1 hour; 10 miles or more now.

Now
10+mi
Lowest
0.3mi
4 PM Thursday
Hours under a mile
1
Visibility at Romeoville/Chi, visibility from 0.3 to 10.0, the latest 10.0, in miles.VISIBILITYmi02.557.5103 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16LIFRIFRMVFRVFR

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

Cloud base

The lowest cloud base came down to 200 ft at 4 PM Thursday; a base was reported in 22 of the hours.

Lowest base now
-
Lowest in 24 hours
200ft
4 PM Thursday
Hours with a base reported
22
Lowest cloud base at Romeoville/Chi, lowest cloud base from 200 to 2,800, the latest 1,600, in feet.LOWEST CLOUD BASEft01,0002,0003,0003 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16LIFRIFRMVFR

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

Precipitation

0.01 in measured in the gauge, the most, 0.01 in, in the hour to 10 PM Thursday.

Last 24 hours
0.01in
Wettest hour
0.01in
10 PM Thursday
Hours with some
1
Precipitation at Romeoville/Chi, precipitation from 0.00 to 0.01, the latest 0.00, in inches.PRECIPITATIONin0.000.030.050.070.103 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

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

Romeoville/Chi: 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 Lewis University Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.1 miles away.

measured now3 instruments

Romeoville/ChiLOT

At an airfield/0.1 mi away/673 ft/6 ft below here

temp, wind, gust, visibility, precip, pressure

measured daily2 instruments

Romeoville WFOLOTI2

At a cooperative observer's station/0.6 mi away/659 ft/20 ft below here

snowfall, snow depth, precip, high, low

Romeoville 0.7 SWIL-WL-9

In a volunteer observer's own ground/2.2 mi away/669 ft/10 ft below here

precip, snowfall, snow depth

0in

Snow on the ground

Measured at Romeoville WFO (LOTI2), 0.6 miles from here, read 15 Oct, 18:54. measured daily

Elsewhere in Illinois

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

Near Lewis University Airport

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

Near Lewis University Airport