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Ellington Airport, Texas

Medium airport in Harris County, Texas

Air quality

The air at Ellington Airport

Index 44, good, led by fine particles. Read at 4 AM from its reporting area, Houston-Galveston-Brazoria (TX), 15 miles off.

44Good
  • Fine particles (PM2.5)44Good-
  • Ozone27Good-
  • Coarse particles (PM10)17Good-

The days ahead

Highest moderate, today, led by ozone. Yesterday measured 74, moderate.

Smoke, the next 46 hours

Smoke near the ground peaks at index 55, moderate, Fri 5 PM.

FriSat

Precipitation

What has fallen at Ellington Airport

0.02 in in the last 24 hours, and none in the 2 days before, to Fri 3 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.02in
Last 3 days
0.02in

Visibility

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

Visibility stays 5 miles or more through Sun 1 AM, lowest 5 miles Fri 6 AM.

FriSat

Airfield

Code
EFD
ICAO
KEFD
IATA
EFD
Field elevation
32 ft
Serves
Houston
Kind
Medium airport
Scheduled service
No
Its own instrument
EFD
Wind now
From 170° at 12 mph, read 16 Oct, 03:54

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
17L / 35R unlit4,609 ft80 ftConcrete179° / 359°12 mph head, on 17L2 mph from the left
17R / 35L9,001 ft150 ftConcrete179° / 359°12 mph head, on 17R2 mph from the left
17L35R17R35L2,500 ftN170° 12 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 Houston/Ellington (EFD), Ellington Airport's own instrument, measure by measure, on the field's own clock.

Temperature

73 F at 3 AM; 88 F at its warmest, 12 PM Thursday, and 72 F at its coolest, 5 AM Thursday.

Now
73F
3 AM
Highest
88F
12 PM Thursday
Lowest
72F
5 AM Thursday
Temperature and Dew point at Houston/Ellington, temperature from 71.6 to 87.8, the latest 73.4; dew point from 68.0 to 71.6, the latest 69.8, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF6570758085906 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 70 F, the air 89% saturated; the humidity ran from 52% at 12 PM Thursday to 94% at 5 AM Thursday.

Dew point now
70F
3 AM
Humidity now
89%
Humidity, range
52 to 94%
Relative humidity at Houston/Ellington, relative humidity from 52 to 94, the latest 89, in per cent.RELATIVE HUMIDITY%4060801006 AM9 AM12 PM3 PM6 PM9 PMOct 163 AM

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

Wind

12 mph from the south at 3 AM; at its strongest 13 mph, 4 PM Thursday, and no gust reported.

Now
12mph
from the south
Strongest
13mph
4 PM Thursday
Highest gust
-
none reported
Wind at Houston/Ellington, wind from 0 to 13, the latest 12, in miles an hour.WINDmph0510156 AM9 AM12 PM3 PM6 PM9 PMOct 163 AM
Wind direction at Houston/Ellington, wind direction from 90 to 170, the latest 170, 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

30.04 inHg at 3 AM, rising 0.03 inHg over 3 hours; 0.07 inHg higher than a day before.

Now
30.04inHg
3 AM
3 hours
+0.03inHg
rising
24 hours
+0.07inHg
Pressure, altimeter at Houston/Ellington, pressure, altimeter from 29.94 to 30.04, the latest 30.04, in inches of mercury.PRESSURE, ALTIMETERinHg29.9329.9529.9830.0030.0230.056 AM9 AM12 PM3 PM6 PM9 PMOct 163 AM

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

Visibility

10 miles or more every hour.

Now
10+mi
Lowest
10+mi
Hours under a mile
0
Visibility at Houston/Ellington, visibility from 10.0 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 2,500 ft at 5 AM Thursday; a base was reported in 14 of the hours.

Lowest base now
-
Lowest in 24 hours
2,500ft
5 AM Thursday
Hours with a base reported
14
Lowest cloud base at Houston/Ellington, lowest cloud base from 2,500 to 7,500, the latest 2,500, in feet.LOWEST CLOUD BASEft2,0004,0006,0008,0006 AM9 AM12 PM3 PM6 PM9 PMOct 163 AMMVFRVFR

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

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

What is measuring near here

The 4 instruments nearest Ellington 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 now2 instruments

Houston/EllingtonEFD

At an airfield/0.0 mi away/33 ft/1 ft above here

temp, wind, gust, visibility, precip, pressure

measured daily2 instruments

Pasadena 3.7 SSETX-HRR-141

In a volunteer observer's own ground/1.3 mi away/23 ft/9 ft below here

precip, snowfall, snow depth

BaytownBATT2

At a cooperative observer's station/14.5 mi away/59 ft/27 ft above here

snowfall, snow depth, precip, high, low

-

Snow on the ground

Elsewhere in Texas

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

Near Ellington Airport

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

Near Ellington Airport