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Eareckson Air Station, Alaska

Medium airport in Aleutians West Census Area, Alaska

Airfield

Code
SYA
ICAO
PASY
IATA
SYA
Field elevation
95 ft
Serves
Shemya
Kind
Medium airport
Scheduled service
No
Its own instrument
PASY
Wind now
From 140° at 30 mph, read 15 Oct, 20:11

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
10 / 2810,004 ft150 ftAsphalt107° / 287°25 mph head, on 1016 mph from the right
10282,500 ftN140° 30 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 Shemya AFB (PASY), Eareckson Air Station's own instrument, measure by measure, on the field's own clock.

Temperature

44 F at 4 PM; 46 F at its warmest, 1 PM, and 43 F at its coolest, 5 AM.

Now
44F
4 PM
Highest
46F
1 PM
Lowest
43F
5 AM
Temperature and Dew point at Shemya AFB, temperature from 42.6 to 46.0, the latest 43.5; dew point from 36.0 to 40.5, the latest 39.6, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF354045509 PMOct 153 AM6 AM9 AM12 PM3 PM6 PMTEMPERATUREDEW POINT

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

Humidity and dew point

A dew point of 40 F, the air 86% saturated; the humidity ran from 73% at 1 AM to 86% at 4 PM.

Dew point now
40F
4 PM
Humidity now
86%
Humidity, range
73 to 86%
Relative humidity at Shemya AFB, relative humidity from 73 to 86, the latest 86, in per cent.RELATIVE HUMIDITY%70758085909 PMOct 153 AM6 AM9 AM12 PM3 PM6 PM

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

Wind

30 mph from the southeast at 6 PM; at its strongest 31 mph, 3 PM, with a gust of 40 mph at 3 PM.

Now
30mph
from the southeast
Strongest
31mph
3 PM
Highest gust
40mph
3 PM
Wind and Gust at Shemya AFB, wind from 10 to 31, the latest 30; gust from 26 to 40, the latest 39, in miles an hour.WIND AND GUSTmph10203040509 PMOct 153 AM6 AM9 AM12 PM3 PM6 PMWINDGUST
Wind direction at Shemya AFB, wind direction from 130 to 180, the latest 140, in degrees.WIND DIRECTION°0901802703609 PMOct 153 AM6 AM9 AM12 PM3 PM6 PM

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

Pressure

29.73 inHg at 6 PM, falling 0.09 inHg over 3 hours; 0.49 inHg lower than a day before.

Now
29.73inHg
6 PM
3 hours
-0.09inHg
falling
24 hours
-0.49inHg
Pressure, altimeter at Shemya AFB, pressure, altimeter from 29.73 to 30.22, the latest 29.73, in inches of mercury.PRESSURE, ALTIMETERinHg29.6029.8030.0030.2030.409 PMOct 153 AM6 AM9 AM12 PM3 PM6 PM

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

Visibility

Down to 4 miles at 5 PM; 4 miles now.

Now
4mi
Lowest
4mi
5 PM
Hours under a mile
0
Visibility at Shemya AFB, visibility from 4.0 to 10.0, the latest 4.0, in miles.VISIBILITYmi02.557.5109 PMOct 153 AM6 AM9 AM12 PM3 PM6 PMLIFRIFRMVFRVFR

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

Cloud base

The lowest cloud base came down to 1,400 ft at 3 PM; a base was reported in 22 of the hours.

Lowest base now
-
Lowest in 24 hours
1,400ft
3 PM
Hours with a base reported
22
Lowest cloud base at Shemya AFB, lowest cloud base from 1,400 to 10,000, the latest 1,600, in feet.LOWEST CLOUD BASEft02,5005,0007,50010,0009 PMOct 153 AM6 AM9 AM12 PM3 PM6 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

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

What is measuring near here

The 1 instruments nearest Eareckson Air Station, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.2 miles away.

measured now1 instrument

Shemya AFBPASY

At an airfield/0.2 mi away/98 ft/3 ft above here

temp, wind, gust, visibility, precip, pressure

-

Snow on the ground

Elsewhere in Alaska

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

Near Eareckson Air Station

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Airports near Eareckson Air Station

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Near Eareckson Air Station