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Big Sandy Regional Airport, Kentucky

Small airport in Martin County, Kentucky

Air quality

The air at Big Sandy Regional Airport

Index 54, moderate, led by fine particles. Read at 11 PM from its reporting area, Pikeville (KY), 19 miles off.

54Moderate
  • Fine particles (PM2.5)54Moderate19.3 mi
  • Ozone6Good1 ppb19.3 mi

The days ahead

Yesterday measured 37, good.

Smoke, the next 45 hours

Little smoke near the ground through Sat 8 PM: the index from smoke stays at 11 or under.

FriSat

Precipitation

What has fallen at Big Sandy Regional Airport

0.97 in in the last 24 hours, 1.80 in over the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.97in
Last 3 days
1.80in

Visibility

How far you can see at Big Sandy Regional Airport, the next 45 hours

Visibility stays 5 miles or more through Sat 8 PM, lowest 5 miles Fri 1 PM.

FriSat

Airfield

Code
SJS
ICAO
KSJS
IATA
-
Field elevation
1,221 ft
Serves
Debord
Kind
Small airport
Scheduled service
No
Its own instrument
SJS
Wind now
From 190° at 5 mph, read 15 Oct, 23:55

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
03 / 215,051 ft100 ftAsphalt31° / 211°5 mph head, on 212 mph from the left
03212,000 ftN190° 5 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 Big Sandy (SJS), Big Sandy Regional Airport's own instrument, measure by measure, on the field's own clock.

Temperature

73 F at 12 AM; 77 F at its warmest, 5 PM Thursday, and 69 F at its coolest, 6 AM Thursday.

Now
73F
12 AM
Highest
77F
5 PM Thursday
Lowest
69F
6 AM Thursday
Temperature and Dew point at Big Sandy, temperature from 69.3 to 76.9, the latest 73.0; dew point from 69.0 to 72.3, the latest 71.2, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF6870727476783 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 71 F, the air 94% saturated; the humidity ran from 83% at 5 PM Thursday to 99% at 6 AM Thursday.

Dew point now
71F
12 AM
Humidity now
94%
Humidity, range
83 to 99%
Relative humidity at Big Sandy, relative humidity from 83 to 99, the latest 94, 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

Calm at 12 AM; at its strongest 5 mph, 12 PM Thursday, and no gust reported.

Now
0mph
calm
Strongest
5mph
12 PM Thursday
Highest gust
-
none reported
Wind at Big Sandy, wind from 0 to 5, the latest 0, in miles an hour.WINDmph02463 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16
Wind direction at Big Sandy, wind direction from 150 to 230, the latest 190, 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

30.01 inHg at 12 AM, steady over 3 hours; 0.08 inHg lower than a day before.

Now
30.01inHg
12 AM
3 hours
-0.02inHg
steady
24 hours
-0.08inHg
Pressure, altimeter at Big Sandy, pressure, altimeter from 30.01 to 30.13, the latest 30.01, in inches of mercury.PRESSURE, ALTIMETERinHg30.0030.0530.1030.153 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

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

Visibility

Down to 1 miles at 4 AM Thursday; 10 miles or more now.

Now
10+mi
Lowest
1mi
4 AM Thursday
Hours under a mile
0
Visibility at Big Sandy, visibility from 1.3 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 100 ft at 5 AM Thursday; a base was reported in 22 of the hours.

Lowest base now
7,500ft
Lowest in 24 hours
100ft
5 AM Thursday
Hours with a base reported
22
Lowest cloud base at Big Sandy, lowest cloud base from 100 to 9,500, the latest 7,500, in feet.LOWEST CLOUD BASEft02,5005,0007,50010,0003 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16MVFRVFR

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

Precipitation

0.42 in measured in the gauge, the most, 0.29 in, in the hour to 12 PM Thursday.

Last 24 hours
0.42in
Wettest hour
0.29in
12 PM Thursday
Hours with some
4
Precipitation at Big Sandy, precipitation from 0.00 to 0.29, the latest 0.00, in inches.PRECIPITATIONin0.000.100.200.303 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

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

Big Sandy: 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 Big Sandy Regional 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

Big SandySJS

At an airfield/0.0 mi away/1,194 ft/27 ft below here

temp, wind, gust, visibility, precip, pressure

KY-80 at mile 14.412_302_000.1

Beside a road/9.9 mi away/-/- ft from here

temp, pavement temp, wind, visibility, precip

measured daily2 instruments

Prestonsburg 3.6 NNEKY-FD-11

In a volunteer observer's own ground/6.2 mi away/943 ft/278 ft below here

precip, snowfall, snow depth

Drainage Basin-Big Sandy #1PNVK2

At a cooperative observer's station/9.2 mi away/620 ft/601 ft below here

snowfall, snow depth, precip, high, low

0in

Snow on the ground

Measured at Drainage Basin-Big Sandy #1 (PNVK2), 9.2 miles from here, read 15 Oct, 07:00. measured daily

Elsewhere in Kentucky

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

Near Big Sandy Regional Airport

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

Near Big Sandy Regional Airport