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Winchester Regional Airport, Virginia

Small airport in Frederick County, Virginia

Air quality

The air at Winchester Regional Airport

Index 30, good, led by fine particles. Read at 11 PM from its reporting area, Winchester (VA), 8 miles off.

30Good
  • Fine particles (PM2.5)30Good-
  • Ozone13Good9 ppb24.5 mi
  • Coarse particles (PM10)9Good-

The days ahead

Good each day through Sun Oct 18, led by fine particles. Yesterday measured 53, moderate.

Smoke, the next 46 hours

Little smoke near the ground through Sat 8 PM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at Winchester Regional Airport

0.11 in in the last 24 hours, and none in the 2 days before, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.11in
Last 3 days
0.11in

Visibility

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

Visibility stays 7 miles or more through Sat 8 PM, lowest 8 miles Fri 6 AM.

FriSat

Airfield

Code
OKV
ICAO
KOKV
IATA
WGO
Field elevation
726 ft
Serves
Winchester
Kind
Small airport
Scheduled service
No
Its own instrument
OKV
Wind now
From 150° at 7 mph, read 15 Oct, 23:15

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
14 / 325,498 ft100 ftAsphalt134° / 314°7 mph head, on 142 mph from the right
14321,000 ftN150° 7 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 Winchester Rgnl (OKV), Winchester Regional Airport's own instrument, measure by measure, on the field's own clock.

Temperature

57 F at 11 PM; 72 F at its warmest, 2 AM, and 55 F at its coolest, 1 PM.

Now
57F
11 PM
Highest
72F
2 AM
Lowest
55F
1 PM
Temperature and Dew point at Winchester Rgnl, temperature from 55.4 to 71.6, the latest 57.2; dew point from 50.0 to 68.0, the latest 55.4, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF50607080Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PMTEMPERATUREDEW POINT

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

Humidity and dew point

A dew point of 55 F, the air 94% saturated; the humidity ran from 68% at 10 AM to 100% at 8 PM.

Dew point now
55F
11 PM
Humidity now
94%
Humidity, range
68 to 100%
Relative humidity at Winchester Rgnl, relative humidity from 68 to 100, the latest 94, in per cent.RELATIVE HUMIDITY%60708090100Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

Wind

7 mph from the south southeast at 11 PM; at its strongest 7 mph, 11 PM, and no gust reported.

Now
7mph
from the south southeast
Strongest
7mph
11 PM
Highest gust
-
none reported
Wind at Winchester Rgnl, wind from 0 to 7, the latest 7, in miles an hour.WINDmph02468Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM
Wind direction at Winchester Rgnl, wind direction from 10 to 350, the latest 150, 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

30.07 inHg at 11 PM, falling 0.05 inHg over 3 hours; 0.02 inHg higher than a day before.

Now
30.07inHg
11 PM
3 hours
-0.05inHg
falling
24 hours
+0.02inHg
Pressure, altimeter at Winchester Rgnl, pressure, altimeter from 30.04 to 30.20, the latest 30.07, in inches of mercury.PRESSURE, ALTIMETERinHg30.0030.0530.1030.1530.20Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

Visibility

Down to 3 miles at 2 PM; 10 miles or more now.

Now
10+mi
Lowest
3mi
2 PM
Hours under a mile
0
Visibility at Winchester Rgnl, visibility from 3.0 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 400 ft at 8 PM; a base was reported in 24 of the hours.

Lowest base now
1,400ft
Lowest in 24 hours
400ft
8 PM
Hours with a base reported
24
Lowest cloud base at Winchester Rgnl, lowest cloud base from 400 to 3,000, the latest 1,400, in feet.LOWEST CLOUD BASEft01,0002,0003,000Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PMLIFRIFRMVFR

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

Precipitation

0.06 in measured in the gauge, the most, 0.02 in, in the hour to 2 PM.

Last 24 hours
0.06in
Wettest hour
0.02in
2 PM
Hours with some
4
Precipitation at Winchester Rgnl, precipitation from 0.00 to 0.02, the latest 0.00, in inches.PRECIPITATIONin0.000.030.050.070.10Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

Winchester Rgnl: 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 Winchester 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 now2 instruments

Winchester RgnlOKV

At an airfield/0.0 mi away/728 ft/2 ft above here

temp, wind, gust, visibility, precip, pressure

Fort Valley RAWSFVRV2

A remote fire weather station/25.5 mi away/1,115 ft/389 ft above here

temp, wind, gust, humidity, pressure

measured daily2 instruments

Winchester 2.4 ESEVA-FD-9

In a volunteer observer's own ground/1.3 mi away/719 ft/7 ft below here

precip, snowfall, snow depth

WinchesterWSTV2

At a cooperative observer's station/3.1 mi away/640 ft/86 ft below here

snowfall, snow depth, precip, high, low

0in

Snow on the ground

Measured at Winchester (WSTV2), 3.1 miles from here, read 6 Oct, 08:00. measured daily

Elsewhere in Virginia

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

Near Winchester Regional Airport

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

Near Winchester Regional Airport