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Johnson County Airport, Wyoming

Small airport in Johnson County, Wyoming

Air quality

The air at Johnson County Airport

Index 42, good, led by fine particles. Read at 10 PM from its reporting area, Sheridan (WY), 31 miles off.

42Good
  • Fine particles (PM2.5)42Good-
  • Coarse particles (PM10)4Good-

The days ahead

Yesterday measured 31, good.

Smoke, the next 45 hours

No smoke near the ground through Sat 6 PM.

FriSat

Precipitation

What has fallen at Johnson County Airport

None in the last 24 hours; 0.02 in over the last 3 days, to Thu 9 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.02in

Visibility

How far you can see at Johnson County Airport, the next 45 hours

Visibility stays 10 miles or more through Sat 6 PM.

FriSat

Airfield

Code
BYG
ICAO
KBYG
IATA
BYG
Field elevation
4,968 ft
Serves
Buffalo
Kind
Small airport
Scheduled service
No
Its own instrument
BYG
Wind now
From 350° at 18 mph, read 15 Oct, 21:53

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
13 / 316,143 ft75 ftAsphalt138° / 318°15 mph head, on 3110 mph from the right
13312,000 ftN350° 18 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 Buffalo/Johnson County (BYG), Johnson County Airport's own instrument, measure by measure, on the field's own clock.

Temperature

35 F at 9 PM; 49 F at its warmest, 11 AM, and 35 F at its coolest, 9 PM.

Now
35F
9 PM
Highest
49F
11 AM
Lowest
35F
9 PM
Temperature and Dew point at Buffalo/Johnson County, temperature from 35.0 to 49.0, the latest 35.0; dew point from 19.0 to 37.0, the latest 19.0, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF1020304050Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PMFREEZINGTEMPERATUREDEW POINT

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

Humidity and dew point

A dew point of 19 F, the air 52% saturated; the humidity ran from 36% at 11 AM to 79% at 11 PM Wednesday.

Dew point now
19F
9 PM
Humidity now
52%
Humidity, range
36 to 79%
Relative humidity at Buffalo/Johnson County, relative humidity from 36 to 79, the latest 52, in per cent.RELATIVE HUMIDITY%20406080Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

Wind

19 mph from the north at 9 PM; at its strongest 35 mph, 1 PM, with a gust of 54 mph at 3 PM.

Now
19mph
from the north
Strongest
35mph
1 PM
Highest gust
54mph
3 PM
Wind and Gust at Buffalo/Johnson County, wind from 15 to 35, the latest 19; gust from 26 to 54, the latest 26, in miles an hour.WIND AND GUSTmph102030405060Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PMWINDGUST
Wind direction at Buffalo/Johnson County, wind direction from 330 to 350, the latest 350, 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

30.70 inHg at 9 PM, rising 0.06 inHg over 3 hours; 0.50 inHg higher than a day before.

Now
30.70inHg
9 PM
3 hours
+0.06inHg
rising
24 hours
+0.50inHg
Pressure, altimeter at Buffalo/Johnson County, pressure, altimeter from 30.20 to 30.70, the latest 30.70, in inches of mercury.PRESSURE, ALTIMETERinHg30.2030.4030.6030.80Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM

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 Buffalo/Johnson County, visibility from 10.0 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 2,400 ft at 6 AM; a base was reported in 8 of the hours.

Lowest base now
-
Lowest in 24 hours
2,400ft
6 AM
Hours with a base reported
8
Lowest cloud base at Buffalo/Johnson County, lowest cloud base from 2,400 to 5,500, the latest 5,500, in feet.LOWEST CLOUD BASEft2,0003,0004,0005,0006,000Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 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

Buffalo/Johnson County: 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 Johnson County 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

Buffalo/Johnson CountyBYG

At an airfield/0.1 mi away/4,967 ft/1 ft below here

temp, wind, gust, visibility, precip, pressure

I90/US87 - Kearny DivideWY53

Beside a road/9.8 mi away/4,772 ft/196 ft below here

temp, pavement temp, wind, visibility, precip

School House RAWSSPKW4

A remote fire weather station/13.8 mi away/8,054 ft/3,086 ft above here

temp, wind, gust, humidity, pressure

measured daily2 instruments

Buffalo 4.0 NWY-JN-48

In a volunteer observer's own ground/1.3 mi away/4,685 ft/283 ft below here

precip, snowfall, snow depth

Buffalo - COOPBUFW4

At a cooperative observer's station/2.5 mi away/4,747 ft/221 ft below here

snowfall, snow depth, precip, high, low

-

Snow on the ground

Elsewhere in Wyoming

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

Near Johnson County Airport

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

Near Johnson County Airport