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Piedmont Triad International Airport, North Carolina

Large airport in Guilford County, North Carolina

Air quality

The air at Piedmont Triad International Airport

Index 70, moderate, led by fine particles. Read at 12 PM from its reporting area, Forsyth County-Winston-Salem-Greensboro-High Point (NC), 12 miles off.

70Moderate
  • Fine particles (PM2.5)70Moderate7.7 mi
  • Ozone39Good49 ppb7.7 mi
  • Coarse particles (PM10)26Good7.7 mi
  • Nitrogen dioxide6Good6.1 ppb15.9 mi
  • Sulfur dioxide0Good0.3 ppb15.9 mi

The days ahead

Highest 59, moderate, today, led by ozone. Yesterday measured 57, moderate.

Smoke, the next 45 hours

Little smoke near the ground through Sun 8 AM: the index from smoke stays at 22 or under.

FriSatSun

Precipitation

What has fallen at Piedmont Triad International Airport

None in the last 3 days, to Fri 11 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

How far you can see at Piedmont Triad International Airport, the next 45 hours

Visibility stays 4 miles or more through Sun 8 AM, lowest 4 miles Sat 7 AM.

FriSatSun

Airfield

Code
GSO
ICAO
KGSO
IATA
GSO
Field elevation
925 ft
Serves
Greensboro
Kind
Large airport
Scheduled service
Yes
Its own instrument
GSO
Wind now
From 230° at 13 mph, read 16 Oct, 11:54

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
05L / 23R9,000 ft150 ftAsphalt46° / 226°13 mph head, on 23R1 mph from the right
05R / 23L10,001 ft150 ftAsphalt and concrete46° / 226°13 mph head, on 23L1 mph from the right
14 / 326,380 ft150 ftAsphalt135° / 315°1 mph head, on 3213 mph from the left
05L23R05R23L14325,000 ftN230° 13 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 Greensboro/Piedmont_(ASOS) (GSO), Piedmont Triad International Airport's own instrument, measure by measure, on the field's own clock.

Temperature

79 F at 11 AM; 87 F at its warmest, 3 PM Thursday, and 64 F at its coolest, 7 AM.

Now
79F
11 AM
Highest
87F
3 PM Thursday
Lowest
64F
7 AM
Temperature and Dew point at Greensboro/Piedmont_(ASOS), temperature from 63.5 to 87.0, the latest 79.0; dew point from 63.5 to 70.0, the latest 67.0, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF607080903 PM6 PM9 PMOct 163 AM6 AM9 AM12 PMTEMPERATUREDEW POINT

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

Humidity and dew point

A dew point of 67 F, the air 67% saturated; the humidity ran from 55% at 3 PM Thursday to 100% at 1 AM.

Dew point now
67F
11 AM
Humidity now
67%
Humidity, range
55 to 100%
Relative humidity at Greensboro/Piedmont_(ASOS), relative humidity from 55 to 100, the latest 67, in per cent.RELATIVE HUMIDITY%4060801003 PM6 PM9 PMOct 163 AM6 AM9 AM12 PM

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

Wind

8 mph from the southwest at 12 PM; at its strongest 8 mph, 12 PM, with a gust of 18 mph at 2 PM Thursday.

Now
8mph
from the southwest
Strongest
8mph
12 PM
Highest gust
18mph
2 PM Thursday
Wind at Greensboro/Piedmont_(ASOS), wind from 0 to 8, the latest 8, in miles an hour.WINDmph02.557.5103 PM6 PM9 PMOct 163 AM6 AM9 AM12 PM
Wind direction at Greensboro/Piedmont_(ASOS), wind direction from 20 to 240, the latest 230, in degrees.WIND DIRECTION°0901802703603 PM6 PM9 PMOct 163 AM6 AM9 AM12 PM

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

Pressure

29.95 inHg at 12 PM, falling 0.05 inHg over 3 hours; 0.15 inHg lower than a day before.

Now
29.95inHg
12 PM
3 hours
-0.05inHg
falling
24 hours
-0.15inHg
Pressure, altimeter at Greensboro/Piedmont_(ASOS), pressure, altimeter from 29.95 to 30.10, the latest 29.95, in inches of mercury.PRESSURE, ALTIMETERinHg29.9530.0030.0530.103 PM6 PM9 PMOct 163 AM6 AM9 AM12 PM

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

Visibility

Down to 0.2 miles at 5 AM, under a mile for 4 hours; 10 miles or more now.

Now
10+mi
Lowest
0.2mi
5 AM
Hours under a mile
4
Visibility at Greensboro/Piedmont_(ASOS), visibility from 0.2 to 10.0, the latest 10.0, in miles.VISIBILITYmi02.557.5103 PM6 PM9 PMOct 163 AM6 AM9 AM12 PMLIFRIFRMVFRVFR

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

Cloud base

The lowest cloud base came down to 100 ft at 4 AM; a base was reported in 21 of the hours.

Lowest base now
-
Lowest in 24 hours
100ft
4 AM
Hours with a base reported
21
Lowest cloud base at Greensboro/Piedmont_(ASOS), lowest cloud base from 100 to 25,000, the latest 25,000, in feet.LOWEST CLOUD BASEft010,00020,00030,0003 PM6 PM9 PMOct 163 AM6 AM9 AM12 PMVFR

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

Greensboro/Piedmont_(ASOS): 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 Piedmont Triad International Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.4 miles away.

measured now2 instruments

LexingtonLXFN7

At a river or reservoir gauge/29.8 mi away/748 ft/177 ft below here

temp, wind, gust, humidity, pressure

measured daily2 instruments

Greensboro 4.5 WNC-GL-20

In a volunteer observer's own ground/2.0 mi away/905 ft/20 ft below here

precip, snowfall, snow depth

Greensboro WtpGSON7

At a water treatment plant/7.5 mi away/748 ft/177 ft below here

snowfall, snow depth, precip, high, low

-

Snow on the ground

Elsewhere in North Carolina

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

Near Piedmont Triad International Airport

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

Near Piedmont Triad International Airport