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Watertown Regional Airport, South Dakota

Medium airport in Codington County, South Dakota

Air quality

The air at Watertown Regional Airport

Index 23, good, led by fine particles. Read at 5 AM from its reporting area, Watertown (SD), 1 mile off.

23Good
  • Fine particles (PM2.5)23Good-
  • Ozone19Good-
  • Coarse particles (PM10)6Good-

The days ahead

Yesterday measured 28, good.

Smoke, the next 45 hours

No smoke near the ground through Sun 1 AM.

FriSat

Precipitation

What has fallen at Watertown Regional Airport

0.12 in in the last 24 hours, 0.19 in over the last 3 days, to Fri 4 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.12in
Last 3 days
0.19in

Visibility

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

Visibility stays 10 miles or more through Sun 1 AM.

FriSat

Airfield

Code
ATY
ICAO
KATY
IATA
ATY
Field elevation
1,749 ft
Serves
Watertown
Kind
Medium airport
Scheduled service
Yes
Its own instrument
ATY
Wind now
From 340° at 31 mph, read 16 Oct, 04:53

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
12 / 306,898 ft100 ftAsphalt125° / 305°25 mph head, on 3018 mph from the right
17 / 356,893 ft100 ftAsphalt180° / 0°29 mph head, on 3511 mph from the left
123017352,500 ftN340° 31 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 Watertown (ATY), Watertown Regional Airport's own instrument, measure by measure, on the field's own clock.

Temperature

41 F at 4 AM; 52 F at its warmest, 2 PM Thursday, and 41 F at its coolest, 4 AM.

Now
41F
4 AM
Highest
52F
2 PM Thursday
Lowest
41F
4 AM
Temperature and Dew point at Watertown, temperature from 40.5 to 51.5, the latest 40.5; dew point from 34.5 to 46.0, the latest 34.5, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF3035404550556 AM9 AM12 PM3 PM6 PM9 PMOct 163 AMFREEZINGTEMPERATUREDEW POINT

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

Humidity and dew point

A dew point of 35 F, the air 79% saturated; the humidity ran from 58% at 3 PM Thursday to 93% at 7 AM Thursday.

Dew point now
35F
4 AM
Humidity now
79%
Humidity, range
58 to 93%
Relative humidity at Watertown, relative humidity from 58 to 93, the latest 79, in per cent.RELATIVE HUMIDITY%50607080901006 AM9 AM12 PM3 PM6 PM9 PMOct 163 AM

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

Wind

27 mph from the north at 5 AM; at its strongest 31 mph, 4 AM, with a gust of 51 mph at 7 PM Thursday.

Now
27mph
from the north
Strongest
31mph
4 AM
Highest gust
51mph
7 PM Thursday
Wind and Gust at Watertown, wind from 1 to 31, the latest 27; gust from 18 to 51, the latest 44, in miles an hour.WIND AND GUSTmph02040606 AM9 AM12 PM3 PM6 PM9 PMOct 163 AMWINDGUST
Wind direction at Watertown, wind direction from 50 to 350, the latest 350, in degrees.WIND DIRECTION°0901802703606 AM9 AM12 PM3 PM6 PM9 PMOct 163 AM

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

Pressure

30.43 inHg at 5 AM, rising 0.11 inHg over 3 hours; 0.32 inHg higher than a day before.

Now
30.43inHg
5 AM
3 hours
+0.11inHg
rising
24 hours
+0.32inHg
Pressure, altimeter at Watertown, pressure, altimeter from 30.07 to 30.43, the latest 30.43, in inches of mercury.PRESSURE, ALTIMETERinHg30.0030.1030.2030.3030.4030.506 AM9 AM12 PM3 PM6 PM9 PMOct 163 AM

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

Visibility

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

Now
10+mi
Lowest
4mi
10 AM Thursday
Hours under a mile
0
Visibility at Watertown, visibility from 4.0 to 10.0, the latest 10.0, in miles.VISIBILITYmi02.557.5106 AM9 AM12 PM3 PM6 PM9 PMOct 163 AMLIFRIFRMVFRVFR

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

Cloud base

The lowest cloud base came down to 600 ft at 6 AM Thursday; a base was reported in 23 of the hours.

Lowest base now
2,300ft
Lowest in 24 hours
600ft
6 AM Thursday
Hours with a base reported
23
Lowest cloud base at Watertown, lowest cloud base from 600 to 3,900, the latest 2,300, in feet.LOWEST CLOUD BASEft01,0002,0003,0004,0006 AM9 AM12 PM3 PM6 PM9 PMOct 163 AMLIFRIFRMVFRVFR

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

Precipitation

0.10 in measured in the gauge, the most, 0.06 in, in the hour to 10 AM Thursday.

Last 24 hours
0.10in
Wettest hour
0.06in
10 AM Thursday
Hours with some
7
Precipitation at Watertown, precipitation from 0.00 to 0.06, the latest 0.00, in inches.PRECIPITATIONin0.000.030.050.070.106 AM9 AM12 PM3 PM6 PM9 PMOct 163 AM

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

Watertown: 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 Watertown 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

WatertownATY

At an airfield/0.0 mi away/1,725 ft/24 ft below here

temp, wind, gust, visibility, precip, pressure

Sd RWIS ClarkSD516

Beside a road/20.8 mi away/1,818 ft/69 ft above here

temp, pavement temp, wind, visibility, precip

measured daily2 instruments

Watertown 0.8 SSESD-CD-43

In a volunteer observer's own ground/0.8 mi away/1,773 ft/24 ft above here

precip, snowfall, snow depth

WatertownWATS2

At a cooperative observer's station/2.0 mi away/1,768 ft/19 ft above here

snowfall, snow depth, precip, high, low

-

Snow on the ground

Elsewhere in South Dakota

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

Near Watertown Regional Airport

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

Near Watertown Regional Airport