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Weydahl Field, North Dakota

Small airport in Dunn County, North Dakota

Air quality

The air at Weydahl Field

Index 24, good, led by ozone. Read at 2 AM from its reporting area, Theodore Roosevelt National Park (ND), 46 miles off.

24Good
  • Fine particles (PM2.5)1Good-
  • Ozone24Good-

The days ahead

Yesterday measured 6, good.

Smoke, the next 41 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Weydahl Field

None in the last 3 days, to Fri 1 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 Weydahl Field, the next 41 hours

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

FriSat

Airfield

Code
9Y1
ICAO
-
IATA
-
Field elevation
2,256 ft
Serves
Killdeer
Kind
Small airport
Scheduled service
No
Its own instrument
9Y1
Wind now
-

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
12 / 304,200 ft50 ftAsphalt132° / 312°--
12301,000 ftN
Runways from their surveyed ends, north up, lengths and positions to scale.

Measured here

What the airfield's own instrument measured, the last 24 hours

Every hour from Killdeer (9Y1), Weydahl Field's own instrument, measure by measure, on the field's own clock.

Temperature

39 F at 1 AM; 46 F at its warmest, 3 AM Thursday, and 39 F at its coolest, 1 AM.

Now
39F
1 AM
Highest
46F
3 AM Thursday
Lowest
39F
1 AM
Temperature and Dew point at Killdeer, temperature from 39.2 to 46.4, the latest 39.2; dew point from 30.8 to 41.0, the latest 33.8, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF30354045503 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16FREEZINGTEMPERATUREDEW POINT

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

Humidity and dew point

A dew point of 34 F, the air 81% saturated; the humidity ran from 68% at 6 AM Thursday to 100% at 7 PM Thursday.

Dew point now
34F
1 AM
Humidity now
81%
Humidity, range
68 to 100%
Relative humidity at Killdeer, relative humidity from 68 to 100, the latest 81, in per cent.RELATIVE HUMIDITY%607080901003 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

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

Wind

10 mph from the north at 1 AM; at its strongest 31 mph, 12 PM Thursday, with a gust of 46 mph at 2 PM Thursday.

Now
10mph
from the north
Strongest
31mph
12 PM Thursday
Highest gust
46mph
2 PM Thursday
Wind and Gust at Killdeer, wind from 10 to 31, the latest 10; gust from 17 to 46, the latest 17, in miles an hour.WIND AND GUSTmph10203040503 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16WINDGUST
Wind direction at Killdeer, wind direction from 300 to 350, the latest 350, 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

30.67 inHg at 1 AM, rising 0.08 inHg over 3 hours; 0.53 inHg higher than a day before.

Now
30.67inHg
1 AM
3 hours
+0.08inHg
rising
24 hours
+0.53inHg
Pressure, altimeter at Killdeer, pressure, altimeter from 30.14 to 30.67, the latest 30.67, in inches of mercury.PRESSURE, ALTIMETERinHg30.0030.2030.4030.6030.803 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

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

Visibility

Down to 3 miles at 5 PM Thursday; 10 miles or more now.

Now
10+mi
Lowest
3mi
5 PM Thursday
Hours under a mile
0
Visibility at Killdeer, visibility from 2.5 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 800 ft at 7 PM Thursday; a base was reported in 19 of the hours.

Lowest base now
-
Lowest in 24 hours
800ft
7 PM Thursday
Hours with a base reported
19
Lowest cloud base at Killdeer, lowest cloud base from 800 to 11,000, the latest 2,500, in feet.LOWEST CLOUD BASEft05,00010,00015,0003 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16MVFRVFR

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

Killdeer: 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 Weydahl Field, 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

Killdeer9Y1

At an airfield/0.0 mi away/2,254 ft/2 ft below here

temp, wind, gust, visibility, precip, pressure

Watford CityWCYN8

At a river or reservoir gauge/36.0 mi away/2,071 ft/185 ft below here

temp, wind, gust, humidity, pressure

measured daily2 instruments

KilldeerKLLN8

At a cooperative observer's station/1.6 mi away/2,323 ft/67 ft above here

snowfall, snow depth, precip, high, low

Killdeer 0.5 NWND-DN-17

In a volunteer observer's own ground/1.6 mi away/2,319 ft/63 ft above here

precip, snowfall, snow depth

0in

Snow on the ground

Measured at Killdeer (KLLN8), 1.6 miles from here, read 15 Oct, 08:10. measured daily

Elsewhere in North Dakota

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

Near Weydahl Field

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

Near Weydahl Field