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Willow Run Airport, Michigan

Medium airport in Wayne County, Michigan

Air quality

The air at Willow Run Airport

Index 54, moderate, led by fine particles. Read at 4 AM from its reporting area, Southeast (MI), 20 miles off.

54Moderate
  • Fine particles (PM2.5)54Moderate3.6 mi
  • Ozone16Good12 ppb3.6 mi
  • Coarse particles (PM10)16Good16.4 mi
  • Nitrogen dioxide7Good7.4 ppb16.8 mi
  • Sulfur dioxide0Good0 ppb16.4 mi
  • Carbon monoxide-0.2 ppm16.4 mi

The days ahead

Good each day through Today, led by ozone. Yesterday measured 26, good.

Smoke, the next 40 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at Willow Run Airport

0.10 in in the last 24 hours, 0.14 in over the last 3 days, to Fri 4 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.10in
Last 3 days
0.14in

Visibility

How far you can see at Willow Run Airport, the next 40 hours

Visibility stays 5 miles or more through Sat 8 PM, lowest 5 miles Fri 7 PM.

FriSat

Airfield

Code
YIP
ICAO
KYIP
IATA
YIP
Field elevation
716 ft
Serves
Detroit
Kind
Medium airport
Scheduled service
No
Its own instrument
YIP
Wind now
From 260° at 15 mph, read 16 Oct, 04:53

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
05 / 237,543 ft150 ftConcrete47° / 227°13 mph head, on 238 mph from the right
09 / 275,001 ft100 ftAsphalt89° / 269°15 mph head, on 272 mph from the left
052309272,500 ftN260° 15 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 Detroit/Willow (YIP), Willow Run Airport's own instrument, measure by measure, on the field's own clock.

Temperature

67 F at 4 AM; 67 F at its warmest, 3 AM, and 52 F at its coolest, 8 AM Thursday.

Now
67F
4 AM
Highest
67F
3 AM
Lowest
52F
8 AM Thursday
Temperature and Dew point at Detroit/Willow, temperature from 51.6 to 66.7, the latest 66.7; dew point from 45.0 to 65.3, the latest 64.3, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF405060706 AM9 AM12 PM3 PM6 PM9 PMOct 163 AMTEMPERATUREDEW POINT

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

Humidity and dew point

A dew point of 64 F, the air 92% saturated; the humidity ran from 69% at 12 PM Thursday to 97% at 2 AM.

Dew point now
64F
4 AM
Humidity now
92%
Humidity, range
69 to 97%
Relative humidity at Detroit/Willow, relative humidity from 69 to 97, the latest 92, in per cent.RELATIVE HUMIDITY%607080901006 AM9 AM12 PM3 PM6 PM9 PMOct 163 AM

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

Wind

15 mph from the west at 4 AM; at its strongest 15 mph, 4 AM, with a gust of 32 mph at 4 AM.

Now
15mph
from the west
Strongest
15mph
4 AM
Highest gust
32mph
4 AM
Wind and Gust at Detroit/Willow, wind from 5 to 15, the latest 15; gust from 22 to 32, the latest 32, in miles an hour.WIND AND GUSTmph0102030406 AM9 AM12 PM3 PM6 PM9 PMOct 163 AMWINDGUST
Wind direction at Detroit/Willow, wind direction from 50 to 260, the latest 260, 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

29.69 inHg at 4 AM, steady over 3 hours; 0.54 inHg lower than a day before.

Now
29.69inHg
4 AM
3 hours
+0.00inHg
steady
24 hours
-0.54inHg
Pressure, altimeter at Detroit/Willow, pressure, altimeter from 29.67 to 30.23, the latest 29.69, in inches of mercury.PRESSURE, ALTIMETERinHg29.6029.8030.0030.2030.406 AM9 AM12 PM3 PM6 PM9 PMOct 163 AM

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

Visibility

Down to 3 miles at 10 PM Thursday; 3 miles now.

Now
3mi
Lowest
3mi
10 PM Thursday
Hours under a mile
0
Visibility at Detroit/Willow, visibility from 2.5 to 10.0, the latest 3.0, 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 1 AM; a base was reported in 23 of the hours.

Lowest base now
-
Lowest in 24 hours
600ft
1 AM
Hours with a base reported
23
Lowest cloud base at Detroit/Willow, lowest cloud base from 600 to 2,600, the latest 1,300, in feet.LOWEST CLOUD BASEft5001,0001,5002,0002,5003,0006 AM9 AM12 PM3 PM6 PM9 PMOct 163 AMIFRMVFR

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

Precipitation

0.22 in measured in the gauge, the most, 0.13 in, in the hour to 10 PM Thursday.

Last 24 hours
0.22in
Wettest hour
0.13in
10 PM Thursday
Hours with some
6
Precipitation at Detroit/Willow, precipitation from 0.00 to 0.13, the latest 0.08, in inches.PRECIPITATIONin0.000.050.100.156 AM9 AM12 PM3 PM6 PM9 PMOct 163 AM

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

Detroit/Willow: 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 Willow Run 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

Detroit/WillowYIP

At an airfield/0.0 mi away/705 ft/11 ft below here

temp, wind, gust, visibility, precip, pressure

M-11MC135

Beside a road/1.4 mi away/699 ft/17 ft below here

temp, pavement temp, wind, visibility, precip

Adrian [CCOOP]ARNM4

At a river or reservoir gauge/33.4 mi away/738 ft/22 ft above here

temp, wind, gust, humidity, pressure

measured daily2 instruments

Ypsilanti 2.5 ESEMI-WS-79

In a volunteer observer's own ground/2.5 mi away/729 ft/13 ft above here

precip, snowfall, snow depth

Ann Arbor SEAASM4

At a cooperative observer's station/8.3 mi away/840 ft/124 ft above here

snowfall, snow depth, precip, high, low

0in

Snow on the ground

Measured at Ann Arbor SE (AASM4), 8.3 miles from here, read 15 Oct, 07:30. measured daily

Elsewhere in Michigan

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

Near Willow Run Airport

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

Near Willow Run Airport