Oakland Troy Airport, Michigan

Small airport in Oakland County, Michigan

48° 59°/55°

Clear· Feels like 42°·Moderate breeze 15 mph N

Alert. A Frost Advisory is in force for Oakland Troy Airport until 8 AM tomorrow. Read the alert in full, and see what it means in the Field Book.

Now. Oakland Troy Airport is 48° and clear at 9 PM. With the wind it feels like 42°. The dew point is 38°, so the air feels dry and comfortable. Moderate breeze from the north at 15 mph.

Today and tonight. Tonight falls to about 37° by 8 AM, under a mostly clear sky. No rain is expected for the rest of the day.

The week. The warmest day ahead is Thursday, near 69°, and the coolest tomorrow, near 54°. The days ahead look dry.

The sky now. The Moon is a waxing crescent, 33% lit, and sets at 10:36 PM. The next full Moon is Monday, Oct 26. Look for Saturn, bright in the east-southeast. A planet shines with a steady light where the stars around it twinkle. The Orionids meteor shower is active, peaking around Oct 21: at its peak, up to about 20 meteors an hour can be seen from a dark site. The sky is forecast to stay clear: a good night to look up. The day is 11 hours 3 minutes long, 2 minutes shorter than yesterday.

0UV Low

25Air quality

66%Humidity

2%Cloud

Now

9:00 PM

48feels42

15mph

Today

Oct 16

5955

27%

16mph

Sat

Oct 17

5437

14mph

Sun

Oct 18

6139

Mon

Oct 19

6639

Tue

Oct 20

6844

Wed

Oct 21

6746

Thu

Oct 22

6947

48°

59°55°

54°37°

61°39°

66°39°

68°44°

67°46°

69°47°

As of 9:00 PM in Oakland Troy Airport, Michigan.

Air quality

The air at Oakland Troy Airport

Index 25, good, led by fine particles. Read at 8 PM from its reporting area, Southeast (MI), 10 miles off.

25Good

Fine particles (PM2.5)25Good5.3 mi
Ozone20Good21 ppb5.3 mi
Coarse particles (PM10)6Good16.1 mi
Nitrogen dioxide3Good3.1 ppb11.5 mi
Sulfur dioxide0Good0.3 ppb16.2 mi
Carbon monoxide-0 ppm11.5 mi

The days ahead

Good each day through Mon Oct 19, led by ozone. Yesterday measured 26, good.

GoodModerate

26YesterdayOct 15
GoodTodayOct 16
GoodSatOct 17
GoodSunOct 18
GoodMonOct 19

Smoke, the next 42 hours

No smoke near the ground through Sun 2 PM.

Precipitation

What has fallen at Oakland Troy Airport

0.05 in in the last 24 hours, 0.06 in over the last 3 days, to Fri 8 PM. Measured by radar and rain gauges, as water.

Last 24 hours: 0.05in
Last 3 days: 0.06in

3 days agoLast 24 hours 83%

Visibility

How far you can see at Oakland Troy Airport, the next 42 hours

Visibility stays 8 miles or more through Sun 2 PM, lowest 9 miles Sun 7 AM.

Airfield

Code: VLL
ICAO: KVLL
IATA: -
Field elevation: 727 ft
Serves: Troy
Kind: Small airport
Scheduled service: No
Its own instrument: VLL
Wind now: From 360° at 16 mph, read 16 Oct, 20:35

Runways

Runway	Length	Width	Surface	Heading, true	Wind along it now	Crosswind now
09 / 27	3,550 ft	60 ft	Asphalt	89° / 269°	0 mph head, on 09	16 mph from the left

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 Troy (VLL), Oakland Troy Airport's own instrument, measure by measure, on the field's own clock.

Temperature

48 F at 8 PM; 66 F at its warmest, 3 AM, and 48 F at its coolest, 8 PM.

Now: 48F; 8 PM
Highest: 66F; 3 AM
Lowest: 48F; 8 PM

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

Humidity and dew point

A dew point of 38 F, the air 68% saturated; the humidity ran from 66% at 6 PM to 98% at 12 AM.

Dew point now: 38F; 8 PM
Humidity now: 68%
Humidity, range: 66 to 98%

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

Wind

14 mph from the north at 8 PM; at its strongest 17 mph, 9 AM, with a gust of 29 mph at 5 AM.

Now: 14mph; from the north
Strongest: 17mph; 9 AM
Highest gust: 29mph; 5 AM

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

Pressure

30.13 inHg at 8 PM, rising 0.13 inHg over 3 hours; 0.35 inHg higher than a day before.

Now: 30.13inHg; 8 PM
3 hours: +0.13inHg; rising
24 hours: +0.35inHg

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

Visibility

Down to 3 miles at 2 PM; 10 miles or more now.

Now: 10+mi
Lowest: 3mi; 2 PM
Hours under a mile: 0

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

Cloud base

The lowest cloud base came down to 400 ft at 12 AM; a base was reported in 23 of the hours.

Lowest base now: -
Lowest in 24 hours: 400ft; 12 AM
Hours with a base reported: 23

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

Precipitation

0.04 in measured in the gauge, the most, 0.02 in, in the hour to 11 PM Thursday.

Last 24 hours: 0.04in
Wettest hour: 0.02in; 11 PM Thursday
Hours with some: 3

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

Troy: 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 Oakland Troy 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

TroyVLL

At an airfield/0.0 mi away/728 ft/1 ft above here

temp, wind, gust, visibility, precip, pressure

I75N at CrooksMC141

Beside a road/4.3 mi away/817 ft/90 ft above here

temp, pavement temp, wind, visibility, precip

St Clair ShoresCLSM4

At a river or reservoir gauge/16.1 mi away/581 ft/146 ft below here

temp, wind, gust, humidity, pressure

measured daily2 instruments

Clawson 0.5 SMI-OK-141