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Kirsch Municipal Airport, Michigan

Small airport in St. Joseph County, Michigan

Air quality

The air at Kirsch Municipal Airport

Index 24, good, led by fine particles. Read at 2 AM from its reporting area, Kalamazoo (MI), 22 miles off.

24Good
  • Fine particles (PM2.5)24Good-
  • Ozone13Good-

The days ahead

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

Smoke, the next 43 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at Kirsch Municipal Airport

0.03 in in the last 24 hours, 1.30 in over the last 3 days, to Fri 1 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.03in
Last 3 days
1.30in

Visibility

How far you can see at Kirsch Municipal Airport, the next 43 hours

Visibility stays 4 miles or more through Sat 8 PM, lowest 5 miles Fri 2 AM.

FriSat

Airfield

Code
IRS
ICAO
KIRS
IATA
IRS
Field elevation
924 ft
Serves
Sturgis
Kind
Small airport
Scheduled service
No
Its own instrument
IRS
Wind now
From 280° at 8 mph, read 16 Oct, 02:16

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
01 / 195,201 ft100 ftAsphalt360° / 180°1 mph head, on 018 mph from the left
06 / 243,601 ft75 ftAsphalt58° / 238°6 mph head, on 245 mph from the right
011906242,000 ftN280° 8 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 Sturgis/Kirsch (IRS), Kirsch Municipal Airport's own instrument, measure by measure, on the field's own clock.

Temperature

68 F at 2 AM; 69 F at its warmest, 12 AM, and 54 F at its coolest, 7 AM Thursday.

Now
68F
2 AM
Highest
69F
12 AM
Lowest
54F
7 AM Thursday
Temperature and Dew point at Sturgis/Kirsch, temperature from 53.6 to 69.2, the latest 68.0; dew point from 48.8 to 67.4, the latest 64.4, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF405060703 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16TEMPERATUREDEW 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 88% saturated; the humidity ran from 71% at 11 AM Thursday to 98% at 10 PM Thursday.

Dew point now
64F
2 AM
Humidity now
88%
Humidity, range
71 to 98%
Relative humidity at Sturgis/Kirsch, relative humidity from 71 to 98, the latest 88, in per cent.RELATIVE HUMIDITY%7080901003 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

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

Wind

8 mph from the west at 2 AM; at its strongest 15 mph, 1 AM, with a gust of 25 mph at 11 PM Thursday.

Now
8mph
from the west
Strongest
15mph
1 AM
Highest gust
25mph
11 PM Thursday
Wind and Gust at Sturgis/Kirsch, wind from 5 to 15, the latest 8; gust from 16 to 25, the latest 23, in miles an hour.WIND AND GUSTmph510152025303 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16WINDGUST
Wind direction at Sturgis/Kirsch, wind direction from 70 to 280, the latest 280, 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

29.73 inHg at 2 AM, steady over 3 hours; 0.47 inHg lower than a day before.

Now
29.73inHg
2 AM
3 hours
-0.01inHg
steady
24 hours
-0.47inHg
Pressure, altimeter at Sturgis/Kirsch, pressure, altimeter from 29.73 to 30.20, the latest 29.73, in inches of mercury.PRESSURE, ALTIMETERinHg29.6029.8030.0030.203 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

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

Visibility

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

Now
10+mi
Lowest
5mi
10 PM Thursday
Hours under a mile
0
Visibility at Sturgis/Kirsch, visibility from 5.0 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 500 ft at 10 PM Thursday; a base was reported in 24 of the hours.

Lowest base now
1,300ft
Lowest in 24 hours
500ft
10 PM Thursday
Hours with a base reported
24
Lowest cloud base at Sturgis/Kirsch, lowest cloud base from 500 to 8,000, the latest 1,300, in feet.LOWEST CLOUD BASEft02,0004,0006,0008,0003 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16MVFRVFR

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

Precipitation

0.02 in measured in the gauge, the most, 0.02 in, in the hour to 8 PM Thursday.

Last 24 hours
0.02in
Wettest hour
0.02in
8 PM Thursday
Hours with some
1
Precipitation at Sturgis/Kirsch, precipitation from 0.00 to 0.02, the latest 0.00, in inches.PRECIPITATIONin0.000.030.050.070.103 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

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

Sturgis/Kirsch: 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 Kirsch Municipal 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 now2 instruments

Sturgis/KirschIRS

At an airfield/0.0 mi away/925 ft/1 ft above here

temp, wind, gust, visibility, precip, pressure

MI-05 ConstantineMC075

Beside a road/11.5 mi away/810 ft/114 ft below here

temp, pavement temp, wind, visibility, precip

measured daily2 instruments

Colon 0.8 WMI-SJ-8

In a volunteer observer's own ground/11.2 mi away/864 ft/60 ft below here

precip, snowfall, snow depth

Three RiversTRVM4

At a cooperative observer's station/13.0 mi away/801 ft/123 ft below here

snowfall, snow depth, precip, high, low

-

Snow on the ground

Elsewhere in Michigan

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

Near Kirsch Municipal Airport

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

Near Kirsch Municipal Airport