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Fort Madison Municipal Airport, Iowa

Small airport in Lee County, Iowa

Air quality

The air at Fort Madison Municipal Airport

Index 16, good, led by ozone. Read at 11 PM from its reporting area, Lake Sugema (IA), 36 miles off.

16Good
  • Fine particles (PM2.5)7Good-
  • Ozone16Good-

The days ahead

Good each day through Today, led by fine particles. Yesterday measured 28, good.

Smoke, the next 44 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Fort Madison Municipal Airport

0.36 in in the last 24 hours, 0.87 in over the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.36in
Last 3 days
0.87in

Visibility

How far you can see at Fort Madison Municipal Airport, the next 44 hours

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

FriSat

Airfield

Code
FSW
ICAO
KFSW
IATA
FMS
Field elevation
724 ft
Serves
Fort Madison
Kind
Small airport
Scheduled service
No
Its own instrument
FSW
Wind now
From 280° at 14 mph, read 15 Oct, 23:55

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
17 / 354,000 ft75 ftConcrete167° / 347°5 mph head, on 3513 mph from the left
17351,000 ftN280° 14 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 Fort Madison (FSW), Fort Madison Municipal Airport's own instrument, measure by measure, on the field's own clock.

Temperature

54 F at 10 PM Thursday; 66 F at its warmest, 4 PM Thursday, and 54 F at its coolest, 9 PM Thursday.

Now
54F
10 PM Thursday
Highest
66F
4 PM Thursday
Lowest
54F
9 PM Thursday
Temperature and Dew point at Fort Madison, temperature from 53.6 to 66.2, the latest 53.6; dew point from 48.2 to 66.2, the latest 48.2, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF4550556065703 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 48 F, the air 82% saturated; the humidity ran from 82% at 10 PM Thursday to 100% at 1 PM Thursday.

Dew point now
48F
10 PM Thursday
Humidity now
82%
Humidity, range
82 to 100%
Relative humidity at Fort Madison, relative humidity from 82 to 100, the latest 82, in per cent.RELATIVE HUMIDITY%808590951003 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

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

Wind

17 mph from the west at 10 PM Thursday; at its strongest 17 mph, 6 PM Thursday, with a gust of 31 mph at 6 PM Thursday.

Now
17mph
from the west
Strongest
17mph
6 PM Thursday
Highest gust
31mph
6 PM Thursday
Wind and Gust at Fort Madison, wind from 3 to 17, the latest 17; gust from 28 to 31, the latest 28, in miles an hour.WIND AND GUSTmph0102030403 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16WINDGUST
Wind direction at Fort Madison, wind direction from 60 to 290, 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

30.06 inHg at 10 PM Thursday, rising 0.11 inHg over 3 hours; 0.03 inHg lower than a day before.

Now
30.06inHg
10 PM Thursday
3 hours
+0.11inHg
rising
24 hours
-0.03inHg
Pressure, altimeter at Fort Madison, pressure, altimeter from 29.86 to 30.09, the latest 30.06, in inches of mercury.PRESSURE, ALTIMETERinHg29.8029.9030.0030.103 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

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

Visibility

Down to 1 miles at 11 AM Thursday; 10 miles or more now.

Now
10+mi
Lowest
1mi
11 AM Thursday
Hours under a mile
0
Visibility at Fort Madison, visibility from 1.3 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 300 ft at 12 PM Thursday; a base was reported in 22 of the hours.

Lowest base now
-
Lowest in 24 hours
300ft
12 PM Thursday
Hours with a base reported
22
Lowest cloud base at Fort Madison, lowest cloud base from 300 to 2,500, the latest 1,900, in feet.LOWEST CLOUD BASEft01,0002,0003,0003 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16LIFRIFRMVFR

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

Precipitation

0.25 in measured in the gauge, the most, 0.17 in, in the hour to 12 PM Thursday.

Last 24 hours
0.25in
Wettest hour
0.17in
12 PM Thursday
Hours with some
3
Precipitation at Fort Madison, precipitation from 0.00 to 0.17, the latest 0.00, in inches.PRECIPITATIONin0.000.050.100.150.203 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

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

Fort Madison: 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 Fort Madison Municipal Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.2 miles away.

measured now3 instruments

Fort MadisonFSW

At an airfield/0.2 mi away/722 ft/2 ft below here

temp, wind, gust, visibility, precip, pressure

Burlington (US 34)RBUI4

Beside a road/16.0 mi away/715 ft/9 ft below here

temp, pavement temp, wind, visibility, precip

measured daily2 instruments

Fort Madison 3.8 ENEIA-LE-1

In a volunteer observer's own ground/2.3 mi away/712 ft/12 ft below here

precip, snowfall, snow depth

Fort MadisonFTMI4

At a cooperative observer's station/2.9 mi away/515 ft/209 ft below here

snowfall, snow depth, precip, high, low

0in

Snow on the ground

Measured at Fort Madison (FTMI4), 2.9 miles from here, read 14 Oct, 23:59. measured daily

Elsewhere in Iowa

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

Near Fort Madison Municipal Airport

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

Near Fort Madison Municipal Airport