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Tacoma Narrows Airport, Washington

Medium airport in Pierce County, Washington

Air quality

The air at Tacoma Narrows Airport

Index 56, moderate, led by fine particles. Read at 9 PM from its reporting area, Tacoma-Puyallup (WA), 8 miles off.

56Moderate
  • Fine particles (PM2.5)56Moderate6.3 mi
  • Ozone-1 ppb20.1 mi
  • Coarse particles (PM10)-23 mi
  • Nitrogen dioxide19Good20.1 ppb6.3 mi
  • Sulfur dioxide1Good1 ppb24.2 mi
  • Carbon monoxide-0.2 ppm24.2 mi

The days ahead

Highest 53, moderate, today, led by fine particles. Yesterday measured 48, good.

Smoke, the next 45 hours

Little smoke near the ground through Sun 5 PM: the index from smoke stays at 11 or under.

SatSun

Precipitation

What has fallen at Tacoma Narrows Airport

None in the last 3 days, to Fri 8 PM. 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 Tacoma Narrows Airport, the next 45 hours

Visibility stays 6 miles or more through Sun 5 PM, lowest 7 miles Sat 4 AM.

SatSun

Airfield

Code
TIW
ICAO
KTIW
IATA
TIW
Field elevation
294 ft
Serves
Tacoma
Kind
Medium airport
Scheduled service
Yes
Its own instrument
TIW
Wind now
From 220° at 6 mph, read 16 Oct, 20:53

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
17 / 355,002 ft100 ftAsphalt186° / 6°5 mph head, on 173 mph from the right
17352,000 ftN220° 6 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 Tacoma Narrows (TIW), Tacoma Narrows Airport's own instrument, measure by measure, on the field's own clock.

Temperature

64 F at 8 PM; 74 F at its warmest, 3 PM, and 47 F at its coolest, 5 AM.

Now
64F
8 PM
Highest
74F
3 PM
Lowest
47F
5 AM
Temperature and Dew point at Tacoma Narrows, temperature from 47.0 to 74.0, the latest 64.0; dew point from 39.0 to 52.5, the latest 47.0, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF304050607080Oct 163 AM6 AM9 AM12 PM3 PM6 PM9 PMFREEZINGTEMPERATUREDEW POINT

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

Humidity and dew point

A dew point of 47 F, the air 54% saturated; the humidity ran from 30% at 4 PM to 100% at 5 AM.

Dew point now
47F
8 PM
Humidity now
54%
Humidity, range
30 to 100%
Relative humidity at Tacoma Narrows, relative humidity from 30 to 100, the latest 54, in per cent.RELATIVE HUMIDITY%20406080100Oct 163 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

Wind

5 mph from the south at 9 PM; at its strongest 6 mph, 8 PM, and no gust reported.

Now
5mph
from the south
Strongest
6mph
8 PM
Highest gust
-
none reported
Wind at Tacoma Narrows, wind from 0 to 6, the latest 5, in miles an hour.WINDmph0246Oct 163 AM6 AM9 AM12 PM3 PM6 PM9 PM
Wind direction at Tacoma Narrows, wind direction from 20 to 340, the latest 180, in degrees.WIND DIRECTION°090180270360Oct 163 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

Pressure

30.04 inHg at 9 PM, steady over 3 hours; 0.21 inHg lower than a day before.

Now
30.04inHg
9 PM
3 hours
+0.01inHg
steady
24 hours
-0.21inHg
Pressure, altimeter at Tacoma Narrows, pressure, altimeter from 30.03 to 30.25, the latest 30.04, in inches of mercury.PRESSURE, ALTIMETERinHg30.0030.1030.2030.30Oct 163 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

Visibility

Down to 0.1 miles at 5 AM, under a mile for 8 hours; 10 miles or more now.

Now
10+mi
Lowest
0.1mi
5 AM
Hours under a mile
8
Visibility at Tacoma Narrows, visibility from 0.1 to 10.0, the latest 10.0, in miles.VISIBILITYmi02.557.510Oct 163 AM6 AM9 AM12 PM3 PM6 PM9 PMLIFRIFRMVFRVFR

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

Cloud base

The lowest cloud base came down to 100 ft at 4 AM; a base was reported in 9 of the hours.

Lowest base now
-
Lowest in 24 hours
100ft
4 AM
Hours with a base reported
9
Lowest cloud base at Tacoma Narrows, lowest cloud base from 100 to 200, the latest 100, in feet.LOWEST CLOUD BASEft100125150175200Oct 163 AM6 AM9 AM12 PM3 PM6 PM9 PMLIFR

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

Tacoma Narrows: 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 Tacoma Narrows Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.1 miles away.

measured now3 instruments

Tacoma NarrowsTIW

At an airfield/0.1 mi away/292 ft/2 ft below here

temp, wind, gust, visibility, precip, pressure

Tacoma Narrows BridgeTTNBR

Beside a road/1.4 mi away/7 ft/287 ft below here

temp, pavement temp, wind, visibility, precip

Spring Brook Ck Nr OrilliaSBKW1

At a river or reservoir gauge/20.0 mi away/23 ft/271 ft below here

temp, wind, gust, humidity, pressure

measured daily2 instruments

Gig Harbor 4.3 SWA-PR-71

In a volunteer observer's own ground/0.4 mi away/167 ft/127 ft below here

precip, snowfall, snow depth

Tacoma No. 1TACW1

At a cooperative observer's station/7.9 mi away/6 ft/288 ft below here

snowfall, snow depth, precip, high, low

-

Snow on the ground

Elsewhere in Washington

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

Near Tacoma Narrows Airport

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

Near Tacoma Narrows Airport