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North Island Naval Air Station-Halsey Field, California

Medium airport in San Diego County, California

Air quality

The air at North Island Naval Air Station-Halsey Field

Index 52, moderate, led by fine particles. Read at 2 AM from its reporting area, San Diego Coast (CA), 9 miles off.

52Moderate
  • Fine particles (PM2.5)52Moderate10.5 mi
  • Ozone31Good21 ppb10.5 mi
  • Coarse particles (PM10)25Good10.5 mi

The days ahead

Good each day through Today, led by ozone. Yesterday measured 48, good.

Smoke, the next 46 hours

Little smoke near the ground through Sat 11 PM: the index from smoke stays at 22 or under.

FriSat

Precipitation

What has fallen at North Island Naval Air Station-Halsey Field

None in the last 3 days, to Fri 1 AM. 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 North Island Naval Air Station-Halsey Field, the next 46 hours

Visibility stays 10 miles or more through Sat 11 PM.

FriSat

Airfield

Code
NZY
ICAO
KNZY
IATA
NZY
Field elevation
26 ft
Serves
San Diego
Kind
Medium airport
Scheduled service
No
Its own instrument
NZY
Wind now
Calm, read 16 Oct, 01:52

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
11 / 297,501 ft200 ftAsphalt and concrete123° / 303°CalmCalm
18 / 368,001 ft200 ftAsphalt and concrete196° / 16°CalmCalm
112918362,500 ftN
Runways from their surveyed ends, north up, lengths and positions to scale.

Measured here

What the airfield's own instrument measured, the last 24 hours

Every hour from North Island NAS (NZY), North Island Naval Air Station-Halsey Field's own instrument, measure by measure, on the field's own clock.

Temperature

66 F at 1 AM; 85 F at its warmest, 12 PM Thursday, and 58 F at its coolest, 6 AM Thursday.

Now
66F
1 AM
Highest
85F
12 PM Thursday
Lowest
58F
6 AM Thursday
Temperature and Dew point at North Island NAS, temperature from 58.0 to 85.0, the latest 66.0; dew point from 45.0 to 67.0, the latest 62.0, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF4050607080903 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 62 F, the air 87% saturated; the humidity ran from 25% at 12 PM Thursday to 87% at 7 PM Thursday.

Dew point now
62F
1 AM
Humidity now
87%
Humidity, range
25 to 87%
Relative humidity at North Island NAS, relative humidity from 25 to 87, the latest 87, in per cent.RELATIVE HUMIDITY%204060801003 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

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

Wind

Calm at 1 AM; at its strongest 16 mph, 3 PM Thursday, and no gust reported.

Now
0mph
calm
Strongest
16mph
3 PM Thursday
Highest gust
-
none reported
Wind at North Island NAS, wind from 0 to 16, the latest 0, in miles an hour.WINDmph051015203 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16
Wind direction at North Island NAS, wind direction from 70 to 340, the latest 300, 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

29.91 inHg at 1 AM, steady over 3 hours; 0.07 inHg lower than a day before.

Now
29.91inHg
1 AM
3 hours
+0.00inHg
steady
24 hours
-0.07inHg
Pressure, altimeter at North Island NAS, pressure, altimeter from 29.87 to 29.99, the latest 29.91, in inches of mercury.PRESSURE, ALTIMETERinHg29.8529.9029.9530.003 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

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

Visibility

Down to 9 miles at 7 PM Thursday; 9 miles now.

Now
9mi
Lowest
9mi
7 PM Thursday
Hours under a mile
0
Visibility at North Island NAS, visibility from 9.0 to 10.0, the latest 9.0, 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 1,500 ft at 10 AM Thursday; a base was reported in 10 of the hours.

Lowest base now
-
Lowest in 24 hours
1,500ft
10 AM Thursday
Hours with a base reported
10
Lowest cloud base at North Island NAS, lowest cloud base from 1,500 to 7,000, the latest 7,000, 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

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

North Island NAS: 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 North Island Naval Air Station-Halsey Field, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.6 miles away.

measured now2 instruments

North Island NASNZY

At an airfield/0.6 mi away/26 ft/level with here

temp, wind, gust, visibility, precip, pressure

Mission Valley RAWSBVDC1

A remote fire weather station/7.4 mi away/305 ft/279 ft above here

temp, wind, gust, humidity, pressure

measured daily2 instruments

San Diego 8.0 SWCA-SD-229

In a volunteer observer's own ground/2.8 mi away/211 ft/185 ft above here

precip, snowfall, snow depth

San Diego Sea WorldSWDC1

At a cooperative observer's station/4.7 mi away/-13 ft/39 ft below here

snowfall, snow depth, precip, high, low

-

Snow on the ground

Elsewhere in California

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

Near North Island Naval Air Station-Halsey Field

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

Near North Island Naval Air Station-Halsey Field