// Station · 6m ago

NSTU

Pago Pago International Airport

CAT MVFR

WIND 110° / 15 kt G21

VIS 10+ SM

CEILING BKN at 2,000 ft

T/Td 27.6°C / 21.8°C

ALTIM 29.89 inHg

ELEV 32 FT

14.3310°S / 170.7100°W

LOCATION · Pago Pago, AS

WIND

110°15 kt

NSTU · 32 FT

// Current + 24h forecast · METAR loaded · TAF loading…

METRIC

NOW · 01Z

+6H

+12H

+18H

WIND

110°/15G21

VIS

10+ SM

CEILING

BKN020

LAYERS

BKN020 BKN040 BKN100

T / Td

28 / 22

ALTIM

29.89"

// Interpretation

MVFR — ceiling 2,000 ft. Brisk winds at 110°/15 kt, gusting 21, visibility better than 10 statute miles, broken at 2,000 ft, broken at 4,000 ft, and broken at 10,000 ft. Would drop to IFR below 1,000 ft ceiling or 3 SM visibility, or rise back to VFR above 3,000 ft and 5 SM.

Loading TAF forecast narrative…

SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR NSTU 130150Z 11015G21KT 12SM BKN020TCU BKN040 BKN100 28/22 A2989 RMK TCU S-W SLP122 T02760218

NSTU · day 13 at 01:50 UTC · wind from 110° at 15 kt, gusts to 21 kt · visibility 10+ SM · broken layer at 2,000 ft · broken layer at 4,000 ft · broken layer at 10,000 ft · temp 28°C / dewpoint 22°C · altimeter 29.89" Hg · sea-level pressure 1012.2 mb

// Runway analysis · computed from current METAR wind

Wind 110° @ 15 ktG21

2 USABLE · 2 AVOID · 1 CAUTION

WIND

110°15G21 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

08★ HDG 080° H13 kt X7 kt RIGHT PRIMARY · 3,800'

05 HDG 050° H8 kt X13 kt RIGHT ⚠ HIGH XW · 62%

TAILWIND ENDS · AVOID 2 ends

23 HDG 230° T7 kt X13 kt LEFT —

26 HDG 260° T13 kt X7 kt LEFT —

Pattern altitude: 1,032 ft MSL (1,000 ft AGL). Verify pattern direction and altitude with the chart supplement before flying. // On calm winds (<3 kt), all runways are usable — favor the longest or whatever the pattern calls for.

// Density altitude · ISA +13°C

1,600FT

+1,568 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV32 FT OAT+28°C ISA DELTA+13°C PRESSURE ALT59 FT

// Performance equivalent Your aircraft will perform as if it's at a field 1,600 ft high on a standard ISA day — that's +1,568 ft above NSTU's actual elevation.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+16%

-11%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+11%

-7%

Light jetCJ4, Phenom 300, M2

+6%

-5%

Approximate using ~10% perf loss / 1,000 ft DA for normally aspirated, scaled by powerplant type. Verify with your aircraft's POH for accurate numbers — especially above 5,000 ft DA where these rules of thumb diverge. Severity rating assumes a standard altimeter setting (29.92" Hg / 1013 hPa); a non-standard setting shifts the effective altitude by roughly 1,000 ft per 1" Hg of deviation.

// Cloud layers · 3 reported · highest to lowest

// Reported layers (highest → lowest)

BKN100

Broken · base 10,000 ft AGL · ~5–7 oktas

BKN040

Broken · base 4,000 ft AGL · ~5–7 oktas

BKN020

Broken · base 2,000 ft AGL · ~5–7 oktas

// Computed

CEILING2,000 ft AGL HIGHEST LAYER10,000 ft TOTAL COVERAGE~91% (overcast) FREEZING LEVEL13,971 ft VFR MARGIN-1,000 ft

// Sun & Moon · times in Z · bar = local day (UTC-11)

16:59ZSUNRISE

23:10ZSOLAR NOON

05:21ZSUNSET

05:43ZCIVIL END

CURRENT01:56Z DAYLIGHT REMAINING3h 24m VFR NIGHT BEGINS05:43Z (3h 46m) DAY LENGTH12h 22m

Waxing Crescent

ILLUMINATION3% MOONRISE18:21Z MOONSET06:44Z FULL MOON IN13 days

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