// Station · 5m ago

WSSS

Singapore Changi Airport

CAT LIFR

WIND 120° / 6 kt

VIS 0.93 SM

CEILING BKN at 16,000 ft

T/Td 29°C / 26°C

ALTIM 29.91 inHg

WX HZ

ELEV 22 FT

1.3502°N / 103.9940°E

LOCATION · Singapore, SG

WIND

120°6 kt

WSSS · 22 FT

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

METRIC

NOW · 01Z

+6H

+12H

+18H

WIND

120°/6

VIS

0.93 SM

CEILING

BKN160

LAYERS

FEW016 BKN160

T / Td

29 / 26

ALTIM

29.91"

// Interpretation

LIFR — visibility 0.93 SM. Light winds at 120°/6 kt, visibility 0.93 SM, a few at 1,600 ft, and broken at 16,000 ft. Reported weather: haze (HZ). Haze is fine dust, salt, or pollution particles suspended in dry air — it reduces visibility and washes out contrast, a dry particulate obscuration rather than a moisture one. LIFR is the lowest standard category. Would improve to IFR above 500 ft and 1 SM.

Loading TAF forecast narrative…

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

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// Raw observation METAR string + decoded

METAR WSSS 130100Z 12006KT 090V160 1500 HZ FEW016 BKN160 29/26 Q1013 NOSIG

WSSS · day 13 at 01:00 UTC · wind from 120° at 6 kt · visibility 0.93 SM · a few clouds at 1,600 ft · broken layer at 16,000 ft · temp 29°C / dewpoint 26°C · altimeter 29.91" Hg · weather: haze (HZ)

// Runway analysis · computed from current METAR wind

Wind 120° @ 6 kt

2 USABLE · 2 AVOID · 2 CAUTION

WIND

120°6 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

20C★ HDG 200° H1 kt X6 kt LEFT PRIMARY · 13,123'

20R HDG 200° H1 kt X6 kt LEFT ⚠ HIGH XW · 100%

TAILWIND ENDS · AVOID 2 ends

02C HDG 020° T1 kt X6 kt RIGHT —

02L HDG 020° T1 kt X6 kt RIGHT —

Pattern altitude: 1,022 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 +14°C

1,700FT

+1,678 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV22 FT OAT+29°C ISA DELTA+14°C PRESSURE ALT28 FT

// Performance equivalent Your aircraft will perform as if it's at a field 1,700 ft high on a standard ISA day — that's +1,678 ft above WSSS's actual elevation.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+17%

-12%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+12%

-8%

Light jetCJ4, Phenom 300, M2

+7%

-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 · 2 reported · highest to lowest

// Reported layers (highest → lowest)

BKN160

Broken · base 16,000 ft AGL · ~5–7 oktas

FEW016

Few · base 1,600 ft AGL · ~1–2 oktas

// Computed

CEILING16,000 ft AGL HIGHEST LAYER16,000 ft TOTAL COVERAGE~83% (mostly covered) FREEZING LEVEL14,668 ft VFR MARGIN+13,000 ft

// Sun & Moon · times in Z · bar = local day (UTC+7)

22:48ZSUNRISE

04:51ZSOLAR NOON

10:54ZSUNSET

11:15ZCIVIL END

CURRENT01:05Z DAYLIGHT REMAINING9h 48m VFR NIGHT BEGINS11:15Z (10h 09m) DAY LENGTH12h 05m

Waxing Crescent

ILLUMINATION3% MOONRISE00:09Z MOONSET12:15Z FULL MOON IN13 days

// Nearest reporting stations

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// Area map · 60 NM radius · CartoDB Dark Matter + aeronautical overlay

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