// Station · 12m ago

ZSSS

Shanghai Hongqiao International Airport

CAT VFR

WIND 140° / 8 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 28°C / 25°C

ALTIM 29.74 inHg

ELEV 10 FT

31.1981°N / 121.3343°E

LOCATION · Shanghai (Minhang), CN

WIND

140°8 kt

ZSSS · 10 FT

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

METRIC

NOW · 18Z

+6H

+12H

+18H

WIND

140°/8

VIS

6+ SM

CEILING

—

LAYERS

FEW020

T / Td

28 / 25

ALTIM

29.74"

// Interpretation

VFR with moderate winds at 140°/8 kt. Visibility 6+ SM and a few at 2,000 ft. Would shift to MVFR if the ceiling drops to 3,000 ft or visibility below 5 SM.

Loading TAF forecast narrative…

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

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// Raw observation METAR string + decoded

METAR ZSSS 251800Z 14004MPS 9999 FEW020 28/25 Q1007 NOSIG

ZSSS · day 25 at 18:00 UTC · wind from 140° at 8 kt · visibility 6+ SM · a few clouds at 2,000 ft · temp 28°C / dewpoint 25°C · altimeter 29.74" Hg

// Runway analysis · computed from current METAR wind

Wind 140° @ 8 kt

2 USABLE · 2 AVOID

WIND

140°8 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

18L★ HDG 180° H6 kt X5 kt LEFT PRIMARY · 11,154'

18R HDG 180° H6 kt X5 kt LEFT 10,826'

TAILWIND ENDS · AVOID 2 ends

36R HDG 360° T6 kt X5 kt RIGHT —

36L HDG 360° T6 kt X5 kt RIGHT —

Pattern altitude: 1,010 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

1,800FT

+1,790 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV10 FT OAT+28°C ISA DELTA+13°C PRESSURE ALT193 FT

// Performance equivalent Operating here right now feels like operating at ZUWL (Chongqing Xiannüshan Airport, Wulong, elev 1,747 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+18%

-13%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+13%

-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 · 1 reported · highest to lowest

// Reported layers (highest → lowest)

FEW020

Few · base 2,000 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER2,000 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL14,151 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+8)

21:28ZSUNRISE

03:58ZSOLAR NOON

10:28ZSUNSET

10:53ZCIVIL END

CURRENT18:12Z DAYLIGHT REMAINING16h 15m VFR NIGHT BEGINS10:53Z (16h 40m) DAY LENGTH12h 59m

Waxing Gibbous

ILLUMINATION94% MOONRISE07:34Z MOONSET20:34Z FULL MOON IN2 days

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

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