// Station · 36m ago

RCSS

Taipei Songshan International Airport

CAT VFR

WIND 280° / 5 kt

VIS 6+ SM

CEILING BKN at 10,000 ft

T/Td 28°C / 24°C

ALTIM 29.29 inHg

ELEV 18 FT

25.0672°N / 121.5528°E

LOCATION · Taipei (Songshan), TW

WIND

280°5 kt

RCSS · 18 FT

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

METRIC

NOW · 15Z

+6H

+12H

+18H

WIND

280°/5

VIS

6+ SM

CEILING

BKN100

LAYERS

FEW009 SCT055 BKN100

T / Td

28 / 24

ALTIM

29.29"

// Interpretation

VFR — ceiling 10,000 ft. Light winds at 280°/5 kt, visibility 6+ SM, a few at 900 ft, scattered at 5,500 ft, and broken at 10,000 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 RCSS 111530Z 28005KT 250V310 9999 FEW009 SCT055 BKN100 28/24 Q0992 NOSIG RMK A2930

RCSS · day 11 at 15:30 UTC · wind from 280° at 5 kt · visibility 6+ SM · a few clouds at 900 ft · scattered layer at 5,500 ft · broken layer at 10,000 ft · temp 28°C / dewpoint 24°C · altimeter 29.29" Hg

// Runway analysis · computed from current METAR wind

Wind 280° @ 5 kt

1 USABLE · 1 AVOID

WIND

280°5 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

28★ HDG 280° H5 kt X0 kt — PRIMARY · 8,547'

TAILWIND ENDS · AVOID 1 ends

10 HDG 100° T5 kt X0 kt — —

Pattern altitude: 1,018 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

2,400FT

+2,382 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↗ +200 FT

24h AGO18h12h6hNOW

FIELD ELEV18 FT OAT+28°C ISA DELTA+14°C PRESSURE ALT644 FT

// Performance equivalent Your aircraft will perform as if it's at a field 2,400 ft high on a standard ISA day — that's +2,382 ft above RCSS's actual elevation.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+24%

-17%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+17%

-11%

Light jetCJ4, Phenom 300, M2

+10%

-7%

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.

// Cloud layers · 3 reported · highest to lowest

// Reported layers (highest → lowest)

BKN100

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

SCT055

Scattered · base 5,500 ft AGL · ~3–4 oktas

FEW009

Few · base 900 ft AGL · ~1–2 oktas

// Computed

CEILING10,000 ft AGL HIGHEST LAYER10,000 ft TOTAL COVERAGE~91% (overcast) FREEZING LEVEL14,159 ft VFR MARGIN+7,000 ft

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

21:12ZSUNRISE

04:00ZSOLAR NOON

10:48ZSUNSET

11:13ZCIVIL END

CURRENT16:06Z DAYLIGHT REMAINING18h 41m VFR NIGHT BEGINS11:13Z (19h 07m) DAY LENGTH13h 35m

Waning Crescent

ILLUMINATION11% MOONRISE18:40Z MOONSET08:15Z FULL MOON IN18 days

// Nearest reporting stations · 3 shown · 100 NM (sparse area)

RCTP

VFR

Taiwan Taoyuan International Airport · Taoyuan

WIND: 210° / 18 kt
VIS: 6+ SM
CEILING: BKN150
DIST: 17 NM W
AGE: 6m ago

RCMQ

VFR → IFR 23Z

Taichung International Airport / Ching Chuang Kang Air Base · Taichung (Qingshui)

WIND: 180° / 13 kt
VIS: 6+ SM
CEILING: BKN050
DIST: 70 NM SW
AGE: 14m ago

ROYN

MVFR

Yonaguni Airport · Yonaguni

WIND: 190° / 26 ktG42
VIS: 4.3 SM
CEILING: BKN017
DIST: 86 NM SE
AGE: 6m ago

// Area map · 100 NM radius · CartoDB Dark Matter + aeronautical overlay

AIRSPACE

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