// Station · 1h 40m ago · STALE

RCFN

Taitung Airport

CAT VFR

WIND 260° / 3 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 27°C / 26°C

ALTIM 29.77 inHg

ELEV 143 FT

22.7549°N / 121.1018°E

LOCATION · Taitung City, TW

WIND

260°3 kt

RCFN · 143 FT

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

METRIC

NOW · 12Z

+6H

+12H

+18H

WIND

260°/3

VIS

6+ SM

CEILING

—

LAYERS

FEW015 SCT100

T / Td

27 / 26

ALTIM

29.77"

// Interpretation

VFR with light winds at 260°/3 kt. Visibility 6+ SM and a few at 1,500 ft, and scattered 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 RCFN 271230Z 26003KT 9999 FEW015 SCT100 27/26 Q1008 NOSIG RMK A2977

RCFN · day 27 at 12:30 UTC · wind from 260° at 3 kt · visibility 6+ SM · a few clouds at 1,500 ft · scattered layer at 10,000 ft · temp 27°C / dewpoint 26°C · altimeter 29.77" Hg

// Runway analysis · computed from current METAR wind

Wind 260° @ 3 kt

ALL USABLE · WINDS CALM

WIND

260°3 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

04 HDG 040° —CALM —— 7,999'

22 HDG 220° —CALM —— 7,999'

Pattern altitude: 1,143 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

+1,657 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↗ +300 FT

24h AGO18h12h6hNOW

FIELD ELEV143 FT OAT+27°C ISA DELTA+13°C PRESSURE ALT297 FT

// Performance equivalent Your aircraft will perform as if it's at a field 1,800 ft high on a standard ISA day — that's +1,657 ft above RCFN's actual elevation.

// Aircraft performance impact MINOR

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.

// Cloud layers · 2 reported · highest to lowest

// Reported layers (highest → lowest)

SCT100

Scattered · base 10,000 ft AGL · ~3–4 oktas

FEW015

Few · base 1,500 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER10,000 ft TOTAL COVERAGE~48% (mixed) FREEZING LEVEL13,779 ft VFR MARGINunlimited

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

21:12ZSUNRISE

03:54ZSOLAR NOON

10:35ZSUNSET

11:00ZCIVIL END

CURRENT14:10Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS11:00Z (past) DAY LENGTH13h 22m

Waxing Gibbous

ILLUMINATION84% MOONRISE06:02Z MOONSET19:25Z FULL MOON IN4 days

// Nearest reporting stations · 2 shown · 60 NM radius

RCKH

VFR

Kaohsiung International Airport · Kaohsiung (Xiaogang)

WIND: 300° / 3 kt
VIS: 6+ SM
CEILING: FEW018
DIST: 43 NM W
AGE: 10m ago

RCNN

VFR

Tainan International Airport / Tainan Air Base · Tainan (Rende)

WIND: 200° / 2 kt
VIS: 6+ SM
CEILING: FEW012
DIST: 51 NM W
AGE: 10m ago

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

AIRSPACE

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