// Station · 27m ago

RCMQ

Taichung International Airport / Ching Chuang Kang Air Base

CAT VFR

WIND 310° / 5 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 30°C / 21°C

ALTIM 30.06 inHg

ELEV 663 FT

24.2647°N / 120.6210°E

LOCATION · Taichung (Qingshui), TW

WIND

310°5 kt

RCMQ · 663 FT

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

METRIC

NOW · 02Z

+6H

+12H

+18H

WIND

310°/5

VIS

6+ SM

CEILING

—

LAYERS

FEW012 SCT200

T / Td

30 / 21

ALTIM

30.06"

// Interpretation

VFR with light winds at 310°/5 kt. Visibility 6+ SM and a few at 1,200 ft, and scattered at 20,000 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 RCMQ 130200Z 31005KT 9999 FEW012 SCT200 30/21 Q1018 NOSIG RMK A3006

RCMQ · day 13 at 02:00 UTC · wind from 310° at 5 kt · visibility 6+ SM · a few clouds at 1,200 ft · scattered layer at 20,000 ft · temp 30°C / dewpoint 21°C · altimeter 30.06" Hg

// Runway analysis · computed from current METAR wind

Wind 310° @ 5 kt

1 USABLE · 1 AVOID

WIND

310°5 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

36★ HDG 360° H3 kt X4 kt LEFT PRIMARY · 12,000'

TAILWIND ENDS · AVOID 1 ends

18 HDG 180° T3 kt X4 kt RIGHT —

Pattern altitude: 1,663 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 +16°C

2,400FT

+1,737 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV663 FT OAT+30°C ISA DELTA+16°C PRESSURE ALT521 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 +1,737 ft above RCMQ's actual elevation.

// Aircraft performance impact MODERATE

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. 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)

SCT200

Scattered · base 20,000 ft AGL · ~3–4 oktas

FEW012

Few · base 1,200 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER20,000 ft TOTAL COVERAGE~48% (mixed) FREEZING LEVEL15,815 ft VFR MARGINunlimited

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

21:55ZSUNRISE

03:45ZSOLAR NOON

09:34ZSUNSET

09:57ZCIVIL END

CURRENT02:27Z DAYLIGHT REMAINING7h 07m VFR NIGHT BEGINS09:57Z (7h 30m) DAY LENGTH11h 39m

Waxing Crescent

ILLUMINATION3% MOONRISE23:18Z MOONSET10:58Z 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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