// Station · 18m ago

VTBS

Suvarnabhumi Airport

CAT VFR

WIND 230° / 8 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 28°C / 23°C

ALTIM 29.74 inHg

ELEV 5 FT

13.6811°N / 100.7470°E

LOCATION · Bangkok, TH

WIND

230°8 kt

VTBS · 5 FT

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

METRIC

NOW · 22Z

+6H

+12H

+18H

WIND

230°/8

VIS

6+ SM

CEILING

—

LAYERS

FEW020

T / Td

28 / 23

ALTIM

29.74"

// Interpretation

VFR with moderate winds at 230°/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 VTBS 252200Z 23008KT 9999 FEW020 28/23 Q1007 NOSIG

VTBS · day 25 at 22:00 UTC · wind from 230° at 8 kt · visibility 6+ SM · a few clouds at 2,000 ft · temp 28°C / dewpoint 23°C · altimeter 29.74" Hg

// Runway analysis · computed from current METAR wind

Wind 230° @ 8 kt

3 USABLE · 3 AVOID

WIND

230°8 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 3 usable

20R★ HDG 200° H7 kt X4 kt RIGHT PRIMARY · 13,123'

20L HDG 200° H7 kt X4 kt RIGHT 12,139'

19 HDG 190° H6 kt X5 kt RIGHT 13,123'

TAILWIND ENDS · AVOID 3 ends

01 HDG 010° T6 kt X5 kt LEFT —

02L HDG 020° T7 kt X4 kt LEFT —

02R HDG 020° T7 kt X4 kt LEFT —

Pattern altitude: 1,005 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

+1,795 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV5 FT OAT+28°C ISA DELTA+13°C PRESSURE ALT188 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 +1,795 ft above VTBS's actual elevation.

// 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 LEVEL14,146 ft VFR MARGINunlimited

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

23:06ZSUNRISE

05:20ZSOLAR NOON

11:34ZSUNSET

11:56ZCIVIL END

CURRENT22:18Z DAYLIGHT REMAINING13h 15m VFR NIGHT BEGINS11:56Z (13h 37m) DAY LENGTH12h 27m

Waxing Gibbous

ILLUMINATION95% MOONRISE09:21Z MOONSET21:49Z FULL MOON IN2 days

// Nearest reporting stations

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

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