// Station · 33m ago

VTBD

Don Mueang International Airport

CAT VFR

WIND 030° / 5 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 28°C / 22°C

ALTIM 29.94 inHg

ELEV 9 FT

13.9126°N / 100.6070°E

LOCATION · Bangkok, TH

WIND

030°5 kt

VTBD · 9 FT

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

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

030°/5

VIS

6+ SM

CEILING

—

LAYERS

FEW020

T / Td

28 / 22

ALTIM

29.94"

// Interpretation

VFR with light winds at 030°/5 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 VTBD 130030Z 03005KT 9999 FEW020 28/22 Q1014 NOSIG

VTBD · day 13 at 00:30 UTC · wind from 030° at 5 kt · visibility 6+ SM · a few clouds at 2,000 ft · temp 28°C / dewpoint 22°C · altimeter 29.94" Hg

// Runway analysis · computed from current METAR wind

Wind 030° @ 5 kt

2 USABLE · 2 AVOID

WIND

030°5 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

03L★ HDG 030° H5 kt X0 kt — PRIMARY · 12,139'

03R HDG 030° H5 kt X0 kt — 11,483'

TAILWIND ENDS · AVOID 2 ends

21R HDG 210° T5 kt X0 kt — —

21L HDG 210° T5 kt X0 kt — —

Pattern altitude: 1,009 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

1,500FT

+1,491 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV9 FT OAT+28°C ISA DELTA+13°C PRESSURE ALT-14 FT

// Performance equivalent Operating here right now feels like operating at VTCT (Mae Fah Luang - Chiang Rai International Airport, Chiang Rai, elev 1,280 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+15%

-11%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+11%

-7%

Light jetCJ4, Phenom 300, M2

+6%

-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 LEVEL14,150 ft VFR MARGINunlimited

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

23:09ZSUNRISE

05:05ZSOLAR NOON

11:00ZSUNSET

11:22ZCIVIL END

CURRENT01:03Z DAYLIGHT REMAINING9h 57m VFR NIGHT BEGINS11:22Z (10h 18m) DAY LENGTH11h 51m

Waxing Crescent

ILLUMINATION3% MOONRISE00:30Z MOONSET12:21Z 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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