// Station · 1h 5m ago · STALE

VTSM

Samui International Airport

CAT VFR

WIND VRB / 2 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 27°C / 26°C

ALTIM 29.91 inHg

ELEV 64 FT

9.5478°N / 100.0620°E

LOCATION · Na Thon (Ko Samui Island), TH

WIND

VRB2 kt

VTSM · 64 FT

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

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

VRB/2

VIS

6+ SM

CEILING

—

LAYERS

SCT020

T / Td

27 / 26

ALTIM

29.91"

// Interpretation

VFR with light winds at variable/2 kt. Visibility 6+ SM and scattered 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 VTSM 130000Z VRB02KT 9999 SCT020 27/26 Q1013 NOSIG

VTSM · day 13 at 00:00 UTC · wind variable at 2 kt · visibility 6+ SM · scattered layer at 2,000 ft · temp 27°C / dewpoint 26°C · altimeter 29.91" Hg

// Runway analysis · computed from current METAR wind

Wind VRB @ 2 kt

ALL USABLE · WINDS CALM

WIND

VRB2 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

17 HDG 170° —CALM —— 6,759'

35 HDG 350° —CALM —— 6,759'

Pattern altitude: 1,064 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 +12°C

1,500FT

+1,436 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV64 FT OAT+27°C ISA DELTA+12°C PRESSURE ALT70 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)

SCT020

Scattered · base 2,000 ft AGL · ~3–4 oktas

// Computed

CEILING— HIGHEST LAYER2,000 ft TOTAL COVERAGE~40% (mixed) FREEZING LEVEL13,700 ft VFR MARGINunlimited

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

23:09ZSUNRISE

05:07ZSOLAR NOON

11:05ZSUNSET

11:26ZCIVIL END

CURRENT01:05Z DAYLIGHT REMAINING9h 59m VFR NIGHT BEGINS11:26Z (10h 20m) DAY LENGTH11h 56m

Waxing Crescent

ILLUMINATION3% MOONRISE00:29Z MOONSET12:26Z 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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