// Station · 1h 4m ago · STALE

VTSF

Nakhon Si Thammarat Airport

CAT MVFR

WIND CALM

VIS 5.0 SM

CEILING BKN at 10,000 ft

T/Td 25°C / 25°C

ALTIM 29.88 inHg

WX -RA

ELEV 13 FT

8.5396°N / 99.9447°E

LOCATION · Nakhon Si Thammarat, TH

WIND

000°0 kt

VTSF · 13 FT

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

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

CALM

VIS

5.0 SM

CEILING

BKN100

LAYERS

SCT018 BKN100

T / Td

25 / 25

ALTIM

29.88"

// Interpretation

MVFR — visibility 5.0 SM. Winds calm, visibility 5.0 SM, scattered at 1,800 ft, and broken at 10,000 ft. Reported weather: light rain (-RA). Would drop to IFR below 1,000 ft ceiling or 3 SM visibility, or rise back to VFR above 3,000 ft and 5 SM.

Loading TAF forecast narrative…

SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR VTSF 130000Z 00000KT 8000 -RA SCT018 BKN100 25/25 Q1012 NOSIG

VTSF · day 13 at 00:00 UTC · winds calm · visibility 5.0 SM · scattered layer at 1,800 ft · broken layer at 10,000 ft · temp 25°C / dewpoint 25°C · altimeter 29.88" Hg · weather: light rain (-RA)

// Runway analysis · computed from current METAR wind

Wind CALM

ALL USABLE · WINDS CALM

WIND

000°calm

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

01 HDG 010° —CALM —— 6,890'

19 HDG 190° —CALM —— 6,890'

Pattern altitude: 1,013 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 +10°C

1,300FT

+1,287 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV13 FT OAT+25°C ISA DELTA+10°C PRESSURE ALT49 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

+13%

-9%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+9%

-6%

Light jetCJ4, Phenom 300, M2

+5%

-4%

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)

BKN100

Broken · base 10,000 ft AGL · ~5–7 oktas

SCT018

Scattered · base 1,800 ft AGL · ~3–4 oktas

// Computed

CEILING10,000 ft AGL HIGHEST LAYER10,000 ft TOTAL COVERAGE~83% (mostly covered) FREEZING LEVEL12,639 ft VFR MARGIN+7,000 ft

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

23:08ZSUNRISE

05:07ZSOLAR NOON

11:06ZSUNSET

11:27ZCIVIL END

CURRENT01:04Z DAYLIGHT REMAINING10h 01m VFR NIGHT BEGINS11:27Z (10h 22m) DAY LENGTH11h 57m

Waxing Crescent

ILLUMINATION3% MOONRISE00:29Z MOONSET12:27Z 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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