// Station · 7h 10m ago · STALE · HARD STALE

VTUI

Sakon Nakhon Airport

CAT VFR

WIND 160° / 5 kt

VIS 6+ SM

CEILING BKN at 4,000 ft

T/Td 29°C / 26°C

ALTIM 29.62 inHg

ELEV 529 FT

17.1951°N / 104.1190°E

WIND

160°5 kt

VTUI · 529 FT

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

METRIC

NOW · 11Z

+6H

+12H

+18H

WIND

160°/5

VIS

6+ SM

CEILING

BKN040

LAYERS

BKN040

T / Td

29 / 26

ALTIM

29.62"

// Interpretation

VFR — ceiling 4,000 ft. Light winds at 160°/5 kt, visibility 6+ SM, broken at 4,000 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 VTUI 251100Z 16005KT 9999 BKN040 29/26 Q1003 NOSIG

VTUI · day 25 at 11:00 UTC · wind from 160° at 5 kt · visibility 6+ SM · broken layer at 4,000 ft · temp 29°C / dewpoint 26°C · altimeter 29.62" Hg

// Runway analysis · computed from current METAR wind

Wind 160° @ 5 kt

1 USABLE · 1 AVOID

WIND

160°5 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

23★ HDG 230° H2 kt X5 kt LEFT PRIMARY · 8,530'

TAILWIND ENDS · AVOID 1 ends

05 HDG 050° T2 kt X5 kt RIGHT —

Pattern altitude: 1,529 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

2,700FT

+2,171 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV529 FT OAT+29°C ISA DELTA+16°C PRESSURE ALT830 FT

// Performance equivalent Your aircraft will perform as if it's at a field 2,700 ft high on a standard ISA day — that's +2,171 ft above VTUI's actual elevation.

// Aircraft performance impact SIGNIFICANT

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+27%

-19%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+19%

-12%

Light jetCJ4, Phenom 300, M2

+11%

-8%

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)

BKN040

Broken · base 4,000 ft AGL · ~5–7 oktas

// Computed

CEILING4,000 ft AGL HIGHEST LAYER4,000 ft TOTAL COVERAGE~75% (mostly covered) FREEZING LEVEL15,175 ft VFR MARGIN+1,000 ft

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

22:50ZSUNRISE

05:07ZSOLAR NOON

11:23ZSUNSET

11:45ZCIVIL END

CURRENT18:10Z DAYLIGHT REMAINING17h 12m VFR NIGHT BEGINS11:45Z (17h 34m) DAY LENGTH12h 33m

Waxing Gibbous

ILLUMINATION94% MOONRISE08:56Z MOONSET21:30Z FULL MOON IN2 days

// Nearest reporting stations

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

AIRSPACE

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