// Station · 9m ago

VLVT

Wattay International Airport

CAT MVFR

WIND 360° / 2 kt

VIS 5.0 SM

CEILING BKN at 5,000 ft

T/Td 26°C / 22°C

ALTIM 29.97 inHg

ELEV 564 FT

17.9851°N / 102.5667°E

LOCATION · Vientiane, LA

WIND

360°2 kt

VLVT · 564 FT

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

METRIC

NOW · 01Z

+6H

+12H

+18H

WIND

360°/2

VIS

5.0 SM

CEILING

BKN050

LAYERS

BKN050

T / Td

26 / 22

ALTIM

29.97"

// Interpretation

MVFR — visibility 5.0 SM. Light winds at 360°/2 kt, visibility 5.0 SM, broken at 5,000 ft. 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 VLVT 130100Z 36002KT 8000 BKN050 26/22 Q1015 NOSIG

VLVT · day 13 at 01:00 UTC · wind from 360° at 2 kt · visibility 5.0 SM · broken layer at 5,000 ft · temp 26°C / dewpoint 22°C · altimeter 29.97" Hg

// Runway analysis · computed from current METAR wind

Wind 360° @ 2 kt

ALL USABLE · WINDS CALM

WIND

360°2 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

13 HDG 130° —CALM —— 9,843'

31 HDG 310° —CALM —— 9,843'

Pattern altitude: 1,564 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

2,000FT

+1,436 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV564 FT OAT+26°C ISA DELTA+12°C PRESSURE ALT511 FT

// Performance equivalent Operating here right now feels like operating at VLLN (Luang Namtha Airport, Luang Namtha, elev 1,968 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+20%

-14%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+14%

-9%

Light jetCJ4, Phenom 300, M2

+8%

-6%

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)

BKN050

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

// Computed

CEILING5,000 ft AGL HIGHEST LAYER5,000 ft TOTAL COVERAGE~75% (mostly covered) FREEZING LEVEL13,695 ft VFR MARGIN+2,000 ft

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

23:03ZSUNRISE

04:57ZSOLAR NOON

10:50ZSUNSET

11:12ZCIVIL END

CURRENT01:09Z DAYLIGHT REMAINING9h 41m VFR NIGHT BEGINS11:12Z (10h 03m) DAY LENGTH11h 47m

Waxing Crescent

ILLUMINATION3% MOONRISE00:24Z MOONSET12:11Z 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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