// Station · 17m ago

VVVD

Van Don International Airport

CAT VFR

WIND 170° / 2 kt

VIS 6+ SM

CEILING BKN at 6,700 ft

T/Td 27°C / 27°C

ALTIM 29.56 inHg

ELEV 24 FT

21.1207°N / 107.4154°E

LOCATION · Van Don, VN

WIND

170°2 kt

VVVD · 24 FT

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

METRIC

NOW · 16Z

+6H

+12H

+18H

WIND

170°/2

VIS

6+ SM

CEILING

BKN067

LAYERS

BKN067

T / Td

27 / 27

ALTIM

29.56"

// Interpretation

VFR — ceiling 6,700 ft. Light winds at 170°/2 kt, visibility 6+ SM, broken at 6,700 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 VVVD 251600Z AUTO 17002KT 9999 BKN067/// 27/27 Q1001

VVVD · day 25 at 16:00 UTC · wind from 170° at 2 kt · visibility 6+ SM · broken layer at 6,700 ft · temp 27°C / dewpoint 27°C · altimeter 29.56" Hg

// Runway analysis · computed from current METAR wind

Wind 170° @ 2 kt

ALL USABLE · WINDS CALM

WIND

170°2 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

03 HDG 030° —CALM —— 11,811'

21 HDG 210° —CALM —— 11,811'

Pattern altitude: 1,024 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

1,900FT

+1,876 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV24 FT OAT+27°C ISA DELTA+13°C PRESSURE ALT384 FT

// Performance equivalent Operating here right now feels like operating at VVDB (Dien Bien Phu Airport, Dien Bien Phu, elev 1,611 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+19%

-13%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+13%

-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)

BKN067

Broken · base 6,700 ft AGL · ~5–7 oktas

// Computed

CEILING6,700 ft AGL HIGHEST LAYER6,700 ft TOTAL COVERAGE~75% (mostly covered) FREEZING LEVEL13,660 ft VFR MARGIN+3,700 ft

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

22:33ZSUNRISE

04:54ZSOLAR NOON

11:14ZSUNSET

11:37ZCIVIL END

CURRENT16:17Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS11:37Z (past) DAY LENGTH12h 41m

Waxing Gibbous

ILLUMINATION94% MOONRISE08:35Z MOONSET21:17Z FULL MOON IN2 days

// Nearest reporting stations

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

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