// Station · 13m ago

VVCI

Cat Bi International Airport

CAT MVFR

WIND VRB / 2 kt

VIS 3.7 SM

CEILING CLR

T/Td 26°C / 25°C

ALTIM 29.53 inHg

ELEV 6 FT

20.8174°N / 106.7243°E

LOCATION · Haiphong (Hai An), VN

WIND

VRB2 kt

VVCI · 6 FT

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

METRIC

NOW · 18Z

+6H

+12H

+18H

WIND

VRB/2

VIS

3.7 SM

CEILING

CLR

LAYERS

—

T / Td

26 / 25

ALTIM

29.53"

// Interpretation

MVFR — visibility 3.7 SM. Light winds at variable/2 kt, visibility 3.7 SM, no reported cloud layers. 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 VVCI 251800Z VRB02KT 6000 NSC 26/25 Q1000 NOSIG

VVCI · day 25 at 18:00 UTC · wind variable at 2 kt · visibility 3.7 SM · temp 26°C / dewpoint 25°C · altimeter 29.53" 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

07 HDG 070° —CALM —— 10,007'

25 HDG 250° —CALM —— 10,007'

Pattern altitude: 1,006 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

1,800FT

+1,794 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV6 FT OAT+26°C ISA DELTA+12°C PRESSURE ALT396 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

+18%

-13%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+13%

-8%

Light jetCJ4, Phenom 300, M2

+7%

-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 · clear · no layers reported

// Reported layers (highest → lowest)

CLR

No reported cloud layers — clear sky from surface to reporting ceiling.

// Computed

CEILING— HIGHEST LAYER— TOTAL COVERAGEclear FREEZING LEVEL13,137 ft VFR MARGINunlimited

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

22:36ZSUNRISE

04:56ZSOLAR NOON

11:16ZSUNSET

11:39ZCIVIL END

CURRENT18:13Z DAYLIGHT REMAINING17h 02m VFR NIGHT BEGINS11:39Z (17h 25m) DAY LENGTH12h 39m

Waxing Gibbous

ILLUMINATION94% MOONRISE08:43Z MOONSET21:22Z 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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