// Station · 25m ago

VVNB

Noi Bai International Airport

CAT VFR

WIND 060° / 4 kt

VIS 6+ SM

CEILING CLR

T/Td 29°C / 27°C

ALTIM 29.50 inHg

ELEV 39 FT

21.2212°N / 105.8070°E

LOCATION · Hanoi (Soc Son), VN

WIND

060°4 kt

VVNB · 39 FT

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

METRIC

NOW · 14Z

+6H

+12H

+18H

WIND

060°/4

VIS

6+ SM

CEILING

CLR

LAYERS

—

T / Td

29 / 27

ALTIM

29.50"

// Interpretation

VFR with light winds at 060°/4 kt. Visibility 6+ SM and no reported cloud layers. 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 VVNB 111400Z 06004KT 010V080 CAVOK 29/27 Q0999 NOSIG

VVNB · day 11 at 14:00 UTC · wind from 060° at 4 kt · visibility 6+ SM · temp 29°C / dewpoint 27°C · altimeter 29.50" Hg

// Runway analysis · computed from current METAR wind

Wind 060° @ 4 kt

ALL USABLE · WINDS CALM

WIND

060°4 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 4 ends

11R HDG 110° —CALM —— 12,466'

29L HDG 290° —CALM —— 12,466'

11L HDG 110° —CALM —— 10,499'

29R HDG 290° —CALM —— 10,499'

Pattern altitude: 1,039 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 +15°C

2,200FT

+2,161 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↗ +300 FT

24h AGO18h12h6hNOW

FIELD ELEV39 FT OAT+29°C ISA DELTA+15°C PRESSURE ALT459 FT

// Performance equivalent Operating here right now feels like operating at VVPK (Pleiku Airport, Pleiku, elev 2,434 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+22%

-15%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+15%

-10%

Light jetCJ4, Phenom 300, M2

+9%

-7%

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.

// 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 LEVEL14,685 ft VFR MARGINunlimited

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

22:22ZSUNRISE

05:03ZSOLAR NOON

11:43ZSUNSET

12:08ZCIVIL END

CURRENT14:25Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS12:08Z (past) DAY LENGTH13h 20m

Waning Crescent

ILLUMINATION11% MOONRISE19:47Z MOONSET09:07Z FULL MOON IN18 days

// Nearest reporting stations · 2 shown · 100 NM (sparse area)

VVCI

VFR

Cat Bi International Airport · Haiphong (Hai An)

WIND: 100° / 5 kt
VIS: 6+ SM
CEILING: FEW017
DIST: 57 NM SE
AGE: 25m ago

VVVD

VFR

Van Don International Airport · Van Don

WIND: 080° / 2 kt
VIS: 6+ SM
CEILING: FEW130
DIST: 90 NM E
AGE: 25m ago

// Area map · 100 NM radius · CartoDB Dark Matter + aeronautical overlay

AIRSPACE

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