// Station · 1h 17m ago · STALE

FMNA

Arrachart Airport

CAT VFR

WIND 140° / 10 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 25°C / 16°C

ALTIM 30.03 inHg

ELEV 374 FT

12.3494°S / 49.2917°E

LOCATION · Antisiranana, MG

WIND

140°10 kt

FMNA · 374 FT

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

METRIC

NOW · 15Z

+6H

+12H

+18H

WIND

140°/10

VIS

6+ SM

CEILING

—

LAYERS

FEW020

T / Td

25 / 16

ALTIM

30.03"

// Interpretation

VFR with moderate winds at 140°/10 kt. Visibility 6+ SM and a few at 2,000 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 FMNA 251500Z 14010KT 9999 FEW020 25/16 Q1017

FMNA · day 25 at 15:00 UTC · wind from 140° at 10 kt · visibility 6+ SM · a few clouds at 2,000 ft · temp 25°C / dewpoint 16°C · altimeter 30.03" Hg

// Runway analysis · computed from current METAR wind

Wind 140° @ 10 kt

1 USABLE · 1 AVOID

WIND

140°10 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

13★ HDG 130° H10 kt X2 kt RIGHT PRIMARY · 4,921'

TAILWIND ENDS · AVOID 1 ends

31 HDG 310° T10 kt X2 kt LEFT —

Pattern altitude: 1,374 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 +11°C

1,500FT

+1,126 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV374 FT OAT+25°C ISA DELTA+11°C PRESSURE ALT262 FT

// Performance equivalent Operating here right now feels like operating at FMND (Andapa Airport, elev 1,552 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+15%

-11%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+11%

-7%

Light jetCJ4, Phenom 300, M2

+6%

-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 · 1 reported · highest to lowest

// Reported layers (highest → lowest)

FEW020

Few · base 2,000 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER2,000 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL13,000 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+3)

02:52ZSUNRISE

08:46ZSOLAR NOON

14:40ZSUNSET

15:01ZCIVIL END

CURRENT16:17Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS15:01Z (past) DAY LENGTH11h 47m

Waxing Gibbous

ILLUMINATION94% MOONRISE12:55Z MOONSET00:42Z 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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