// Station · 28m ago

SANU

Domingo Faustino Sarmiento Airport

CAT VFR

WIND CALM

VIS 6+ SM

CEILING Few/scattered only

T/Td 17°C / 8°C

ALTIM 29.83 inHg

ELEV 1,958 FT

31.5715°S / 68.4182°W

LOCATION · San Juan, AR

WIND

000°0 kt

SANU · 1,958 FT

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

METRIC

NOW · 02Z

+6H

+12H

+18H

WIND

CALM

VIS

6+ SM

CEILING

—

LAYERS

SCT040

T / Td

17 / 8

ALTIM

29.83"

// Interpretation

VFR with winds calm. Visibility 6+ SM and scattered at 4,000 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 SANU 130200Z 00000KT 9999 SCT040 17/08 Q1010

SANU · day 13 at 02:00 UTC · winds calm · visibility 6+ SM · scattered layer at 4,000 ft · temp 17°C / dewpoint 8°C · altimeter 29.83" Hg

// Runway analysis · computed from current METAR wind

Wind CALM

ALL USABLE · WINDS CALM

WIND

000°calm

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

18 HDG 180° —CALM —— 8,071'

36 HDG 360° —CALM —— 8,071'

Pattern altitude: 2,958 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 +6°C

2,800FT

+842 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV1,958 FT OAT+17°C ISA DELTA+6°C PRESSURE ALT2,053 FT

// Performance equivalent Operating here right now feels like operating at SAMS (San Carlos Airport, San Carlos, elev 3,050 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+28%

-20%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+20%

-13%

Light jetCJ4, Phenom 300, M2

+11%

-8%

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)

SCT040

Scattered · base 4,000 ft AGL · ~3–4 oktas

// Computed

CEILING— HIGHEST LAYER4,000 ft TOTAL COVERAGE~40% (mixed) FREEZING LEVEL10,544 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-5)

09:59ZSUNRISE

16:21ZSOLAR NOON

22:43ZSUNSET

23:08ZCIVIL END

CURRENT02:28Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS23:08Z (past) DAY LENGTH12h 44m

Waxing Crescent

ILLUMINATION3% MOONRISE11:22Z MOONSET00:07Z FULL MOON IN13 days

// Nearest reporting stations

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

AIRSPACE

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