// Station · 13m ago

MYSM

San Salvador International Airport

CAT VFR

WIND 140° / 11 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 33°C / 25°C

ALTIM 30.06 inHg

ELEV 24 FT

24.0630°N / 74.5232°W

LOCATION · San Salvador, BS

WIND

140°11 kt

MYSM · 24 FT

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

METRIC

NOW · 18Z

+6H

+12H

+18H

WIND

140°/11

VIS

6+ SM

CEILING

—

LAYERS

SCT027

T / Td

33 / 25

ALTIM

30.06"

// Interpretation

VFR with moderate winds at 140°/11 kt. Visibility 6+ SM and scattered at 2,700 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 MYSM 251800Z AUTO 14011KT 110V170 9999 SCT027/// 33/25 A3006

MYSM · day 25 at 18:00 UTC · wind from 140° at 11 kt · visibility 6+ SM · scattered layer at 2,700 ft · temp 33°C / dewpoint 25°C · altimeter 30.06" Hg

// Runway analysis · computed from current METAR wind

Wind 140° @ 11 kt

1 USABLE · 1 AVOID · 1 CAUTION

WIND

140°11 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

10★ HDG 100° H8 kt X7 kt RIGHT PRIMARY · 8,000'

TAILWIND ENDS · AVOID 1 ends

28 HDG 280° T8 kt X7 kt LEFT —

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 +18°C

2,000FT

+1,976 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV24 FT OAT+33°C ISA DELTA+18°C PRESSURE ALT-118 FT

// Performance equivalent Your aircraft will perform as if it's at a field 2,000 ft high on a standard ISA day — that's +1,976 ft above MYSM's actual elevation.

// Aircraft performance impact SIGNIFICANT

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+20%

-14%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+14%

-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)

SCT027

Scattered · base 2,700 ft AGL · ~3–4 oktas

// Computed

CEILING— HIGHEST LAYER2,700 ft TOTAL COVERAGE~40% (mixed) FREEZING LEVEL16,691 ft VFR MARGINunlimited

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

10:38ZSUNRISE

17:01ZSOLAR NOON

23:24ZSUNSET

23:48ZCIVIL END

CURRENT18:13Z DAYLIGHT REMAINING5h 11m VFR NIGHT BEGINS23:48Z (5h 34m) DAY LENGTH12h 46m

Waxing Gibbous

ILLUMINATION94% MOONRISE20:44Z MOONSET09:31Z 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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