// Station · 7m ago

TJSJ

Luis Munoz Marin International Airport

CAT VFR

WIND 080° / 4 kt

VIS 10+ SM

CEILING BKN at 4,600 ft

T/Td 28.3°C / 25°C

ALTIM 29.95 inHg

ELEV 9 FT

18.4394°N / 66.0018°W

LOCATION · San Juan, PR

WIND

080°4 kt

TJSJ · 9 FT

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

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

080°/4

VIS

10+ SM

CEILING

BKN046

LAYERS

FEW021 SCT027 BKN046

T / Td

28 / 25

ALTIM

29.95"

// Interpretation

VFR — ceiling 4,600 ft. Light winds at 080°/4 kt, visibility better than 10 statute miles, a few at 2,100 ft, scattered at 2,700 ft, and broken at 4,600 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 TJSJ 130056Z 08004KT 10SM FEW021 SCT027 BKN046 28/25 A2995 RMK AO2 RAB31E42 SLP141 P0000 T02830250 $

TJSJ · day 13 at 00:56 UTC · wind from 080° at 4 kt · visibility 10+ SM · a few clouds at 2,100 ft · scattered layer at 2,700 ft · broken layer at 4,600 ft · temp 28°C / dewpoint 25°C · altimeter 29.95" Hg · automated station w/ precipitation discriminator · sea-level pressure 1014.1 mb

// Runway analysis · computed from current METAR wind

Wind 080° @ 4 kt

ALL USABLE · WINDS CALM

WIND

080°4 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 4 ends

08 HDG 080° —CALM —— 10,002'

26 HDG 260° —CALM —— 10,002'

10 HDG 100° —CALM —— 8,016'

28 HDG 280° —CALM —— 8,016'

Pattern altitude: 1,009 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 +13°C

1,600FT

+1,591 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV9 FT OAT+28°C ISA DELTA+13°C PRESSURE ALT-23 FT

// Performance equivalent Your aircraft will perform as if it's at a field 1,600 ft high on a standard ISA day — that's +1,591 ft above TJSJ's actual elevation.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+16%

-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 · 3 reported · highest to lowest

// Reported layers (highest → lowest)

BKN046

Broken · base 4,600 ft AGL · ~5–7 oktas

SCT027

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

FEW021

Few · base 2,100 ft AGL · ~1–2 oktas

// Computed

CEILING4,600 ft AGL HIGHEST LAYER4,600 ft TOTAL COVERAGE~91% (overcast) FREEZING LEVEL14,302 ft VFR MARGIN+1,600 ft

// Sun & Moon · times in Z · bar = local day (UTC-4)

10:18ZSUNRISE

16:11ZSOLAR NOON

22:05ZSUNSET

22:27ZCIVIL END

CURRENT01:03Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS22:27Z (past) DAY LENGTH11h 47m

Waxing Crescent

ILLUMINATION3% MOONRISE11:38Z MOONSET23:26Z FULL MOON IN13 days

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

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