// Station · 18m ago

SBSL

Marechal Cunha Machado International Airport

CAT VFR

WIND 120° / 7 kt

VIS 6+ SM

CEILING BKN at 3,500 ft

T/Td 32°C / 23°C

ALTIM 29.88 inHg

ELEV 178 FT

2.5864°S / 44.2350°W

LOCATION · São Luís, BR

WIND

120°7 kt

SBSL · 178 FT

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

METRIC

NOW · 16Z

+6H

+12H

+18H

WIND

120°/7

VIS

6+ SM

CEILING

BKN035

LAYERS

BKN035 FEW040

T / Td

32 / 23

ALTIM

29.88"

// Interpretation

VFR — ceiling 3,500 ft. Light winds at 120°/7 kt, visibility 6+ SM, broken at 3,500 ft, and a few 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 SBSL 251600Z 12007KT 080V170 9999 BKN035 FEW040TCU 32/23 Q1012

SBSL · day 25 at 16:00 UTC · wind from 120° at 7 kt · visibility 6+ SM · broken layer at 3,500 ft · a few clouds at 4,000 ft · temp 32°C / dewpoint 23°C · altimeter 29.88" Hg

// Runway analysis · computed from current METAR wind

Wind 120° @ 7 kt

2 USABLE · 2 AVOID · 1 CAUTION

WIND

120°7 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

09★ HDG 090° H6 kt X3 kt RIGHT PRIMARY · 4,803'

06 HDG 060° H4 kt X6 kt RIGHT ⚠ HIGH XW · 86%

TAILWIND ENDS · AVOID 2 ends

24 HDG 240° T3 kt X6 kt LEFT —

27 HDG 270° T6 kt X3 kt LEFT —

Pattern altitude: 1,178 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 +17°C

2,300FT

+2,122 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV178 FT OAT+32°C ISA DELTA+17°C PRESSURE ALT214 FT

// Performance equivalent Operating here right now feels like operating at SBCJ (Carajás Airport, Parauapebas, elev 2,064 ft) on a standard ISA day.

// Aircraft performance impact SIGNIFICANT

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+23%

-16%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+16%

-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. 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 · 2 reported · highest to lowest

// Reported layers (highest → lowest)

FEW040

Few · base 4,000 ft AGL · ~1–2 oktas

BKN035

Broken · base 3,500 ft AGL · ~5–7 oktas

// Computed

CEILING3,500 ft AGL HIGHEST LAYER4,000 ft TOTAL COVERAGE~83% (mostly covered) FREEZING LEVEL16,340 ft VFR MARGIN+500 ft

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

08:59ZSUNRISE

15:00ZSOLAR NOON

21:02ZSUNSET

21:23ZCIVIL END

CURRENT16:18Z DAYLIGHT REMAINING4h 43m VFR NIGHT BEGINS21:23Z (5h 04m) DAY LENGTH12h 02m

Waxing Gibbous

ILLUMINATION94% MOONRISE19:01Z MOONSET07:04Z 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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