// Station · 11m ago

SLLP

El Alto International Airport

CAT VFR

WIND 270° / 12 kt G24

VIS 6+ SM

CEILING Few/scattered only

T/Td 11°C / -8°C

ALTIM 30.62 inHg

ELEV 13,355 FT

16.5103°S / 68.1894°W

LOCATION · La Paz / El Alto, BO

WIND

270°12 kt

SLLP · 13,355 FT

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

METRIC

NOW · 18Z

+6H

+12H

+18H

WIND

270°/12G24

VIS

6+ SM

CEILING

—

LAYERS

FEW020

T / Td

11 / -8

ALTIM

30.62"

// Interpretation

VFR with moderate winds at 270°/12 kt, gusting 24. 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 SLLP 251800Z 27012G24KT 9999 FEW020 11/M08 Q1037 NOSIG

SLLP · day 25 at 18:00 UTC · wind from 270° at 12 kt, gusts to 24 kt · visibility 6+ SM · a few clouds at 2,000 ft · temp 11°C / dewpoint -8°C · altimeter 30.62" Hg

// Runway analysis · computed from current METAR wind

Wind 270° @ 12 ktG24

2 USABLE · 2 AVOID

WIND

270°12G24 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

28★ HDG 280° H12 kt X2 kt LEFT PRIMARY · 13,123'

28R HDG 280° H12 kt X2 kt LEFT 6,725'

TAILWIND ENDS · AVOID 2 ends

10 HDG 100° T12 kt X2 kt RIGHT —

10L HDG 100° T12 kt X2 kt RIGHT —

Pattern altitude: 14,355 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 +21°C

15,200FT

+1,845 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV13,355 FT OAT+11°C ISA DELTA+21°C PRESSURE ALT12,652 FT

// Performance equivalent Your aircraft will perform as if it's at a field 15,200 ft high on a standard ISA day — that's +1,845 ft above SLLP's actual elevation.

// Aircraft performance impact DANGEROUS

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+152%

-106%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+106%

-68%

Light jetCJ4, Phenom 300, M2

+61%

-46%

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 LEVEL18,911 ft VFR MARGINunlimited

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

10:45ZSUNRISE

16:36ZSOLAR NOON

22:27ZSUNSET

22:48ZCIVIL END

CURRENT18:11Z DAYLIGHT REMAINING4h 15m VFR NIGHT BEGINS22:48Z (4h 37m) DAY LENGTH11h 41m

Waxing Gibbous

ILLUMINATION94% MOONRISE20:52Z MOONSET08:33Z 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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