// Station · 4h 6m ago · STALE

SPJI

Juanjui Airport

CAT VFR

WIND CALM

VIS 6+ SM

CEILING Few/scattered only

T/Td 36°C / 24°C

ALTIM 29.65 inHg

ELEV 1,148 FT

7.1691°S / 76.7286°W

LOCATION · Juanjuí, PE

WIND

000°0 kt

SPJI · 1,148 FT

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

METRIC

NOW · 21Z

+6H

+12H

+18H

WIND

CALM

VIS

6+ SM

CEILING

—

LAYERS

SCT020

T / Td

36 / 24

ALTIM

29.65"

// Interpretation

VFR with winds calm. Visibility 6+ SM and scattered 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 SPJI 122100Z 00000KT 9999 SCT020 36/24 Q1004 RMK TX37.2 PP000

SPJI · day 12 at 21:00 UTC · winds calm · visibility 6+ SM · scattered layer at 2,000 ft · temp 36°C / dewpoint 24°C · altimeter 29.65" 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

03 HDG 030° —CALM —— 6,562'

21 HDG 210° —CALM —— 6,562'

Pattern altitude: 2,148 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 +24°C

4,300FT

+3,152 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV1,148 FT OAT+36°C ISA DELTA+24°C PRESSURE ALT1,420 FT

// Performance equivalent Your aircraft will perform as if it's at a field 4,300 ft high on a standard ISA day — that's +3,152 ft above SPJI's actual elevation.

// Aircraft performance impact DANGEROUS

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+43%

-30%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+30%

-19%

Light jetCJ4, Phenom 300, M2

+17%

-13%

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)

SCT020

Scattered · base 2,000 ft AGL · ~3–4 oktas

// Computed

CEILING— HIGHEST LAYER2,000 ft TOTAL COVERAGE~40% (mixed) FREEZING LEVEL19,330 ft VFR MARGINunlimited

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

10:47ZSUNRISE

16:54ZSOLAR NOON

23:01ZSUNSET

23:22ZCIVIL END

CURRENT01:06Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS23:22Z (past) DAY LENGTH12h 14m

Waxing Crescent

ILLUMINATION3% MOONRISE12:08Z MOONSET00:22Z 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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