// Station · 25m ago

GCHI

El Hierro Airport

CAT VFR

WIND 020° / 11 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 24°C / 19°C

ALTIM 30.06 inHg

ELEV 103 FT

27.8148°N / 17.8871°W

LOCATION · El Hierro Island, ES

WIND

020°11 kt

GCHI · 103 FT

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

METRIC

NOW · 20Z

+6H

+12H

+18H

WIND

020°/11

VIS

6+ SM

CEILING

—

LAYERS

SCT031

T / Td

24 / 19

ALTIM

30.06"

// Interpretation

VFR with moderate winds at 020°/11 kt. Visibility 6+ SM and scattered at 3,100 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 GCHI 252000Z AUTO 02011KT 340V060 9999 SCT031 24/19 Q1018

GCHI · day 25 at 20:00 UTC · wind from 020° at 11 kt · visibility 6+ SM · scattered layer at 3,100 ft · temp 24°C / dewpoint 19°C · altimeter 30.06" Hg

// Runway analysis · computed from current METAR wind

Wind 020° @ 11 kt

1 USABLE · 1 AVOID · 1 CAUTION

WIND

020°11 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

34★ HDG 340° H8 kt X7 kt RIGHT PRIMARY · 4,101'

TAILWIND ENDS · AVOID 1 ends

16 HDG 160° T8 kt X7 kt LEFT —

Pattern altitude: 1,103 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 +9°C

1,000FT

+897 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV103 FT OAT+24°C ISA DELTA+9°C PRESSURE ALT-39 FT

// Performance equivalent Operating here right now feels like operating at GCGM (La Gomera Airport, Alajero, La Gomera Island, elev 716 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+10%

-7%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+7%

-5%

Light jetCJ4, Phenom 300, M2

+4%

-3%

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)

SCT031

Scattered · base 3,100 ft AGL · ~3–4 oktas

// Computed

CEILING— HIGHEST LAYER3,100 ft TOTAL COVERAGE~40% (mixed) FREEZING LEVEL12,224 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-1)

06:48ZSUNRISE

13:15ZSOLAR NOON

19:42ZSUNSET

20:06ZCIVIL END

CURRENT20:25Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS20:06Z (past) DAY LENGTH12h 53m

Waxing Gibbous

ILLUMINATION94% MOONRISE16:59Z MOONSET05:53Z 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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