// Station · 34m ago

GCHI

El Hierro Airport

CAT MVFR

WIND 350° / 21 kt

VIS 6+ SM

CEILING BKN at 1,600 ft

T/Td 24°C / 20°C

ALTIM 30.09 inHg

ELEV 103 FT

27.8148°N / 17.8871°W

LOCATION · El Hierro Island, ES

WIND

350°21 kt

GCHI · 103 FT

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

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

350°/21

VIS

6+ SM

CEILING

BKN016

LAYERS

BKN016

T / Td

24 / 20

ALTIM

30.09"

// Interpretation

MVFR — ceiling 1,600 ft. Strong winds at 350°/21 kt, visibility 6+ SM, broken at 1,600 ft. Would drop to IFR below 1,000 ft ceiling or 3 SM visibility, or rise back to VFR above 3,000 ft and 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 130000Z AUTO 35021KT 9999 BKN016 24/20 Q1019

GCHI · day 13 at 00:00 UTC · wind from 350° at 21 kt · visibility 6+ SM · broken layer at 1,600 ft · temp 24°C / dewpoint 20°C · altimeter 30.09" Hg

// Runway analysis · computed from current METAR wind

Wind 350° @ 21 kt

1 USABLE · 1 AVOID

WIND

350°21 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

34★ HDG 340° H21 kt X4 kt RIGHT PRIMARY · 4,101'

TAILWIND ENDS · AVOID 1 ends

16 HDG 160° T21 kt X4 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-68 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)

BKN016

Broken · base 1,600 ft AGL · ~5–7 oktas

// Computed

CEILING1,600 ft AGL HIGHEST LAYER1,600 ft TOTAL COVERAGE~75% (mostly covered) FREEZING LEVEL12,224 ft VFR MARGIN-1,400 ft

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

06:41ZSUNRISE

13:18ZSOLAR NOON

19:54ZSUNSET

20:19ZCIVIL END

CURRENT00:34Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS20:19Z (past) DAY LENGTH13h 12m

New Moon

ILLUMINATION0% MOONRISE06:26Z MOONSET19:39Z FULL MOON IN15 days

// Nearest reporting stations

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

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