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// Station · 14m ago

GCHI

El Hierro Airport
CAT MVFR
WIND 350° / 9 kt
VIS 6+ SM
CEILING BKN at 3,000 ft
T/Td 23°C / 18°C
ALTIM 30.00 inHg
ELEV 103 FT
27.8148°N / 17.8871°W
LOCATION · El Hierro Island, ES
N
WIND
350°9 kt
GCHI · 103 FT
© OSM · CartoDB

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

METRIC
NOW · 18Z
+6H
+12H
+18H
WIND
350°/9
 
 
 
VIS
6+ SM
 
 
 
CEILING
BKN030
 
 
 
LAYERS
BKN030
 
 
 
T / Td
23 / 18
 
 
 
ALTIM
30.00"
 
 
 

// Interpretation

MVFR — ceiling 3,000 ft. Moderate winds at 350°/9 kt, visibility 6+ SM, broken at 3,000 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 111800Z 35009KT 320V020 9999 BKN030 23/18 Q1016

GCHI · day 11 at 18:00 UTC · wind from 350° at 9 kt · visibility 6+ SM · broken layer at 3,000 ft · temp 23°C / dewpoint 18°C · altimeter 30.00" Hg

// Runway analysis · computed from current METAR wind

Wind 350° @ 9 kt
1 USABLE · 1 AVOID
N
WIND
350°9 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
34 HDG 340° H9 kt X2 kt RIGHT PRIMARY · 4,101'
TAILWIND ENDS · AVOID 1 ends
16 HDG 160° T9 kt X2 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 +8°C

1,000FT
+897 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -200 FT
1,300 1,000 700
24h AGO18h12h6hNOW
FIELD ELEV103 FT OAT+23°C ISA DELTA+8°C PRESSURE ALT21 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.

// Cloud layers · 1 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 11,719 FT BKN030 · CEILING GCHI ELEV · 103 FT
// Reported layers (highest → lowest)
BKN030
Broken · base 3,000 ft AGL · ~5–7 oktas
// Computed
CEILING3,000 ft AGL HIGHEST LAYER3,000 ft TOTAL COVERAGE~75% (mostly covered) FREEZING LEVEL11,719 ft VFR MARGIN+0 ft

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

06:24ZSUNRISE
13:18ZSOLAR NOON
20:11ZSUNSET
20:38ZCIVIL END
CURRENT18:14Z DAYLIGHT REMAINING1h 57m VFR NIGHT BEGINS20:38Z (2h 23m) DAY LENGTH13h 47m
Waning Crescent
ILLUMINATION10% MOONRISE03:56Z MOONSET17:43Z FULL MOON IN18 days

// Nearest reporting stations · 5 shown · 150 NM (sparse area)

// Area map · 140 NM radius · CartoDB Dark Matter + aeronautical overlay

© OpenStreetMap · CartoDB · OpenAIP
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