// Station · 31m ago

LSGG

Geneva International Airport

CAT VFR

WIND VRB / 2 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 23°C / 18°C

ALTIM 29.94 inHg

ELEV 1,411 FT

46.2381°N / 6.1090°E

LOCATION · Geneva, CH

WIND

VRB2 kt

LSGG · 1,411 FT

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

METRIC

NOW · 19Z

+6H

+12H

+18H

WIND

VRB/2

VIS

6+ SM

CEILING

—

LAYERS

FEW098

T / Td

23 / 18

ALTIM

29.94"

// Interpretation

VFR with light winds at variable/2 kt. Visibility 6+ SM and a few at 9,800 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 LSGG 251950Z AUTO VRB02KT 9999 FEW098 23/18 Q1014 NOSIG

LSGG · day 25 at 19:50 UTC · wind variable at 2 kt · visibility 6+ SM · a few clouds at 9,800 ft · temp 23°C / dewpoint 18°C · altimeter 29.94" Hg

// Runway analysis · computed from current METAR wind

Wind VRB @ 2 kt

ALL USABLE · WINDS CALM

WIND

VRB2 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

04 HDG 040° —CALM —— 12,795'

22 HDG 220° —CALM —— 12,795'

Pattern altitude: 2,411 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 +11°C

2,700FT

+1,289 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV1,411 FT OAT+23°C ISA DELTA+11°C PRESSURE ALT1,388 FT

// Performance equivalent Your aircraft will perform as if it's at a field 2,700 ft high on a standard ISA day — that's +1,289 ft above LSGG's actual elevation.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+27%

-19%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+19%

-12%

Light jetCJ4, Phenom 300, M2

+11%

-8%

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)

FEW098

Few · base 9,800 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER9,800 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL13,027 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+0)

04:48ZSUNRISE

11:39ZSOLAR NOON

18:30ZSUNSET

19:02ZCIVIL END

CURRENT20:21Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS19:02Z (past) DAY LENGTH13h 42m

Waxing Gibbous

ILLUMINATION94% MOONRISE14:58Z MOONSET04:41Z 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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