// Station · 20m ago

EGKB

London Biggin Hill Airport

CAT VFR

WIND 300° / 8 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 22°C / 12°C

ALTIM 30.12 inHg

ELEV 598 FT

51.3308°N / 0.0325°E

LOCATION · London, GB

WIND

300°8 kt

EGKB · 598 FT

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

METRIC

NOW · 10Z

+6H

+12H

+18H

WIND

300°/8

VIS

6+ SM

CEILING

—

LAYERS

FEW035

T / Td

22 / 12

ALTIM

30.12"

// Interpretation

VFR with moderate winds at 300°/8 kt. Visibility 6+ SM and a few at 3,500 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 EGKB 101020Z 30008KT 270V010 9999 FEW035 22/12 Q1020

EGKB · day 10 at 10:20 UTC · wind from 300° at 8 kt · visibility 6+ SM · a few clouds at 3,500 ft · temp 22°C / dewpoint 12°C · altimeter 30.12" Hg

// Runway analysis · computed from current METAR wind

Wind 300° @ 8 kt

2 USABLE · 0 AVOID · 2 CAUTION

WIND

300°8 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

03★ HDG 030° H0 kt X8 kt LEFT PRIMARY · 5,925'

21 HDG 210° H0 kt X8 kt RIGHT ⚠ HIGH XW · 100%

Pattern altitude: 1,598 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

1,300FT

+702 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV598 FT OAT+22°C ISA DELTA+8°C PRESSURE ALT397 FT

// Performance equivalent Operating here right now feels like operating at EGOM (RAF Spadeadam, Spadeadam, elev 1,066 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+13%

-9%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+9%

-6%

Light jetCJ4, Phenom 300, M2

+5%

-4%

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)

FEW035

Few · base 3,500 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER3,500 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL11,709 ft VFR MARGINunlimited

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

04:38ZSUNRISE

12:06ZSOLAR NOON

19:34ZSUNSET

20:12ZCIVIL END

CURRENT10:40Z DAYLIGHT REMAINING8h 53m VFR NIGHT BEGINS20:12Z (9h 31m) DAY LENGTH14h 55m

Waning Crescent

ILLUMINATION9% MOONRISE02:18Z MOONSET17:13Z FULL MOON IN18 days

// Nearest reporting stations

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

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