// Station · 25m ago

EGVN

RAF Brize Norton

CAT VFR

WIND 090° / 9 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 24°C / 8°C

ALTIM 29.85 inHg

ELEV 288 FT

51.7500°N / 1.5836°W

LOCATION · Carterton, Oxfordshire, GB

WIND

090°9 kt

EGVN · 288 FT

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

METRIC

NOW · 17Z

+6H

+12H

+18H

WIND

090°/9

VIS

6+ SM

CEILING

—

LAYERS

SCT100

T / Td

24 / 8

ALTIM

29.85"

// Interpretation

VFR with moderate winds at 090°/9 kt. Visibility 6+ SM and scattered at 10,000 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 EGVN 251750Z AUTO 09009KT 9999 SCT100/// 24/08 Q1011

EGVN · day 25 at 17:50 UTC · wind from 090° at 9 kt · visibility 6+ SM · scattered layer at 10,000 ft · temp 24°C / dewpoint 8°C · altimeter 29.85" Hg

// Runway analysis · computed from current METAR wind

Wind 090° @ 9 kt

1 USABLE · 1 AVOID

WIND

090°9 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

07★ HDG 070° H8 kt X3 kt RIGHT PRIMARY · 10,007'

TAILWIND ENDS · AVOID 1 ends

25 HDG 250° T8 kt X3 kt LEFT —

Pattern altitude: 1,288 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 +10°C

1,500FT

+1,212 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV288 FT OAT+24°C ISA DELTA+10°C PRESSURE ALT353 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 MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+15%

-11%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+11%

-7%

Light jetCJ4, Phenom 300, M2

+6%

-5%

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)

SCT100

Scattered · base 10,000 ft AGL · ~3–4 oktas

// Computed

CEILING— HIGHEST LAYER10,000 ft TOTAL COVERAGE~40% (mixed) FREEZING LEVEL12,409 ft VFR MARGINunlimited

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

05:08ZSUNRISE

12:10ZSOLAR NOON

19:11ZSUNSET

19:47ZCIVIL END

CURRENT18:15Z DAYLIGHT REMAINING56m VFR NIGHT BEGINS19:47Z (1h 32m) DAY LENGTH14h 03m

Waxing Gibbous

ILLUMINATION94% MOONRISE15:14Z MOONSET05:18Z 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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