// Station · 41m ago

EGYM

RAF Marham

CAT MVFR

WIND 210° / 11 kt

VIS 6+ SM

CEILING OVC at 1,400 ft

T/Td 16°C / 15°C

ALTIM 29.91 inHg

ELEV 75 FT

52.6484°N / 0.5507°E

LOCATION · King's Lynn, Norfolk, GB

WIND

210°11 kt

EGYM · 75 FT

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

METRIC

NOW · 01Z

+6H

+12H

+18H

WIND

210°/11

VIS

6+ SM

CEILING

OVC014

LAYERS

OVC014

T / Td

16 / 15

ALTIM

29.91"

// Interpretation

MVFR — ceiling 1,400 ft. Moderate winds at 210°/11 kt, visibility 6+ SM, overcast at 1,400 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 EGYM 130120Z AUTO 21011KT 9999 OVC014/// 16/15 Q1013

EGYM · day 13 at 01:20 UTC · wind from 210° at 11 kt · visibility 6+ SM · overcast at 1,400 ft · temp 16°C / dewpoint 15°C · altimeter 29.91" Hg

// Runway analysis · computed from current METAR wind

Wind 210° @ 11 kt

2 USABLE · 2 AVOID

WIND

210°11 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

19★ HDG 190° H10 kt X4 kt RIGHT PRIMARY · 6,116'

23 HDG 230° H10 kt X4 kt LEFT 9,131'

TAILWIND ENDS · AVOID 2 ends

01 HDG 010° T10 kt X4 kt LEFT —

05 HDG 050° T10 kt X4 kt RIGHT —

Pattern altitude: 1,075 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 +1°C

200FT

+125 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV75 FT OAT+16°C ISA DELTA+1°C PRESSURE ALT81 FT

// Performance equivalent Operating here right now feels like operating at EGKK (London Gatwick Airport, London, elev 202 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+2%

-1%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+1%

-1%

Light jetCJ4, Phenom 300, M2

+1%

-1%

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)

OVC014

Overcast · base 1,400 ft AGL · 8 oktas

// Computed

CEILING1,400 ft AGL HIGHEST LAYER1,400 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL8,156 ft VFR MARGIN-1,600 ft

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

06:20ZSUNRISE

11:45ZSOLAR NOON

17:09ZSUNSET

17:44ZCIVIL END

CURRENT02:01Z DAYLIGHT REMAINING15h 08m VFR NIGHT BEGINS17:44Z (15h 42m) DAY LENGTH10h 49m

Waxing Crescent

ILLUMINATION3% MOONRISE07:43Z MOONSET18:32Z FULL MOON IN13 days

// Nearest reporting stations

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

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