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// Station · 22m ago

EGYM

RAF Marham
CAT MVFR
WIND 050° / 9 kt
VIS 6+ SM
CEILING OVC at 1,400 ft
T/Td 21°C / 16°C
ALTIM 30.21 inHg
ELEV 75 FT
52.6484°N / 0.5507°E
LOCATION · King's Lynn, Norfolk, GB
N
WIND
050°9 kt
EGYM · 75 FT
© OSM · CartoDB

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

METRIC
NOW · 12Z
+6H
+12H
+18H
WIND
050°/9
 
 
 
VIS
6+ SM
 
 
 
CEILING
OVC014
 
 
 
LAYERS
OVC014
 
 
 
T / Td
21 / 16
 
 
 
ALTIM
30.21"
 
 
 

// Interpretation

MVFR — ceiling 1,400 ft. Moderate winds at 050°/9 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 111250Z AUTO 05009KT 9999 OVC014/// 21/16 Q1023

EGYM · day 11 at 12:50 UTC · wind from 050° at 9 kt · visibility 6+ SM · overcast at 1,400 ft · temp 21°C / dewpoint 16°C · altimeter 30.21" Hg

// Runway analysis · computed from current METAR wind

Wind 050° @ 9 kt
2 USABLE · 2 AVOID · 1 CAUTION
N
WIND
050°9 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 2 usable
05 HDG 050° H9 kt X0 kt PRIMARY · 9,131'
01 HDG 010° H7 kt X6 kt RIGHT ⚠ HIGH XW · 67%
TAILWIND ENDS · AVOID 2 ends
19 HDG 190° T7 kt X6 kt LEFT
23 HDG 230° T9 kt X0 kt
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 +6°C

500FT
+425 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -1,300 FT
2,200 750 -700
24h AGO18h12h6hNOW
FIELD ELEV75 FT OAT+21°C ISA DELTA+6°C PRESSURE ALT-214 FT
// Performance equivalent Operating here right now feels like operating at EGGW (London Luton Airport, Luton, Luton, elev 526 ft) on a standard ISA day.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+5%
-4%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+4%
-2%
Light jetCJ4, Phenom 300, M2
+2%
-2%

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 · 10,681 FT OVC014 · CEILING EGYM ELEV · 75 FT
// 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 LEVEL10,681 ft VFR MARGIN-1,600 ft

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

03:48ZSUNRISE
12:04ZSOLAR NOON
20:20ZSUNSET
21:08ZCIVIL END
CURRENT13:12Z DAYLIGHT REMAINING7h 07m VFR NIGHT BEGINS21:08Z (7h 55m) DAY LENGTH16h 31m
Waning Crescent
ILLUMINATION11% MOONRISE01:10Z MOONSET17:42Z FULL MOON IN18 days

// Nearest reporting stations · 5 shown · 60 NM radius

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

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