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// STALE Observation is 3h 12m old — METAR cadence is typically hourly. A fresh report may be on its way.

// Station · 3h 12m ago · STALE

HKEM

Embu Airport
CAT VFR
WIND CALM
VIS 6+ SM
CEILING Few/scattered only
T/Td 18°C / 13°C
ALTIM — inHg
ELEV 4,150 FT
0.5748°S / 37.4970°E
LOCATION · Embu, KE
N
WIND
000°0 kt
HKEM · 4,150 FT
© OSM · CartoDB

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

METRIC
NOW · 19Z
+6H
+12H
+18H
WIND
CALM
 
 
 
VIS
6+ SM
 
 
 
CEILING
 
 
 
LAYERS
SCT018
 
 
 
T / Td
18 / 13
 
 
 
ALTIM
 
 
 

// Interpretation

VFR with winds calm. Visibility 6+ SM and scattered at 1,800 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 HKEM 141900Z 00000KT 9999 SCT018 18/13

HKEM · day 14 at 19:00 UTC · winds calm · visibility 6+ SM · scattered layer at 1,800 ft · temp 18°C / dewpoint 13°C

// Runway analysis · computed from current METAR wind

Wind CALM
ALL USABLE · WINDS CALM
N
WIND
000°calm
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS 2 ends
14 HDG 140° CALM 5,246'
32 HDG 320° CALM 5,246'
Pattern altitude: 5,150 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

5,500FT
+1,350 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↗ +700 FT
6,600 5,550 4,500
24h AGO18h12h6hNOW
FIELD ELEV4,150 FT OAT+18°C ISA DELTA+11°C PRESSURE ALT4,150 FT
// Performance equivalent Operating here right now feels like operating at HKNW (Nairobi Wilson Airport, Nairobi, elev 5,536 ft) on a standard ISA day.
// Aircraft performance impact SIGNIFICANT
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+55%
-39%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+39%
-25%
Light jetCJ4, Phenom 300, M2
+22%
-17%

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 · 13,241 FT SCT018 HKEM ELEV · 4,150 FT
// Reported layers (highest → lowest)
SCT018
Scattered · base 1,800 ft AGL · ~3–4 oktas
// Computed
CEILING HIGHEST LAYER1,800 ft TOTAL COVERAGE~40% (mixed) FREEZING LEVEL13,241 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+2)

03:34ZSUNRISE
09:37ZSOLAR NOON
15:39ZSUNSET
16:01ZCIVIL END
CURRENT22:12Z DAYLIGHT REMAINING17h 27m VFR NIGHT BEGINS16:01Z (17h 49m) DAY LENGTH12h 05m
New Moon
ILLUMINATION0% MOONRISE03:40Z MOONSET15:46Z FULL MOON IN15 days

// Nearest reporting stations · 2 shown · 60 NM radius

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

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