// Station · 7h 8m ago · STALE · HARD STALE

HKNW

Nairobi Wilson Airport

CAT VFR

WIND 070° / 12 kt

VIS 6+ SM

CEILING CLR

T/Td 21°C / 9°C

ALTIM 30.30 inHg

ELEV 5,536 FT

1.3217°S / 36.8148°E

LOCATION · Nairobi, KE

WIND

070°12 kt

HKNW · 5,536 FT

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

METRIC

NOW · 18Z

+6H

+12H

+18H

WIND

070°/12

VIS

6+ SM

CEILING

CLR

LAYERS

—

T / Td

21 / 9

ALTIM

30.30"

// Interpretation

VFR with moderate winds at 070°/12 kt. Visibility 6+ SM and no reported cloud layers. 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 HKNW 121800Z 07012KT CAVOK 21/09 Q1026 NOSIG

HKNW · day 12 at 18:00 UTC · wind from 070° at 12 kt · visibility 6+ SM · temp 21°C / dewpoint 9°C · altimeter 30.30" Hg

// Runway analysis · computed from current METAR wind

Wind 070° @ 12 kt

2 USABLE · 2 AVOID · 1 CAUTION

WIND

070°12 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

07★ HDG 070° H12 kt X0 kt — PRIMARY · 4,798'

14 HDG 140° H4 kt X11 kt LEFT ⚠ HIGH XW · 92%

TAILWIND ENDS · AVOID 2 ends

32 HDG 320° T4 kt X11 kt RIGHT —

25 HDG 250° T12 kt X0 kt — —

Pattern altitude: 6,536 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 +16°C

7,100FT

+1,564 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV5,536 FT OAT+21°C ISA DELTA+16°C PRESSURE ALT5,158 FT

// Performance equivalent Operating here right now feels like operating at HKEL (Eldoret International Airport, Eldoret, elev 6,941 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+71%

-50%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+50%

-32%

Light jetCJ4, Phenom 300, M2

+28%

-21%

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 · clear · no layers reported

// Reported layers (highest → lowest)

CLR

No reported cloud layers — clear sky from surface to reporting ceiling.

// Computed

CEILING— HIGHEST LAYER— TOTAL COVERAGEclear FREEZING LEVEL16,142 ft VFR MARGINunlimited

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

03:16ZSUNRISE

09:20ZSOLAR NOON

15:24ZSUNSET

15:45ZCIVIL END

CURRENT01:08Z DAYLIGHT REMAINING14h 15m VFR NIGHT BEGINS15:45Z (14h 36m) DAY LENGTH12h 08m

Waxing Crescent

ILLUMINATION3% MOONRISE04:37Z MOONSET16:45Z 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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