// Station · 1h 19m ago · STALE

HKNW

Nairobi Wilson Airport

CAT VFR

WIND 120° / 12 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 27°C / 7°C

ALTIM 30.21 inHg

ELEV 5,536 FT

1.3217°S / 36.8148°E

LOCATION · Nairobi, KE

WIND

120°12 kt

HKNW · 5,536 FT

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

METRIC

NOW · 15Z

+6H

+12H

+18H

WIND

120°/12

VIS

6+ SM

CEILING

—

LAYERS

FEW027

T / Td

27 / 7

ALTIM

30.21"

// Interpretation

VFR with moderate winds at 120°/12 kt. Visibility 6+ SM and a few at 2,700 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 HKNW 251500Z 12012KT 9999 FEW027 27/07 Q1023 NOSIG

HKNW · day 25 at 15:00 UTC · wind from 120° at 12 kt · visibility 6+ SM · a few clouds at 2,700 ft · temp 27°C / dewpoint 7°C · altimeter 30.21" Hg

// Runway analysis · computed from current METAR wind

Wind 120° @ 12 kt

2 USABLE · 2 AVOID · 1 CAUTION

WIND

120°12 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

14★ HDG 140° H11 kt X4 kt LEFT PRIMARY · 5,052'

07 HDG 070° H8 kt X9 kt RIGHT ⚠ HIGH XW · 75%

TAILWIND ENDS · AVOID 2 ends

25 HDG 250° T8 kt X9 kt LEFT —

32 HDG 320° T11 kt X4 kt RIGHT —

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 +22°C

7,900FT

+2,364 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV5,536 FT OAT+27°C ISA DELTA+22°C PRESSURE ALT5,247 FT

// Performance equivalent Your aircraft will perform as if it's at a field 7,900 ft high on a standard ISA day — that's +2,364 ft above HKNW's actual elevation.

// Aircraft performance impact SIGNIFICANT

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+79%

-55%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+55%

-36%

Light jetCJ4, Phenom 300, M2

+32%

-24%

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)

FEW027

Few · base 2,700 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER2,700 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL19,172 ft VFR MARGINunlimited

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

03:34ZSUNRISE

09:36ZSOLAR NOON

15:38ZSUNSET

15:59ZCIVIL END

CURRENT16:19Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS15:59Z (past) DAY LENGTH12h 04m

Waxing Gibbous

ILLUMINATION94% MOONRISE13:36Z MOONSET01:41Z 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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