// Station · 19m ago

KHPN

Westchester County Airport

CAT VFR

WIND 310° / 10 kt

VIS 10+ SM

CEILING Few/scattered only

T/Td 23.9°C / 14.4°C

ALTIM 29.99 inHg

ELEV 439 FT

41.0670°N / 73.7076°W

LOCATION · White Plains, US

WIND

310°10 kt

KHPN · 439 FT

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

METRIC

NOW · 17Z

+6H

+12H

+18H

WIND

310°/10

VIS

10+ SM

CEILING

—

LAYERS

FEW036

T / Td

24 / 14

ALTIM

29.99"

// Interpretation

VFR with moderate winds at 310°/10 kt. Visibility better than 10 statute miles and a few at 3,600 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 KHPN 251756Z 31010KT 10SM FEW036 24/14 A2999 RMK AO2 SLP150 T02390144 10239 20178 56008

KHPN · day 25 at 17:56 UTC · wind from 310° at 10 kt · visibility 10+ SM · a few clouds at 3,600 ft · temp 24°C / dewpoint 14°C · altimeter 29.99" Hg · automated station w/ precipitation discriminator · sea-level pressure 1015.0 mb

// Runway analysis · computed from current METAR wind

Wind 310° @ 10 kt

2 USABLE · 2 AVOID

WIND

310°10 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

29★ HDG 290° H9 kt X3 kt RIGHT PRIMARY · 4,451'

34 HDG 340° H9 kt X5 kt LEFT 6,549'

TAILWIND ENDS · AVOID 2 ends

11 HDG 110° T9 kt X3 kt LEFT —

16 HDG 160° T9 kt X5 kt RIGHT —

Pattern altitude: 1,439 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 +10°C

1,500FT

+1,061 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV439 FT OAT+24°C ISA DELTA+10°C PRESSURE ALT365 FT

// Performance equivalent Operating here right now feels like operating at K01G (Perry-Warsaw Airport, Perry, elev 1,559 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+15%

-11%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+11%

-7%

Light jetCJ4, Phenom 300, M2

+6%

-5%

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)

FEW036

Few · base 3,600 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER3,600 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL12,510 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-5)

10:15ZSUNRISE

16:58ZSOLAR NOON

23:41ZSUNSET

00:09ZCIVIL END

CURRENT18:15Z DAYLIGHT REMAINING5h 25m VFR NIGHT BEGINS00:09Z (5h 54m) DAY LENGTH13h 25m

Waxing Gibbous

ILLUMINATION94% MOONRISE20:22Z MOONSET09:47Z 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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