// Station · 1h 8m ago · STALE

PTYA

Yap International Airport

CAT VFR

WIND VRB / 5 kt

VIS 10+ SM

CEILING BKN at 30,000 ft

T/Td 29.3°C / 26.7°C

ALTIM 29.93 inHg

ELEV 91 FT

9.4989°N / 138.0830°E

LOCATION · Yap Island, FM

WIND

VRB5 kt

PTYA · 91 FT

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

METRIC

NOW · 23Z

+6H

+12H

+18H

WIND

VRB/5

VIS

10+ SM

CEILING

BKN300

LAYERS

FEW016 SCT130 BKN300

T / Td

29 / 27

ALTIM

29.93"

// Interpretation

VFR — ceiling 30,000 ft. Light winds at variable/5 kt, visibility better than 10 statute miles, a few at 1,600 ft, scattered at 13,000 ft, and broken at 30,000 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 PTYA 122356Z VRB05KT 12SM FEW016 SCT130 BKN300 29/27 A2993 RMK SLP137 60051 8/171 T02930267 10293 20256 52014

PTYA · day 12 at 23:56 UTC · wind variable at 5 kt · visibility 10+ SM · a few clouds at 1,600 ft · scattered layer at 13,000 ft · broken layer at 30,000 ft · temp 29°C / dewpoint 27°C · altimeter 29.93" Hg · sea-level pressure 1013.7 mb

// Runway analysis · computed from current METAR wind

Wind VRB @ 5 kt

ALL USABLE · WINDS CALM

WIND

VRB5 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

07 HDG 070° —CALM —— 6,000'

25 HDG 250° —CALM —— 6,000'

Pattern altitude: 1,091 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 +14°C

1,800FT

+1,709 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV91 FT OAT+29°C ISA DELTA+14°C PRESSURE ALT79 FT

// Performance equivalent Your aircraft will perform as if it's at a field 1,800 ft high on a standard ISA day — that's +1,709 ft above PTYA's actual elevation.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+18%

-13%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+13%

-8%

Light jetCJ4, Phenom 300, M2

+7%

-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 · 3 reported · highest to lowest

// Reported layers (highest → lowest)

BKN300

Broken · base 30,000 ft AGL · ~5–7 oktas

SCT130

Scattered · base 13,000 ft AGL · ~3–4 oktas

FEW016

Few · base 1,600 ft AGL · ~1–2 oktas

// Computed

CEILING30,000 ft AGL HIGHEST LAYER30,000 ft TOTAL COVERAGE~91% (overcast) FREEZING LEVEL14,889 ft VFR MARGIN+27,000 ft

// Sun & Moon · times in Z · bar = local day (UTC+9)

20:36ZSUNRISE

02:35ZSOLAR NOON

08:33ZSUNSET

08:54ZCIVIL END

CURRENT01:04Z DAYLIGHT REMAINING7h 29m VFR NIGHT BEGINS08:54Z (7h 50m) DAY LENGTH11h 56m

Waxing Crescent

ILLUMINATION3% MOONRISE21:57Z MOONSET09:54Z FULL MOON IN13 days

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

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