// Station · 1h 24m ago · STALE

PTYA

Yap International Airport

CAT VFR

WIND VRB / 5 kt

VIS 10+ SM

CEILING BKN at 13,000 ft

T/Td 27.4°C / 25.7°C

ALTIM 29.89 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 · 14Z

+6H

+12H

+18H

WIND

VRB/5

VIS

10+ SM

CEILING

BKN130

LAYERS

SCT016 BKN130 OVC300

T / Td

27 / 26

ALTIM

29.89"

// Interpretation

VFR — ceiling 13,000 ft. Light winds at variable/5 kt, visibility better than 10 statute miles, scattered at 1,600 ft, broken at 13,000 ft, and overcast 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 251451Z VRB05KT 12SM SCT016 BKN130 OVC300 27/26 A2989 RMK SLP122 8/278 T02740257 402740260 58005

PTYA · day 25 at 14:51 UTC · wind variable at 5 kt · visibility 10+ SM · scattered layer at 1,600 ft · broken layer at 13,000 ft · overcast at 30,000 ft · temp 27°C / dewpoint 26°C · altimeter 29.89" Hg · sea-level pressure 1012.2 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 +13°C

1,600FT

+1,509 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV91 FT OAT+27°C ISA DELTA+13°C PRESSURE ALT118 FT

// Performance equivalent Your aircraft will perform as if it's at a field 1,600 ft high on a standard ISA day — that's +1,509 ft above PTYA's actual elevation.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+16%

-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 · 3 reported · highest to lowest

// Reported layers (highest → lowest)

OVC300

Overcast · base 30,000 ft AGL · 8 oktas

BKN130

Broken · base 13,000 ft AGL · ~5–7 oktas

SCT016

Scattered · base 1,600 ft AGL · ~3–4 oktas

// Computed

CEILING13,000 ft AGL HIGHEST LAYER30,000 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL13,929 ft VFR MARGIN+10,000 ft

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

20:40ZSUNRISE

02:51ZSOLAR NOON

09:01ZSUNSET

09:23ZCIVIL END

CURRENT16:15Z DAYLIGHT REMAINING16h 46m VFR NIGHT BEGINS09:23Z (17h 07m) DAY LENGTH12h 21m

Waxing Gibbous

ILLUMINATION94% MOONRISE06:42Z MOONSET19:04Z FULL MOON IN2 days

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

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