// Station · 23m ago

WATT

El Tari Airport

CAT MVFR

WIND 050° / 4 kt

VIS 5.0 SM

CEILING Few/scattered only

T/Td 34°C / 20°C

ALTIM 29.97 inHg

ELEV 335 FT

10.1716°S / 123.6710°E

LOCATION · Kupang, ID

WIND

050°4 kt

WATT · 335 FT

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

METRIC

NOW · 01Z

+6H

+12H

+18H

WIND

050°/4

VIS

5.0 SM

CEILING

—

LAYERS

FEW020

T / Td

34 / 20

ALTIM

29.97"

// Interpretation

MVFR — visibility 5.0 SM. Light winds at 050°/4 kt, visibility 5.0 SM, a few at 2,000 ft. Would drop to IFR below 1,000 ft ceiling or 3 SM visibility, or rise back to VFR above 3,000 ft and 5 SM.

Loading TAF forecast narrative…

SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR WATT 130130Z 05004KT 020V100 8000 FEW020 34/20 Q1015 NOSIG

WATT · day 13 at 01:30 UTC · wind from 050° at 4 kt · visibility 5.0 SM · a few clouds at 2,000 ft · temp 34°C / dewpoint 20°C · altimeter 29.97" Hg

// Runway analysis · computed from current METAR wind

Wind 050° @ 4 kt

ALL USABLE · WINDS CALM

WIND

050°4 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 4 ends

07 HDG 070° —CALM —— 8,202'

25 HDG 250° —CALM —— 8,202'

12 HDG 120° —CALM —— 4,175'

30 HDG 300° —CALM —— 4,175'

Pattern altitude: 1,335 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 +20°C

2,600FT

+2,265 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↗ +300 FT

24h AGO18h12h6hNOW

FIELD ELEV335 FT OAT+34°C ISA DELTA+20°C PRESSURE ALT282 FT

// Performance equivalent Operating here right now feels like operating at WAFB (Toraja Airport, Toraja, elev 2,884 ft) on a standard ISA day.

// Aircraft performance impact SIGNIFICANT

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+26%

-18%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+18%

-12%

Light jetCJ4, Phenom 300, M2

+10%

-8%

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)

FEW020

Few · base 2,000 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER2,000 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL17,507 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+8)

21:23ZSUNRISE

03:32ZSOLAR NOON

09:41ZSUNSET

10:02ZCIVIL END

CURRENT01:53Z DAYLIGHT REMAINING7h 48m VFR NIGHT BEGINS10:02Z (8h 09m) DAY LENGTH12h 17m

Waxing Crescent

ILLUMINATION3% MOONRISE22:46Z MOONSET11:04Z 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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