// Station · 9m ago

PADU

Tom Madsen (Dutch Harbor) Airport

CAT VFR

WIND CALM

VIS 10+ SM

CEILING BKN at 4,200 ft

T/Td 7.2°C / 2.2°C

ALTIM 29.73 inHg

ELEV 22 FT

53.8988°N / 166.5450°W

LOCATION · Unalaska, US

WIND

000°0 kt

PADU · 22 FT

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

METRIC

NOW · 01Z

+6H

+12H

+18H

WIND

CALM

VIS

10+ SM

CEILING

BKN042

LAYERS

SCT029 BKN042

T / Td

7 / 2

ALTIM

29.73"

// Interpretation

VFR — ceiling 4,200 ft. Winds calm, visibility better than 10 statute miles, scattered at 2,900 ft, and broken at 4,200 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 PADU 130156Z 00000KT 10SM SCT029 BKN042 07/02 A2973 RMK AO2 RAE44 SLP068 P0000 T00720022

PADU · day 13 at 01:56 UTC · winds calm · visibility 10+ SM · scattered layer at 2,900 ft · broken layer at 4,200 ft · temp 7°C / dewpoint 2°C · altimeter 29.73" Hg · automated station w/ precipitation discriminator · sea-level pressure 1006.8 mb

// Runway analysis · computed from current METAR wind

Wind CALM

ALL USABLE · WINDS CALM

WIND

000°calm

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

13 HDG 130° —CALM —— 4,500'

31 HDG 310° —CALM —— 4,500'

Pattern altitude: 1,022 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 -7°C

-700FT

-722 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV22 FT OAT+7°C ISA DELTA-7°C PRESSURE ALT208 FT

// Performance equivalent Your aircraft will perform as if it's at a field -700 ft high on a standard ISA day — that's -722 ft above PADU's actual elevation.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+0%

-0%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+0%

-0%

Light jetCJ4, Phenom 300, M2

+0%

-0%

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 · 2 reported · highest to lowest

// Reported layers (highest → lowest)

BKN042

Broken · base 4,200 ft AGL · ~5–7 oktas

SCT029

Scattered · base 2,900 ft AGL · ~3–4 oktas

// Computed

CEILING4,200 ft AGL HIGHEST LAYER4,200 ft TOTAL COVERAGE~83% (mostly covered) FREEZING LEVEL3,658 ft VFR MARGIN+1,200 ft

// Sun & Moon · times in Z · bar = local day (UTC-11)

17:29ZSUNRISE

22:53ZSOLAR NOON

04:17ZSUNSET

04:53ZCIVIL END

CURRENT02:05Z DAYLIGHT REMAINING2h 12m VFR NIGHT BEGINS04:53Z (2h 47m) DAY LENGTH10h 48m

Waxing Crescent

ILLUMINATION3% MOONRISE18:52Z MOONSET05:40Z FULL MOON IN13 days

// Nearest reporting stations

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

AIRSPACE

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