// Station · 6h 47m ago · STALE · HARD STALE

CYUB

Tuktoyaktuk / James Gruben Airport

CAT VFR

WIND 330° / 4 kt

VIS 10+ SM

CEILING BKN at 6,900 ft

T/Td 13°C / 11°C

ALTIM 30.20 inHg

ELEV 15 FT

69.4333°N / 133.0260°W

LOCATION · Tuktoyaktuk, CA

WIND

330°4 kt

CYUB · 15 FT

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

METRIC

NOW · 05Z

+6H

+12H

+18H

WIND

330°/4

VIS

10+ SM

CEILING

BKN069

LAYERS

FEW012 FEW046 BKN069 BKN120

T / Td

13 / 11

ALTIM

30.20"

// Interpretation

VFR — ceiling 6,900 ft. Light winds at 330°/4 kt, visibility better than 10 statute miles, a few at 1,200 ft, a few at 4,600 ft, broken at 6,900 ft, and broken at 12,000 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 CYUB 130500Z 33004KT 15SM FEW012 FEW046 BKN069 BKN120 13/11 A3020 RMK SC1SC1AC6AS1 SC TR SC TR LAST STFD OBS/NXT OBS 131300Z SLP229

CYUB · day 13 at 05:00 UTC · wind from 330° at 4 kt · visibility 10+ SM · a few clouds at 1,200 ft · a few clouds at 4,600 ft · broken layer at 6,900 ft · broken layer at 12,000 ft · temp 13°C / dewpoint 11°C · altimeter 30.20" Hg · sea-level pressure 1022.9 mb

// Runway analysis · computed from current METAR wind

Wind 330° @ 4 kt

ALL USABLE · WINDS CALM

WIND

330°4 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

10 HDG 100° —CALM —— 4,600'

28 HDG 280° —CALM —— 4,600'

Pattern altitude: 1,015 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 -3°C

-600FT

-615 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS ↗ +300 FT

24h AGO18h12h6hNOW

FIELD ELEV15 FT OAT+13°C ISA DELTA-3°C PRESSURE ALT-268 FT

// Performance equivalent Your aircraft will perform as if it's at a field -600 ft high on a standard ISA day — that's -615 ft above CYUB'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 · 4 reported · highest to lowest

// Reported layers (highest → lowest)

BKN120

Broken · base 12,000 ft AGL · ~5–7 oktas

BKN069

Broken · base 6,900 ft AGL · ~5–7 oktas

FEW046

Few · base 4,600 ft AGL · ~1–2 oktas

FEW012

Few · base 1,200 ft AGL · ~1–2 oktas

// Computed

CEILING6,900 ft AGL HIGHEST LAYER12,000 ft TOTAL COVERAGE~99% (overcast) FREEZING LEVEL6,581 ft VFR MARGIN+3,900 ft

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

11:48ZSUNRISE

20:58ZSOLAR NOON

06:08ZSUNSET

—CIVIL END

CURRENT11:47Z DAYLIGHT REMAINING18h 21m VFR NIGHT BEGINS— DAY LENGTH18h 19m

New Moon

ILLUMINATION0% MOONRISE11:56Z MOONSET06:16Z FULL MOON IN15 days

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

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