// Station · 1h 4m ago · STALE

CYHI

Ulukhaktok Holman Airport

CAT VFR

WIND 120° / 13 kt G19

VIS 10+ SM

CEILING BKN at 18,000 ft

T/Td 9°C / 5°C

ALTIM 29.90 inHg

ELEV 117 FT

70.7628°N / 117.8060°W

LOCATION · Ulukhaktok, CA

WIND

120°13 kt

CYHI · 117 FT

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

METRIC

NOW · 16Z

+6H

+12H

+18H

WIND

120°/13G19

VIS

10+ SM

CEILING

BKN180

LAYERS

FEW023 BKN180

T / Td

9 / 5

ALTIM

29.90"

// Interpretation

VFR — ceiling 18,000 ft. Brisk winds at 120°/13 kt, gusting 19, visibility better than 10 statute miles, a few at 2,300 ft, and broken at 18,000 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 CYHI 251600Z 12013G19KT 15SM FEW023 BKN180 09/05 A2990 RMK SC1AC7 SC TR CIG RAG SLP131

CYHI · day 25 at 16:00 UTC · wind from 120° at 13 kt, gusts to 19 kt · visibility 10+ SM · a few clouds at 2,300 ft · broken layer at 18,000 ft · temp 9°C / dewpoint 5°C · altimeter 29.90" Hg · sea-level pressure 1013.1 mb

// Runway analysis · computed from current METAR wind

Wind 120° @ 13 ktG19

1 USABLE · 1 AVOID · 1 CAUTION

WIND

120°13G19 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

06T★ HDG 060° H7 kt X11 kt RIGHT PRIMARY · 4,300'

TAILWIND ENDS · AVOID 1 ends

24T HDG 240° T6 kt X11 kt LEFT —

Pattern altitude: 1,117 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 -6°C

-600FT

-717 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV117 FT OAT+9°C ISA DELTA-6°C PRESSURE ALT135 FT

// Performance equivalent Your aircraft will perform as if it's at a field -600 ft high on a standard ISA day — that's -717 ft above CYHI'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)

BKN180

Broken · base 18,000 ft AGL · ~5–7 oktas

FEW023

Few · base 2,300 ft AGL · ~1–2 oktas

// Computed

CEILING18,000 ft AGL HIGHEST LAYER18,000 ft TOTAL COVERAGE~83% (mostly covered) FREEZING LEVEL4,662 ft VFR MARGIN+15,000 ft

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

11:31ZSUNRISE

19:54ZSOLAR NOON

04:18ZSUNSET

05:54ZCIVIL END

CURRENT17:04Z DAYLIGHT REMAINING11h 14m VFR NIGHT BEGINS05:54Z (12h 49m) DAY LENGTH16h 47m

Waxing Gibbous

ILLUMINATION94% MOONRISE21:35Z MOONSET14:22Z FULL MOON IN2 days

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

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