// Station · 3h 1m ago · STALE

CYSY

Sachs Harbour (David Nasogaluak Jr. Saaryuaq) Airport

CAT MVFR

WIND 340° / 15 kt

VIS 10+ SM

CEILING BKN at 1,000 ft

T/Td -3°C / -4°C

ALTIM 29.50 inHg

WX -FZDZ -SHSN

ELEV 282 FT

71.9939°N / 125.2430°W

LOCATION · Sachs Harbour, CA

WIND

340°15 kt

CYSY · 282 FT

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

METRIC

NOW · 23Z

+6H

+12H

+18H

WIND

340°/15

VIS

10+ SM

CEILING

BKN010

LAYERS

BKN010 OVC110

T / Td

-3 / -4

ALTIM

29.50"

// Interpretation

MVFR — ceiling 1,000 ft. Brisk winds at 340°/15 kt, visibility better than 10 statute miles, broken at 1,000 ft, and overcast at 11,000 ft. Reported weather: light freezing drizzle and light snow showers (-FZDZ -SHSN). Freezing conditions — supercooled droplets freeze on contact, building ice on surfaces and airframe; a known structural-icing hazard. 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 CYSY 122300Z 34015KT 10SM -FZDZ -SHSN BKN010 OVC110 M03/M04 A2950 RMK SC6AC2 LAST OBS/NEXT 131300Z SLP999

CYSY · day 12 at 23:00 UTC · wind from 340° at 15 kt · visibility 10+ SM · broken layer at 1,000 ft · overcast at 11,000 ft · temp -3°C / dewpoint -4°C · altimeter 29.50" Hg · weather: light freezing drizzle and light snow showers (-FZDZ -SHSN) · sea-level pressure 999.9 mb

// Runway analysis · computed from current METAR wind

Wind 340° @ 15 kt

1 USABLE · 1 AVOID · 1 CAUTION

WIND

340°15 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

26T★ HDG 260° H3 kt X15 kt RIGHT PRIMARY · 4,000'

TAILWIND ENDS · AVOID 1 ends

08T HDG 080° T3 kt X15 kt LEFT —

Pattern altitude: 1,282 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 -17°C

-1,300FT

-1,582 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV282 FT OAT-3°C ISA DELTA-17°C PRESSURE ALT699 FT

// Performance equivalent Your aircraft will perform as if it's at a field -1,300 ft high on a standard ISA day — that's -1,582 ft above CYSY'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)

OVC110

Overcast · base 11,000 ft AGL · 8 oktas

BKN010

Broken · base 1,000 ft AGL · ~5–7 oktas

// Computed

CEILING1,000 ft AGL HIGHEST LAYER11,000 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL282 ft VFR MARGIN-2,000 ft

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

15:31ZSUNRISE

20:08ZSOLAR NOON

00:45ZSUNSET

01:54ZCIVIL END

CURRENT02:01Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS01:54Z (past) DAY LENGTH9h 13m

Waxing Crescent

ILLUMINATION3% MOONRISE16:54Z MOONSET02:08Z FULL MOON IN13 days

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

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