// Station · 28m ago

CYSB

Sudbury Airport

CAT VFR

WIND 320° / 8 kt

VIS 10+ SM

CEILING BKN at 14,000 ft

T/Td 23°C / 13°C

ALTIM 29.77 inHg

ELEV 1,141 FT

46.6250°N / 80.7989°W

LOCATION · Sudbury, CA

WIND

320°8 kt

CYSB · 1,141 FT

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

METRIC

NOW · 23Z

+6H

+12H

+18H

WIND

320°/8

VIS

10+ SM

CEILING

BKN140

LAYERS

FEW040 BKN140

T / Td

23 / 13

ALTIM

29.77"

// Interpretation

VFR — ceiling 14,000 ft. Moderate winds at 320°/8 kt, visibility better than 10 statute miles, a few at 4,000 ft, and broken at 14,000 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 CYSB 122300Z 32008KT 20SM FEW040 BKN140 23/13 A2977 RMK SC1AC5 SLP084 DENSITY ALT 2500FT

CYSB · day 12 at 23:00 UTC · wind from 320° at 8 kt · visibility 10+ SM · a few clouds at 4,000 ft · broken layer at 14,000 ft · temp 23°C / dewpoint 13°C · altimeter 29.77" Hg · sea-level pressure 1008.4 mb

// Runway analysis · computed from current METAR wind

Wind 320° @ 8 kt

2 USABLE · 2 AVOID · 1 CAUTION

WIND

320°8 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

30★ HDG 300° H8 kt X3 kt RIGHT PRIMARY · 5,000'

04 HDG 040° H1 kt X8 kt LEFT ⚠ HIGH XW · 100%

TAILWIND ENDS · AVOID 2 ends

22 HDG 220° T1 kt X8 kt RIGHT —

12 HDG 120° T8 kt X3 kt LEFT —

Pattern altitude: 2,141 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 +11°C

2,600FT

+1,459 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV1,141 FT OAT+23°C ISA DELTA+11°C PRESSURE ALT1,289 FT

// Performance equivalent Operating here right now feels like operating at CYYN (Swift Current Airport, Swift Current, elev 2,680 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

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 · 2 reported · highest to lowest

// Reported layers (highest → lowest)

BKN140

Broken · base 14,000 ft AGL · ~5–7 oktas

FEW040

Few · base 4,000 ft AGL · ~1–2 oktas

// Computed

CEILING14,000 ft AGL HIGHEST LAYER14,000 ft TOTAL COVERAGE~83% (mostly covered) FREEZING LEVEL12,757 ft VFR MARGIN+11,000 ft

// Sun & Moon · times in Z · bar = local day (UTC-5)

10:18ZSUNRISE

17:29ZSOLAR NOON

00:40ZSUNSET

01:14ZCIVIL END

CURRENT23:28Z DAYLIGHT REMAINING1h 12m VFR NIGHT BEGINS01:14Z (1h 45m) DAY LENGTH14h 21m

New Moon

ILLUMINATION0% MOONRISE10:01Z MOONSET00:23Z FULL MOON IN15 days

// Nearest reporting stations

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

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