// Station · 1h 6m ago · STALE

CYSN

Niagara District Airport

CAT VFR

WIND 250° / 7 kt

VIS 10+ SM

CEILING BKN at 18,000 ft

T/Td 19°C / 15°C

ALTIM 29.81 inHg

ELEV 321 FT

43.1916°N / 79.1717°W

LOCATION · Niagara-on-the-Lake, CA

WIND

250°7 kt

CYSN · 321 FT

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

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

250°/7

VIS

10+ SM

CEILING

BKN180

LAYERS

BKN180

T / Td

19 / 15

ALTIM

29.81"

// Interpretation

VFR — ceiling 18,000 ft. Light winds at 250°/7 kt, visibility better than 10 statute miles, 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 CYSN 130000Z 25007KT 15SM BKN180 19/15 A2981 RMK AC5 SLP097 DENSITY ALT 1100FT

CYSN · day 13 at 00:00 UTC · wind from 250° at 7 kt · visibility 10+ SM · broken layer at 18,000 ft · temp 19°C / dewpoint 15°C · altimeter 29.81" Hg · sea-level pressure 1009.7 mb

// Runway analysis · computed from current METAR wind

Wind 250° @ 7 kt

3 USABLE · 3 AVOID · 1 CAUTION

WIND

250°7 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 3 usable

24★ HDG 240° H7 kt X1 kt RIGHT PRIMARY · 5,000'

29 HDG 290° H5 kt X4 kt LEFT 2,000'

19 HDG 190° H4 kt X6 kt RIGHT ⚠ HIGH XW · 86%

TAILWIND ENDS · AVOID 3 ends

01 HDG 010° T4 kt X6 kt LEFT —

11 HDG 110° T5 kt X4 kt RIGHT —

06 HDG 060° T7 kt X1 kt LEFT —

Pattern altitude: 1,321 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 +5°C

1,000FT

+679 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV321 FT OAT+19°C ISA DELTA+5°C PRESSURE ALT428 FT

// Performance equivalent Operating here right now feels like operating at CYOS (Owen Sound / Billy Bishop Regional Airport, Owen Sound, elev 1,007 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+10%

-7%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+7%

-5%

Light jetCJ4, Phenom 300, M2

+4%

-3%

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 · 1 reported · highest to lowest

// Reported layers (highest → lowest)

BKN180

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

// Computed

CEILING18,000 ft AGL HIGHEST LAYER18,000 ft TOTAL COVERAGE~75% (mostly covered) FREEZING LEVEL9,917 ft VFR MARGIN+15,000 ft

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

11:27ZSUNRISE

17:04ZSOLAR NOON

22:40ZSUNSET

23:09ZCIVIL END

CURRENT01:06Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS23:09Z (past) DAY LENGTH11h 13m

Waxing Crescent

ILLUMINATION3% MOONRISE12:48Z MOONSET00:01Z FULL MOON IN13 days

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

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