// Station · 35m ago

CYOW

Ottawa Macdonald-Cartier International Airport

CAT VFR

WIND 170° / 5 kt

VIS 10+ SM

CEILING BKN at 11,000 ft

T/Td 18°C / 17°C

ALTIM 29.94 inHg

ELEV 374 FT

45.3225°N / 75.6692°W

LOCATION · Ottawa, CA

WIND

170°5 kt

CYOW · 374 FT

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

METRIC

NOW · 10Z

+6H

+12H

+18H

WIND

170°/5

VIS

10+ SM

CEILING

BKN110

LAYERS

BKN110 BKN170

T / Td

18 / 17

ALTIM

29.94"

// Interpretation

VFR — ceiling 11,000 ft. Light winds at 170°/5 kt, visibility better than 10 statute miles, broken at 11,000 ft, and broken at 17,000 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 CYOW 101000Z 17005KT 15SM BKN110 BKN170 18/17 A2994 RMK AC6AC1 SLP140 DENSITY ALT 900FT

CYOW · day 10 at 10:00 UTC · wind from 170° at 5 kt · visibility 10+ SM · broken layer at 11,000 ft · broken layer at 17,000 ft · temp 18°C / dewpoint 17°C · altimeter 29.94" Hg · sea-level pressure 1014.0 mb

// Runway analysis · computed from current METAR wind

Wind 170° @ 5 kt

3 USABLE · 3 AVOID

WIND

170°5 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 3 usable

14★ HDG 140° H4 kt X2 kt RIGHT PRIMARY · 10,000'

22 HDG 220° H3 kt X4 kt LEFT 3,300'

25 HDG 250° H1 kt X5 kt LEFT 8,000'

TAILWIND ENDS · AVOID 3 ends

07 HDG 070° T1 kt X5 kt RIGHT —

04 HDG 040° T3 kt X4 kt RIGHT —

32 HDG 320° T4 kt X2 kt LEFT —

Pattern altitude: 1,374 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 +4°C

800FT

+426 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV374 FT OAT+18°C ISA DELTA+4°C PRESSURE ALT351 FT

// Performance equivalent Operating here right now feels like operating at CNE3 (Bearskin Lake Airport, Bearskin Lake, elev 800 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+8%

-6%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+6%

-4%

Light jetCJ4, Phenom 300, M2

+3%

-2%

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)

BKN170

Broken · base 17,000 ft AGL · ~5–7 oktas

BKN110

Broken · base 11,000 ft AGL · ~5–7 oktas

// Computed

CEILING11,000 ft AGL HIGHEST LAYER17,000 ft TOTAL COVERAGE~83% (mostly covered) FREEZING LEVEL9,465 ft VFR MARGIN+8,000 ft

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

09:58ZSUNRISE

17:09ZSOLAR NOON

00:19ZSUNSET

00:52ZCIVIL END

CURRENT10:35Z DAYLIGHT REMAINING13h 44m VFR NIGHT BEGINS00:52Z (14h 17m) DAY LENGTH14h 21m

Waning Crescent

ILLUMINATION9% MOONRISE07:38Z MOONSET21:59Z FULL MOON IN18 days

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

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