// Station · 26m ago

CYYB

North Bay Jack Garland Airport

CAT IFR

WIND 060° / 7 kt

VIS 10+ SM

CEILING BKN at 600 ft

T/Td 7°C / 6°C

ALTIM 29.89 inHg

WX -RA

ELEV 1,215 FT

46.3636°N / 79.4228°W

LOCATION · North Bay, CA

WIND

060°7 kt

CYYB · 1,215 FT

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

METRIC

NOW · 02Z

+6H

+12H

+18H

WIND

060°/7

VIS

10+ SM

CEILING

BKN006

LAYERS

BKN006 OVC025

T / Td

7 / 6

ALTIM

29.89"

// Interpretation

IFR conditions — ceiling 600 ft. Light winds at 060°/7 kt, visibility better than 10 statute miles, broken at 600 ft, and overcast at 2,500 ft. Reported weather: light rain (-RA). Would deteriorate to LIFR below 500 ft ceiling or 1 SM, or improve to MVFR above 1,000 ft and 3 SM.

Loading TAF forecast narrative…

SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR CYYB 130200Z 06007KT 15SM -RA BKN006 OVC025 07/06 A2989 RMK SF5SC3 LAST STFD OBS/NEXT 131100 UTC SLP131

CYYB · day 13 at 02:00 UTC · wind from 060° at 7 kt · visibility 10+ SM · broken layer at 600 ft · overcast at 2,500 ft · temp 7°C / dewpoint 6°C · altimeter 29.89" Hg · weather: light rain (-RA) · sea-level pressure 1013.1 mb

// Runway analysis · computed from current METAR wind

Wind 060° @ 7 kt

3 USABLE · 3 AVOID · 2 CAUTION

WIND

060°7 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 3 usable

08★ HDG 080° H7 kt X2 kt LEFT PRIMARY · 10,000'

36 HDG 360° H4 kt X6 kt RIGHT ⚠ HIGH XW · 86%

13 HDG 130° H2 kt X7 kt LEFT ⚠ HIGH XW · 100%

TAILWIND ENDS · AVOID 3 ends

31 HDG 310° T2 kt X7 kt RIGHT —

18 HDG 180° T3 kt X6 kt LEFT —

26 HDG 260° T7 kt X2 kt RIGHT —

Pattern altitude: 2,215 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

-615 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV1,215 FT OAT+7°C ISA DELTA-6°C PRESSURE ALT1,242 FT

// Performance equivalent Operating here right now feels like operating at CYKP (Ogoki Post Airport, Ogoki Post, elev 594 ft) on a standard ISA day.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+6%

-4%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+4%

-3%

Light jetCJ4, Phenom 300, M2

+2%

-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)

OVC025

Overcast · base 2,500 ft AGL · 8 oktas

BKN006

Broken · base 600 ft AGL · ~5–7 oktas

// Computed

CEILING600 ft AGL HIGHEST LAYER2,500 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL4,750 ft VFR MARGIN-2,400 ft

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

11:31ZSUNRISE

17:05ZSOLAR NOON

22:38ZSUNSET

23:09ZCIVIL END

CURRENT02:26Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS23:09Z (past) DAY LENGTH11h 07m

Waxing Crescent

ILLUMINATION3% MOONRISE12:55Z MOONSET00:02Z FULL MOON IN13 days

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

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