// Station · 16m ago

CYGL

La Grande Rivière Airport

CAT VFR

WIND 240° / 8 kt

VIS 10+ SM

CEILING BKN at 10,000 ft

T/Td 17°C / 10°C

ALTIM 29.92 inHg

ELEV 639 FT

53.6253°N / 77.7042°W

LOCATION · La Grande Rivière, CA

WIND

240°8 kt

CYGL · 639 FT

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

METRIC

NOW · 16Z

+6H

+12H

+18H

WIND

240°/8

VIS

10+ SM

CEILING

BKN100

LAYERS

FEW078 BKN100

T / Td

17 / 10

ALTIM

29.92"

// Interpretation

VFR — ceiling 10,000 ft. Moderate winds at 240°/8 kt, visibility better than 10 statute miles, a few at 7,800 ft, and broken at 10,000 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 CYGL 251600Z 24008KT 15SM FEW078 BKN100 17/10 A2992 RMK AC2AC4 SLP142 DENSITY ALT 1100FT

CYGL · day 25 at 16:00 UTC · wind from 240° at 8 kt · visibility 10+ SM · a few clouds at 7,800 ft · broken layer at 10,000 ft · temp 17°C / dewpoint 10°C · altimeter 29.92" Hg · sea-level pressure 1014.2 mb

// Runway analysis · computed from current METAR wind

Wind 240° @ 8 kt

1 USABLE · 1 AVOID · 1 CAUTION

WIND

240°8 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

31★ HDG 310° H3 kt X8 kt LEFT PRIMARY · 6,500'

TAILWIND ENDS · AVOID 1 ends

13 HDG 130° T3 kt X8 kt RIGHT —

Pattern altitude: 1,639 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 +3°C

1,000FT

+361 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV639 FT OAT+17°C ISA DELTA+3°C PRESSURE ALT636 FT

// Performance equivalent Operating here right now feels like operating at CYAH (La Grande-4 Airport, La Grande-4, elev 1,005 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 · 2 reported · highest to lowest

// Reported layers (highest → lowest)

BKN100

Broken · base 10,000 ft AGL · ~5–7 oktas

FEW078

Few · base 7,800 ft AGL · ~1–2 oktas

// Computed

CEILING10,000 ft AGL HIGHEST LAYER10,000 ft TOTAL COVERAGE~83% (mostly covered) FREEZING LEVEL9,225 ft VFR MARGIN+7,000 ft

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

10:08ZSUNRISE

17:14ZSOLAR NOON

00:20ZSUNSET

00:58ZCIVIL END

CURRENT16:16Z DAYLIGHT REMAINING8h 03m VFR NIGHT BEGINS00:58Z (8h 41m) DAY LENGTH14h 11m

Waxing Gibbous

ILLUMINATION94% MOONRISE20:11Z MOONSET10:22Z FULL MOON IN2 days

// Nearest reporting stations

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

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