// Station · 59m ago

CYGL

La Grande Rivière Airport

CAT VFR

WIND CALM

VIS 10+ SM

CEILING Few/scattered only

T/Td 17°C / 10°C

ALTIM 30.13 inHg

ELEV 639 FT

53.6253°N / 77.7042°W

LOCATION · La Grande Rivière, CA

WIND

000°0 kt

CYGL · 639 FT

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

METRIC

NOW · 13Z

+6H

+12H

+18H

WIND

CALM

VIS

10+ SM

CEILING

—

LAYERS

FEW240

T / Td

17 / 10

ALTIM

30.13"

// Interpretation

VFR with winds calm. Visibility better than 10 statute miles and a few at 24,000 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 111300Z 00000KT 15SM FEW240 17/10 A3013 RMK CI1 SLP210

CYGL · day 11 at 13:00 UTC · winds calm · visibility 10+ SM · a few clouds at 24,000 ft · temp 17°C / dewpoint 10°C · altimeter 30.13" Hg · sea-level pressure 1021.0 mb

// Runway analysis · computed from current METAR wind

Wind CALM

ALL USABLE · WINDS CALM

WIND

000°calm

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

13 HDG 130° —CALM —— 6,500'

31 HDG 310° —CALM —— 6,500'

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

800FT

+161 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↗ +600 FT

24h AGO18h12h6hNOW

FIELD ELEV639 FT OAT+17°C ISA DELTA+3°C PRESSURE ALT427 FT

// Performance equivalent Operating here right now feels like operating at CYHH (Nemiscau Airport, Nemiscau, elev 802 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.

// Cloud layers · 1 reported · highest to lowest

// Reported layers (highest → lowest)

FEW240

Few · base 24,000 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER24,000 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL9,225 ft VFR MARGINunlimited

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

08:56ZSUNRISE

17:17ZSOLAR NOON

01:38ZSUNSET

02:28ZCIVIL END

CURRENT13:59Z DAYLIGHT REMAINING11h 39m VFR NIGHT BEGINS02:28Z (12h 29m) DAY LENGTH16h 42m

Waning Crescent

ILLUMINATION11% MOONRISE06:19Z MOONSET23:01Z FULL MOON IN18 days

// Nearest reporting stations

No nearby reporting stations found within 200 NM of CYGL.

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

AIRSPACE

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