// Station · 14h 52m ago · STALE · HARD STALE

CYMU

Umiujaq Airport

CAT VFR

WIND 060° / 11 kt

VIS 10+ SM

CEILING BKN at 11,000 ft

T/Td 12°C / 8°C

ALTIM 29.73 inHg

ELEV 250 FT

56.5361°N / 76.5183°W

LOCATION · Umiujaq, CA

WIND

060°11 kt

CYMU · 250 FT

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

METRIC

NOW · 21Z

+6H

+12H

+18H

WIND

060°/11

VIS

10+ SM

CEILING

BKN110

LAYERS

SCT043 BKN110 BKN230

T / Td

12 / 8

ALTIM

29.73"

// Interpretation

VFR — ceiling 11,000 ft. Moderate winds at 060°/11 kt, visibility better than 10 statute miles, scattered at 4,300 ft, broken at 11,000 ft, and broken at 23,000 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 CYMU 262100Z 06011KT 15SM SCT043 BKN110 BKN230 12/08 A2973 RMK SC3AS3CI1 LST STFD /NXT OBS 271200Z SLP072

CYMU · day 26 at 21:00 UTC · wind from 060° at 11 kt · visibility 10+ SM · scattered layer at 4,300 ft · broken layer at 11,000 ft · broken layer at 23,000 ft · temp 12°C / dewpoint 8°C · altimeter 29.73" Hg · sea-level pressure 1007.2 mb

// Runway analysis · computed from current METAR wind

Wind 060° @ 11 kt

1 USABLE · 1 AVOID · 1 CAUTION

WIND

060°11 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

02★ HDG 020° H8 kt X7 kt RIGHT PRIMARY · 3,500'

TAILWIND ENDS · AVOID 1 ends

20 HDG 200° T8 kt X7 kt LEFT —

Pattern altitude: 1,250 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 -2°C

200FT

-50 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS ↗ +700 FT

24h AGO18h12h6hNOW

FIELD ELEV250 FT OAT+12°C ISA DELTA-2°C PRESSURE ALT436 FT

// Performance equivalent Operating here right now feels like operating at CYRQ (Trois-Rivières Airport, Trois-Rivières, elev 199 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+2%

-1%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+1%

-1%

Light jetCJ4, Phenom 300, M2

+1%

-1%

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 · 3 reported · highest to lowest

// Reported layers (highest → lowest)

BKN230

Broken · base 23,000 ft AGL · ~5–7 oktas

BKN110

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

SCT043

Scattered · base 4,300 ft AGL · ~3–4 oktas

// Computed

CEILING11,000 ft AGL HIGHEST LAYER23,000 ft TOTAL COVERAGE~91% (overcast) FREEZING LEVEL6,311 ft VFR MARGIN+8,000 ft

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

08:31ZSUNRISE

17:04ZSOLAR NOON

01:37ZSUNSET

02:34ZCIVIL END

CURRENT11:52Z DAYLIGHT REMAINING13h 44m VFR NIGHT BEGINS02:34Z (14h 41m) DAY LENGTH17h 05m

Waxing Gibbous

ILLUMINATION83% MOONRISE17:16Z MOONSET10:22Z FULL MOON IN4 days

// Nearest reporting stations · 4 shown · 200 NM (very sparse)

CYGW

LIFR

Kuujjuarapik Airport · Kuujjuarapik

WIND: 270° / 5 kt
VIS: 0.13 SM
CEILING: —
DIST: 86 NM SW
AGE: 17m ago

CYPH

VFR → MVFR 21Z

Inukjuak Airport · Inukjuak

WIND: 040° / 8 kt
VIS: 9.0 SM
CEILING: CLR
DIST: 127 NM NW
AGE: 52m ago

CYGL

LIFR → IFR 14Z

La Grande Rivière Airport · La Grande Rivière

WIND: 280° / 10 kt
VIS: 0.50 SM
CEILING: OVC001
DIST: 179 NM S
AGE: 52m ago

CYAH

MVFR

La Grande-4 Airport · La Grande-4

WIND: 120° / 3 kt
VIS: 9.0 SM
CEILING: OVC021
DIST: 193 NM SE
AGE: 52m ago

// Area map · 200 NM radius · CartoDB Dark Matter + aeronautical overlay

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