// Station · 3d ago · STALE · HARD STALE

CYAW

CFB Shearwater Heliport

CAT VFR

WIND 220° / 5 kt

VIS 10+ SM

CEILING Few/scattered only

T/Td 14°C / 10°C

ALTIM 29.86 inHg

ELEV 144 FT

44.6368°N / 63.5021°W

LOCATION · Halifax, CA

WIND

220°5 kt

CYAW · 144 FT

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

METRIC

NOW · 20Z

+6H

+12H

+18H

WIND

220°/5

VIS

10+ SM

CEILING

—

LAYERS

FEW016 FEW040 SCT060 SCT090

T / Td

14 / 10

ALTIM

29.86"

// Interpretation

VFR with light winds at 220°/5 kt. Visibility better than 10 statute miles and a few at 1,600 ft, a few at 4,000 ft, scattered at 6,000 ft, and scattered at 9,000 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

SPECI CYAW 092043Z CCA 22005KT 15SM FEW016 FEW040 SCT060 SCT090 14/10 A2986 RMK CU1SC2SC1AC1 DENSITY ALT 223FT SHRA DIST E LAST OBS/NXT 131200Z SLP111

CYAW · day 9 at 20:43 UTC · wind from 220° at 5 kt · visibility 10+ SM · a few clouds at 1,600 ft · a few clouds at 4,000 ft · scattered layer at 6,000 ft · scattered layer at 9,000 ft · temp 14°C / dewpoint 10°C · altimeter 29.86" Hg · sea-level pressure 1011.1 mb

// Runway analysis · computed from current METAR wind

Wind 220° @ 5 kt

1 USABLE · 1 AVOID

WIND

220°5 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

16H★ HDG 160° H3 kt X4 kt RIGHT PRIMARY · 3,500'

TAILWIND ENDS · AVOID 1 ends

34H HDG 340° T2 kt X4 kt LEFT —

Pattern altitude: 1,144 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 -1°C

100FT

-44 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV144 FT OAT+14°C ISA DELTA-1°C PRESSURE ALT200 FT

// Performance equivalent Operating here right now feels like operating at CYZX (CFB Greenwood, Greenwood, elev 92 ft) on a standard ISA day.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+1%

-1%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+1%

-0%

Light jetCJ4, Phenom 300, M2

+0%

-0%

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 · 4 reported · highest to lowest

// Reported layers (highest → lowest)

SCT090

Scattered · base 9,000 ft AGL · ~3–4 oktas

SCT060

Scattered · base 6,000 ft AGL · ~3–4 oktas

FEW040

Few · base 4,000 ft AGL · ~1–2 oktas

FEW016

Few · base 1,600 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER9,000 ft TOTAL COVERAGE~64% (mostly covered) FREEZING LEVEL7,215 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-4)

10:26ZSUNRISE

16:01ZSOLAR NOON

21:36ZSUNSET

22:06ZCIVIL END

CURRENT02:29Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS22:06Z (past) DAY LENGTH11h 10m

Waxing Crescent

ILLUMINATION3% MOONRISE11:50Z MOONSET23:00Z FULL MOON IN13 days

// Nearest reporting stations

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

AIRSPACE

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