// Station · 12m ago

CYYW

Armstrong Airport

CAT VFR

WIND 140° / 10 kt

VIS 9.0 SM

CEILING OVC at 10,000 ft

T/Td 19°C / 10°C

ALTIM 29.91 inHg

WX -RA

ELEV 1,058 FT

50.2903°N / 88.9097°W

LOCATION · Armstrong, CA

WIND

140°10 kt

CYYW · 1,058 FT

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

METRIC

NOW · 18Z

+6H

+12H

+18H

WIND

140°/10

VIS

9.0 SM

CEILING

OVC100

LAYERS

OVC100

T / Td

19 / 10

ALTIM

29.91"

// Interpretation

VFR — ceiling 10,000 ft. Moderate winds at 140°/10 kt, visibility 9.0 SM, overcast at 10,000 ft. Reported weather: light rain (-RA). 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 CYYW 251800Z AUTO 14010KT 9SM -RA OVC100 19/10 A2991 RMK SLP126 DENSITY ALT 1800FT

CYYW · day 25 at 18:00 UTC · wind from 140° at 10 kt · visibility 9.0 SM · overcast at 10,000 ft · temp 19°C / dewpoint 10°C · altimeter 29.91" Hg · weather: light rain (-RA) · sea-level pressure 1012.6 mb

// Runway analysis · computed from current METAR wind

Wind 140° @ 10 kt

2 USABLE · 2 AVOID · 1 CAUTION

WIND

140°10 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

12★ HDG 120° H9 kt X3 kt RIGHT PRIMARY · 4,000'

18 HDG 180° H8 kt X6 kt LEFT ⚠ HIGH XW · 60%

TAILWIND ENDS · AVOID 2 ends

36 HDG 360° T8 kt X6 kt RIGHT —

30 HDG 300° T9 kt X3 kt LEFT —

Pattern altitude: 2,058 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

1,800FT

+742 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV1,058 FT OAT+19°C ISA DELTA+6°C PRESSURE ALT1,064 FT

// Performance equivalent Operating here right now feels like operating at CYLD (Chapleau Airport, Chapleau, elev 1,470 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+18%

-13%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+13%

-8%

Light jetCJ4, Phenom 300, M2

+7%

-5%

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 · 1 reported · highest to lowest

// Reported layers (highest → lowest)

OVC100

Overcast · base 10,000 ft AGL · 8 oktas

// Computed

CEILING10,000 ft AGL HIGHEST LAYER10,000 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL10,654 ft VFR MARGIN+7,000 ft

// Sun & Moon · times in Z · bar = local day (UTC-6)

11:01ZSUNRISE

17:59ZSOLAR NOON

00:57ZSUNSET

01:32ZCIVIL END

CURRENT18:12Z DAYLIGHT REMAINING6h 45m VFR NIGHT BEGINS01:32Z (7h 19m) DAY LENGTH13h 56m

Waxing Gibbous

ILLUMINATION94% MOONRISE21:07Z MOONSET11:03Z FULL MOON IN2 days

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

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