// Station · 54m ago

CYWL

Williams Lake Airport

CAT VFR

WIND 300° / 3 kt

VIS 10+ SM

CEILING OVC at 3,900 ft

T/Td 7°C / 3°C

ALTIM 29.95 inHg

ELEV 3,085 FT

52.1831°N / 122.0540°W

LOCATION · Williams Lake, CA

WIND

300°3 kt

CYWL · 3,085 FT

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

METRIC

NOW · 01Z

+6H

+12H

+18H

WIND

300°/3

VIS

10+ SM

CEILING

OVC039

LAYERS

OVC039

T / Td

7 / 3

ALTIM

29.95"

// Interpretation

VFR — ceiling 3,900 ft. Light winds at 300°/3 kt, visibility better than 10 statute miles, overcast at 3,900 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 CYWL 130110Z 30003KT 15SM OVC039 07/03 A2995 RMK SC8 SLP176

CYWL · day 13 at 01:10 UTC · wind from 300° at 3 kt · visibility 10+ SM · overcast at 3,900 ft · temp 7°C / dewpoint 3°C · altimeter 29.95" Hg · sea-level pressure 1017.6 mb

// Runway analysis · computed from current METAR wind

Wind 300° @ 3 kt

ALL USABLE · WINDS CALM

WIND

300°3 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

12 HDG 120° —CALM —— 7,000'

30 HDG 300° —CALM —— 7,000'

Pattern altitude: 4,085 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

2,800FT

-285 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV3,085 FT OAT+7°C ISA DELTA-2°C PRESSURE ALT3,053 FT

// Performance equivalent Operating here right now feels like operating at CYDL (Dease Lake Airport, Dease Lake, elev 2,600 ft) on a standard ISA day.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+28%

-20%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+20%

-13%

Light jetCJ4, Phenom 300, M2

+11%

-8%

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)

OVC039

Overcast · base 3,900 ft AGL · 8 oktas

// Computed

CEILING3,900 ft AGL HIGHEST LAYER3,900 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL6,620 ft VFR MARGIN+900 ft

// Sun & Moon · times in Z · bar = local day (UTC-8)

14:29ZSUNRISE

19:55ZSOLAR NOON

01:22ZSUNSET

01:56ZCIVIL END

CURRENT02:04Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS01:56Z (past) DAY LENGTH10h 53m

Waxing Crescent

ILLUMINATION3% MOONRISE15:52Z MOONSET02:45Z 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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