// Station · 5h 30m ago · STALE

CYDC

Princeton Airport

CAT VFR

WIND 310° / 7 kt

VIS 10+ SM

CEILING Few/scattered only

T/Td 10°C / -2°C

ALTIM 29.95 inHg

ELEV 2,298 FT

49.4681°N / 120.5110°W

LOCATION · Town of Princeton, CA

WIND

310°7 kt

CYDC · 2,298 FT

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

METRIC

NOW · 01Z

+6H

+12H

+18H

WIND

310°/7

VIS

10+ SM

CEILING

—

LAYERS

FEW230 SCT250

T / Td

10 / -2

ALTIM

29.95"

// Interpretation

VFR with light winds at 310°/7 kt. Visibility better than 10 statute miles and a few at 23,000 ft, and scattered at 25,000 ft. Would shift to MVFR if the ceiling drops to 3,000 ft or visibility below 5 SM.

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SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR CYDC 130100Z 31007KT 25SM FEW230 SCT250 10/M02 A2995 RMK CI1CI3 LAST STFD OBS/NEXT 13 1300Z SLP162

CYDC · day 13 at 01:00 UTC · wind from 310° at 7 kt · visibility 10+ SM · a few clouds at 23,000 ft · scattered layer at 25,000 ft · temp 10°C / dewpoint -2°C · altimeter 29.95" Hg · sea-level pressure 1016.2 mb

// Runway analysis · computed from current METAR wind

Wind 310° @ 7 kt

2 USABLE · 0 AVOID · 2 CAUTION

WIND

310°7 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

04★ HDG 040° H0 kt X7 kt LEFT PRIMARY · 3,932'

22 HDG 220° H0 kt X7 kt RIGHT ⚠ HIGH XW · 100%

Pattern altitude: 3,298 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

2,200FT

-98 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV2,298 FT OAT+10°C ISA DELTA-1°C PRESSURE ALT2,266 FT

// Performance equivalent Operating here right now feels like operating at CYCP (Blue River Airport, Blue River, elev 2,240 ft) on a standard ISA day.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+22%

-15%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+15%

-10%

Light jetCJ4, Phenom 300, M2

+9%

-7%

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 · 2 reported · highest to lowest

// Reported layers (highest → lowest)

SCT250

Scattered · base 25,000 ft AGL · ~3–4 oktas

FEW230

Few · base 23,000 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER25,000 ft TOTAL COVERAGE~48% (mixed) FREEZING LEVEL7,349 ft VFR MARGINunlimited

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

14:19ZSUNRISE

19:49ZSOLAR NOON

01:19ZSUNSET

01:51ZCIVIL END

CURRENT06:30Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS01:51Z (past) DAY LENGTH10h 59m

Waxing Crescent

ILLUMINATION4% MOONRISE15:51Z MOONSET02:51Z FULL MOON IN13 days

// Nearest reporting stations

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

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