// Station · 20m ago

CYHM

John C. Munro Hamilton International Airport

CAT VFR

WIND 250° / 5 kt

VIS 10+ SM

CEILING BKN at 26,000 ft

T/Td 23°C / 16°C

ALTIM 30.05 inHg

ELEV 780 FT

43.1735°N / 79.9312°W

LOCATION · Hamilton, CA

WIND

250°5 kt

CYHM · 780 FT

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

METRIC

NOW · 22Z

+6H

+12H

+18H

WIND

250°/5

VIS

10+ SM

CEILING

BKN260

LAYERS

FEW042 FEW077 BKN260

T / Td

23 / 16

ALTIM

30.05"

// Interpretation

VFR — ceiling 26,000 ft. Light winds at 250°/5 kt, visibility better than 10 statute miles, a few at 4,200 ft, a few at 7,700 ft, and broken at 26,000 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 CYHM 252200Z 25005KT 15SM FEW042 FEW077TCU BKN260 23/16 A3005 RMK CF1TCU1CI5 SLP177 DENSITY ALT 1800FT

CYHM · day 25 at 22:00 UTC · wind from 250° at 5 kt · visibility 10+ SM · a few clouds at 4,200 ft · a few clouds at 7,700 ft · broken layer at 26,000 ft · temp 23°C / dewpoint 16°C · altimeter 30.05" Hg · sea-level pressure 1017.7 mb

// Runway analysis · computed from current METAR wind

Wind 250° @ 5 kt

2 USABLE · 2 AVOID

WIND

250°5 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

24★ HDG 240° H5 kt X1 kt RIGHT PRIMARY · 6,010'

30 HDG 300° H3 kt X4 kt LEFT 10,006'

TAILWIND ENDS · AVOID 2 ends

12 HDG 120° T3 kt X4 kt RIGHT —

06 HDG 060° T5 kt X1 kt LEFT —

Pattern altitude: 1,780 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 +9°C

1,800FT

+1,020 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV780 FT OAT+23°C ISA DELTA+9°C PRESSURE ALT647 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 MODERATE

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 · 3 reported · highest to lowest

// Reported layers (highest → lowest)

BKN260

Broken · base 26,000 ft AGL · ~5–7 oktas

FEW077

Few · base 7,700 ft AGL · ~1–2 oktas

FEW042

Few · base 4,200 ft AGL · ~1–2 oktas

// Computed

CEILING26,000 ft AGL HIGHEST LAYER26,000 ft TOTAL COVERAGE~91% (overcast) FREEZING LEVEL12,396 ft VFR MARGIN+23,000 ft

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

10:37ZSUNRISE

17:23ZSOLAR NOON

00:09ZSUNSET

00:38ZCIVIL END

CURRENT22:20Z DAYLIGHT REMAINING1h 48m VFR NIGHT BEGINS00:38Z (2h 18m) DAY LENGTH13h 31m

Waxing Gibbous

ILLUMINATION95% MOONRISE20:52Z MOONSET10:23Z FULL MOON IN2 days

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

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