// Station · 5m ago

KPHN

St Clair County International Airport

CAT VFR

WIND CALM

VIS 10+ SM

CEILING OVC at 9,500 ft

T/Td 16°C / 14°C

ALTIM 30.17 inHg

ELEV 650 FT

42.9110°N / 82.5289°W

LOCATION · Port Huron, US

WIND

000°0 kt

KPHN · 650 FT

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

METRIC

NOW · 07Z

+6H

+12H

+18H

WIND

CALM

VIS

10+ SM

CEILING

OVC095

LAYERS

OVC095

T / Td

16 / 14

ALTIM

30.17"

// Interpretation

VFR — ceiling 9,500 ft. Winds calm, visibility better than 10 statute miles, overcast at 9,500 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 KPHN 290715Z AUTO 00000KT 10SM OVC095 16/14 A3017 RMK AO2

KPHN · day 29 at 07:15 UTC · winds calm · visibility 10+ SM · overcast at 9,500 ft · temp 16°C / dewpoint 14°C · altimeter 30.17" Hg · automated station w/ precipitation discriminator

// Runway analysis · computed from current METAR wind

Wind CALM

ALL USABLE · WINDS CALM

WIND

000°calm

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 4 ends

04 HDG 040° —CALM —— 5,104'

22 HDG 220° —CALM —— 5,104'

10 HDG 100° —CALM —— 4,000'

28 HDG 280° —CALM —— 4,000'

Pattern altitude: 1,650 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

600FT

-50 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV650 FT OAT+16°C ISA DELTA+2°C PRESSURE ALT396 FT

// Performance equivalent Operating here right now feels like operating at KHYX (Saginaw County H.W. Browne Airport, Saginaw, elev 601 ft) on a standard ISA day.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+6%

-4%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+4%

-3%

Light jetCJ4, Phenom 300, M2

+2%

-2%

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)

OVC095

Overcast · base 9,500 ft AGL · 8 oktas

// Computed

CEILING9,500 ft AGL HIGHEST LAYER9,500 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL8,731 ft VFR MARGIN+6,500 ft

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

10:52ZSUNRISE

17:32ZSOLAR NOON

00:12ZSUNSET

00:41ZCIVIL END

CURRENT07:20Z DAYLIGHT REMAINING16h 51m VFR NIGHT BEGINS00:41Z (17h 20m) DAY LENGTH13h 19m

Waning Gibbous

ILLUMINATION98% MOONRISE23:52Z MOONSET13:11Z FULL MOON IN28 days

// Nearest reporting stations

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

AIRSPACE

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