// Station · 5m ago

KN03

Cortland County Chase Field

CAT VFR

WIND CALM

VIS 10+ SM

CEILING Few/scattered only

T/Td 11°C / 11°C

ALTIM 29.93 inHg

ELEV 1,198 FT

42.5926°N / 76.2149°W

LOCATION · Cortland, US

WIND

000°0 kt

KN03 · 1,198 FT

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

METRIC

NOW · 12Z

+6H

+12H

+18H

WIND

CALM

VIS

10+ SM

CEILING

—

LAYERS

SCT055 SCT075 SCT110

T / Td

11 / 11

ALTIM

29.93"

// Interpretation

VFR with winds calm. Visibility better than 10 statute miles and scattered at 5,500 ft, scattered at 7,500 ft, and scattered at 11,000 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 KN03 131215Z AUTO 00000KT 10SM SCT055 SCT075 SCT110 11/11 A2993 RMK AO2

KN03 · day 13 at 12:15 UTC · winds calm · visibility 10+ SM · scattered layer at 5,500 ft · scattered layer at 7,500 ft · scattered layer at 11,000 ft · temp 11°C / dewpoint 11°C · altimeter 29.93" 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 2 ends

06 HDG 060° —CALM —— 3,401'

24 HDG 240° —CALM —— 3,401'

Pattern altitude: 2,198 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

1,000FT

-198 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV1,198 FT OAT+11°C ISA DELTA-2°C PRESSURE ALT1,186 FT

// Performance equivalent Operating here right now feels like operating at KPEO (Penn Yan Airport, Penn Yan, elev 990 ft) on a standard ISA day.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+10%

-7%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+7%

-5%

Light jetCJ4, Phenom 300, M2

+4%

-3%

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)

SCT110

Scattered · base 11,000 ft AGL · ~3–4 oktas

SCT075

Scattered · base 7,500 ft AGL · ~3–4 oktas

SCT055

Scattered · base 5,500 ft AGL · ~3–4 oktas

// Computed

CEILING— HIGHEST LAYER11,000 ft TOTAL COVERAGE~56% (mixed) FREEZING LEVEL6,754 ft VFR MARGINunlimited

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

11:16ZSUNRISE

16:52ZSOLAR NOON

22:27ZSUNSET

22:56ZCIVIL END

CURRENT12:20Z DAYLIGHT REMAINING10h 07m VFR NIGHT BEGINS22:56Z (10h 35m) DAY LENGTH11h 11m

Waxing Crescent

ILLUMINATION5% MOONRISE13:00Z MOONSET00:11Z 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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