// Station · 7m ago

K4I3

Knox County Airport

CAT VFR

WIND 060° / 3 kt

VIS 10+ SM

CEILING CLR

T/Td 15°C / 15°C

ALTIM 30.21 inHg

ELEV 1,191 FT

40.3287°N / 82.5238°W

LOCATION · Mount Vernon, US

WIND

060°3 kt

K4I3 · 1,191 FT

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

METRIC

NOW · 07Z

+6H

+12H

+18H

WIND

060°/3

VIS

10+ SM

CEILING

CLR

LAYERS

—

T / Td

15 / 15

ALTIM

30.21"

// Interpretation

VFR with light winds at 060°/3 kt. Visibility better than 10 statute miles and no reported cloud layers. 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 K4I3 290715Z AUTO 06003KT 10SM CLR 15/15 A3021 RMK AO2

K4I3 · day 29 at 07:15 UTC · wind from 060° at 3 kt · visibility 10+ SM · temp 15°C / dewpoint 15°C · altimeter 30.21" Hg · automated station w/ precipitation discriminator

// Runway analysis · computed from current METAR wind

Wind 060° @ 3 kt

ALL USABLE · WINDS CALM

WIND

060°3 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

10 HDG 100° —CALM —— 5,504'

28 HDG 280° —CALM —— 5,504'

Pattern altitude: 2,191 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

1,100FT

-91 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV1,191 FT OAT+15°C ISA DELTA+2°C PRESSURE ALT899 FT

// Performance equivalent Operating here right now feels like operating at K4I9 (Morrow County Airport, Mount Gilead, elev 1,085 ft) on a standard ISA day.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+11%

-8%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+8%

-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 · clear · no layers reported

// Reported layers (highest → lowest)

CLR

No reported cloud layers — clear sky from surface to reporting ceiling.

// Computed

CEILING— HIGHEST LAYER— TOTAL COVERAGEclear FREEZING LEVEL8,767 ft VFR MARGINunlimited

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

10:56ZSUNRISE

17:32ZSOLAR NOON

00:09ZSUNSET

00:37ZCIVIL END

CURRENT07:22Z DAYLIGHT REMAINING16h 46m VFR NIGHT BEGINS00:37Z (17h 14m) DAY LENGTH13h 13m

Waning Gibbous

ILLUMINATION98% MOONRISE23:55Z MOONSET13:08Z 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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