// Station · 13m ago

KYKN

Chan Gurney Municipal Airport

CAT VFR

WIND 240° / 3 kt

VIS 10+ SM

CEILING CLR

T/Td 20.6°C / 18.9°C

ALTIM 30.03 inHg

ELEV 1,306 FT

42.9167°N / 97.3859°W

LOCATION · Yankton, US

WIND

240°3 kt

KYKN · 1,306 FT

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

METRIC

NOW · 13Z

+6H

+12H

+18H

WIND

240°/3

VIS

10+ SM

CEILING

CLR

LAYERS

—

T / Td

21 / 19

ALTIM

30.03"

// Interpretation

VFR with light winds at 240°/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 KYKN 251356Z AUTO 24003KT 10SM CLR 21/19 A3003 RMK AO2 SLP173 T02060189

KYKN · day 25 at 13:56 UTC · wind from 240° at 3 kt · visibility 10+ SM · temp 21°C / dewpoint 19°C · altimeter 30.03" Hg · automated station w/ precipitation discriminator · sea-level pressure 1017.3 mb

// Runway analysis · computed from current METAR wind

Wind 240° @ 3 kt

ALL USABLE · WINDS CALM

WIND

240°3 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 4 ends

13 HDG 130° —CALM —— 6,094'

31 HDG 310° —CALM —— 6,094'

01 HDG 010° —CALM —— 3,380'

19 HDG 190° —CALM —— 3,380'

Pattern altitude: 2,306 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 +8°C

2,100FT

+794 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV1,306 FT OAT+21°C ISA DELTA+8°C PRESSURE ALT1,194 FT

// Performance equivalent Operating here right now feels like operating at K0D8 (Gettysburg Municipal Airport, Gettysburg, elev 2,062 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+21%

-15%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+15%

-9%

Light jetCJ4, Phenom 300, M2

+8%

-6%

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 LEVEL11,710 ft VFR MARGINunlimited

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

11:47ZSUNRISE

18:33ZSOLAR NOON

01:18ZSUNSET

01:48ZCIVIL END

CURRENT14:09Z DAYLIGHT REMAINING11h 08m VFR NIGHT BEGINS01:48Z (11h 38m) DAY LENGTH13h 30m

Waxing Gibbous

ILLUMINATION93% MOONRISE21:46Z MOONSET11:16Z FULL MOON IN2 days

// Nearest reporting stations

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

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