// Station · 14m ago

EFKU

Kuopio Airport

CAT IFR

WIND 260° / 8 kt

VIS 6+ SM

CEILING BKN at 900 ft

T/Td 14°C / 12°C

ALTIM 29.47 inHg

ELEV 323 FT

63.0071°N / 27.7978°E

LOCATION · Kuopio / Siilinjärvi, FI

WIND

260°8 kt

EFKU · 323 FT

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

METRIC

NOW · 05Z

+6H

+12H

+18H

WIND

260°/8

VIS

6+ SM

CEILING

BKN009

LAYERS

BKN009 OVC039

T / Td

14 / 12

ALTIM

29.47"

// Interpretation

IFR conditions — ceiling 900 ft. Moderate winds at 260°/8 kt, visibility 6+ SM, broken at 900 ft, and overcast at 3,900 ft. Would deteriorate to LIFR below 500 ft ceiling or 1 SM, or improve to MVFR above 1,000 ft and 3 SM.

Loading TAF forecast narrative…

SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR EFKU 180520Z AUTO 26008KT 9999 BKN009 OVC039 14/12 Q0998

EFKU · day 18 at 05:20 UTC · wind from 260° at 8 kt · visibility 6+ SM · broken layer at 900 ft · overcast at 3,900 ft · temp 14°C / dewpoint 12°C · altimeter 29.47" Hg

// Runway analysis · computed from current METAR wind

Wind 260° @ 8 kt

1 USABLE · 1 AVOID · 1 CAUTION

WIND

260°8 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

33★ HDG 330° H3 kt X8 kt LEFT PRIMARY · 9,186'

TAILWIND ENDS · AVOID 1 ends

15 HDG 150° T3 kt X8 kt RIGHT —

Pattern altitude: 1,323 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 +1°C

800FT

+477 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV323 FT OAT+14°C ISA DELTA+1°C PRESSURE ALT772 FT

// Performance equivalent Operating here right now feels like operating at EFKS (Kuusamo Airport, Kuusamo, elev 866 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+8%

-6%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+6%

-4%

Light jetCJ4, Phenom 300, M2

+3%

-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 · 2 reported · highest to lowest

// Reported layers (highest → lowest)

OVC039

Overcast · base 3,900 ft AGL · 8 oktas

BKN009

Broken · base 900 ft AGL · ~5–7 oktas

// Computed

CEILING900 ft AGL HIGHEST LAYER3,900 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL7,394 ft VFR MARGIN-2,100 ft

// Sun & Moon · times in Z · bar = local day (UTC+2)

02:16ZSUNRISE

10:14ZSOLAR NOON

18:12ZSUNSET

19:10ZCIVIL END

CURRENT05:34Z DAYLIGHT REMAINING12h 38m VFR NIGHT BEGINS19:10Z (13h 36m) DAY LENGTH15h 56m

Waxing Crescent

ILLUMINATION25% MOONRISE06:15Z MOONSET22:11Z FULL MOON IN10 days

// Nearest reporting stations

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

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