// Station · 19m ago

LKNA

Náměšť Air Base

CAT VFR

WIND 060° / 9 kt

VIS 6+ SM

CEILING CLR

T/Td 20°C / 10°C

ALTIM 29.97 inHg

ELEV 1,548 FT

49.1663°N / 16.1240°E

LOCATION · Sedlec, CZ

WIND

060°9 kt

LKNA · 1,548 FT

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

METRIC

NOW · 16Z

+6H

+12H

+18H

WIND

060°/9

VIS

6+ SM

CEILING

CLR

LAYERS

—

T / Td

20 / 10

ALTIM

29.97"

// Interpretation

VFR with moderate winds at 060°/9 kt. Visibility 6+ SM 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 LKNA 251600Z 06009KT CAVOK 20/10 Q1015 NOSIG

LKNA · day 25 at 16:00 UTC · wind from 060° at 9 kt · visibility 6+ SM · temp 20°C / dewpoint 10°C · altimeter 29.97" Hg

// Runway analysis · computed from current METAR wind

Wind 060° @ 9 kt

1 USABLE · 1 AVOID · 1 CAUTION

WIND

060°9 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

12★ HDG 120° H5 kt X8 kt LEFT PRIMARY · 7,874'

TAILWIND ENDS · AVOID 1 ends

30 HDG 300° T5 kt X8 kt RIGHT —

Pattern altitude: 2,548 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

2,500FT

+952 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV1,548 FT OAT+20°C ISA DELTA+8°C PRESSURE ALT1,495 FT

// Performance equivalent Your aircraft will perform as if it's at a field 2,500 ft high on a standard ISA day — that's +952 ft above LKNA's actual elevation.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+25%

-18%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+18%

-11%

Light jetCJ4, Phenom 300, M2

+10%

-8%

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 LEVEL11,649 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+1)

04:02ZSUNRISE

10:59ZSOLAR NOON

17:55ZSUNSET

18:29ZCIVIL END

CURRENT16:19Z DAYLIGHT REMAINING1h 35m VFR NIGHT BEGINS18:29Z (2h 09m) DAY LENGTH13h 52m

Waxing Gibbous

ILLUMINATION94% MOONRISE14:05Z MOONSET03:58Z 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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