// Station · 29m ago

LSMM

Meiringen Air Base

CAT VFR

WIND 250° / 6 kt

VIS 6+ SM

CEILING BKN at 9,000 ft

T/Td 13°C / 7°C

ALTIM 30.33 inHg

ELEV 1,895 FT

46.7423°N / 8.1089°E

LOCATION · Meiringen, CH

WIND

250°6 kt

LSMM · 1,895 FT

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

METRIC

NOW · 11Z

+6H

+12H

+18H

WIND

250°/6

VIS

6+ SM

CEILING

BKN090

LAYERS

BKN090

T / Td

13 / 7

ALTIM

30.33"

// Interpretation

VFR — ceiling 9,000 ft. Light winds at 250°/6 kt, visibility 6+ SM, broken at 9,000 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 LSMM 131150Z 25006KT 9999 BKN090 13/07 Q1027 RMK BLU

LSMM · day 13 at 11:50 UTC · wind from 250° at 6 kt · visibility 6+ SM · broken layer at 9,000 ft · temp 13°C / dewpoint 7°C · altimeter 30.33" Hg

// Runway analysis · computed from current METAR wind

Wind 250° @ 6 kt

1 USABLE · 1 AVOID

WIND

250°6 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

28★ HDG 280° H5 kt X3 kt LEFT PRIMARY · 6,571'

TAILWIND ENDS · AVOID 1 ends

10 HDG 100° T5 kt X3 kt RIGHT —

Pattern altitude: 2,895 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

1,600FT

-295 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV1,895 FT OAT+13°C ISA DELTA+1°C PRESSURE ALT1,488 FT

// Performance equivalent Operating here right now feels like operating at LSZB (Bern Airport, Bern, elev 1,671 ft) on a standard ISA day.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+16%

-11%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+11%

-7%

Light jetCJ4, Phenom 300, M2

+6%

-5%

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 · 1 reported · highest to lowest

// Reported layers (highest → lowest)

BKN090

Broken · base 9,000 ft AGL · ~5–7 oktas

// Computed

CEILING9,000 ft AGL HIGHEST LAYER9,000 ft TOTAL COVERAGE~75% (mostly covered) FREEZING LEVEL8,461 ft VFR MARGIN+6,000 ft

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

05:43ZSUNRISE

11:15ZSOLAR NOON

16:46ZSUNSET

17:17ZCIVIL END

CURRENT12:19Z DAYLIGHT REMAINING4h 27m VFR NIGHT BEGINS17:17Z (4h 58m) DAY LENGTH11h 03m

Waxing Crescent

ILLUMINATION5% MOONRISE07:26Z MOONSET18:30Z 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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