// Station · 32m ago

LSZG

Grenchen Airfield

CAT LIFR

WIND 210° / 1 kt

VIS 0.06 SM

CEILING —

T/Td 4°C / 4°C

ALTIM 30.27 inHg

WX FG

ELEV 1,411 FT

47.1816°N / 7.4172°E

LOCATION · Grenchen, CH

WIND

210°1 kt

LSZG · 1,411 FT

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

METRIC

NOW · 01Z

+6H

+12H

+18H

WIND

210°/1

VIS

0.06 SM

CEILING

—

LAYERS

OVX000

T / Td

4 / 4

ALTIM

30.27"

// Interpretation

LIFR — visibility 0.06 SM. Light winds at 210°/1 kt, visibility 0.06 SM, ovx at 0 ft. Reported weather: fog (FG). Fog is water droplets suspended at the surface with visibility under 5/8 SM; it typically burns off with daytime heating or a pickup in wind. LIFR is the lowest standard category. Would improve to IFR above 500 ft and 1 SM.

Loading TAF forecast narrative…

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

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// Raw observation METAR string + decoded

METAR LSZG 130120Z AUTO 21001KT 0100 FG VV000 04/04 Q1025

LSZG · day 13 at 01:20 UTC · wind from 210° at 1 kt · visibility 0.06 SM · ovx at 0 ft · temp 4°C / dewpoint 4°C · altimeter 30.27" Hg · weather: fog (FG)

// Runway analysis · computed from current METAR wind

Wind 210° @ 1 kt

ALL USABLE · WINDS CALM

WIND

210°1 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 8 ends

06 HDG 060° —CALM —— 3,281'

24 HDG 240° —CALM —— 3,281'

06R HDG 060° —CALM —— 2,297'

24L HDG 240° —CALM —— 2,297'

06G HDG 060° —CALM —— 2,295'

24G HDG 240° —CALM —— 2,295'

06L HDG 060° —CALM —— 1,640'

24R HDG 240° —CALM —— 1,640'

Pattern altitude: 2,411 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 -9°C

-0FT

-1,411 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV1,411 FT OAT+4°C ISA DELTA-9°C PRESSURE ALT1,063 FT

// Performance equivalent Your aircraft will perform as if it's at a field -0 ft high on a standard ISA day — that's -1,411 ft above LSZG's actual elevation.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+0%

-0%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+0%

-0%

Light jetCJ4, Phenom 300, M2

+0%

-0%

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 LEVEL3,431 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+0)

05:46ZSUNRISE

11:17ZSOLAR NOON

16:49ZSUNSET

17:19ZCIVIL END

CURRENT01:52Z DAYLIGHT REMAINING14h 56m VFR NIGHT BEGINS17:19Z (15h 27m) DAY LENGTH11h 02m

Waxing Crescent

ILLUMINATION3% MOONRISE07:08Z MOONSET18:11Z FULL MOON IN13 days

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

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