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// Station · 14m ago

LSGS

Sion Airport
CAT VFR
WIND 240° / 11 kt
VIS 6+ SM
CEILING BKN at 12,000 ft
T/Td 23°C / 15°C
ALTIM 30.09 inHg
WX -RA
ELEV 1,582 FT
46.2192°N / 7.3269°E
LOCATION · Sion, CH
N
WIND
240°11 kt
LSGS · 1,582 FT
© OSM · CartoDB

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

METRIC
NOW · 15Z
+6H
+12H
+18H
WIND
240°/11
 
 
 
VIS
6+ SM
 
 
 
CEILING
BKN120
 
 
 
LAYERS
FEW110 BKN120
 
 
 
T / Td
23 / 15
 
 
 
ALTIM
30.09"
 
 
 

// Interpretation

VFR — ceiling 12,000 ft. Moderate winds at 240°/11 kt, visibility 6+ SM, a few at 11,000 ft, and broken at 12,000 ft. Reported weather: -RA. 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 LSGS 111550Z AUTO 24011KT 210V270 9999 -RA FEW110 BKN120 SCT///CB 23/15 Q1019

LSGS · day 11 at 15:50 UTC · wind from 240° at 11 kt · visibility 6+ SM · a few clouds at 11,000 ft · broken layer at 12,000 ft · temp 23°C / dewpoint 15°C · altimeter 30.09" Hg · weather: -RA

// Runway analysis · computed from current METAR wind

Wind 240° @ 11 kt
2 USABLE · 2 AVOID
N
WIND
240°11 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 2 usable
25 HDG 250° H11 kt X2 kt LEFT PRIMARY · 6,562'
25G HDG 250° H11 kt X2 kt LEFT 1,837'
TAILWIND ENDS · AVOID 2 ends
07 HDG 070° T11 kt X2 kt RIGHT
07G HDG 070° T11 kt X2 kt RIGHT
Pattern altitude: 2,582 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 +11°C

2,700FT
+1,118 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -1,300 FT
4,500 3,250 2,000
24h AGO18h12h6hNOW
FIELD ELEV1,582 FT OAT+23°C ISA DELTA+11°C PRESSURE ALT1,411 FT
// Performance equivalent Your aircraft will perform as if it's at a field 2,700 ft high on a standard ISA day — that's +1,118 ft above LSGS's actual elevation.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+27%
-19%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+19%
-12%
Light jetCJ4, Phenom 300, M2
+11%
-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.

// Cloud layers · 2 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 13,198 FT FEW110 BKN120 · CEILING LSGS ELEV · 1,582 FT
// Reported layers (highest → lowest)
BKN120
Broken · base 12,000 ft AGL · ~5–7 oktas
FEW110
Few · base 11,000 ft AGL · ~1–2 oktas
// Computed
CEILING12,000 ft AGL HIGHEST LAYER12,000 ft TOTAL COVERAGE~83% (mostly covered) FREEZING LEVEL13,198 ft VFR MARGIN+9,000 ft

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

03:51ZSUNRISE
11:37ZSOLAR NOON
19:23ZSUNSET
20:01ZCIVIL END
CURRENT16:04Z DAYLIGHT REMAINING3h 18m VFR NIGHT BEGINS20:01Z (3h 56m) DAY LENGTH15h 32m
Waning Crescent
ILLUMINATION11% MOONRISE01:18Z MOONSET16:51Z FULL MOON IN18 days

// Nearest reporting stations · 4 shown · 60 NM radius

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

© OpenStreetMap · CartoDB · OpenAIP
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