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// Station · 7m ago

LSGC

Les Eplatures Airport
CAT VFR
WIND 300° / 5 kt
VIS 6+ SM
CEILING CLR
T/Td 25°C / 11°C
ALTIM 30.30 inHg
ELEV 3,368 FT
47.0839°N / 6.7928°E
LOCATION · La Chaux-de-Fonds, CH
N
WIND
300°5 kt
LSGC · 3,368 FT
© OSM · CartoDB

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

METRIC
NOW · 12Z
+6H
+12H
+18H
WIND
300°/5
 
 
 
VIS
6+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
25 / 11
 
 
 
ALTIM
30.30"
 
 
 

// Interpretation

VFR with light winds at 300°/5 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 LSGC 271250Z 30005KT 240V010 CAVOK 25/11 Q1026 RMK CAUTION HIGH DENSITY ALTITUDE

LSGC · day 27 at 12:50 UTC · wind from 300° at 5 kt · visibility 6+ SM · temp 25°C / dewpoint 11°C · altimeter 30.30" Hg

// Runway analysis · computed from current METAR wind

Wind 300° @ 5 kt
1 USABLE · 1 AVOID
N
WIND
300°5 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
23 HDG 230° H2 kt X5 kt RIGHT PRIMARY · 3,707'
TAILWIND ENDS · AVOID 1 ends
05 HDG 050° T2 kt X5 kt LEFT
Pattern altitude: 4,368 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 +16°C

4,900FT
+1,532 FT ABOVE FIELD ELEV
FIELD ELEV3,368 FT OAT+25°C ISA DELTA+16°C PRESSURE ALT2,990 FT
// Performance equivalent Your aircraft will perform as if it's at a field 4,900 ft high on a standard ISA day — that's +1,532 ft above LSGC's actual elevation.
// Aircraft performance impact SIGNIFICANT
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+49%
-34%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+34%
-22%
Light jetCJ4, Phenom 300, M2
+20%
-15%

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 · clear · no layers reported

FT 0 5k 10k 15k 20k 25k FRZ LVL · 15,994 FT LSGC ELEV · 3,368 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL15,994 ft VFR MARGINunlimited

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

03:46ZSUNRISE
11:31ZSOLAR NOON
19:16ZSUNSET
19:54ZCIVIL END
CURRENT12:57Z DAYLIGHT REMAINING6h 18m VFR NIGHT BEGINS19:54Z (6h 56m) DAY LENGTH15h 29m
Waxing Gibbous
ILLUMINATION83% MOONRISE12:33Z MOONSET04:03Z FULL MOON IN4 days

// Nearest reporting stations · 5 shown · 60 NM radius

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

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