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// Station · 20m ago

LFAC

Calais Marck Airport
CAT VFR
WIND 040° / 14 kt
VIS 6+ SM
CEILING CLR
T/Td 22°C / 15°C
ALTIM 30.27 inHg
ELEV 12 FT
50.9621°N / 1.9548°E
LOCATION · Calais, FR
N
WIND
040°14 kt
LFAC · 12 FT
© OSM · CartoDB

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

METRIC
NOW · 10Z
+6H
+12H
+18H
WIND
040°/14
 
 
 
VIS
6+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
22 / 15
 
 
 
ALTIM
30.27"
 
 
 

// Interpretation

VFR with brisk winds at 040°/14 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 LFAC 271030Z AUTO 04014KT CAVOK 22/15 Q1025

LFAC · day 27 at 10:30 UTC · wind from 040° at 14 kt · visibility 6+ SM · temp 22°C / dewpoint 15°C · altimeter 30.27" Hg

// Runway analysis · computed from current METAR wind

Wind 040° @ 14 kt
1 USABLE · 1 AVOID
N
WIND
040°14 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
06 HDG 060° H13 kt X5 kt LEFT PRIMARY · 5,036'
TAILWIND ENDS · AVOID 1 ends
24 HDG 240° T13 kt X5 kt RIGHT
Pattern altitude: 1,012 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 +6°C

400FT
+388 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -800 FT
1,600 300 -1,000
24h AGO18h12h6hNOW
FIELD ELEV12 FT OAT+22°C ISA DELTA+6°C PRESSURE ALT-336 FT
// Performance equivalent Operating here right now feels like operating at LFOB (Beauvais-Tillé airport, Beauvais, elev 359 ft) on a standard ISA day.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+4%
-3%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+3%
-2%
Light jetCJ4, Phenom 300, M2
+2%
-1%

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 · 11,123 FT LFAC ELEV · 12 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL11,123 ft VFR MARGINunlimited

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

03:49ZSUNRISE
11:50ZSOLAR NOON
19:52ZSUNSET
20:35ZCIVIL END
CURRENT10:50Z DAYLIGHT REMAINING9h 01m VFR NIGHT BEGINS20:35Z (9h 45m) DAY LENGTH16h 02m
Waxing Gibbous
ILLUMINATION83% MOONRISE12:32Z MOONSET04:34Z 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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