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// Station · 27m ago

KCHS

Charleston International Airport
CAT VFR
WIND 270° / 13 kt G20
VIS 10+ SM
CEILING BKN at 20,000 ft
T/Td 35°C / 22.2°C
ALTIM 30.07 inHg
ELEV 46 FT
32.8962°N / 80.0382°W
LOCATION · Charleston, US
N
WIND
270°13 kt
KCHS · 46 FT
© OSM · CartoDB

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

METRIC
NOW · 16Z
+6H
+12H
+18H
WIND
270°/13G20
 
 
 
VIS
10+ SM
 
 
 
CEILING
BKN200
 
 
 
LAYERS
SCT050 BKN200
 
 
 
T / Td
35 / 22
 
 
 
ALTIM
30.07"
 
 
 

// Interpretation

VFR — ceiling 20,000 ft. Brisk winds at 270°/13 kt, gusting 20, visibility better than 10 statute miles, scattered at 5,000 ft, and broken at 20,000 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 KCHS 111656Z 27013G20KT 10SM SCT050 BKN200 35/22 A3007 RMK AO2 SLP182 T03500222

KCHS · day 11 at 16:56 UTC · wind from 270° at 13 kt, gusts to 20 kt · visibility 10+ SM · scattered layer at 5,000 ft · broken layer at 20,000 ft · temp 35°C / dewpoint 22°C · altimeter 30.07" Hg · automated station w/ precipitation discriminator · sea-level pressure 1018.2 mb

// Runway analysis · computed from current METAR wind

Wind 270° @ 13 ktG20
2 USABLE · 2 AVOID · 2 CAUTION
N
WIND
270°13G20 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 2 usable
21 HDG 210° H7 kt X11 kt RIGHT PRIMARY · 7,000'
33 HDG 330° H7 kt X11 kt LEFT ⚠ HIGH XW · 55%
TAILWIND ENDS · AVOID 2 ends
15 HDG 150° T6 kt X11 kt RIGHT
03 HDG 030° T7 kt X11 kt LEFT
Pattern altitude: 1,046 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 +20°C

2,300FT
+2,254 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -200 FT
2,800 1,700 600
24h AGO18h12h6hNOW
FIELD ELEV46 FT OAT+35°C ISA DELTA+20°C PRESSURE ALT-107 FT
// Performance equivalent Operating here right now feels like operating at K6A4 (Johnson County Airport, Mountain City, elev 2,240 ft) on a standard ISA day.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+23%
-16%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+16%
-10%
Light jetCJ4, Phenom 300, M2
+9%
-7%

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 · 17,723 FT SCT050 BKN200 · CEILING KCHS ELEV · 46 FT
// Reported layers (highest → lowest)
BKN200
Broken · base 20,000 ft AGL · ~5–7 oktas
SCT050
Scattered · base 5,000 ft AGL · ~3–4 oktas
// Computed
CEILING20,000 ft AGL HIGHEST LAYER20,000 ft TOTAL COVERAGE~83% (mostly covered) FREEZING LEVEL17,723 ft VFR MARGIN+17,000 ft

// Sun & Moon · times in Z · bar = local day (UTC-5)

10:21ZSUNRISE
17:26ZSOLAR NOON
00:32ZSUNSET
01:00ZCIVIL END
CURRENT17:23Z DAYLIGHT REMAINING7h 08m VFR NIGHT BEGINS01:00Z (7h 36m) DAY LENGTH14h 10m
Waning Crescent
ILLUMINATION10% MOONRISE07:51Z MOONSET22:02Z FULL MOON IN18 days

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

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

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