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// STALE Observation is 2h 25m old — METAR cadence is typically hourly. A fresh report may be on its way.

// Station · 2h 25m ago · STALE

MSAC

La Aramuaca Airport
CAT VFR
WIND 260° / 4 kt
VIS 6+ SM
CEILING Few/scattered only
T/Td 34°C / 18°C
ALTIM 29.71 inHg
ELEV 285 FT
13.4480°N / 88.1201°W
LOCATION · San Miguel, SV
N
WIND
260°4 kt
MSAC · 285 FT
© OSM · CartoDB

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

METRIC
NOW · 22Z
+6H
+12H
+18H
WIND
260°/4
 
 
 
VIS
6+ SM
 
 
 
CEILING
 
 
 
LAYERS
FEW037
 
 
 
T / Td
34 / 18
 
 
 
ALTIM
29.71"
 
 
 

// Interpretation

VFR with light winds at 260°/4 kt. Visibility 6+ SM and a few at 3,700 ft. Would shift to MVFR if the ceiling drops to 3,000 ft or visibility below 5 SM.

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

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// Raw observation METAR string + decoded

METAR MSAC 282250Z 26004KT 9999 FEW037 34/18 Q1006 A2971

MSAC · day 28 at 22:50 UTC · wind from 260° at 4 kt · visibility 6+ SM · a few clouds at 3,700 ft · temp 34°C / dewpoint 18°C · altimeter 29.71" Hg

// Runway analysis

No runway data on file for MSAC.

// Density altitude · ISA +20°C

2,900FT
+2,615 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS loading…
FIELD ELEV285 FT OAT+34°C ISA DELTA+20°C PRESSURE ALT498 FT
// Performance equivalent Your aircraft will perform as if it's at a field 2,900 ft high on a standard ISA day — that's +2,615 ft above MSAC's actual elevation.
// Aircraft performance impact SIGNIFICANT
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+29%
-20%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+20%
-13%
Light jetCJ4, Phenom 300, M2
+12%
-9%

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 · 1 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 17,457 FT FEW037 MSAC ELEV · 285 FT
// Reported layers (highest → lowest)
FEW037
Few · base 3,700 ft AGL · ~1–2 oktas
// Computed
CEILING HIGHEST LAYER3,700 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL17,457 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-6)

11:42ZSUNRISE
17:55ZSOLAR NOON
00:08ZSUNSET
00:29ZCIVIL END
CURRENT01:15Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS00:29Z (past) DAY LENGTH12h 25m
Waning Gibbous
ILLUMINATION99% MOONRISE00:29Z MOONSET12:55Z FULL MOON IN29 days

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