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// Station · 11m ago

VTCC

Chiang Mai International Airport
CAT VFR
WIND 340° / 4 kt
VIS 6+ SM
CEILING Few/scattered only
T/Td 26°C / 25°C
ALTIM 29.62 inHg
ELEV 1,036 FT
18.7668°N / 98.9626°E
LOCATION · Chiang Mai, TH
N
WIND
340°4 kt
VTCC · 1,036 FT
© OSM · CartoDB

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

METRIC
NOW · 14Z
+6H
+12H
+18H
WIND
340°/4
 
 
 
VIS
6+ SM
 
 
 
CEILING
 
 
 
LAYERS
SCT035
 
 
 
T / Td
26 / 25
 
 
 
ALTIM
29.62"
 
 
 

// Interpretation

VFR with light winds at 340°/4 kt. Visibility 6+ SM and scattered at 3,500 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 VTCC 111400Z 34004KT 9999 SCT035 26/25 Q1003 NOSIG

VTCC · day 11 at 14:00 UTC · wind from 340° at 4 kt · visibility 6+ SM · scattered layer at 3,500 ft · temp 26°C / dewpoint 25°C · altimeter 29.62" Hg

// Runway analysis · computed from current METAR wind

Wind 340° @ 4 kt
ALL USABLE · WINDS CALM
N
WIND
340°4 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS 2 ends
18 HDG 180° CALM 11,155'
36 HDG 360° CALM 11,155'
Pattern altitude: 2,036 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 +14°C

3,000FT
+1,964 FT ABOVE FIELD ELEV
FIELD ELEV1,036 FT OAT+26°C ISA DELTA+14°C PRESSURE ALT1,337 FT
// Performance equivalent Your aircraft will perform as if it's at a field 3,000 ft high on a standard ISA day — that's +1,964 ft above VTCC's actual elevation.
// Aircraft performance impact SIGNIFICANT
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+30%
-21%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+21%
-14%
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.

// Cloud layers · 1 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 14,167 FT SCT035 VTCC ELEV · 1,036 FT
// Reported layers (highest → lowest)
SCT035
Scattered · base 3,500 ft AGL · ~3–4 oktas
// Computed
CEILING HIGHEST LAYER3,500 ft TOTAL COVERAGE~40% (mixed) FREEZING LEVEL14,167 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+7)

22:54ZSUNRISE
05:30ZSOLAR NOON
12:06ZSUNSET
12:30ZCIVIL END
CURRENT14:11Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS12:30Z (past) DAY LENGTH13h 11m
Waning Crescent
ILLUMINATION11% MOONRISE20:18Z MOONSET09:30Z FULL MOON IN18 days

// Nearest reporting stations · 2 shown · 100 NM (sparse area)

// Area map · 100 NM radius · CartoDB Dark Matter + aeronautical overlay

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