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// Station · 49m ago

VTPM

Mae Sot Airport
CAT VFR
WIND 240° / 10 kt
VIS 6+ SM
CEILING Few/scattered only
T/Td 31°C / 26°C
ALTIM 29.71 inHg
WX VCSH
ELEV 690 FT
16.6999°N / 98.5451°E
N
WIND
240°10 kt
VTPM · 690 FT
© OSM · CartoDB

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

METRIC
NOW · 10Z
+6H
+12H
+18H
WIND
240°/10
 
 
 
VIS
6+ SM
 
 
 
CEILING
 
 
 
LAYERS
FEW025 SCT030
 
 
 
T / Td
31 / 26
 
 
 
ALTIM
29.71"
 
 
 

// Interpretation

VFR with moderate winds at 240°/10 kt. Visibility 6+ SM and a few at 2,500 ft, and scattered at 3,000 ft. Reported weather: VCSH. 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 VTPM 271000Z 24010KT 210V270 9999 VCSH FEW025CB SCT030 31/26 Q1006 NOSIG

VTPM · day 27 at 10:00 UTC · wind from 240° at 10 kt · visibility 6+ SM · a few clouds at 2,500 ft · scattered layer at 3,000 ft · temp 31°C / dewpoint 26°C · altimeter 29.71" Hg · weather: VCSH

// Runway analysis · computed from current METAR wind

Wind 240° @ 10 kt
1 USABLE · 1 AVOID
N
WIND
240°10 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
27 HDG 270° H9 kt X5 kt LEFT PRIMARY · 4,921'
TAILWIND ENDS · AVOID 1 ends
09 HDG 090° T9 kt X5 kt RIGHT
Pattern altitude: 1,690 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 +18°C

3,000FT
+2,310 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↗ +700 FT
3,500 2,750 2,000
24h AGO18h12h6hNOW
FIELD ELEV690 FT OAT+31°C ISA DELTA+18°C PRESSURE ALT903 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 +2,310 ft above VTPM'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 · 2 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 16,347 FT FEW025 SCT030 VTPM ELEV · 690 FT
// Reported layers (highest → lowest)
SCT030
Scattered · base 3,000 ft AGL · ~3–4 oktas
FEW025
Few · base 2,500 ft AGL · ~1–2 oktas
// Computed
CEILING HIGHEST LAYER3,000 ft TOTAL COVERAGE~48% (mixed) FREEZING LEVEL16,347 ft VFR MARGINunlimited

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

22:53ZSUNRISE
05:24ZSOLAR NOON
11:54ZSUNSET
12:18ZCIVIL END
CURRENT10:49Z DAYLIGHT REMAINING1h 05m VFR NIGHT BEGINS12:18Z (1h 29m) DAY LENGTH13h 01m
Waxing Gibbous
ILLUMINATION83% MOONRISE07:36Z MOONSET20:37Z FULL MOON IN4 days

// Nearest reporting stations · 5 shown · 150 NM (sparse area)

// Area map · 140 NM radius · CartoDB Dark Matter + aeronautical overlay

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