// 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

WIND

340°4 kt

VTCC · 1,036 FT

// 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

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

// 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)

VTCL

VFR

Lampang Airport

WIND: 190° / 5 kt
VIS: 6+ SM
CEILING: CLR
DIST: 43 NM SE
AGE: 1h 11m ago

VTCT

VFR

Mae Fah Luang - Chiang Rai International Airport · Chiang Rai

WIND: 160° / 3 kt
VIS: 6+ SM
CEILING: SCT045
DIST: 88 NM NE
AGE: 11m ago

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

AIRSPACE

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