// Station · 8h 12m ago · STALE · HARD STALE

VTCP

Phrae Airport

CAT VFR

WIND 220° / 6 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 30°C / 25°C

ALTIM 29.59 inHg

ELEV 538 FT

18.1322°N / 100.1650°E

WIND

220°6 kt

VTCP · 538 FT

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

METRIC

NOW · 10Z

+6H

+12H

+18H

WIND

220°/6

VIS

6+ SM

CEILING

—

LAYERS

FEW031

T / Td

30 / 25

ALTIM

29.59"

// Interpretation

VFR with light winds at 220°/6 kt. Visibility 6+ SM and a few at 3,100 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 VTCP 111000Z 22006KT 170V250 9999 FEW031 30/25 Q1002 NOSIG

VTCP · day 11 at 10:00 UTC · wind from 220° at 6 kt · visibility 6+ SM · a few clouds at 3,100 ft · temp 30°C / dewpoint 25°C · altimeter 29.59" Hg

// Runway analysis · computed from current METAR wind

Wind 220° @ 6 kt

1 USABLE · 1 AVOID

WIND

220°6 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

19★ HDG 190° H5 kt X3 kt RIGHT PRIMARY · 4,921'

TAILWIND ENDS · AVOID 1 ends

01 HDG 010° T5 kt X3 kt LEFT —

Pattern altitude: 1,538 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 +17°C

2,900FT

+2,362 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↗ +900 FT

24h AGO18h12h6hNOW

FIELD ELEV538 FT OAT+30°C ISA DELTA+17°C PRESSURE ALT869 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 +2,362 ft above VTCP's actual elevation.

// Aircraft performance impact MINOR

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.

// Cloud layers · 1 reported · highest to lowest

// Reported layers (highest → lowest)

FEW031

Few · base 3,100 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER3,100 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL15,690 ft VFR MARGINunlimited

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

22:51ZSUNRISE

05:25ZSOLAR NOON

12:00ZSUNSET

12:24ZCIVIL END

CURRENT18:12Z DAYLIGHT REMAINING17h 47m VFR NIGHT BEGINS12:24Z (18h 11m) DAY LENGTH13h 08m

Waning Crescent

ILLUMINATION10% MOONRISE20:23Z MOONSET09:32Z FULL MOON IN18 days

// Nearest reporting stations · 1 shown · 100 NM (sparse area)

VTCC

VFR

Chiang Mai International Airport · Chiang Mai

WIND: 360° / 4 kt
VIS: 6+ SM
CEILING: SCT035
DIST: 78 NM NW
AGE: 12m ago

// Area map · 80 NM radius · CartoDB Dark Matter + aeronautical overlay

AIRSPACE

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