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// VLLN · Luang Namtha Airport · Luang Namtha

// STALE Observation is 2h 17m old — METAR cadence is typically hourly. A fresh report may be on its way.

// Station · 2h 17m ago · STALE

VLLN

Luang Namtha Airport
CAT VFR
WIND 270° / 2 kt
VIS 6+ SM
CEILING OVC at 10,000 ft
T/Td 28°C / 25°C
ALTIM 29.65 inHg
ELEV 1,968 FT
20.9670°N / 101.4000°E
LOCATION · Luang Namtha, LA
N
WIND
270°2 kt
VLLN · 1,968 FT
© OSM · CartoDB

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

METRIC
NOW · 12Z
+6H
+12H
+18H
WIND
270°/2
 
 
 
VIS
6+ SM
 
 
 
CEILING
OVC100
 
 
 
LAYERS
SCT020 OVC100
 
 
 
T / Td
28 / 25
 
 
 
ALTIM
29.65"
 
 
 

Loading TAF forecast…

// Interpretation

VFR — ceiling 10,000 ft. Light winds at 270°/2 kt, visibility 6+ SM, scattered at 2,000 ft, and overcast at 10,000 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 VLLN 111200Z 27002KT 9999 SCT020 OVC100 28/25 Q1004 NOSIG

VLLN · day 11 at 12:00 UTC · wind from 270° at 2 kt · visibility 6+ SM · scattered layer at 2,000 ft · overcast at 10,000 ft · temp 28°C / dewpoint 25°C · altimeter 29.65" Hg

// Runway analysis · computed from current METAR wind

Wind 270° @ 2 kt
ALL USABLE · WINDS CALM
N
WIND
270°2 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS 2 ends
18 HDG 180° —CALM —— 5,249'
36 HDG 360° —CALM —— 5,249'
Pattern altitude: 2,968 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

4,300FT
+2,332 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↗ +500 FT
4,800 4,200 3,600
24h AGO18h12h6hNOW
FIELD ELEV1,968 FT OAT+28°C ISA DELTA+17°C PRESSURE ALT2,240 FT
// Performance equivalent Your aircraft will perform as if it's at a field 4,300 ft high on a standard ISA day — that's +2,332 ft above VLLN's actual elevation.
// Aircraft performance impact SIGNIFICANT
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+43%
-30%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+30%
-19%
Light jetCJ4, Phenom 300, M2
+17%
-13%

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 · 16,109 FT SCT020 OVC100 · CEILING VLLN ELEV · 1,968 FT
// Reported layers (highest → lowest)
OVC100
Overcast · base 10,000 ft AGL · 8 oktas
SCT020
Scattered · base 2,000 ft AGL · ~3–4 oktas
// Computed
CEILING10,000 ft AGL HIGHEST LAYER10,000 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL16,109 ft VFR MARGIN+7,000 ft

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

22:41ZSUNRISE
05:20ZSOLAR NOON
12:00ZSUNSET
12:25ZCIVIL END
CURRENT14:17Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS12:25Z (past) DAY LENGTH13h 19m
Waning Crescent
ILLUMINATION11% MOONRISE20:05Z MOONSET09:24Z FULL MOON IN18 days

// Nearest reporting stations

No nearby reporting stations found within 200 NM of VLLN.

// Area map · 60 NM radius · CartoDB Dark Matter + aeronautical overlay

© OpenStreetMap · CartoDB · OpenAIP
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