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// Station · 10m ago

VNKT

Tribhuvan International Airport
CAT MVFR
WIND 250° / 5 kt
VIS 3.7 SM
CEILING BKN at 10,000 ft
T/Td 25°C / 25°C
ALTIM 29.68 inHg
WX VCRA
ELEV 4,390 FT
27.6966°N / 85.3591°E
LOCATION · Kathmandu, NP
N
WIND
250°5 kt
VNKT · 4,390 FT
© OSM · CartoDB

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

METRIC
NOW · 13Z
+6H
+12H
+18H
WIND
250°/5
 
 
 
VIS
3.7 SM
 
 
 
CEILING
BKN100
 
 
 
LAYERS
FEW010 FEW025 SCT030 BKN100
 
 
 
T / Td
25 / 25
 
 
 
ALTIM
29.68"
 
 
 

// Interpretation

MVFR — visibility 3.7 SM. Light winds at 250°/5 kt, visibility 3.7 SM, a few at 1,000 ft, a few at 2,500 ft, scattered at 3,000 ft, and broken at 10,000 ft. Reported weather: VCRA. Would drop to IFR below 1,000 ft ceiling or 3 SM visibility, or rise back to VFR above 3,000 ft and 5 SM.

Loading TAF forecast narrative…

SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR VNKT 111300Z 25005KT 6000 VCRA FEW010 FEW025CB SCT030 BKN100 25/25 Q1005 NOSIG CB TO NW N AND NE

VNKT · day 11 at 13:00 UTC · wind from 250° at 5 kt · visibility 3.7 SM · a few clouds at 1,000 ft · a few clouds at 2,500 ft · scattered layer at 3,000 ft · broken layer at 10,000 ft · temp 25°C / dewpoint 25°C · altimeter 29.68" Hg · weather: VCRA

// Runway analysis · computed from current METAR wind

Wind 250° @ 5 kt
1 USABLE · 1 AVOID
N
WIND
250°5 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
20 HDG 200° H3 kt X4 kt RIGHT PRIMARY · 10,991'
TAILWIND ENDS · AVOID 1 ends
02 HDG 020° T3 kt X4 kt LEFT
Pattern altitude: 5,390 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 +19°C

6,900FT
+2,510 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↗ +100 FT
7,500 6,800 6,100
24h AGO18h12h6hNOW
FIELD ELEV4,390 FT OAT+25°C ISA DELTA+19°C PRESSURE ALT4,632 FT
// Performance equivalent Your aircraft will perform as if it's at a field 6,900 ft high on a standard ISA day — that's +2,510 ft above VNKT's actual elevation.
// Aircraft performance impact SIGNIFICANT
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+69%
-48%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+48%
-31%
Light jetCJ4, Phenom 300, M2
+28%
-21%

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 · 4 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 17,016 FT FEW010 FEW025 SCT030 BKN100 · CEILING VNKT ELEV · 4,390 FT
// Reported layers (highest → lowest)
BKN100
Broken · base 10,000 ft AGL · ~5–7 oktas
SCT030
Scattered · base 3,000 ft AGL · ~3–4 oktas
FEW025
Few · base 2,500 ft AGL · ~1–2 oktas
FEW010
Few · base 1,000 ft AGL · ~1–2 oktas
// Computed
CEILING10,000 ft AGL HIGHEST LAYER10,000 ft TOTAL COVERAGE~99% (overcast) FREEZING LEVEL17,016 ft VFR MARGIN+7,000 ft

// Sun & Moon · times in Z · bar = local day (UTC+6)

23:31ZSUNRISE
06:25ZSOLAR NOON
13:18ZSUNSET
13:44ZCIVIL END
CURRENT13:10Z DAYLIGHT REMAINING7m VFR NIGHT BEGINS13:44Z (33m) DAY LENGTH13h 47m
Waning Crescent
ILLUMINATION11% MOONRISE20:53Z MOONSET10:40Z FULL MOON IN18 days

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

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

© OpenStreetMap · CartoDB · OpenAIP
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