// Station · 1h 22m ago · STALE
VTCN
Nan Airport
CAT VFR
WIND 170° / 4 kt
VIS 6+ SM
CEILING Few/scattered only
T/Td 28°C / 25°C
ALTIM 29.59 inHg
ELEV 685 FT
18.8079°N / 100.7830°E
WIND
170°4 kt
VTCN · 685 FT
© OSM · CartoDB
// Current + 24h forecast · METAR loaded · TAF loading…
METRIC
NOW · 13Z
+6H
+12H
+18H
WIND
170°/4
VIS
6+ SM
CEILING
—
LAYERS
FEW030 SCT045
T / Td
28 / 25
ALTIM
29.59"
// Interpretation
VFR with light winds at 170°/4 kt. Visibility 6+ SM and a few at 3,000 ft, and scattered at 4,500 ft. Would shift to MVFR if the ceiling drops to 3,000 ft or visibility below 5 SM.
Loading TAF forecast narrative…
// Want this glance-able on 10 airports? METAR Deck →// Raw observation METAR string + decoded
METAR VTCN 111300Z 17004KT 130V200 9999 FEW030 SCT045 28/25 Q1002 NOSIG
VTCN · day 11 at 13:00 UTC · wind from 170° at 4 kt · visibility 6+ SM · a few clouds at 3,000 ft · scattered layer at 4,500 ft · temp 28°C / dewpoint 25°C · altimeter 29.59" Hg
// Runway analysis · computed from current METAR wind
Wind 170° @ 4 kt
ALL USABLE · WINDS CALM
WIND
170°4 kt
HEADWIND
CAUTION · HIGH XW
AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS
2 ends
02
HDG 020°
—CALM
——
6,562'
20
HDG 200°
—CALM
——
6,562'
Pattern altitude: 1,685 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 +15°C
2,800FT
+2,115 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS
↗ +500 FT
24h AGO18h12h6hNOW
FIELD ELEV685 FT
OAT+28°C
ISA DELTA+15°C
PRESSURE ALT1,016 FT
// Performance equivalent
Your aircraft will perform as if it's at a field 2,800 ft high
on a standard ISA day — that's +2,115 ft above
VTCN's actual elevation.
// Aircraft performance impact
MINOR
TAKEOFF ROLL
CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+28%
-20%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+20%
-13%
Light jetCJ4, Phenom 300, M2
+11%
-8%
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
// Sun & Moon · times in Z · bar = local day (UTC+7)
22:47ZSUNRISE
05:23ZSOLAR NOON
11:59ZSUNSET
12:23ZCIVIL END
CURRENT14:22Z
DAYLIGHT REMAINING0m
VFR NIGHT BEGINS12:23Z (past)
DAY LENGTH13h 11m
Waning Crescent
ILLUMINATION11%
MOONRISE20:11Z
MOONSET09:23Z
FULL MOON IN18 days
// Nearest reporting stations · 3 shown · 100 NM (sparse area)
VTCL
VFR
Lampang Airport
- WIND
- 190° / 5 kt
- VIS
- 6+ SM
- CEILING
- CLR
- DIST
- 80 NM SW
- AGE
- 1h 22m ago
VTCT
VFR
Mae Fah Luang - Chiang Rai International Airport · Chiang Rai
- WIND
- 160° / 3 kt
- VIS
- 6+ SM
- CEILING
- SCT045
- DIST
- 86 NM NW
- AGE
- 22m ago
VTUL
MVFR
Loei Airport
- WIND
- VRB / 1 kt
- VIS
- 6+ SM
- CEILING
- OVC030
- DIST
- 98 NM SE
- AGE
- 22m ago
// Area map · 100 NM radius · CartoDB Dark Matter + aeronautical overlay
© OpenStreetMap · CartoDB · OpenAIP
//
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