// Station · 22m ago
RCNN
Tainan International Airport / Tainan Air Base
CAT VFR
WIND 260° / 3 kt
VIS 6+ SM
CEILING Few/scattered only
T/Td 29°C / 26°C
ALTIM 29.80 inHg
ELEV 63 FT
22.9504°N / 120.2060°E
LOCATION · Tainan (Rende), TW
WIND
260°3 kt
RCNN · 63 FT
© OSM · CartoDB
// Current + 24h forecast · METAR loaded · TAF loading…
METRIC
NOW · 11Z
+6H
+12H
+18H
WIND
260°/3
VIS
6+ SM
CEILING
—
LAYERS
FEW014 SCT120
T / Td
29 / 26
ALTIM
29.80"
// Interpretation
VFR with light winds at 260°/3 kt. Visibility 6+ SM and a few at 1,400 ft, and scattered at 12,000 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 RCNN 271130Z 26003KT 9999 FEW014 SCT120 29/26 Q1009 NOSIG RMK A2981
RCNN · day 27 at 11:30 UTC · wind from 260° at 3 kt · visibility 6+ SM · a few clouds at 1,400 ft · scattered layer at 12,000 ft · temp 29°C / dewpoint 26°C · altimeter 29.80" Hg
// Runway analysis · computed from current METAR wind
Wind 260° @ 3 kt
ALL USABLE · WINDS CALM
WIND
260°3 kt
HEADWIND
CAUTION · HIGH XW
AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS
4 ends
18L
HDG 180°
—CALM
——
10,007'
36R
HDG 360°
—CALM
——
10,007'
18R
HDG 180°
—CALM
——
10,007'
36L
HDG 360°
—CALM
——
10,007'
Pattern altitude: 1,063 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
1,900FT
+1,837 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS
↗ +100 FT
24h AGO18h12h6hNOW
FIELD ELEV63 FT
OAT+29°C
ISA DELTA+14°C
PRESSURE ALT187 FT
// Performance equivalent
Your aircraft will perform as if it's at a field 1,900 ft high
on a standard ISA day — that's +1,837 ft above
RCNN's actual elevation.
// Aircraft performance impact
MINOR
TAKEOFF ROLL
CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+19%
-13%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+13%
-9%
Light jetCJ4, Phenom 300, M2
+8%
-6%
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+8)
21:15ZSUNRISE
03:57ZSOLAR NOON
10:39ZSUNSET
11:04ZCIVIL END
CURRENT11:52Z
DAYLIGHT REMAINING0m
VFR NIGHT BEGINS11:04Z (past)
DAY LENGTH13h 23m
Waxing Gibbous
ILLUMINATION83%
MOONRISE06:00Z
MOONSET19:24Z
FULL MOON IN4 days
// Nearest reporting stations · 3 shown · 60 NM radius
RCKH
VFR
Kaohsiung International Airport · Kaohsiung (Xiaogang)
- WIND
- 290° / 8 kt
- VIS
- 6+ SM
- CEILING
- FEW012
- DIST
- 24 NM S
- AGE
- 22m ago
RCQC
VFR
→
MVFR
21Z
Penghu Magong Airport · Huxi
- WIND
- 210° / 7 kt
- VIS
- 6+ SM
- CEILING
- FEW012
- DIST
- 49 NM NW
- AGE
- 22m ago
RCFN
VFR
Taitung Airport · Taitung City
- WIND
- 220° / 3 kt
- VIS
- 6+ SM
- CEILING
- FEW015
- DIST
- 51 NM E
- AGE
- 22m ago
// Area map · 60 NM radius · CartoDB Dark Matter + aeronautical overlay
© OpenStreetMap · CartoDB · OpenAIP
//
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