// Station · 32m ago

YBTL

Townsville Airport / RAAF Base Townsville

CAT VFR

WIND 200° / 3 kt

VIS 6+ SM

CEILING CLR

T/Td 20°C / 18°C

ALTIM 30.12 inHg

ELEV 18 FT

19.2529°S / 146.7665°E

LOCATION · Townsville, AU

WIND

200°3 kt

YBTL · 18 FT

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

METRIC

NOW · 16Z

+6H

+12H

+18H

WIND

200°/3

VIS

6+ SM

CEILING

CLR

LAYERS

—

T / Td

20 / 18

ALTIM

30.12"

// Interpretation

VFR with light winds at 200°/3 kt. Visibility 6+ SM and no reported cloud layers. 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 YBTL 251630Z AUTO 20003KT 9999 // NCD 20/18 Q1020

YBTL · day 25 at 16:30 UTC · wind from 200° at 3 kt · visibility 6+ SM · temp 20°C / dewpoint 18°C · altimeter 30.12" Hg

// Runway analysis · computed from current METAR wind

Wind 200° @ 3 kt

ALL USABLE · WINDS CALM

WIND

200°3 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 4 ends

01 HDG 010° —CALM —— 7,999'

19 HDG 190° —CALM —— 7,999'

07 HDG 070° —CALM —— 3,609'

25 HDG 250° —CALM —— 3,609'

Pattern altitude: 1,018 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 +5°C

400FT

+382 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV18 FT OAT+20°C ISA DELTA+5°C PRESSURE ALT-183 FT

// Performance equivalent Operating here right now feels like operating at YJLC (Julia Creek Airport, elev 404 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+4%

-3%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+3%

-2%

Light jetCJ4, Phenom 300, M2

+2%

-1%

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. Severity rating assumes a standard altimeter setting (29.92" Hg / 1013 hPa); a non-standard setting shifts the effective altitude by roughly 1,000 ft per 1" Hg of deviation.

// Cloud layers · clear · no layers reported

// Reported layers (highest → lowest)

CLR

No reported cloud layers — clear sky from surface to reporting ceiling.

// Computed

CEILING— HIGHEST LAYER— TOTAL COVERAGEclear FREEZING LEVEL10,119 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+10)

20:27ZSUNRISE

02:16ZSOLAR NOON

08:05ZSUNSET

08:27ZCIVIL END

CURRENT17:02Z DAYLIGHT REMAINING15h 02m VFR NIGHT BEGINS08:27Z (15h 25m) DAY LENGTH11h 37m

Waxing Gibbous

ILLUMINATION94% MOONRISE06:31Z MOONSET18:09Z FULL MOON IN2 days

// Nearest reporting stations

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

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