// Station · 23m ago

SBTF

Tefé Airport

CAT VFR

WIND 300° / 3 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 34°C / 24°C

ALTIM 29.80 inHg

ELEV 186 FT

3.3829°S / 64.7241°W

LOCATION · Tefé, BR

WIND

300°3 kt

SBTF · 186 FT

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

METRIC

NOW · 20Z

+6H

+12H

+18H

WIND

300°/3

VIS

6+ SM

CEILING

—

LAYERS

FEW020

T / Td

34 / 24

ALTIM

29.80"

// Interpretation

VFR with light winds at 300°/3 kt. Visibility 6+ SM and a few at 2,000 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 SBTF 252000Z 30003KT 9999 FEW020 34/24 Q1009

SBTF · day 25 at 20:00 UTC · wind from 300° at 3 kt · visibility 6+ SM · a few clouds at 2,000 ft · temp 34°C / dewpoint 24°C · altimeter 29.80" Hg

// Runway analysis · computed from current METAR wind

Wind 300° @ 3 kt

ALL USABLE · WINDS CALM

WIND

300°3 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

15 HDG 150° —CALM —— 7,218'

33 HDG 330° —CALM —— 7,218'

Pattern altitude: 1,186 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 +20°C

2,700FT

+2,514 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV186 FT OAT+34°C ISA DELTA+20°C PRESSURE ALT310 FT

// Performance equivalent Operating here right now feels like operating at SBUR (Mário de Almeida Franco Airport, Uberaba, elev 2,655 ft) on a standard ISA day.

// Aircraft performance impact SIGNIFICANT

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+27%

-19%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+19%

-12%

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. 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 · 1 reported · highest to lowest

// Reported layers (highest → lowest)

FEW020

Few · base 2,000 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER2,000 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL17,358 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-4)

10:21ZSUNRISE

16:22ZSOLAR NOON

22:23ZSUNSET

22:44ZCIVIL END

CURRENT20:23Z DAYLIGHT REMAINING2h 00m VFR NIGHT BEGINS22:44Z (2h 21m) DAY LENGTH12h 01m

Waxing Gibbous

ILLUMINATION94% MOONRISE20:32Z MOONSET08:34Z FULL MOON IN2 days

// Nearest reporting stations

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

AIRSPACE

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