// Station · 1h 15m ago · STALE

SBMK

Mário Ribeiro Airport

CAT VFR

WIND 020° / 4 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 31°C / 12°C

ALTIM 30.03 inHg

ELEV 2,191 FT

16.7069°S / 43.8189°W

LOCATION · Montes Claros, BR

WIND

020°4 kt

SBMK · 2,191 FT

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

METRIC

NOW · 17Z

+6H

+12H

+18H

WIND

020°/4

VIS

6+ SM

CEILING

—

LAYERS

FEW030

T / Td

31 / 12

ALTIM

30.03"

// Interpretation

VFR with light winds at 020°/4 kt. Visibility 6+ SM and a few at 3,000 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 SBMK 251700Z 02004KT 9999 FEW030 31/12 Q1017

SBMK · day 25 at 17:00 UTC · wind from 020° at 4 kt · visibility 6+ SM · a few clouds at 3,000 ft · temp 31°C / dewpoint 12°C · altimeter 30.03" Hg

// Runway analysis · computed from current METAR wind

Wind 020° @ 4 kt

ALL USABLE · WINDS CALM

WIND

020°4 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

12 HDG 120° —CALM —— 6,890'

30 HDG 300° —CALM —— 6,890'

Pattern altitude: 3,191 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

4,500FT

+2,309 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↗ +0 FT

24h AGO18h12h6hNOW

FIELD ELEV2,191 FT OAT+31°C ISA DELTA+20°C PRESSURE ALT2,079 FT

// Performance equivalent Operating here right now feels like operating at SBPC (Poços de Caldas - Embaixador Walther Moreira Salles Airport, Poços De Caldas, elev 4,138 ft) on a standard ISA day.

// Aircraft performance impact SIGNIFICANT

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+45%

-32%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+32%

-20%

Light jetCJ4, Phenom 300, M2

+18%

-14%

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)

FEW030

Few · base 3,000 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER3,000 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL17,848 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-3)

09:08ZSUNRISE

14:58ZSOLAR NOON

20:49ZSUNSET

21:11ZCIVIL END

CURRENT18:15Z DAYLIGHT REMAINING2h 33m VFR NIGHT BEGINS21:11Z (2h 55m) DAY LENGTH11h 40m

Waxing Gibbous

ILLUMINATION94% MOONRISE19:14Z MOONSET06:55Z 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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