// Station · 21h 2m ago · STALE · HARD STALE

SLVM

Teniente Coronel Rafael Pabón Airport

CAT MVFR

WIND CALM

VIS 6+ SM

CEILING BKN at 2,500 ft

T/Td 29°C / 16°C

ALTIM 29.74 inHg

ELEV 1,305 FT

21.2552°S / 63.4056°W

LOCATION · Villamontes, BO

WIND

000°0 kt

SLVM · 1,305 FT

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

METRIC

NOW · 20Z

+6H

+12H

+18H

WIND

CALM

VIS

6+ SM

CEILING

BKN025

LAYERS

BKN025

T / Td

29 / 16

ALTIM

29.74"

// Interpretation

MVFR — ceiling 2,500 ft. Winds calm, visibility 6+ SM, broken at 2,500 ft. Would drop to IFR below 1,000 ft ceiling or 3 SM visibility, or rise back to VFR above 3,000 ft and 5 SM.

Loading TAF forecast narrative…

SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR SLVM 102000Z 00000KT 9999 BKN025 29/16 Q1007

SLVM · day 10 at 20:00 UTC · winds calm · visibility 6+ SM · broken layer at 2,500 ft · temp 29°C / dewpoint 16°C · altimeter 29.74" Hg

// Runway analysis · computed from current METAR wind

Wind CALM

ALL USABLE · WINDS CALM

WIND

000°calm

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

18 HDG 180° —CALM —— 4,918'

36 HDG 360° —CALM —— 4,918'

Pattern altitude: 2,305 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 +17°C

3,500FT

+2,195 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↗ +200 FT

24h AGO18h12h6hNOW

FIELD ELEV1,305 FT OAT+29°C ISA DELTA+17°C PRESSURE ALT1,488 FT

// Performance equivalent Your aircraft will perform as if it's at a field 3,500 ft high on a standard ISA day — that's +2,195 ft above SLVM's actual elevation.

// Aircraft performance impact SIGNIFICANT

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+35%

-25%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+25%

-16%

Light jetCJ4, Phenom 300, M2

+14%

-11%

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 · 1 reported · highest to lowest

// Reported layers (highest → lowest)

BKN025

Broken · base 2,500 ft AGL · ~5–7 oktas

// Computed

CEILING2,500 ft AGL HIGHEST LAYER2,500 ft TOTAL COVERAGE~75% (mostly covered) FREEZING LEVEL15,951 ft VFR MARGIN-500 ft

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

10:52ZSUNRISE

16:20ZSOLAR NOON

21:47ZSUNSET

22:11ZCIVIL END

CURRENT17:02Z DAYLIGHT REMAINING4h 44m VFR NIGHT BEGINS22:11Z (5h 08m) DAY LENGTH10h 55m

Waning Crescent

ILLUMINATION10% MOONRISE08:22Z MOONSET19:17Z FULL MOON IN18 days

// Nearest reporting stations · 2 shown · 100 NM (sparse area)

SLTJ

VFR

Capitan Oriel Lea Plaza Airport · Tarija

WIND: 090° / 4 kt
VIS: 6+ SM
CEILING: SCT025
DIST: 75 NM W
AGE: 2m ago

SLCA

VFR

Camiri Airport · Camiri

WIND: 180° / 3 kt
VIS: 6+ SM
CEILING: BKN034
DIST: 75 NM N
AGE: 1h 2m ago

// Area map · 80 NM radius · CartoDB Dark Matter + aeronautical overlay

AIRSPACE

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