// Station · 8h 13m ago · STALE · HARD STALE

SERB

Chimborazo Airport

CAT VFR

WIND 030° / 13 kt

VIS 6+ SM

CEILING BKN at 3,300 ft

T/Td 20°C / 7°C

ALTIM 30.39 inHg

ELEV 9,151 FT

1.6533°S / 78.6563°W

LOCATION · Riobamba, EC

WIND

030°13 kt

SERB · 9,151 FT

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

METRIC

NOW · 21Z

+6H

+12H

+18H

WIND

030°/13

VIS

6+ SM

CEILING

BKN033

LAYERS

BKN033

T / Td

20 / 7

ALTIM

30.39"

// Interpretation

VFR — ceiling 3,300 ft. Brisk winds at 030°/13 kt, visibility 6+ SM, broken at 3,300 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 SERB 282100Z 03013KT 9999 BKN033 20/07 Q1029 RMK A3040

SERB · day 28 at 21:00 UTC · wind from 030° at 13 kt · visibility 6+ SM · broken layer at 3,300 ft · temp 20°C / dewpoint 7°C · altimeter 30.39" Hg

// Runway analysis · computed from current METAR wind

Wind 030° @ 13 kt

1 USABLE · 1 AVOID

WIND

030°13 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

05★ HDG 050° H12 kt X4 kt LEFT PRIMARY · 5,250'

TAILWIND ENDS · AVOID 1 ends

23 HDG 230° T12 kt X4 kt RIGHT —

Pattern altitude: 10,151 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 +22°C

11,300FT

+2,149 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV9,151 FT OAT+20°C ISA DELTA+22°C PRESSURE ALT8,685 FT

// Performance equivalent Your aircraft will perform as if it's at a field 11,300 ft high on a standard ISA day — that's +2,149 ft above SERB's actual elevation.

// Aircraft performance impact DANGEROUS

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+113%

-79%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+79%

-51%

Light jetCJ4, Phenom 300, M2

+45%

-34%

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)

BKN033

Broken · base 3,300 ft AGL · ~5–7 oktas

// Computed

CEILING3,300 ft AGL HIGHEST LAYER3,300 ft TOTAL COVERAGE~75% (mostly covered) FREEZING LEVEL19,252 ft VFR MARGIN+300 ft

// Sun & Moon · times in Z · bar = local day (UTC-5)

11:14ZSUNRISE

17:17ZSOLAR NOON

23:19ZSUNSET

23:40ZCIVIL END

CURRENT05:13Z DAYLIGHT REMAINING18h 05m VFR NIGHT BEGINS23:40Z (18h 26m) DAY LENGTH12h 04m

Waning Gibbous

ILLUMINATION99% MOONRISE00:09Z MOONSET12:14Z FULL MOON IN28 days

// Nearest reporting stations

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

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