// Station · 23m ago

KBDU

Boulder Municipal Airport

CAT VFR

WIND 210° / 3 kt

VIS 10+ SM

CEILING Few/scattered only

T/Td 28°C / 8°C

ALTIM 30.12 inHg

ELEV 5,288 FT

40.0391°N / 105.2260°W

LOCATION · Boulder, US

WIND

210°3 kt

KBDU · 5,288 FT

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

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

210°/3

VIS

10+ SM

CEILING

—

LAYERS

SCT120

T / Td

28 / 8

ALTIM

30.12"

// Interpretation

VFR with light winds at 210°/3 kt. Visibility better than 10 statute miles and scattered at 12,000 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 KBDU 290055Z AUTO 21003KT 10SM SCT120 28/08 A3012 RMK AO2

KBDU · day 29 at 00:55 UTC · wind from 210° at 3 kt · visibility 10+ SM · scattered layer at 12,000 ft · temp 28°C / dewpoint 8°C · altimeter 30.12" Hg · automated station w/ precipitation discriminator

// Runway analysis · computed from current METAR wind

Wind 210° @ 3 kt

ALL USABLE · WINDS CALM

WIND

210°3 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 4 ends

08 HDG 080° —CALM —— 4,100'

26 HDG 260° —CALM —— 4,100'

08G HDG 080° —CALM —— 4,100'

26G HDG 260° —CALM —— 4,100'

Pattern altitude: 6,288 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 +23°C

7,900FT

+2,612 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV5,288 FT OAT+28°C ISA DELTA+23°C PRESSURE ALT5,084 FT

// Performance equivalent Operating here right now feels like operating at KAEJ (Central Colorado Regional Airport, Buena Vista, elev 7,946 ft) on a standard ISA day.

// Aircraft performance impact SIGNIFICANT

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+79%

-55%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+55%

-36%

Light jetCJ4, Phenom 300, M2

+32%

-24%

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)

SCT120

Scattered · base 12,000 ft AGL · ~3–4 oktas

// Computed

CEILING— HIGHEST LAYER12,000 ft TOTAL COVERAGE~40% (mixed) FREEZING LEVEL19,429 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-7)

12:26ZSUNRISE

19:03ZSOLAR NOON

01:41ZSUNSET

02:09ZCIVIL END

CURRENT01:18Z DAYLIGHT REMAINING22m VFR NIGHT BEGINS02:09Z (50m) DAY LENGTH13h 14m

Waning Gibbous

ILLUMINATION99% MOONRISE01:13Z MOONSET14:28Z FULL MOON IN29 days

// Nearest reporting stations

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

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