// Station · 17m ago

KBZN

Bozeman Yellowstone International Airport

CAT VFR

WIND CALM

VIS 10+ SM

CEILING CLR

T/Td 20°C / 6.1°C

ALTIM 30.31 inHg

ELEV 4,473 FT

45.7788°N / 111.1537°W

LOCATION · Bozeman, US

WIND

000°0 kt

KBZN · 4,473 FT

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

METRIC

NOW · 17Z

+6H

+12H

+18H

WIND

CALM

VIS

10+ SM

CEILING

CLR

LAYERS

—

T / Td

20 / 6

ALTIM

30.31"

// Interpretation

VFR with winds calm. Visibility better than 10 statute miles and no reported cloud layers. 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 KBZN 251756Z 00000KT 10SM CLR 20/06 A3031 RMK AO2 RAB02E15 SLP233 P0000 60000 T02000061 10206 20106 58004

KBZN · day 25 at 17:56 UTC · winds calm · visibility 10+ SM · temp 20°C / dewpoint 6°C · altimeter 30.31" Hg · automated station w/ precipitation discriminator · sea-level pressure 1023.3 mb

// 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 8 ends

12 HDG 120° —CALM —— 8,994'

30 HDG 300° —CALM —— 8,994'

11 HDG 110° —CALM —— 5,050'

29 HDG 290° —CALM —— 5,050'

11G HDG 110° —CALM —— 2,802'

29G HDG 290° —CALM —— 2,802'

03 HDG 030° —CALM —— 2,650'

21 HDG 210° —CALM —— 2,650'

Pattern altitude: 5,473 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 +13°C

5,600FT

+1,127 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV4,473 FT OAT+20°C ISA DELTA+13°C PRESSURE ALT4,080 FT

// Performance equivalent Operating here right now feels like operating at KBTM (Bert Mooney Airport, Butte, elev 5,550 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+56%

-39%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+39%

-25%

Light jetCJ4, Phenom 300, M2

+22%

-17%

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 · clear · no layers reported

// Reported layers (highest → lowest)

CLR

No reported cloud layers — clear sky from surface to reporting ceiling.

// Computed

CEILING— HIGHEST LAYER— TOTAL COVERAGEclear FREEZING LEVEL14,574 ft VFR MARGINunlimited

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

12:38ZSUNRISE

19:28ZSOLAR NOON

02:17ZSUNSET

02:49ZCIVIL END

CURRENT18:13Z DAYLIGHT REMAINING8h 04m VFR NIGHT BEGINS02:49Z (8h 35m) DAY LENGTH13h 39m

Waxing Gibbous

ILLUMINATION94% MOONRISE22:44Z MOONSET12:24Z 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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