// Station · 10m ago

KBTM

Bert Mooney Airport

CAT MVFR

WIND 320° / 6 kt

VIS 10+ SM

CEILING OVC at 2,000 ft

T/Td 0.6°C / -2.2°C

ALTIM 29.98 inHg

ELEV 5,550 FT

45.9548°N / 112.4970°W

LOCATION · Butte, US

WIND

320°6 kt

KBTM · 5,550 FT

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

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

320°/6

VIS

10+ SM

CEILING

OVC020

LAYERS

OVC020

T / Td

1 / -2

ALTIM

29.98"

// Interpretation

MVFR — ceiling 2,000 ft. Light winds at 320°/6 kt, visibility better than 10 statute miles, overcast at 2,000 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 KBTM 130053Z AUTO 32006KT 10SM OVC020 01/M02 A2998 RMK AO2 SLP181 T00061022

KBTM · day 13 at 00:53 UTC · wind from 320° at 6 kt · visibility 10+ SM · overcast at 2,000 ft · temp 1°C / dewpoint -2°C · altimeter 29.98" Hg · automated station w/ precipitation discriminator · sea-level pressure 1018.1 mb

// Runway analysis · computed from current METAR wind

Wind 320° @ 6 kt

2 USABLE · 2 AVOID

WIND

320°6 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

33★ HDG 330° H6 kt X1 kt LEFT PRIMARY · 9,000'

30 HDG 300° H6 kt X2 kt RIGHT 5,100'

TAILWIND ENDS · AVOID 2 ends

12 HDG 120° T6 kt X2 kt LEFT —

15 HDG 150° T6 kt X1 kt RIGHT —

Pattern altitude: 6,550 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 -4°C

5,100FT

-450 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV5,550 FT OAT+1°C ISA DELTA-4°C PRESSURE ALT5,488 FT

// Performance equivalent Operating here right now feels like operating at K7S6 (White Sulphur Springs Airport, White Sulphur Springs, elev 5,061 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+51%

-36%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+36%

-23%

Light jetCJ4, Phenom 300, M2

+20%

-15%

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)

OVC020

Overcast · base 2,000 ft AGL · 8 oktas

// Computed

CEILING2,000 ft AGL HIGHEST LAYER2,000 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL5,853 ft VFR MARGIN-1,000 ft

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

13:43ZSUNRISE

19:17ZSOLAR NOON

00:51ZSUNSET

01:21ZCIVIL END

CURRENT01:03Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS01:21Z (18m) DAY LENGTH11h 07m

Waxing Crescent

ILLUMINATION3% MOONRISE15:04Z MOONSET02:12Z FULL MOON IN13 days

// Nearest reporting stations

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

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