// Station · 24m ago

KBYG

Johnson County Airport

CAT VFR

WIND 340° / 8 kt

VIS 10+ SM

CEILING CLR

T/Td 21.1°C / 10°C

ALTIM 30.04 inHg

ELEV 4,968 FT

44.3811°N / 106.7220°W

LOCATION · Buffalo, US

WIND

340°8 kt

KBYG · 4,968 FT

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

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

340°/8

VIS

10+ SM

CEILING

CLR

LAYERS

—

T / Td

21 / 10

ALTIM

30.04"

// Interpretation

VFR with moderate winds at 340°/8 kt. 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 KBYG 290053Z AUTO 34008KT 10SM CLR 21/10 A3004 RMK AO2 SLP116 T02110100 $

KBYG · day 29 at 00:53 UTC · wind from 340° at 8 kt · visibility 10+ SM · temp 21°C / dewpoint 10°C · altimeter 30.04" Hg · automated station w/ precipitation discriminator · sea-level pressure 1011.6 mb

// Runway analysis · computed from current METAR wind

Wind 340° @ 8 kt

1 USABLE · 1 AVOID

WIND

340°8 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

31★ HDG 310° H7 kt X4 kt RIGHT PRIMARY · 6,143'

TAILWIND ENDS · AVOID 1 ends

13 HDG 130° T7 kt X4 kt LEFT —

Pattern altitude: 5,968 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 +16°C

6,700FT

+1,732 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV4,968 FT OAT+21°C ISA DELTA+16°C PRESSURE ALT4,844 FT

// Performance equivalent Operating here right now feels like operating at KRKS (Southwest Wyoming Regional Airport, Rock Springs, elev 6,764 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+67%

-47%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+47%

-30%

Light jetCJ4, Phenom 300, M2

+27%

-20%

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 LEVEL15,625 ft VFR MARGINunlimited

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

12:26ZSUNRISE

19:09ZSOLAR NOON

01:52ZSUNSET

02:23ZCIVIL END

CURRENT01:17Z DAYLIGHT REMAINING35m VFR NIGHT BEGINS02:23Z (1h 05m) DAY LENGTH13h 26m

Waning Gibbous

ILLUMINATION99% MOONRISE01:13Z MOONSET14:39Z FULL MOON IN29 days

// Nearest reporting stations

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

AIRSPACE

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