// Station · 8m ago

KBYG

Johnson County Airport

CAT VFR

WIND CALM

VIS 10+ SM

CEILING BKN at 6,000 ft

T/Td 22.8°C / 7.2°C

ALTIM 29.81 inHg

ELEV 4,968 FT

44.3811°N / 106.7220°W

LOCATION · Buffalo, US

WIND

000°0 kt

KBYG · 4,968 FT

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

METRIC

NOW · 20Z

+6H

+12H

+18H

WIND

CALM

VIS

10+ SM

CEILING

BKN060

LAYERS

BKN060 BKN075 BKN110

T / Td

23 / 7

ALTIM

29.81"

// Interpretation

VFR — ceiling 6,000 ft. Winds calm, visibility better than 10 statute miles, broken at 6,000 ft, broken at 7,500 ft, and broken at 11,000 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 KBYG 302053Z AUTO 00000KT 10SM BKN060 BKN075 BKN110 23/07 A2981 RMK AO2 LTG DSNT E SLP039 T02280072 56010

KBYG · day 30 at 20:53 UTC · winds calm · visibility 10+ SM · broken layer at 6,000 ft · broken layer at 7,500 ft · broken layer at 11,000 ft · temp 23°C / dewpoint 7°C · altimeter 29.81" Hg · automated station w/ precipitation discriminator · sea-level pressure 1003.9 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 2 ends

13 HDG 130° —CALM —— 6,143'

31 HDG 310° —CALM —— 6,143'

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 +18°C

7,200FT

+2,232 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↗ +200 FT

24h AGO18h12h6hNOW

FIELD ELEV4,968 FT OAT+23°C ISA DELTA+18°C PRESSURE ALT5,075 FT

// Performance equivalent Operating here right now feels like operating at KEVW (Evanston-Uinta County Airport-Burns Field, Evanston, elev 7,143 ft) on a standard ISA day.

// Aircraft performance impact DANGEROUS

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+72%

-50%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+50%

-32%

Light jetCJ4, Phenom 300, M2

+29%

-22%

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.

// Cloud layers · 3 reported · highest to lowest

// Reported layers (highest → lowest)

BKN110

Broken · base 11,000 ft AGL · ~5–7 oktas

BKN075

Broken · base 7,500 ft AGL · ~5–7 oktas

BKN060

Broken · base 6,000 ft AGL · ~5–7 oktas

// Computed

CEILING6,000 ft AGL HIGHEST LAYER11,000 ft TOTAL COVERAGE~91% (overcast) FREEZING LEVEL16,483 ft VFR MARGIN+3,000 ft

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

11:28ZSUNRISE

19:05ZSOLAR NOON

02:43ZSUNSET

03:19ZCIVIL END

CURRENT21:01Z DAYLIGHT REMAINING5h 41m VFR NIGHT BEGINS03:19Z (6h 17m) DAY LENGTH15h 15m

Full Moon

ILLUMINATION100% MOONRISE22:58Z MOONSET14:13Z FULL MOON IN1 day

// Nearest reporting stations · 5 shown · 100 NM (sparse area)

KSHR

VFR → MVFR 03Z

Sheridan County Airport · Sheridan

WIND: CALM
VIS: 10+ SM
CEILING: OVC055
DIST: 26 NM NW
AGE: 8m ago

KGCC

VFR → MVFR 11Z

Northeast Wyoming Regional Airport · Gillette

WIND: 210° / 9 kt
VIS: 10+ SM
CEILING: BKN080
DIST: 51 NM E
AGE: 8m ago

KWRL

VFR → MVFR 11Z

Worland Municipal Airport · Worland

WIND: CALM
VIS: 10+ SM
CEILING: BKN110
DIST: 59 NM SW
AGE: 8m ago

KGEY

VFR

South Big Horn County Airport · Greybull

WIND: VRB / 3 kt
VIS: 10+ SM
CEILING: FEW039
DIST: 59 NM W
AGE: 8m ago

KU68

VFR

North Big Horn County Airport · Cowley

WIND: CALM
VIS: 10+ SM
CEILING: BKN070
DIST: 80 NM NW
AGE: 6m ago

// Area map · 100 NM radius · CartoDB Dark Matter + aeronautical overlay

AIRSPACE

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