// Station · 2m ago

KBYG

Johnson County Airport

CAT VFR

WIND VRB / 4 kt

VIS 10+ SM

CEILING CLR

T/Td 36.1°C / -0.6°C

ALTIM 30.11 inHg

ELEV 4,968 FT

44.3811°N / 106.7220°W

LOCATION · Buffalo, US

WIND

VRB4 kt

KBYG · 4,968 FT

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

METRIC

NOW · 23Z

+6H

+12H

+18H

WIND

VRB/4

VIS

10+ SM

CEILING

CLR

LAYERS

—

T / Td

36 / -1

ALTIM

30.11"

// Interpretation

VFR with light winds at variable/4 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 142353Z AUTO VRB04KT 10SM CLR 36/M01 A3011 RMK AO2 SLP117 T03611006 10378 20328 56014

KBYG · day 14 at 23:53 UTC · wind variable at 4 kt · visibility 10+ SM · temp 36°C / dewpoint -1°C · altimeter 30.11" Hg · automated station w/ precipitation discriminator · sea-level pressure 1011.7 mb

// Runway analysis · computed from current METAR wind

Wind VRB @ 4 kt

ALL USABLE · WINDS CALM

WIND

VRB4 kt

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 +31°C

8,400FT

+3,432 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↗ +700 FT

24h AGO18h12h6hNOW

FIELD ELEV4,968 FT OAT+36°C ISA DELTA+31°C PRESSURE ALT4,776 FT

// Performance equivalent Operating here right now feels like operating at KGNB (Granby Grand County Airport, Granby, elev 8,203 ft) on a standard ISA day.

// Aircraft performance impact DANGEROUS

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+84%

-59%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+59%

-38%

Light jetCJ4, Phenom 300, M2

+34%

-25%

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 · 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 LEVEL23,200 ft VFR MARGINunlimited

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

11:36ZSUNRISE

19:13ZSOLAR NOON

02:50ZSUNSET

03:26ZCIVIL END

CURRENT23:55Z DAYLIGHT REMAINING2h 54m VFR NIGHT BEGINS03:26Z (3h 30m) DAY LENGTH15h 13m

New Moon

ILLUMINATION0% MOONRISE11:46Z MOONSET03:00Z FULL MOON IN15 days

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

KSHR

VFR

Sheridan County Airport · Sheridan

WIND: 070° / 7 kt
VIS: 10+ SM
CEILING: CLR
DIST: 26 NM NW
AGE: 1h 2m ago

KGCC

VFR

Northeast Wyoming Regional Airport · Gillette

WIND: 140° / 13 ktG20
VIS: 10+ SM
CEILING: CLR
DIST: 51 NM E
AGE: 2m ago

KWRL

VFR

Worland Municipal Airport · Worland

WIND: 360° / 7 kt
VIS: 10+ SM
CEILING: CLR
DIST: 59 NM SW
AGE: 1h 2m ago

KGEY

VFR

South Big Horn County Airport · Greybull

WIND: 040° / 7 kt
VIS: 10+ SM
CEILING: CLR
DIST: 59 NM W
AGE: 2m ago

KU68

VFR

North Big Horn County Airport · Cowley

WIND: 230° / 4 kt
VIS: 10+ SM
CEILING: CLR
DIST: 80 NM NW
AGE: 20m ago

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

AIRSPACE

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