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// Station · 20m ago

KWYS

Yellowstone Airport
CAT VFR
WIND CALM
VIS 10+ SM
CEILING CLR
T/Td 15°C / —
ALTIM 30.26 inHg
ELEV 6,649 FT
44.6884°N / 111.1180°W
LOCATION · West Yellowstone, US
N
WIND
000°0 kt
KWYS · 6,649 FT
© OSM · CartoDB

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

METRIC
NOW · 14Z
+6H
+12H
+18H
WIND
CALM
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
 
 
 
ALTIM
30.26"
 
 
 

// 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 KWYS 111455Z AUTO 00000KT 10SM CLR 15/ A3026 RMK AO2

KWYS · day 11 at 14:55 UTC · winds calm · visibility 10+ SM · altimeter 30.26" Hg · automated station w/ precipitation discriminator

// Runway analysis · computed from current METAR wind

Wind CALM
ALL USABLE · WINDS CALM
N
WIND
000°calm
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS 2 ends
01 HDG 010° CALM 8,400'
19 HDG 190° CALM 8,400'
Pattern altitude: 7,649 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 +12°C

7,800FT
+1,151 FT ABOVE FIELD ELEV
FIELD ELEV6,649 FT OAT+15°C ISA DELTA+12°C PRESSURE ALT6,307 FT
// Performance equivalent Operating here right now feels like operating at KASE (Aspen-Pitkin County Airport (Sardy Field), Aspen, elev 7,820 ft) on a standard ISA day.
// Aircraft performance impact DANGEROUS
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+78%
-55%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+55%
-35%
Light jetCJ4, Phenom 300, M2
+31%
-23%

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

FT 0 5k 10k 15k 20k 25k FRZ LVL · 14,225 FT KWYS ELEV · 6,649 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL14,225 ft VFR MARGINunlimited

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

11:50ZSUNRISE
19:31ZSOLAR NOON
03:11ZSUNSET
03:47ZCIVIL END
CURRENT15:15Z DAYLIGHT REMAINING11h 55m VFR NIGHT BEGINS03:47Z (12h 31m) DAY LENGTH15h 20m
Waning Crescent
ILLUMINATION11% MOONRISE09:16Z MOONSET00:37Z FULL MOON IN18 days

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

// Area map · 80 NM radius · CartoDB Dark Matter + aeronautical overlay

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