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// Station · 12m ago

KGCN

Grand Canyon National Park Airport
CAT VFR
WIND CALM
VIS 10+ SM
CEILING CLR
T/Td 12.8°C / 7.8°C
ALTIM 30.42 inHg
ELEV 6,609 FT
35.9524°N / 112.1470°W
LOCATION · Grand Canyon - Tusayan, US
N
WIND
000°0 kt
KGCN · 6,609 FT
© OSM · CartoDB

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

METRIC
NOW · 13Z
+6H
+12H
+18H
WIND
CALM
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
13 / 8
 
 
 
ALTIM
30.42"
 
 
 

// 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 KGCN 251354Z 00000KT 10SM CLR 13/08 A3042 RMK AO2 SLP212 T01280078 $

KGCN · day 25 at 13:54 UTC · winds calm · visibility 10+ SM · temp 13°C / dewpoint 8°C · altimeter 30.42" Hg · automated station w/ precipitation discriminator · sea-level pressure 1021.2 mb

// 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
03 HDG 030° CALM 8,999'
21 HDG 210° CALM 8,999'
Pattern altitude: 7,609 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 +10°C

7,300FT
+691 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS loading…
FIELD ELEV6,609 FT OAT+13°C ISA DELTA+10°C PRESSURE ALT6,107 FT
// Performance equivalent Operating here right now feels like operating at KFLG (Flagstaff Pulliam Airport, Flagstaff, elev 7,014 ft) on a standard ISA day.
// Aircraft performance impact MODERATE
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+73%
-51%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+51%
-33%
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. 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

FT 0 5k 10k 15k 20k 25k FRZ LVL · 13,074 FT KGCN ELEV · 6,609 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL13,074 ft VFR MARGINunlimited

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

12:56ZSUNRISE
19:32ZSOLAR NOON
02:07ZSUNSET
02:34ZCIVIL END
CURRENT14:06Z DAYLIGHT REMAINING12h 01m VFR NIGHT BEGINS02:34Z (12h 27m) DAY LENGTH13h 11m
Waxing Gibbous
ILLUMINATION93% MOONRISE22:54Z MOONSET12:05Z FULL MOON IN3 days

// Nearest reporting stations

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

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