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// Station · 15m ago

KGCN

Grand Canyon National Park Airport
CAT VFR
WIND 100° / 3 kt
VIS 10+ SM
CEILING CLR
T/Td 9.4°C / -2.8°C
ALTIM 30.30 inHg
ELEV 6,609 FT
35.9524°N / 112.1470°W
LOCATION · Grand Canyon - Tusayan, US
N
WIND
100°3 kt
KGCN · 6,609 FT
© OSM · CartoDB

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

METRIC
NOW · 12Z
+6H
+12H
+18H
WIND
100°/3
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
9 / -3
 
 
 
ALTIM
30.30"
 
 
 

// Interpretation

VFR with light winds at 100°/3 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 KGCN 111254Z 10003KT 10SM CLR 09/M03 A3030 RMK AO2 SLP157 T00941028

KGCN · day 11 at 12:54 UTC · wind from 100° at 3 kt · visibility 10+ SM · temp 9°C / dewpoint -3°C · altimeter 30.30" Hg · automated station w/ precipitation discriminator · sea-level pressure 1015.7 mb

// Runway analysis · computed from current METAR wind

Wind 100° @ 3 kt
ALL USABLE · WINDS CALM
N
WIND
100°3 kt
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 +7°C

7,000FT
+391 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -1,100 FT
10,600 8,550 6,500
24h AGO18h12h6hNOW
FIELD ELEV6,609 FT OAT+9°C ISA DELTA+7°C PRESSURE ALT6,225 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 DANGEROUS
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+70%
-49%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+49%
-32%
Light jetCJ4, Phenom 300, M2
+28%
-21%

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 · 11,356 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 LEVEL11,356 ft VFR MARGINunlimited

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

12:22ZSUNRISE
19:35ZSOLAR NOON
02:48ZSUNSET
03:17ZCIVIL END
CURRENT13:09Z DAYLIGHT REMAINING13h 38m VFR NIGHT BEGINS03:17Z (14h 08m) DAY LENGTH14h 26m
Waning Crescent
ILLUMINATION11% MOONRISE09:43Z MOONSET00:10Z 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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