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// Station · 16m ago

KGOO

Nevada County Airport
CAT VFR
WIND 260° / 5 kt
VIS 10+ SM
CEILING Few/scattered only
T/Td 17°C / 9°C
ALTIM 30.14 inHg
ELEV 3,152 FT
39.2240°N / 121.0030°W
LOCATION · Grass Valley, US
N
WIND
260°5 kt
KGOO · 3,152 FT
© OSM · CartoDB

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

METRIC
NOW · 19Z
+6H
+12H
+18H
WIND
260°/5
 
 
 
VIS
10+ SM
 
 
 
CEILING
 
 
 
LAYERS
SCT033 SCT046
 
 
 
T / Td
17 / 9
 
 
 
ALTIM
30.14"
 
 
 

// Interpretation

VFR with light winds at 260°/5 kt. Visibility better than 10 statute miles and scattered at 3,300 ft, and scattered at 4,600 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 KGOO 301910Z AUTO 26005KT 10SM SCT033 SCT046 17/09 A3014 RMK A01

KGOO · day 30 at 19:10 UTC · wind from 260° at 5 kt · visibility 10+ SM · scattered layer at 3,300 ft · scattered layer at 4,600 ft · temp 17°C / dewpoint 9°C · altimeter 30.14" Hg

// Runway analysis · computed from current METAR wind

Wind 260° @ 5 kt
1 USABLE · 1 AVOID
N
WIND
260°5 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
25 HDG 250° H5 kt X1 kt RIGHT PRIMARY · 4,657'
TAILWIND ENDS · AVOID 1 ends
07 HDG 070° T5 kt X1 kt LEFT
Pattern altitude: 4,152 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 +8°C

3,900FT
+748 FT ABOVE FIELD ELEV
FIELD ELEV3,152 FT OAT+17°C ISA DELTA+8°C PRESSURE ALT2,931 FT
// Performance equivalent Operating here right now feels like operating at KTSP (Tehachapi Municipal Airport, Tehachapi, elev 4,001 ft) on a standard ISA day.
// Aircraft performance impact SIGNIFICANT
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+39%
-27%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+27%
-18%
Light jetCJ4, Phenom 300, M2
+16%
-12%

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 · 2 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 11,738 FT SCT033 SCT046 KGOO ELEV · 3,152 FT
// Reported layers (highest → lowest)
SCT046
Scattered · base 4,600 ft AGL · ~3–4 oktas
SCT033
Scattered · base 3,300 ft AGL · ~3–4 oktas
// Computed
CEILING HIGHEST LAYER4,600 ft TOTAL COVERAGE~48% (mixed) FREEZING LEVEL11,738 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-8)

12:41ZSUNRISE
20:03ZSOLAR NOON
03:24ZSUNSET
03:55ZCIVIL END
CURRENT19:26Z DAYLIGHT REMAINING7h 57m VFR NIGHT BEGINS03:55Z (8h 29m) DAY LENGTH14h 42m
Full Moon
ILLUMINATION99% MOONRISE00:08Z MOONSET14:50Z FULL MOON IN1 day

// Nearest reporting stations · 5 shown · 60 NM radius

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

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