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// Station · 22m ago

K05U

Eureka Airport
CAT VFR
WIND CALM
VIS 9.0 SM
CEILING Few/scattered only
T/Td 19°C / 17°C
ALTIM 30.30 inHg
ELEV 5,954 FT
39.6042°N / 116.0050°W
LOCATION · Eureka, US
N
WIND
000°0 kt
K05U · 5,954 FT
© OSM · CartoDB

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

METRIC
NOW · 23Z
+6H
+12H
+18H
WIND
CALM
 
 
 
VIS
9.0 SM
 
 
 
CEILING
 
 
 
LAYERS
FEW034 FEW080 SCT100
 
 
 
T / Td
19 / 17
 
 
 
ALTIM
30.30"
 
 
 

// Interpretation

VFR with winds calm. Visibility 9.0 SM and a few at 3,400 ft, a few at 8,000 ft, and scattered at 10,000 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 K05U 142335Z AUTO 00000KT 9SM FEW034 FEW080 SCT100 19/17 A3030 RMK A01

K05U · day 14 at 23:35 UTC · winds calm · visibility 9.0 SM · a few clouds at 3,400 ft · a few clouds at 8,000 ft · scattered layer at 10,000 ft · temp 19°C / dewpoint 17°C · altimeter 30.30" Hg

// 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
17 HDG 170° CALM 7,300'
35 HDG 350° CALM 7,300'
Pattern altitude: 6,954 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 +15°C

7,400FT
+1,446 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -900 FT
8,700 7,650 6,600
24h AGO18h12h6hNOW
FIELD ELEV5,954 FT OAT+19°C ISA DELTA+15°C PRESSURE ALT5,570 FT
// Performance equivalent Operating here right now feels like operating at KEMM (Kemmerer Municipal Airport, Kemmerer, elev 7,285 ft) on a standard ISA day.
// Aircraft performance impact DANGEROUS
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+74%
-52%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+52%
-33%
Light jetCJ4, Phenom 300, M2
+30%
-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.

// Cloud layers · 3 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 15,550 FT FEW034 FEW080 SCT100 K05U ELEV · 5,954 FT
// Reported layers (highest → lowest)
SCT100
Scattered · base 10,000 ft AGL · ~3–4 oktas
FEW080
Few · base 8,000 ft AGL · ~1–2 oktas
FEW034
Few · base 3,400 ft AGL · ~1–2 oktas
// Computed
CEILING HIGHEST LAYER10,000 ft TOTAL COVERAGE~56% (mixed) FREEZING LEVEL15,550 ft VFR MARGINunlimited

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

12:29ZSUNRISE
19:50ZSOLAR NOON
03:12ZSUNSET
03:44ZCIVIL END
CURRENT23:57Z DAYLIGHT REMAINING3h 15m VFR NIGHT BEGINS03:44Z (3h 46m) DAY LENGTH14h 43m
New Moon
ILLUMINATION0% MOONRISE12:39Z MOONSET03:22Z FULL MOON IN15 days

// Nearest reporting stations · 5 shown · 150 NM (sparse area)

// Area map · 120 NM radius · CartoDB Dark Matter + aeronautical overlay

© OpenStreetMap · CartoDB · OpenAIP
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