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// Station · 16m ago

KS39

Prineville Airport
CAT VFR
WIND 360° / 11 kt
VIS 10+ SM
CEILING Few/scattered only
T/Td 32°C / 3°C
ALTIM 30.08 inHg
ELEV 3,250 FT
44.2870°N / 120.9040°W
LOCATION · Prineville, US
N
WIND
360°11 kt
KS39 · 3,250 FT
© OSM · CartoDB

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

METRIC
NOW · 21Z
+6H
+12H
+18H
WIND
360°/11
 
 
 
VIS
10+ SM
 
 
 
CEILING
 
 
 
LAYERS
SCT110
 
 
 
T / Td
32 / 3
 
 
 
ALTIM
30.08"
 
 
 

// Interpretation

VFR with moderate winds at 360°/11 kt. Visibility better than 10 statute miles and scattered at 11,000 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 KS39 142155Z AUTO 36011KT 330V030 10SM SCT110 32/03 A3008 RMK AO2

KS39 · day 14 at 21:55 UTC · wind from 360° at 11 kt · visibility 10+ SM · scattered layer at 11,000 ft · temp 32°C / dewpoint 3°C · altimeter 30.08" Hg · automated station w/ precipitation discriminator

// Runway analysis · computed from current METAR wind

Wind 360° @ 11 kt
2 USABLE · 2 AVOID · 1 CAUTION
N
WIND
360°11 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 2 usable
33 HDG 330° H10 kt X5 kt RIGHT PRIMARY · 4,031'
29 HDG 290° H4 kt X10 kt RIGHT ⚠ HIGH XW · 91%
TAILWIND ENDS · AVOID 2 ends
11 HDG 110° T4 kt X10 kt LEFT
15 HDG 150° T10 kt X6 kt LEFT
Pattern altitude: 4,250 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 +23°C

5,900FT
+2,650 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -300 FT
6,600 5,150 3,700
24h AGO18h12h6hNOW
FIELD ELEV3,250 FT OAT+32°C ISA DELTA+23°C PRESSURE ALT3,088 FT
// Performance equivalent Operating here right now feels like operating at KTRK (Truckee Tahoe Airport, Truckee, elev 5,900 ft) on a standard ISA day.
// Aircraft performance impact SIGNIFICANT
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+59%
-41%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+41%
-27%
Light jetCJ4, Phenom 300, M2
+24%
-18%

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 · 1 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 19,412 FT SCT110 KS39 ELEV · 3,250 FT
// Reported layers (highest → lowest)
SCT110
Scattered · base 11,000 ft AGL · ~3–4 oktas
// Computed
CEILING HIGHEST LAYER11,000 ft TOTAL COVERAGE~40% (mixed) FREEZING LEVEL19,412 ft VFR MARGINunlimited

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

12:33ZSUNRISE
20:10ZSOLAR NOON
03:47ZSUNSET
04:22ZCIVIL END
CURRENT22:11Z DAYLIGHT REMAINING5h 35m VFR NIGHT BEGINS04:22Z (6h 11m) DAY LENGTH15h 13m
New Moon
ILLUMINATION0% MOONRISE12:40Z MOONSET03:53Z FULL MOON IN15 days

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

// Area map · 100 NM radius · CartoDB Dark Matter + aeronautical overlay

© OpenStreetMap · CartoDB · OpenAIP
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