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// KS39 · Prineville Airport · Prineville

// Station · 11m ago

KS39

Prineville Airport
CAT VFR
WIND 330° / 10 kt G17
VIS 10+ SM
CEILING CLR
T/Td 26°C / 2°C
ALTIM 29.95 inHg
ELEV 3,250 FT
44.2870°N / 120.9040°W
LOCATION · Prineville, US
N
WIND
330°10 kt
KS39 · 3,250 FT
© OSM · CartoDB

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

METRIC
NOW · 22Z
+6H
+12H
+18H
WIND
330°/10G17
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
—
 
 
 
T / Td
26 / 2
 
 
 
ALTIM
29.95"
 
 
 

Loading TAF forecast…

// Interpretation

VFR with moderate winds at 330°/10 kt, gusting 17. 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 KS39 282255Z AUTO 33010G17KT 300V360 10SM CLR 26/02 A2995 RMK AO2

KS39 · day 28 at 22:55 UTC · wind from 330° at 10 kt, gusts to 17 kt · visibility 10+ SM · temp 26°C / dewpoint 2°C · altimeter 29.95" Hg · automated station w/ precipitation discriminator

// Runway analysis · computed from current METAR wind

Wind 330° @ 10 ktG17
2 USABLE · 2 AVOID
N
WIND
330°10G17 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 2 usable
33★ HDG 330° H10 kt X0 kt — PRIMARY · 4,031'
29 HDG 290° H8 kt X6 kt RIGHT 5,405'
TAILWIND ENDS · AVOID 2 ends
11 HDG 110° T8 kt X6 kt LEFT —
15 HDG 150° T10 kt X0 kt — —
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 +17°C

5,300FT
+2,050 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS loading…
FIELD ELEV3,250 FT OAT+26°C ISA DELTA+17°C PRESSURE ALT3,218 FT
// Performance equivalent Operating here right now feels like operating at KSUN (Friedman Memorial Airport, Hailey, elev 5,318 ft) on a standard ISA day.
// Aircraft performance impact SIGNIFICANT
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+53%
-37%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+37%
-24%
Light jetCJ4, Phenom 300, M2
+21%
-16%

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 · 16,381 FT KS39 ELEV · 3,250 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING— HIGHEST LAYER— TOTAL COVERAGEclear FREEZING LEVEL16,381 ft VFR MARGINunlimited

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

13:23ZSUNRISE
20:06ZSOLAR NOON
02:49ZSUNSET
03:19ZCIVIL END
CURRENT23:06Z DAYLIGHT REMAINING3h 43m VFR NIGHT BEGINS03:19Z (4h 13m) DAY LENGTH13h 25m
Full Moon
ILLUMINATION99% MOONRISE02:05Z MOONSET15:31Z FULL MOON IN29 days

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

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