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// KPAO · Palo Alto Airport · Palo Alto

// STALE Observation is 1h 38m old — METAR cadence is typically hourly. A fresh report may be on its way.

// Station · 1h 38m ago · STALE

KPAO

Palo Alto Airport
CAT VFR
WIND 360° / 8 kt
VIS 10+ SM
CEILING Few/scattered only
T/Td 19°C / 15°C
ALTIM 30.07 inHg
ELEV 4 FT
37.4611°N / 122.1150°W
LOCATION · Palo Alto, US
N
WIND
360°8 kt
KPAO · 4 FT
© OSM · CartoDB

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

METRIC
NOW · 18Z
+6H
+12H
+18H
WIND
360°/8
 
 
 
VIS
10+ SM
 
 
 
CEILING
—
 
 
 
LAYERS
SCT200
 
 
 
T / Td
19 / 15
 
 
 
ALTIM
30.07"
 
 
 

Loading TAF forecast…

// Interpretation

VFR with moderate winds at 360°/8 kt. Visibility better than 10 statute miles and scattered at 20,000 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 KPAO 251847Z 36008KT 10SM SCT200 19/15 A3007

KPAO · day 25 at 18:47 UTC · wind from 360° at 8 kt · visibility 10+ SM · scattered layer at 20,000 ft · temp 19°C / dewpoint 15°C · altimeter 30.07" Hg

// Runway analysis · computed from current METAR wind

Wind 360° @ 8 kt
1 USABLE · 1 AVOID · 1 CAUTION
N
WIND
360°8 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
31★ HDG 310° H5 kt X6 kt RIGHT PRIMARY · 2,441'
TAILWIND ENDS · AVOID 1 ends
13 HDG 130° T5 kt X6 kt LEFT —
Pattern altitude: 1,004 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 +4°C

300FT
+296 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -500 FT
1,000 400 -200
24h AGO18h12h6hNOW
FIELD ELEV4 FT OAT+19°C ISA DELTA+4°C PRESSURE ALT-149 FT
// Performance equivalent Operating here right now feels like operating at KEMT (San Gabriel Valley Airport, El Monte, elev 296 ft) on a standard ISA day.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+3%
-2%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+2%
-1%
Light jetCJ4, Phenom 300, M2
+1%
-1%

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 · 1 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 9,600 FT SCT200 KPAO ELEV · 4 FT
// Reported layers (highest → lowest)
SCT200
Scattered · base 20,000 ft AGL · ~3–4 oktas
// Computed
CEILING— HIGHEST LAYER20,000 ft TOTAL COVERAGE~40% (mixed) FREEZING LEVEL9,600 ft VFR MARGINunlimited

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

13:34ZSUNRISE
20:12ZSOLAR NOON
02:49ZSUNSET
03:16ZCIVIL END
CURRENT20:25Z DAYLIGHT REMAINING6h 24m VFR NIGHT BEGINS03:16Z (6h 51m) DAY LENGTH13h 15m
Waxing Gibbous
ILLUMINATION94% MOONRISE23:45Z MOONSET13:00Z FULL MOON IN2 days

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