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// STALE Observation is 1h 35m old — METAR cadence is typically hourly. A fresh report may be on its way.

// Station · 1h 35m ago · STALE

KRHV

Reid-Hillview Airport of Santa Clara County
CAT VFR
WIND CALM
VIS 10+ SM
CEILING CLR
T/Td 16°C / 8°C
ALTIM 29.97 inHg
ELEV 135 FT
37.3329°N / 121.8190°W
LOCATION · San Jose, US
N
WIND
000°0 kt
KRHV · 135 FT
© OSM · CartoDB

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

METRIC
NOW · 04Z
+6H
+12H
+18H
WIND
CALM
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
—
 
 
 
T / Td
16 / 8
 
 
 
ALTIM
29.97"
 
 
 

// Interpretation

VFR with winds calm. 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.

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SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR KRHV 130458Z 00000KT 10SM SKC 16/08 A2997 RMK LAST

KRHV · day 13 at 04:58 UTC · winds calm · visibility 10+ SM · temp 16°C / dewpoint 8°C · altimeter 29.97" 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 4 ends
13L HDG 130° —CALM —— 3,100'
31R HDG 310° —CALM —— 3,100'
13R HDG 130° —CALM —— 3,099'
31L HDG 310° —CALM —— 3,099'
Pattern altitude: 1,135 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 +1°C

200FT
+65 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS loading…
FIELD ELEV135 FT OAT+16°C ISA DELTA+1°C PRESSURE ALT82 FT
// Performance equivalent Operating here right now feels like operating at KTCY (Tracy Municipal Airport, Tracy, elev 193 ft) on a standard ISA day.
// Aircraft performance impact ENHANCED
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+2%
-1%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+1%
-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 · clear · no layers reported

FT 0 5k 10k 15k 20k 25k FRZ LVL · 8,216 FT KRHV ELEV · 135 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING— HIGHEST LAYER— TOTAL COVERAGEclear FREEZING LEVEL8,216 ft VFR MARGINunlimited

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

14:13ZSUNRISE
19:54ZSOLAR NOON
01:36ZSUNSET
02:02ZCIVIL END
CURRENT06:33Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS02:02Z (past) DAY LENGTH11h 22m
Waxing Crescent
ILLUMINATION4% MOONRISE15:45Z MOONSET03:08Z FULL MOON IN13 days

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

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