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// Station · 37m ago

KRDU

Raleigh-Durham International Airport
CAT VFR
WIND 260° / 6 kt
VIS 10+ SM
CEILING BKN at 25,000 ft
T/Td 27.2°C / 22.2°C
ALTIM 30.02 inHg
ELEV 435 FT
35.8787°N / 78.7873°W
LOCATION · Raleigh/Durham, US
N
WIND
260°6 kt
KRDU · 435 FT
© OSM · CartoDB

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

METRIC
NOW · 13Z
+6H
+12H
+18H
WIND
260°/6
 
 
 
VIS
10+ SM
 
 
 
CEILING
BKN250
 
 
 
LAYERS
FEW080 SCT180 BKN250
 
 
 
T / Td
27 / 22
 
 
 
ALTIM
30.02"
 
 
 

// Interpretation

VFR — ceiling 25,000 ft. Light winds at 260°/6 kt, visibility better than 10 statute miles, a few at 8,000 ft, scattered at 18,000 ft, and broken at 25,000 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 KRDU 111351Z 26006KT 10SM FEW080 SCT180 BKN250 27/22 A3002 RMK AO2 SLP161 T02720222 $

KRDU · day 11 at 13:51 UTC · wind from 260° at 6 kt · visibility 10+ SM · a few clouds at 8,000 ft · scattered layer at 18,000 ft · broken layer at 25,000 ft · temp 27°C / dewpoint 22°C · altimeter 30.02" Hg · automated station w/ precipitation discriminator · sea-level pressure 1016.1 mb

// Runway analysis · computed from current METAR wind

Wind 260° @ 6 kt
3 USABLE · 3 AVOID
N
WIND
260°6 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 3 usable
23R HDG 230° H5 kt X3 kt RIGHT PRIMARY · 10,000'
23L HDG 230° H5 kt X3 kt RIGHT 7,500'
32 HDG 320° H3 kt X5 kt LEFT 3,570'
TAILWIND ENDS · AVOID 3 ends
14 HDG 140° T3 kt X5 kt RIGHT
05L HDG 050° T5 kt X3 kt LEFT
05R HDG 050° T5 kt X3 kt LEFT
Pattern altitude: 1,435 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 +13°C

1,900FT
+1,465 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -500 FT
3,200 2,150 1,100
24h AGO18h12h6hNOW
FIELD ELEV435 FT OAT+27°C ISA DELTA+13°C PRESSURE ALT332 FT
// Performance equivalent Operating here right now feels like operating at K1A5 (Macon County Airport, Franklin, elev 2,020 ft) on a standard ISA day.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+19%
-13%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+13%
-9%
Light jetCJ4, Phenom 300, M2
+8%
-6%

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 · 14,172 FT FEW080 SCT180 BKN250 · CEILING KRDU ELEV · 435 FT
// Reported layers (highest → lowest)
BKN250
Broken · base 25,000 ft AGL · ~5–7 oktas
SCT180
Scattered · base 18,000 ft AGL · ~3–4 oktas
FEW080
Few · base 8,000 ft AGL · ~1–2 oktas
// Computed
CEILING25,000 ft AGL HIGHEST LAYER25,000 ft TOTAL COVERAGE~91% (overcast) FREEZING LEVEL14,172 ft VFR MARGIN+22,000 ft

// Sun & Moon · times in Z · bar = local day (UTC-5)

10:08ZSUNRISE
17:21ZSOLAR NOON
00:34ZSUNSET
01:04ZCIVIL END
CURRENT14:28Z DAYLIGHT REMAINING10h 06m VFR NIGHT BEGINS01:04Z (10h 36m) DAY LENGTH14h 25m
Waning Crescent
ILLUMINATION11% MOONRISE07:33Z MOONSET21:59Z FULL MOON IN18 days

// Nearest reporting stations · 5 shown · 60 NM radius

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

© OpenStreetMap · CartoDB · OpenAIP
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