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// Station · 26m ago

KORD

Chicago O'Hare International Airport
CAT VFR
WIND VRB / 3 kt
VIS 10+ SM
CEILING BKN at 25,000 ft
T/Td 23.3°C / 12.8°C
ALTIM 30.14 inHg
ELEV 680 FT
41.9786°N / 87.9048°W
LOCATION · Chicago, US
N
WIND
VRB3 kt
KORD · 680 FT
© OSM · CartoDB

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

METRIC
NOW · 15Z
+6H
+12H
+18H
WIND
VRB/3
 
 
 
VIS
10+ SM
 
 
 
CEILING
BKN250
 
 
 
LAYERS
FEW050 FEW100 BKN250
 
 
 
T / Td
23 / 13
 
 
 
ALTIM
30.14"
 
 
 

// Interpretation

VFR — ceiling 25,000 ft. Light winds at variable/3 kt, visibility better than 10 statute miles, a few at 5,000 ft, a few at 10,000 ft, and broken at 25,000 ft. Would shift to MVFR if the ceiling drops to 3,000 ft or visibility below 5 SM.

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

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// Raw observation METAR string + decoded

METAR KORD 251551Z VRB03KT 10SM FEW050 FEW100 BKN250 23/13 A3014 RMK AO2 SLP203 T02330128

KORD · day 25 at 15:51 UTC · wind variable at 3 kt · visibility 10+ SM · a few clouds at 5,000 ft · a few clouds at 10,000 ft · broken layer at 25,000 ft · temp 23°C / dewpoint 13°C · altimeter 30.14" Hg · automated station w/ precipitation discriminator · sea-level pressure 1020.3 mb

// Runway analysis · computed from current METAR wind

Wind VRB @ 3 kt
ALL USABLE · WINDS CALM
N
WIND
VRB3 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS 16 ends
10L HDG 100° CALM 13,000'
28R HDG 280° CALM 13,000'
09R HDG 090° CALM 11,260'
27L HDG 270° CALM 11,260'
09C HDG 090° CALM 11,245'
27C HDG 270° CALM 11,245'
10C HDG 100° CALM 10,800'
28C HDG 280° CALM 10,800'
04R HDG 040° CALM 8,075'
22L HDG 220° CALM 8,075'
04L HDG 040° CALM 7,500'
22R HDG 220° CALM 7,500'
09L HDG 090° CALM 7,500'
27R HDG 270° CALM 7,500'
10R HDG 100° CALM 7,500'
28L HDG 280° CALM 7,500'
Pattern altitude: 1,680 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 +9°C

1,600FT
+920 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS loading…
FIELD ELEV680 FT OAT+23°C ISA DELTA+9°C PRESSURE ALT459 FT
// Performance equivalent Operating here right now feels like operating at KRHI (Rhinelander Oneida County Airport, Rhinelander, elev 1,624 ft) on a standard ISA day.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+16%
-11%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+11%
-7%
Light jetCJ4, Phenom 300, M2
+6%
-5%

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 · 3 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 12,448 FT FEW050 FEW100 BKN250 · CEILING KORD ELEV · 680 FT
// Reported layers (highest → lowest)
BKN250
Broken · base 25,000 ft AGL · ~5–7 oktas
FEW100
Few · base 10,000 ft AGL · ~1–2 oktas
FEW050
Few · base 5,000 ft AGL · ~1–2 oktas
// Computed
CEILING25,000 ft AGL HIGHEST LAYER25,000 ft TOTAL COVERAGE~91% (overcast) FREEZING LEVEL12,448 ft VFR MARGIN+22,000 ft

// Sun & Moon · times in Z · bar = local day (UTC-6)

11:11ZSUNRISE
17:55ZSOLAR NOON
00:39ZSUNSET
01:08ZCIVIL END
CURRENT16:17Z DAYLIGHT REMAINING8h 21m VFR NIGHT BEGINS01:08Z (8h 50m) DAY LENGTH13h 27m
Waxing Gibbous
ILLUMINATION94% MOONRISE21:13Z MOONSET10:41Z FULL MOON IN2 days

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