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// Station · 29m ago

KMDW

Chicago Midway International Airport
CAT VFR
WIND 030° / 12 kt
VIS 10+ SM
CEILING BKN at 25,000 ft
T/Td 26.1°C / 17.8°C
ALTIM 30.06 inHg
ELEV 620 FT
41.7860°N / 87.7524°W
LOCATION · Chicago, US
N
WIND
030°12 kt
KMDW · 620 FT
© OSM · CartoDB

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

METRIC
NOW · 18Z
+6H
+12H
+18H
WIND
030°/12
 
 
 
VIS
10+ SM
 
 
 
CEILING
BKN250
 
 
 
LAYERS
FEW015 FEW200 BKN250
 
 
 
T / Td
26 / 18
 
 
 
ALTIM
30.06"
 
 
 

// Interpretation

VFR — ceiling 25,000 ft. Moderate winds at 030°/12 kt, visibility better than 10 statute miles, a few at 1,500 ft, a few at 20,000 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 KMDW 111853Z 03012KT 10SM FEW015 FEW200 BKN250 26/18 A3006 RMK AO2 SLP172 T02610178

KMDW · day 11 at 18:53 UTC · wind from 030° at 12 kt · visibility 10+ SM · a few clouds at 1,500 ft · a few clouds at 20,000 ft · broken layer at 25,000 ft · temp 26°C / dewpoint 18°C · altimeter 30.06" Hg · automated station w/ precipitation discriminator · sea-level pressure 1017.2 mb

// Runway analysis · computed from current METAR wind

Wind 030° @ 12 kt
4 USABLE · 4 AVOID · 2 CAUTION
N
WIND
030°12 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 4 usable
04L HDG 040° H12 kt X2 kt LEFT PRIMARY · 5,507'
04R HDG 040° H12 kt X2 kt LEFT 6,445'
31R HDG 310° H2 kt X12 kt RIGHT ⚠ HIGH XW · 100%
31L HDG 310° H2 kt X12 kt RIGHT ⚠ HIGH XW · 100%
TAILWIND ENDS · AVOID 4 ends
13L HDG 130° T2 kt X12 kt LEFT
13R HDG 130° T2 kt X12 kt LEFT
22R HDG 220° T12 kt X2 kt RIGHT
22L HDG 220° T12 kt X2 kt RIGHT
Pattern altitude: 1,620 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 +12°C

1,900FT
+1,280 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -300 FT
2,400 1,800 1,200
24h AGO18h12h6hNOW
FIELD ELEV620 FT OAT+26°C ISA DELTA+12°C PRESSURE ALT478 FT
// Performance equivalent Operating here right now feels like operating at KCSV (Crossville Memorial Airport Whitson Field, Crossville, elev 1,881 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 · 13,802 FT FEW015 FEW200 BKN250 · CEILING KMDW ELEV · 620 FT
// Reported layers (highest → lowest)
BKN250
Broken · base 25,000 ft AGL · ~5–7 oktas
FEW200
Few · base 20,000 ft AGL · ~1–2 oktas
FEW015
Few · base 1,500 ft AGL · ~1–2 oktas
// Computed
CEILING25,000 ft AGL HIGHEST LAYER25,000 ft TOTAL COVERAGE~91% (overcast) FREEZING LEVEL13,802 ft VFR MARGIN+22,000 ft

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

10:27ZSUNRISE
17:57ZSOLAR NOON
01:27ZSUNSET
02:01ZCIVIL END
CURRENT19:22Z DAYLIGHT REMAINING6h 05m VFR NIGHT BEGINS02:01Z (6h 39m) DAY LENGTH15h 00m
Waning Crescent
ILLUMINATION10% MOONRISE08:01Z MOONSET23:02Z FULL MOON IN18 days

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

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

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