// 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

WIND

030°12 kt

KMDW · 620 FT

// 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

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

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

// 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

KORD

VFR

Chicago O'Hare International Airport · Chicago

WIND: 050° / 14 ktG19
VIS: 10+ SM
CEILING: FEW015
DIST: 13 NM NW
AGE: 31m ago

KIGQ

VFR

Lansing Municipal Airport · Chicago

WIND: 010° / 9 kt
VIS: 10+ SM
CEILING: SCT018
DIST: 18 NM SE
AGE: 7m ago

KGYY

VFR

Gary/Chicago International Airport · Gary

WIND: 020° / 11 ktG17
VIS: 10+ SM
CEILING: FEW011
DIST: 18 NM SE
AGE: 32m ago

KLOT

VFR

Lewis University Airport · Chicago/Romeoville

WIND: 050° / 11 ktG19
VIS: 10+ SM
CEILING: CLR
DIST: 19 NM SW
AGE: 37m ago

K06C

VFR

Schaumburg Regional Airport · Chicago/Schaumburg

WIND: 050° / 5 ktG16
VIS: 10+ SM
CEILING: CLR
DIST: 20 NM NW
AGE: 7m ago

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

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