// Station · 27m ago

KPWK

Chicago Executive Airport

CAT VFR

WIND 170° / 3 kt

VIS 10+ SM

CEILING Few/scattered only

T/Td 23.3°C / 13.3°C

ALTIM 30.16 inHg

ELEV 647 FT

42.1142°N / 87.9015°W

LOCATION · Chicago/Prospect Heights/Wheeling, US

WIND

170°3 kt

KPWK · 647 FT

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

METRIC

NOW · 15Z

+6H

+12H

+18H

WIND

170°/3

VIS

10+ SM

CEILING

—

LAYERS

FEW095 FEW110

T / Td

23 / 13

ALTIM

30.16"

// Interpretation

VFR with light winds at 170°/3 kt. Visibility better than 10 statute miles and a few at 9,500 ft, and a few at 11,000 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 KPWK 251552Z 17003KT 10SM FEW095 FEW110 23/13 A3016 RMK AO2 SLP211 T02330133

KPWK · day 25 at 15:52 UTC · wind from 170° at 3 kt · visibility 10+ SM · a few clouds at 9,500 ft · a few clouds at 11,000 ft · temp 23°C / dewpoint 13°C · altimeter 30.16" Hg · automated station w/ precipitation discriminator · sea-level pressure 1021.1 mb

// Runway analysis · computed from current METAR wind

Wind 170° @ 3 kt

ALL USABLE · WINDS CALM

WIND

170°3 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 6 ends

16 HDG 160° —CALM —— 5,001'

34 HDG 340° —CALM —— 5,001'

12 HDG 120° —CALM —— 4,415'

30 HDG 300° —CALM —— 4,415'

06 HDG 060° —CALM —— 3,677'

24 HDG 240° —CALM —— 3,677'

Pattern altitude: 1,647 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

1,500FT

+853 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV647 FT OAT+23°C ISA DELTA+9°C PRESSURE ALT405 FT

// Performance equivalent Operating here right now feels like operating at KAIG (Langlade County Airport, Antigo, elev 1,521 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+15%

-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 · 2 reported · highest to lowest

// Reported layers (highest → lowest)

FEW110

Few · base 11,000 ft AGL · ~1–2 oktas

FEW095

Few · base 9,500 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER11,000 ft TOTAL COVERAGE~23% (sparse) FREEZING LEVEL12,415 ft VFR MARGINunlimited

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

11:11ZSUNRISE

17:55ZSOLAR NOON

00:39ZSUNSET

01:08ZCIVIL END

CURRENT16:19Z DAYLIGHT REMAINING8h 20m VFR NIGHT BEGINS01:08Z (8h 49m) DAY LENGTH13h 28m

Waxing Gibbous

ILLUMINATION94% MOONRISE21:13Z MOONSET10:41Z FULL MOON IN2 days

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

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