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// STALE Observation is 1h 2m old — METAR cadence is typically hourly. A fresh report may be on its way.

// Station · 1h 2m ago · STALE

KPWK

Chicago Executive Airport
CAT VFR
WIND CALM
VIS 10+ SM
CEILING Few/scattered only
T/Td 13.9°C / 11.7°C
ALTIM 29.99 inHg
ELEV 647 FT
42.1142°N / 87.9015°W
LOCATION · Chicago/Prospect Heights/Wheeling, US
N
WIND
000°0 kt
KPWK · 647 FT
© OSM · CartoDB

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

METRIC
NOW · 09Z
+6H
+12H
+18H
WIND
CALM
 
 
 
VIS
10+ SM
 
 
 
CEILING
 
 
 
LAYERS
FEW075
 
 
 
T / Td
14 / 12
 
 
 
ALTIM
29.99"
 
 
 

// Interpretation

VFR with winds calm. Visibility better than 10 statute miles and a few at 7,500 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 270952Z AUTO 00000KT 10SM FEW075 14/12 A2999 RMK AO2 SLP151 T01390117

KPWK · day 27 at 09:52 UTC · winds calm · visibility 10+ SM · a few clouds at 7,500 ft · temp 14°C / dewpoint 12°C · altimeter 29.99" Hg · automated station w/ precipitation discriminator · sea-level pressure 1015.1 mb

// Runway analysis · computed from current METAR wind

Wind CALM
ALL USABLE · WINDS CALM
N
WIND
000°calm
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 +0°C

600FT
-47 FT BELOW FIELD ELEV
// DA · LAST 24 HOURS ↘ -400 FT
2,600 1,450 300
24h AGO18h12h6hNOW
FIELD ELEV647 FT OAT+14°C ISA DELTA+0°C PRESSURE ALT573 FT
// Performance equivalent Operating here right now feels like operating at KSPI (Abraham Lincoln Capital Airport, Springfield, elev 598 ft) on a standard ISA day.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+6%
-4%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+4%
-3%
Light jetCJ4, Phenom 300, M2
+2%
-2%

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 · 1 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 7,667 FT FEW075 KPWK ELEV · 647 FT
// Reported layers (highest → lowest)
FEW075
Few · base 7,500 ft AGL · ~1–2 oktas
// Computed
CEILING HIGHEST LAYER7,500 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL7,667 ft VFR MARGINunlimited

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

10:22ZSUNRISE
17:50ZSOLAR NOON
01:18ZSUNSET
01:51ZCIVIL END
CURRENT10:54Z DAYLIGHT REMAINING14h 23m VFR NIGHT BEGINS01:51Z (14h 56m) DAY LENGTH14h 55m
Waxing Gibbous
ILLUMINATION83% MOONRISE19:05Z MOONSET10:00Z FULL MOON IN4 days

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

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

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