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// KLOT · Lewis University Airport · Chicago/Romeoville

// STALE Observation is 1h 35m old — METAR cadence is typically hourly. A fresh report may be on its way.

// Station · 1h 35m ago · STALE

KLOT

Lewis University Airport
CAT VFR
WIND 200° / 8 kt
VIS 10+ SM
CEILING CLR
T/Td 22°C / 18°C
ALTIM 29.78 inHg
ELEV 679 FT
41.6073°N / 88.0962°W
LOCATION · Chicago/Romeoville, US
N
WIND
200°8 kt
KLOT · 679 FT
© OSM · CartoDB

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

METRIC
NOW · 10Z
+6H
+12H
+18H
WIND
200°/8
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
—
 
 
 
T / Td
22 / 18
 
 
 
ALTIM
29.78"
 
 
 

Loading TAF forecast…

// Interpretation

VFR with moderate winds at 200°/8 kt. Visibility better than 10 statute miles and no reported cloud layers. 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 KLOT 131045Z 20008KT 10SM CLR 22/18 A2978

KLOT · day 13 at 10:45 UTC · wind from 200° at 8 kt · visibility 10+ SM · temp 22°C / dewpoint 18°C · altimeter 29.78" Hg

// Runway analysis · computed from current METAR wind

Wind 200° @ 8 kt
2 USABLE · 2 AVOID · 1 CAUTION
N
WIND
200°8 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 2 usable
20★ HDG 200° H8 kt X0 kt — PRIMARY · 6,500'
27 HDG 270° H3 kt X8 kt LEFT ⚠ HIGH XW · 100%
TAILWIND ENDS · AVOID 2 ends
09 HDG 090° T3 kt X8 kt RIGHT —
02 HDG 020° T8 kt X0 kt — —
Pattern altitude: 1,679 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

1,900FT
+1,221 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS loading…
FIELD ELEV679 FT OAT+22°C ISA DELTA+9°C PRESSURE ALT818 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 MODERATE
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. 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 · clear · no layers reported

FT 0 5k 10k 15k 20k 25k FRZ LVL · 11,790 FT KLOT ELEV · 679 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING— HIGHEST LAYER— TOTAL COVERAGEclear FREEZING LEVEL11,790 ft VFR MARGINunlimited

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

12:03ZSUNRISE
17:39ZSOLAR NOON
23:16ZSUNSET
23:44ZCIVIL END
CURRENT12:20Z DAYLIGHT REMAINING10h 56m VFR NIGHT BEGINS23:44Z (11h 23m) DAY LENGTH11h 13m
Waxing Crescent
ILLUMINATION5% MOONRISE13:47Z MOONSET01:00Z FULL MOON IN13 days

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