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// Station · 26m ago

KGYY

Gary/Chicago International Airport
CAT VFR
WIND 020° / 10 kt G17
VIS 10+ SM
CEILING CLR
T/Td 26°C / 25°C
ALTIM 30.06 inHg
ELEV 591 FT
41.6171°N / 87.4132°W
LOCATION · Gary, US
N
WIND
020°10 kt
KGYY · 591 FT
© OSM · CartoDB

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

METRIC
NOW · 20Z
+6H
+12H
+18H
WIND
020°/10G17
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
26 / 25
 
 
 
ALTIM
30.06"
 
 
 

// Interpretation

VFR with moderate winds at 020°/10 kt, gusting 17. 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 KGYY 112050Z 02010G17KT 10SM CLR 26/25 A3006

KGYY · day 11 at 20:50 UTC · wind from 020° at 10 kt, gusts to 17 kt · visibility 10+ SM · temp 26°C / dewpoint 25°C · altimeter 30.06" Hg

// Runway analysis · computed from current METAR wind

Wind 020° @ 10 ktG17
2 USABLE · 2 AVOID · 1 CAUTION
N
WIND
020°10G17 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 2 usable
02 HDG 020° H10 kt X0 kt PRIMARY · 3,604'
30 HDG 300° H2 kt X10 kt RIGHT ⚠ HIGH XW · 59%
TAILWIND ENDS · AVOID 2 ends
12 HDG 120° T2 kt X10 kt LEFT
20 HDG 200° T10 kt X0 kt
Pattern altitude: 1,591 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
+1,309 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -100 FT
2,100 1,750 1,400
24h AGO18h12h6hNOW
FIELD ELEV591 FT OAT+26°C ISA DELTA+12°C PRESSURE ALT449 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 · clear · no layers reported

FT 0 5k 10k 15k 20k 25k FRZ LVL · 13,722 FT KGYY ELEV · 591 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL13,722 ft VFR MARGINunlimited

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

10:26ZSUNRISE
17:56ZSOLAR NOON
01:25ZSUNSET
01:59ZCIVIL END
CURRENT21:16Z DAYLIGHT REMAINING4h 09m VFR NIGHT BEGINS01:59Z (4h 42m) DAY LENGTH14h 59m
Waning Crescent
ILLUMINATION9% MOONRISE08:04Z MOONSET23:04Z 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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