[/] search [ENTER] submit ICAO [ESC] clear 5,740 STATIONS · WORLDWIDE

// Station · 22m ago

KGYY

Gary/Chicago International Airport
CAT VFR
WIND CALM
VIS 8.0 SM
CEILING CLR
T/Td 24°C / 16°C
ALTIM 30.00 inHg
ELEV 591 FT
41.6171°N / 87.4132°W
LOCATION · Gary, US
N
WIND
000°0 kt
KGYY · 591 FT
© OSM · CartoDB

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

METRIC
NOW · 13Z
+6H
+12H
+18H
WIND
CALM
 
 
 
VIS
8.0 SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
24 / 16
 
 
 
ALTIM
30.00"
 
 
 

// Interpretation

VFR with winds calm. Visibility 8.0 SM 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…)

// Want this glance-able on 10 airports? METAR Deck →

// Raw observation METAR string + decoded

METAR KGYY 271350Z 00000KT 8SM CLR 24/16 A3000

KGYY · day 27 at 13:50 UTC · winds calm · visibility 8.0 SM · temp 24°C / dewpoint 16°C · altimeter 30.00" Hg

// 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 4 ends
12 HDG 120° CALM 8,859'
30 HDG 300° CALM 8,859'
02 HDG 020° CALM 3,604'
20 HDG 200° CALM 3,604'
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 +10°C

1,700FT
+1,109 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↗ +0 FT
2,500 1,300 100
24h AGO18h12h6hNOW
FIELD ELEV591 FT OAT+24°C ISA DELTA+10°C PRESSURE ALT509 FT
// Performance equivalent Operating here right now feels like operating at KRHI (Rhinelander Oneida County Airport, Rhinelander, elev 1,624 ft) on a standard ISA day.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+17%
-12%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+12%
-8%
Light jetCJ4, Phenom 300, M2
+7%
-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.

// Cloud layers · clear · no layers reported

FT 0 5k 10k 15k 20k 25k FRZ LVL · 12,712 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 LEVEL12,712 ft VFR MARGINunlimited

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

10:22ZSUNRISE
17:48ZSOLAR NOON
01:14ZSUNSET
01:47ZCIVIL END
CURRENT14:12Z DAYLIGHT REMAINING11h 02m VFR NIGHT BEGINS01:47Z (11h 35m) DAY LENGTH14h 52m
Waxing Gibbous
ILLUMINATION84% MOONRISE19:11Z MOONSET10:04Z FULL MOON IN4 days

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

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

© OpenStreetMap · CartoDB · OpenAIP
// Want this on your Stream Deck? METAR Deck shows real-time category and conditions for any 10 airports — built by the team that ships this page.
Get METAR Deck →