Gary Chicago International Airport

KGYY / GYY

Gary, US

Last Updated
Jul 4, 22:11Z

Current Weather

Display Units
Fresh 13 min ago
22:11Z

🌙 Night
LIFR
Flight Rules
22°C
Temperature
Dewpoint: 22°C
12 kt
240°
--
Visibility
300 ft
Ceiling
Above Ground Level
1015 hPa
QNH
Altimeter Setting

Raw METAR

SPECI KGYY 042211Z 24012KT 1/2SM VCTS RA BR BKN003 OVC028 22/22 A2996 RMK LTG DSNT ALQDS

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 591 ft
BKN 300 ft AGL
OVC 2,800 ft AGL
☁️
BKN
Broken (5/8-7/8 sky coverage)
300 ft
AGL (Above Ground)
891 ft AMSL
☁️
OVC
Overcast (8/8 sky coverage)
2,800 ft
AGL (Above Ground)
3,391 ft AMSL

Weather Briefing

LIFR

Gary Chicago International Airport is currently reporting low IFR (LIFR) conditions with overcast skies at 2,800 feet.

Wind Analysis

Winds are from the west-southwest (240°) at 12 knots. Runway 20 is favored with a 9-knot headwind and 8-knot crosswind component.

Visibility & Ceiling

The ceiling is very low at 300 feet AGL (broken), well below circling minimums at most airports.

Temperature & Moisture

Temperature is 22°C (72°F) with a dewpoint of 22°C. The temperature-dewpoint spread is very narrow, indicating saturated or near-saturated air. Fog formation or low cloud development is likely.

Forecast Outlook

The TAF forecast covers the next 21 hours. The forecast shows a transition between VFR and IFR conditions. Pilots should monitor the forecast closely and have an alternate airport plan. Expected weather includes: Light Showers Rain, Thunderstorm Rain, Mist, Mist. Winds are forecast to reach up to 20 knots during the period. Expect variable wind speeds ranging from 7 to 20 knots. Temporary IFR conditions are forecast with Thunderstorm Rain, Mist between 22:00Z and 00:00Z.

Pilot Recommendations

Current conditions require an instrument rating, IFR-equipped aircraft, and an IFR clearance. Check approach minimums carefully as conditions may be below CAT I ILS minimums. The narrow temperature-dewpoint spread creates risk of fog formation, particularly during evening and early morning hours.

This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.

QNH
1015 hPa
Sea Level Pressure
For altitude above MSL
QFE
995 hPa
Field Pressure
Height above aerodrome (591 ft)
Pressure Alt
539 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: 1,521 ft
ISA Deviation: +8.2°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF KGYY 042100Z 0421/0518 04010KT 6SM -SHRA VCTS SCT015 BKN035CB TEMPO 0422/0424 VRB20G35KT 2SM TSRA BR BKN015 OVC035CB FM050100 04007KT P6SM SCT015 BKN100 FM050400 01007KT 6SM BR SCT005 SCT025 BKN100
Upcoming Changes (Next 12 Hours)
22:23Z BASE
+0h
MVFR 40° 10 kt
Visibility: 6SM
Ceiling: 3,500 ft
Light Showers Rain
01:00Z FM050100
+3h
VFR 40° 7 kt
Visibility: >6SM
Ceiling: 10,000 ft
04:00Z FM050400
+6h
VFR 10° 7 kt
Visibility: 6SM
Ceiling: 10,000 ft
Mist

24-Hour Weather Evolution

Loading weather data...
Data Sources
  • • Current conditions from METAR observations
  • • Historical data from past 24 hours
  • • No forecast or predicted data included
  • • Data updated with each new METAR report
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Note: Future values beyond current TAF validity are estimates based on climatological data and trends. Always verify with current forecasts before flight operations.

Airport Runway Layout

N
GYY
02
20 ✈️
12
30

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 02/20
Active: 20
3,603 ft 100 ft ASP 21°
9.2 kt 7.7 kt
40° angle
12/30 7,003 ft 150 ft ASP 124°
5.3 kt 10.8 kt
116° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - KGYY

9,890 observations | Sep 2025 - Jul 2026

Flight Rules Distribution

VFR
73.9%
MVFR
17.3%
IFR
4.7%
LIFR
4.1%

Gary Chicago International Airport typically experiences VFR conditions 73.9% of the time, though instrument-rated pilots will find IFR weather present approximately 8.8% of observations. Prevailing winds are from the W averaging 9.2 knots, with gusts recorded up to 114 knots. Calm conditions occur 14.1% of the time. Temperature extremes range from -21°C to 35°C, reflecting significant seasonal variation. The best months for VFR flying are July, May, October.

Wind Analysis

Prevailing Direction: W (270°)
Average Speed: 9.2 kt
Maximum Recorded: 114 kt
Calm Winds: 14.1%
Direction Distribution:
E
4.8%
N
8.9%
S
16.8%
W
16.8%
NE
9.3%
NW
6.8%
SE
7.7%
SW
14.9%

Temperature Range

Average: 8.4°C
Range: -21°C to 35°C
-21°C 35°C

Visibility

Average: 9.3 SM
Below 3 SM: 1.7%
Fog Frequency: 1.1%

Best Months for VFR

July May October

Runway Wind Analysis

Runway 02/20
Favorable wind: 100%
Avg crosswind: 5.3 kt
Runway 12/30
Favorable wind: 100%
Avg crosswind: 6.3 kt

Statistics computed from 9,890 METAR observations (Sep 2025 - Jul 2026). Data sourced from official aviation weather services. Updated daily.

Gary Chicago International Airport - Airport Information

Airport Details

ICAO Code: KGYY
IATA Code: GYY
Type: medium airport
Status: active
Elevation: 591 ft MSL

Location

City: Gary
Country: US
Latitude: 41.616299°
Longitude: -87.412804°
Time Zone: Etc/GMT+6

Runway Information

Runway 02/20
Length: 3,603 ft
Width: 100 ft
Surface: ASP
ILS: No
Runway 12/30
Length: 7,003 ft
Width: 150 ft
Surface: ASP
ILS: No

About Gary Chicago International Airport

Overview

Gary Chicago International Airport serves the Chicago metropolitan area as a medium-sized airport located in Gary, Indiana. Situated at 591 feet above mean sea level, the airport provides an alternative aviation facility for the region with two paved runways capable of supporting various aircraft operations.

Flying Conditions

Pilots can expect predominantly Visual Flight Rules (VFR) conditions, with 71.4% of observations showing VFR weather. The airport experiences significant wind variability, with prevailing westerly winds averaging 9.2 knots and occasional extreme gusts up to 114 knots. Temperature ranges from -21°C to 33°C, creating diverse flying conditions throughout the year.

Notable Features

The airport features two runways: a 3,603-foot runway 02/20 and a longer 7,003-foot runway 12/30. Both runways demonstrate favorable wind alignment, with 100% wind compatibility. The airport's location near Chicago provides strategic aviation access with relatively stable wind and visibility conditions.

Approach Considerations

Best VFR months are October, September, and November, offering optimal flying conditions. Average crosswind components are moderate, with 6.1 knots for runway 02/20 and 5.6 knots for runway 12/30. Visibility averages 9.3 statute miles, with minimal instances of restricted visibility (below 3 miles occurring in only 2% of observations).

Data Sources & Accuracy: Airport information sourced from OurAirports.com, a collaborative database of worldwide airport data. Weather data from official aviation weather services including NOAA Aviation Weather Center and international METAR/TAF providers. Information is updated regularly but pilots should always verify current conditions and NOTAMs through official channels before flight operations.

Official Data Sources

Weather NOAA Aviation Weather Center • International METAR/TAF Network
Airports OurAirports.com • Public domain airport database
NOTAMs FAA NOTAM System • ICAO NOTAM Distribution
Last updated: Jan 1, 1970 12:00 AM UTC

Disclaimer: Data is provided for informational purposes only. Pilots must verify all information through official sources before flight operations. Weather conditions change rapidly; always obtain a current briefing from approved weather services.