KGYY TAF

Terminal aerodrome forecast for Gary/Chicago International (GYY · KGYY), Gary/Chicago, IN. Issued 5 Nov 2026 0625Z, valid 0600Z to 0600Z, decoded period by period below. · Open on the map

All of Gary/Chicago International — runways, frequencies, charts and live weather

TAF issued 5 Nov 2026 0625Z

valid 0600Z to 0600Z

TAF KGYY 050625Z 0506/0606 23009KT P6SM -SHRADZ SCT015 BKN020 TEMPO 0506/0510 3SM -RA BR OVC010 FM051900 25010KT 6SM -SHRA OVC010 FM052200 32009KT P6SM VCSH SCT008 OVC010 TEMPO 0522/0602 3SM -SHRA BR BKN008 FM060200 35012G20KT P6SM BKN015

Times are UTC (Zulu), as they appear in the bulletin.

Period by period

Period (UTC)	Change	Wind	Vis	Ceiling	Sky	Cat
0600Z to 1900Z	Initial	230° at 9 kt	6+ SM	2,000 ft BKN	Scattered at 1,500 ft AGL, Broken at 2,000 ft AGL	MVFR

0600Z to 1000Z	TEMPO	No change	3 SM	1,000 ft OVC	Overcast at 1,000 ft AGL	MVFR

1900Z to 2200Z	FM	250° at 10 kt	6+ SM	1,000 ft OVC	Overcast at 1,000 ft AGL	MVFR

2200Z to 0200Z	FM	320° at 9 kt	6+ SM	1,000 ft OVC	Scattered at 800 ft AGL, Overcast at 1,000 ft AGL	MVFR

2200Z to 0200Z	TEMPO	No change	3 SM	800 ft BKN	Broken at 800 ft AGL	IFR

0200Z to 0600Z	FM	350° at 12-20 kt	6+ SM	1,500 ft BKN	Broken at 1,500 ft AGL	MVFR

What the change groups mean

TEMPO: Temporary — expected for less than half the period, in spells under an hour.
FM: From — a rapid, permanent change to the conditions that follow.

What the categories mean

MVFR: Marginal VFR — ceiling 1,000 to 3,000 ft and/or visibility 3 to 5 SM.
IFR: Instrument flight rules — ceiling 500 to 999 ft and/or visibility 1 to less than 3 SM.

Frequently asked

What is the current TAF for KGYY?

The forecast issued 5 Nov 2026 0625Z for Gary/Chicago International reads: TAF KGYY 050625Z 0506/0606 23009KT P6SM -SHRADZ SCT015 BKN020 TEMPO 0506/0510 3SM -RA BR OVC010 FM051900 25010KT 6SM -SHRA OVC010 FM052200 32009KT P6SM VCSH SCT008 OVC010 TEMPO 0522/0602 3SM -SHRA BR BKN008 FM060200 35012G20KT P6SM BKN015

How far ahead does a TAF forecast?

A TAF covers a 24-hour period at most airports and 30 hours at larger ones, issued four times a day at 0000Z, 0600Z, 1200Z and 1800Z. It describes conditions within roughly 5 statute miles of the airport, not the surrounding area.

What do FM, BECMG and TEMPO mean?

FM (from) marks a rapid, permanent change at the stated time. BECMG (becoming) marks a gradual change over the stated window. TEMPO marks conditions expected for less than half the period, in spells of under an hour each. PROB30 and PROB40 give the probability of the conditions that follow.

More about KGYY

Forecasts from the US National Weather Service Aviation Weather Center. Times are UTC (Zulu). For planning and education only — always confirm with an official preflight briefing.

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