KATW TAF

Terminal aerodrome forecast for Appleton International (ATW · KATW), Appleton, WI. Issued 21 Sep 2026 0520Z, valid 0600Z to 0600Z, decoded period by period below. · Open on the map

All of Appleton International — runways, frequencies, charts and live weather

TAF issued 21 Sep 2026 0520Z

valid 0600Z to 0600Z

TAF KATW 210520Z 2106/2206 03011KT P6SM FEW035 BKN250 FM210800 05009KT P6SM SCT030 BKN250 FM211500 05009G17KT P6SM BKN030 BKN250 FM212300 05009KT P6SM SCT035 BKN250

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

Period by period

Period (UTC)	Change	Wind	Vis	Ceiling	Sky	Cat
0600Z to 0800Z	Initial	030° at 11 kt	6+ SM	25,000 ft BKN	Few at 3,500 ft AGL, Broken at 25,000 ft AGL	VFR
0800Z to 1500Z	FM	050° at 9 kt	6+ SM	25,000 ft BKN	Scattered at 3,000 ft AGL, Broken at 25,000 ft AGL	VFR
1500Z to 2300Z	FM	050° at 9-17 kt	6+ SM	3,000 ft BKN	Broken at 3,000 ft AGL, Broken at 25,000 ft AGL	MVFR
2300Z to 0600Z	FM	050° at 9 kt	6+ SM	25,000 ft BKN	Scattered at 3,500 ft AGL, Broken at 25,000 ft AGL	VFR

What the change groups mean

FM: From — a rapid, permanent change to the conditions that follow.

What the categories mean

VFR: Visual flight rules — ceiling above 3,000 ft and visibility greater than 5 SM.
MVFR: Marginal VFR — ceiling 1,000 to 3,000 ft and/or visibility 3 to 5 SM.

Frequently asked

What is the current TAF for KATW?

The forecast issued 21 Sep 2026 0520Z for Appleton International reads: TAF KATW 210520Z 2106/2206 03011KT P6SM FEW035 BKN250 FM210800 05009KT P6SM SCT030 BKN250 FM211500 05009G17KT P6SM BKN030 BKN250 FM212300 05009KT P6SM SCT035 BKN250

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 KATW

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.

Something here wrong or out of date? Report a data problem.