KATY TAF
Terminal aerodrome forecast for Watertown Regional (ATY · KATY), Watertown, SD. Issued 21 Sep 2026 0225Z, valid 0200Z to 0000Z, decoded period by period below. · Open on the map
All of Watertown Regional — runways, frequencies, charts and live weatherTAF issued 21 Sep 2026 0225Z
valid 0200Z to 0000ZTAF KATY 210225Z 2102/2124 08008KT P6SM OVC025 FM210700 07008KT P6SM -SHRA OVC015 FM211300 08009KT P6SM OVC015 FM211800 08009KT P6SM BKN024
Times are UTC (Zulu), as they appear in the bulletin.
Period by period
| Period (UTC) | Change | Wind | Vis | Ceiling | Sky | Cat |
|---|---|---|---|---|---|---|
| 0200Z to 0700Z | Initial | 080° at 8 kt | 6+ SM | 2,500 ft OVC | Overcast at 2,500 ft AGL | MVFR |
| 0700Z to 1300Z | FM | 070° at 8 kt | 6+ SM | 1,500 ft OVC | Overcast at 1,500 ft AGL | MVFR |
| 1300Z to 1800Z | FM | 080° at 9 kt | 6+ SM | 1,500 ft OVC | Overcast at 1,500 ft AGL | MVFR |
| 1800Z to 0000Z | FM | 080° at 9 kt | 6+ SM | 2,400 ft BKN | Broken at 2,400 ft AGL | MVFR |
What the change groups mean
- 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.
Frequently asked
What is the current TAF for KATY?
The forecast issued 21 Sep 2026 0225Z for Watertown Regional reads: TAF KATY 210225Z 2102/2124 08008KT P6SM OVC025 FM210700 07008KT P6SM -SHRA OVC015 FM211300 08009KT P6SM OVC015 FM211800 08009KT P6SM BKN024
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 KATY
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Something here wrong or out of date?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.