KDEC TAF
Terminal aerodrome forecast for Decatur (DEC · KDEC), Decatur, IL. Issued 4 Nov 2026 2329Z, valid 0000Z to 0000Z, decoded period by period below. · Open on the map
All of Decatur — runways, frequencies, charts and live weatherTAF issued 4 Nov 2026 2329Z
valid 0000Z to 0000ZTAF KDEC 042329Z 0500/0524 24008KT P6SM BKN030 FM051700 25012G20KT P6SM VCSH BKN020
Times are UTC (Zulu), as they appear in the bulletin.
Period by period
| Period (UTC) | Change | Wind | Vis | Ceiling | Sky | Cat |
|---|---|---|---|---|---|---|
| 0000Z to 1700Z | Initial | 240° at 8 kt | 6+ SM | 3,000 ft BKN | Broken at 3,000 ft AGL | MVFR |
| 1700Z to 0000Z | FM | 250° at 12-20 kt | 6+ SM | 2,000 ft BKN | Broken at 2,000 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 KDEC?
The forecast issued 4 Nov 2026 2329Z for Decatur reads: TAF KDEC 042329Z 0500/0524 24008KT P6SM BKN030 FM051700 25012G20KT P6SM VCSH BKN020
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 KDEC
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Something here wrong or out of date?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.