KMTH TAF
Terminal aerodrome forecast for Florida Keys Marathon International Airport (MTH · KMTH), Marathon, FL. Issued 6 Aug 2026 2330Z, valid 0000Z to 0000Z, decoded period by period below.
All of Florida Keys Marathon International Airport — runways, frequencies, charts and live weatherTAF issued 6 Aug 2026 2330Z
valid 0000Z to 0000ZTAF KMTH 062330Z 0700/0724 06008KT P6SM SCT025 BKN250 PROB30 0702/0704 4SM TSRA BKN025CB FM071200 08007KT P6SM VCTS SCT030CB BKN250 FM071500 11007KT P6SM SCT025 BKN250
Times are UTC (Zulu), as they appear in the bulletin.
Period by period
| Period (UTC) | Change | Wind | Vis | Ceiling | Sky | Cat |
|---|---|---|---|---|---|---|
| 0000Z to 1200Z | Initial | 060° at 8 kt | 6+ SM | 25,000 ft BKN | Scattered at 2,500 ft AGL, Broken at 25,000 ft AGL | VFR |
| 0200Z to 0400Z | PROB | Calm | 4 SM | 2,500 ft BKN | Broken at 2,500 ft AGL | MVFR |
| 1200Z to 1500Z | FM | 080° at 7 kt | 6+ SM | 25,000 ft BKN | Scattered at 3,000 ft AGL, Broken at 25,000 ft AGL | VFR |
| 1500Z to 0000Z | FM | 110° at 7 kt | 6+ SM | 25,000 ft BKN | Scattered at 2,500 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 KMTH?
The forecast issued 6 Aug 2026 2330Z for Florida Keys Marathon International Airport reads: TAF KMTH 062330Z 0700/0724 06008KT P6SM SCT025 BKN250 PROB30 0702/0704 4SM TSRA BKN025CB FM071200 08007KT P6SM VCTS SCT030CB BKN250 FM071500 11007KT P6SM SCT025 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 KMTH
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.