KJST TAF
Terminal aerodrome forecast for John Murtha Johnstown Cambria County Airport (JST · KJST), Johnstown, PA. Issued 6 Aug 2026 2322Z, valid 0000Z to 0000Z, decoded period by period below.
All of John Murtha Johnstown Cambria County Airport — runways, frequencies, charts and live weatherTAF issued 6 Aug 2026 2322Z
valid 0000Z to 0000ZTAF KJST 062322Z 0700/0724 27004KT P6SM VCSH BKN050 FM070200 VRB03KT P6SM SCT080 FM070500 23003KT 3SM BR VCFG SCT002 FM071300 24004KT P6SM SCT010 OVC050 FM071800 24006KT P6SM VCTS BKN050CB
Times are UTC (Zulu), as they appear in the bulletin.
Period by period
| Period (UTC) | Change | Wind | Vis | Ceiling | Sky | Cat |
|---|---|---|---|---|---|---|
| 0000Z to 0200Z | Initial | 270° at 4 kt | 6+ SM | 5,000 ft BKN | Broken at 5,000 ft AGL | VFR |
| 0200Z to 0500Z | FM | Variable at 3 kt | 6+ SM | Clear | Scattered at 8,000 ft AGL | VFR |
| 0500Z to 1300Z | FM | 230° at 3 kt | 3 SM | Clear | Scattered at 200 ft AGL | MVFR |
| 1300Z to 1800Z | FM | 240° at 4 kt | 6+ SM | 5,000 ft OVC | Scattered at 1,000 ft AGL, Overcast at 5,000 ft AGL | VFR |
| 1800Z to 0000Z | FM | 240° at 6 kt | 6+ SM | 5,000 ft BKN | Broken at 5,000 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 KJST?
The forecast issued 6 Aug 2026 2322Z for John Murtha Johnstown Cambria County Airport reads: TAF KJST 062322Z 0700/0724 27004KT P6SM VCSH BKN050 FM070200 VRB03KT P6SM SCT080 FM070500 23003KT 3SM BR VCFG SCT002 FM071300 24004KT P6SM SCT010 OVC050 FM071800 24006KT P6SM VCTS BKN050CB
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 KJST
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.