KJST TAF
Terminal aerodrome forecast for John Murtha Johnstown/Cambria County (JST · KJST), Johnstown, PA. Issued 4 Nov 2026 2328Z, valid 0000Z to 0000Z, decoded period by period below. · Open on the map
All of John Murtha Johnstown/Cambria County — runways, frequencies, charts and live weatherTAF issued 4 Nov 2026 2328Z
valid 0000Z to 0000ZLow level wind shear forecast 0500Z to 1000Z: wind 200° at 38 kt at 2,000 ft AGL.
TAF KJST 042328Z 0500/0524 16008G18KT P6SM VCSH BKN100 FM050500 18008KT 5SM -SHRA BR BKN025 WS020/20038KT FM051000 20008KT 2SM -SHRA BR BKN009 OVC015 FM051200 22008KT 4SM -SHRA BR BKN015 FM051400 24010G18KT P6SM BKN025 FM052000 23010G20KT P6SM BKN035
Times are UTC (Zulu), as they appear in the bulletin.
Period by period
| Period (UTC) | Change | Wind | Vis | Ceiling | Sky | Cat |
|---|---|---|---|---|---|---|
| 0000Z to 0500Z | Initial | 160° at 8-18 kt | 6+ SM | 10,000 ft BKN | Broken at 10,000 ft AGL | VFR |
| 0500Z to 1000Z | FM | 180° at 8 kt | 5 SM | 2,500 ft BKN | Broken at 2,500 ft AGL | MVFR |
| ||||||
| 1000Z to 1200Z | FM | 200° at 8 kt | 2 SM | 900 ft BKN | Broken at 900 ft AGL, Overcast at 1,500 ft AGL | IFR |
| 1200Z to 1400Z | FM | 220° at 8 kt | 4 SM | 1,500 ft BKN | Broken at 1,500 ft AGL | MVFR |
| 1400Z to 2000Z | FM | 240° at 10-18 kt | 6+ SM | 2,500 ft BKN | Broken at 2,500 ft AGL | MVFR |
| 2000Z to 0000Z | FM | 230° at 10-20 kt | 6+ SM | 3,500 ft BKN | Broken at 3,500 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.
- IFR
- Instrument flight rules — ceiling 500 to 999 ft and/or visibility 1 to less than 3 SM.
Frequently asked
What is the current TAF for KJST?
The forecast issued 4 Nov 2026 2328Z for John Murtha Johnstown/Cambria County reads: TAF KJST 042328Z 0500/0524 16008G18KT P6SM VCSH BKN100 FM050500 18008KT 5SM -SHRA BR BKN025 WS020/20038KT FM051000 20008KT 2SM -SHRA BR BKN009 OVC015 FM051200 22008KT 4SM -SHRA BR BKN015 FM051400 24010G18KT P6SM BKN025 FM052000 23010G20KT P6SM BKN035
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.
Something here wrong or out of date? Report a data problem.