KPSM TAF
Terminal aerodrome forecast for Portsmouth International At Pease (PSM · KPSM), Portsmouth, NH. Issued 21 Sep 2026 0158Z, valid 0200Z to 0000Z, decoded period by period below. · Open on the map
All of Portsmouth International At Pease — runways, frequencies, charts and live weatherTAF issued 21 Sep 2026 0158Z
valid 0200Z to 0000ZTAF KPSM 210158Z 2102/2124 03004KT 2SM -DZ BR BKN003 OVC012 FM211100 35005KT P6SM BKN025 FM211200 35009KT P6SM BKN250
Times are UTC (Zulu), as they appear in the bulletin.
Period by period
| Period (UTC) | Change | Wind | Vis | Ceiling | Sky | Cat |
|---|---|---|---|---|---|---|
| 0200Z to 1100Z | Initial | 030° at 4 kt | 2 SM | 300 ft BKN | Broken at 300 ft AGL, Overcast at 1,200 ft AGL | LIFR |
| 1100Z to 1200Z | FM | 350° at 5 kt | 6+ SM | 2,500 ft BKN | Broken at 2,500 ft AGL | MVFR |
| 1200Z to 0000Z | FM | 350° at 9 kt | 6+ SM | 25,000 ft BKN | 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
- LIFR
- Low IFR — ceiling below 500 ft and/or visibility less than 1 SM.
- MVFR
- Marginal VFR — ceiling 1,000 to 3,000 ft and/or visibility 3 to 5 SM.
- VFR
- Visual flight rules — ceiling above 3,000 ft and visibility greater than 5 SM.
Frequently asked
What is the current TAF for KPSM?
The forecast issued 21 Sep 2026 0158Z for Portsmouth International At Pease reads: TAF KPSM 210158Z 2102/2124 03004KT 2SM -DZ BR BKN003 OVC012 FM211100 35005KT P6SM BKN025 FM211200 35009KT P6SM 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 KPSM
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Something here wrong or out of date?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.