KPWM TAF

Terminal aerodrome forecast for Portland International Jetport (PWM · KPWM), Portland, ME. Issued 21 Sep 2026 0326Z, valid 0300Z to 0000Z, decoded period by period below. · Open on the map

All of Portland International Jetport — runways, frequencies, charts and live weather

TAF issued 21 Sep 2026 0326Z

valid 0300Z to 0000Z

TAF KPWM 210326Z 2103/2124 01004KT P6SM OVC010 TEMPO 2103/2105 BKN004 FM210700 35006KT P6SM BKN018 FM211000 35006KT P6SM VCFG FEW002 SCT050 FM211200 35008KT P6SM SKC

Times are UTC (Zulu), as they appear in the bulletin.

Period by period

Period (UTC)	Change	Wind	Vis	Ceiling	Sky	Cat
0300Z to 0700Z	Initial	010° at 4 kt	6+ SM	1,000 ft OVC	Overcast at 1,000 ft AGL	MVFR
0300Z to 0500Z	TEMPO	Calm	n/a	400 ft BKN	Broken at 400 ft AGL	LIFR
0700Z to 1000Z	FM	350° at 6 kt	6+ SM	1,800 ft BKN	Broken at 1,800 ft AGL	MVFR
1000Z to 1200Z	FM	350° at 6 kt	6+ SM	Clear	Few at 200 ft AGL, Scattered at 5,000 ft AGL	VFR
1200Z to 0000Z	FM	350° at 8 kt	6+ SM	Clear	Clear below 12,000 ft	VFR

What the change groups mean

TEMPO: Temporary — expected for less than half the period, in spells under an hour.
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.
LIFR: Low IFR — ceiling below 500 ft and/or visibility less than 1 SM.
VFR: Visual flight rules — ceiling above 3,000 ft and visibility greater than 5 SM.

Frequently asked

What is the current TAF for KPWM?

The forecast issued 21 Sep 2026 0326Z for Portland International Jetport reads: TAF KPWM 210326Z 2103/2124 01004KT P6SM OVC010 TEMPO 2103/2105 BKN004 FM210700 35006KT P6SM BKN018 FM211000 35006KT P6SM VCFG FEW002 SCT050 FM211200 35008KT P6SM SKC

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 KPWM

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.