KAPC TAF

Terminal aerodrome forecast for Napa County (APC · KAPC), Napa, CA. Issued 5 Nov 2026 1121Z, valid 1200Z to 1200Z, decoded period by period below. · Open on the map

All of Napa County — runways, frequencies, charts and live weather

TAF issued 5 Nov 2026 1121Z

valid 1200Z to 1200Z

TAF KAPC 051121Z 0512/0612 00000KT 2SM BR SCT005 TEMPO 0512/0516 1/2SM FG OVC002 FM051600 25004KT P6SM SKC FM060400 30002KT P6SM SKC FM061100 VRB02KT P6SM SCT010

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

Period by period

Period (UTC)	Change	Wind	Vis	Ceiling	Sky	Cat
1200Z to 1600Z	Initial	Calm	2 SM	Clear	Scattered at 500 ft AGL	IFR

1200Z to 1600Z	TEMPO	No change	0.5 SM	200 ft OVC	Overcast at 200 ft AGL	LIFR

1600Z to 0400Z	FM	250° at 4 kt	6+ SM	Clear	Clear below 12,000 ft	VFR

0400Z to 1100Z	FM	300° at 2 kt	6+ SM	Clear	Clear below 12,000 ft	VFR

1100Z to 1200Z	FM	Variable at 2 kt	6+ SM	Clear	Scattered at 1,000 ft AGL	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

IFR: Instrument flight rules — ceiling 500 to 999 ft and/or visibility 1 to less than 3 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 KAPC?

The forecast issued 5 Nov 2026 1121Z for Napa County reads: TAF KAPC 051121Z 0512/0612 00000KT 2SM BR SCT005 TEMPO 0512/0516 1/2SM FG OVC002 FM051600 25004KT P6SM SKC FM060400 30002KT P6SM SKC FM061100 VRB02KT P6SM SCT010

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 KAPC

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.

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