KDSM TAF

Terminal aerodrome forecast for Des Moines International (DSM · KDSM), Des Moines, IA. Issued 20 Sep 2026 2336Z, valid 0000Z to 0000Z, decoded period by period below. · Open on the map

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TAF issued 20 Sep 2026 2336Z

valid 0000Z to 0000Z

TAF KDSM 202336Z 2100/2124 06011KT P6SM SCT009 OVC012 FM210200 06009KT P6SM OVC009 TEMPO 2102/2105 5SM -DZ OVC006 FM210500 06008KT 5SM -DZ BR OVC008 FM211500 06008KT 4SM -SHRA BR OVC007

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	060° at 11 kt	6+ SM	1,200 ft OVC	Scattered at 900 ft AGL, Overcast at 1,200 ft AGL	MVFR
0200Z to 0500Z	FM	060° at 9 kt	6+ SM	900 ft OVC	Overcast at 900 ft AGL	IFR
0200Z to 0500Z	TEMPO	Calm	5 SM	600 ft OVC	Overcast at 600 ft AGL	IFR
0500Z to 1500Z	FM	060° at 8 kt	5 SM	800 ft OVC	Overcast at 800 ft AGL	IFR
1500Z to 0000Z	FM	060° at 8 kt	4 SM	700 ft OVC	Overcast at 700 ft AGL	IFR

What the change groups mean

FM: From — a rapid, permanent change to the conditions that follow.
TEMPO: Temporary — expected for less than half the period, in spells under an hour.

What the categories mean

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 KDSM?

The forecast issued 20 Sep 2026 2336Z for Des Moines International reads: TAF KDSM 202336Z 2100/2124 06011KT P6SM SCT009 OVC012 FM210200 06009KT P6SM OVC009 TEMPO 2102/2105 5SM -DZ OVC006 FM210500 06008KT 5SM -DZ BR OVC008 FM211500 06008KT 4SM -SHRA BR OVC007

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 KDSM

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.