Great Falls International Airport

KGTF / GTF / GTF

Great Falls, MT

3,680 ft MSL

Medium AirportToweredScheduled ServiceMETARTAF

View on Map Website Wikipedia

Terminal Aerodrome Forecast

Issued: Sun, Feb 22, 21:42 UTC

Valid From

Sun, Feb 22, 22:00 UTC

→

Valid To

Mon, Feb 23, 18:00 UTC

Duration

20 hours

Raw TAF

TAF KGTF 222142Z 2222/2318 10009KT P6SM SKC FM230100 13009KT P6SM SKC FM230400 18009KT P6SM SKC FM230600 22011G18KT P6SM FEW200 FM231700 24020G38KT P6SM SCT200

Hourly Forecast Grid

TAF periods expanded to hourly time slots. Scroll horizontally to see the full forecast.

Time	22Z	23Z	Feb 2300Z	01Z	02Z	03Z	04Z	05Z	06Z	07Z	08Z	09Z	10Z	11Z	12Z	13Z	14Z	15Z	16Z	17Z
Category	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR
Weather
Vis (SM)	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+
Ceiling (ft)	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR
Wind Dir	100	100	100	130	130	130	180	180	220	220	220	220	220	220	220	220	220	220	220	240
Wind (kt)	9	9	9	9	9	9	9	9	11	11	11	11	11	11	11	11	11	11	11	20
Gusts (kt)	—	—	—	—	—	—	—	—	18	18	18	18	18	18	18	18	18	18	18	38
Period	BASE	BASE	BASE	FM	FM	FM	FM	FM	FM	FM	FM	FM	FM	FM	FM	FM	FM	FM	FM	FM

Change types:FM = FromBECMG = BecomingTEMPO = TemporaryPROB = ProbabilityTimes in UTC (Zulu)

Forecast Periods

5 forecast periods decoded from the TAF

TAF KGTF 222142Z 2222/2318 10009KT P6SM SKC FM230100 13009KT P6SM SKC FM230400 18009KT P6SM SKC FM230600 22011G18KT P6SM FEW200 FM231700 24020G38KT P6SM SCT200

Valid: Feb 22, 22:00 UTC to Feb 23, 18:00 UTC

BASEFeb 22, 22:00 UTC — Feb 23, 01:00 UTC

Wind: 100° at 9 kt

Vis: 6+ SM

Clouds: Sky Clear

FMFeb 23, 01:00 UTC — Feb 23, 04:00 UTC

Wind: 130° at 9 kt

Vis: 6+ SM

Clouds: Sky Clear

FMFeb 23, 04:00 UTC — Feb 23, 06:00 UTC

Wind: 180° at 9 kt

Vis: 6+ SM

Clouds: Sky Clear

FMFeb 23, 06:00 UTC — Feb 23, 17:00 UTC

Wind: 220° at 11 kt, gusting 18 kt

Vis: 6+ SM

Clouds: Few 20,000 ft

FMFeb 23, 17:00 UTC — Feb 23, 18:00 UTC

Wind: 240° at 20 kt, gusting 38 kt

Vis: 6+ SM

Clouds: Scattered 20,000 ft

Daylight

Sunrise, sunset, and civil twilight for Great Falls International Airport

Sunrise: 14:17ZSunset: 01:01ZDay length: 10h 44m

TAF data sourced from Aviation Weather Center (aviationweather.gov). Refreshed every 10 minutes. This information is for reference only and should not be used for flight planning.

Great Falls International Airport

KGTF / GTF / GTF

Great Falls, MT

3,680 ft MSL

Medium AirportToweredScheduled ServiceMETARTAF

View on Map Website Wikipedia

Terminal Aerodrome Forecast

Issued: Sun, Feb 22, 21:42 UTC

Valid From

Sun, Feb 22, 22:00 UTC

→

Valid To

Mon, Feb 23, 18:00 UTC

Duration

20 hours

Raw TAF

TAF KGTF 222142Z 2222/2318 10009KT P6SM SKC FM230100 13009KT P6SM SKC FM230400 18009KT P6SM SKC FM230600 22011G18KT P6SM FEW200 FM231700 24020G38KT P6SM SCT200

Hourly Forecast Grid

TAF periods expanded to hourly time slots. Scroll horizontally to see the full forecast.

Time	22Z	23Z	Feb 2300Z	01Z	02Z	03Z	04Z	05Z	06Z	07Z	08Z	09Z	10Z	11Z	12Z	13Z	14Z	15Z	16Z	17Z
Category	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR	VFR
Weather
Vis (SM)	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+	6+
Ceiling (ft)	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR	CLR
Wind Dir	100	100	100	130	130	130	180	180	220	220	220	220	220	220	220	220	220	220	220	240
Wind (kt)	9	9	9	9	9	9	9	9	11	11	11	11	11	11	11	11	11	11	11	20
Gusts (kt)	—	—	—	—	—	—	—	—	18	18	18	18	18	18	18	18	18	18	18	38
Period	BASE	BASE	BASE	FM	FM	FM	FM	FM	FM	FM	FM	FM	FM	FM	FM	FM	FM	FM	FM	FM

Change types:FM = FromBECMG = BecomingTEMPO = TemporaryPROB = ProbabilityTimes in UTC (Zulu)

Forecast Periods

5 forecast periods decoded from the TAF

TAF KGTF 222142Z 2222/2318 10009KT P6SM SKC FM230100 13009KT P6SM SKC FM230400 18009KT P6SM SKC FM230600 22011G18KT P6SM FEW200 FM231700 24020G38KT P6SM SCT200

Valid: Feb 22, 22:00 UTC to Feb 23, 18:00 UTC

BASEFeb 22, 22:00 UTC — Feb 23, 01:00 UTC

Wind: 100° at 9 kt

Vis: 6+ SM

Clouds: Sky Clear

FMFeb 23, 01:00 UTC — Feb 23, 04:00 UTC

Wind: 130° at 9 kt

Vis: 6+ SM

Clouds: Sky Clear

FMFeb 23, 04:00 UTC — Feb 23, 06:00 UTC

Wind: 180° at 9 kt

Vis: 6+ SM

Clouds: Sky Clear

FMFeb 23, 06:00 UTC — Feb 23, 17:00 UTC

Wind: 220° at 11 kt, gusting 18 kt

Vis: 6+ SM

Clouds: Few 20,000 ft

FMFeb 23, 17:00 UTC — Feb 23, 18:00 UTC

Wind: 240° at 20 kt, gusting 38 kt

Vis: 6+ SM

Clouds: Scattered 20,000 ft

Daylight

Sunrise, sunset, and civil twilight for Great Falls International Airport

Sunrise: 14:17ZSunset: 01:01ZDay length: 10h 44m

TAF data sourced from Aviation Weather Center (aviationweather.gov). Refreshed every 10 minutes. This information is for reference only and should not be used for flight planning.