// Station · 14m ago

KGTF

Great Falls International Airport

CAT VFR

WIND 120° / 5 kt

VIS 10+ SM

CEILING CLR

T/Td -0.6°C / -2.2°C

ALTIM 29.95 inHg

ELEV 3,680 FT

47.4820°N / 111.3710°W

LOCATION · Great Falls, US

WIND

120°5 kt

KGTF · 3,680 FT

// Current + 24h forecast · METAR loaded · TAF loading…

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

120°/5

VIS

10+ SM

CEILING

CLR

LAYERS

—

T / Td

-1 / -2

ALTIM

29.95"

// Interpretation

VFR with light winds at 120°/5 kt. Visibility better than 10 statute miles and no reported cloud layers. Would shift to MVFR if the ceiling drops to 3,000 ft or visibility below 5 SM.

Loading TAF forecast narrative…

SOURCES · NOAA Aviation Weather Center METAR (TAF loading…)

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// Raw observation METAR string + decoded

METAR KGTF 130053Z 12005KT 10SM CLR M01/M02 A2995 RMK AO2 SLP182 T10061022 $

KGTF · day 13 at 00:53 UTC · wind from 120° at 5 kt · visibility 10+ SM · temp -1°C / dewpoint -2°C · altimeter 29.95" Hg · automated station w/ precipitation discriminator · sea-level pressure 1018.2 mb

// Runway analysis · computed from current METAR wind

Wind 120° @ 5 kt

4 USABLE · 2 AVOID

WIND

120°5 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 4 usable

07★ HDG 070° H3 kt X4 kt RIGHT PRIMARY · 4,294'

17 HDG 170° H3 kt X4 kt LEFT 6,030'

03 HDG 030° H0 kt X5 kt RIGHT 10,502'

21 HDG 210° H0 kt X5 kt LEFT 10,502'

TAILWIND ENDS · AVOID 2 ends

25 HDG 250° T3 kt X4 kt LEFT —

35 HDG 350° T3 kt X4 kt RIGHT —

Pattern altitude: 4,680 ft MSL (1,000 ft AGL). Verify pattern direction and altitude with the chart supplement before flying. // On calm winds (<3 kt), all runways are usable — favor the longest or whatever the pattern calls for.

// Density altitude · ISA -8°C

2,600FT

-1,080 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV3,680 FT OAT-1°C ISA DELTA-8°C PRESSURE ALT3,648 FT

// Performance equivalent Operating here right now feels like operating at KS59 (Libby Airport, Libby, elev 2,601 ft) on a standard ISA day.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+26%

-18%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+18%

-12%

Light jetCJ4, Phenom 300, M2

+10%

-8%

Approximate using ~10% perf loss / 1,000 ft DA for normally aspirated, scaled by powerplant type. Verify with your aircraft's POH for accurate numbers — especially above 5,000 ft DA where these rules of thumb diverge. Severity rating assumes a standard altimeter setting (29.92" Hg / 1013 hPa); a non-standard setting shifts the effective altitude by roughly 1,000 ft per 1" Hg of deviation.

// Cloud layers · clear · no layers reported

// Reported layers (highest → lowest)

CLR

No reported cloud layers — clear sky from surface to reporting ceiling.

// Computed

CEILING— HIGHEST LAYER— TOTAL COVERAGEclear FREEZING LEVEL3,680 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-7)

13:40ZSUNRISE

19:13ZSOLAR NOON

00:45ZSUNSET

01:16ZCIVIL END

CURRENT01:07Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS01:16Z (8m) DAY LENGTH11h 04m

Waxing Crescent

ILLUMINATION3% MOONRISE15:01Z MOONSET02:06Z FULL MOON IN13 days

// Nearest reporting stations

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// Area map · 60 NM radius · CartoDB Dark Matter + aeronautical overlay

AIRSPACE

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