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// STALE Observation is 1h 7m old — METAR cadence is typically hourly. A fresh report may be on its way.

// Station · 1h 7m ago · STALE

KGFA

Malmstrom Air Force Base
CAT VFR
WIND 300° / 7 kt
VIS 10+ SM
CEILING OVC at 6,500 ft
T/Td 15°C / 13.7°C
ALTIM 29.92 inHg
WX -RA
ELEV 3,472 FT
47.5047°N / 111.1870°W
LOCATION · Great Falls, US
N
WIND
300°7 kt
KGFA · 3,472 FT
© OSM · CartoDB

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

METRIC
NOW · 19Z
+6H
+12H
+18H
WIND
300°/7
 
 
 
VIS
10+ SM
 
 
 
CEILING
OVC065
 
 
 
LAYERS
OVC065
 
 
 
T / Td
15 / 14
 
 
 
ALTIM
29.92"
 
 
 

// Interpretation

VFR — ceiling 6,500 ft. Light winds at 300°/7 kt, visibility better than 10 statute miles, overcast at 6,500 ft. Reported weather: -RA. 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 KGFA 301955Z 30007KT 10SM -RA OVC065 15/14 A2992 RMK AO2A SLP129 P0005 T01500137 $

KGFA · day 30 at 19:55 UTC · wind from 300° at 7 kt · visibility 10+ SM · overcast at 6,500 ft · temp 15°C / dewpoint 14°C · altimeter 29.92" Hg · weather: -RA · sea-level pressure 1012.9 mb

// Runway analysis

No runway data on file for KGFA.

// Density altitude · ISA +7°C

4,300FT
+828 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↘ -1,900 FT
6,500 5,200 3,900
24h AGO18h12h6hNOW
FIELD ELEV3,472 FT OAT+15°C ISA DELTA+7°C PRESSURE ALT3,469 FT
// Performance equivalent Operating here right now feels like operating at KHWQ (Wheatland County Airport at Harlowton, Harlowton, elev 4,311 ft) on a standard ISA day.
// Aircraft performance impact SIGNIFICANT
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+43%
-30%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+30%
-19%
Light jetCJ4, Phenom 300, M2
+17%
-13%

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.

// Cloud layers · 1 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 11,048 FT OVC065 · CEILING KGFA ELEV · 3,472 FT
// Reported layers (highest → lowest)
OVC065
Overcast · base 6,500 ft AGL · 8 oktas
// Computed
CEILING6,500 ft AGL HIGHEST LAYER6,500 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL11,048 ft VFR MARGIN+3,500 ft

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

11:34ZSUNRISE
19:23ZSOLAR NOON
03:13ZSUNSET
03:52ZCIVIL END
CURRENT21:02Z DAYLIGHT REMAINING6h 10m VFR NIGHT BEGINS03:52Z (6h 49m) DAY LENGTH15h 38m
Full Moon
ILLUMINATION100% MOONRISE23:04Z MOONSET14:42Z FULL MOON IN1 day

// Nearest reporting stations · 5 shown · 100 NM (sparse area)

// Area map · 100 NM radius · CartoDB Dark Matter + aeronautical overlay

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