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// Station · 10h 29m ago · STALE · HARD STALE

KGFA

Malmstrom Air Force Base
CAT LIFR
WIND 270° / 4 kt
VIS 3.0 SM
CEILING OVC at 400 ft
T/Td 0°C / -1°C
ALTIM 30.04 inHg
WX BR
ELEV 3,472 FT
47.5047°N / 111.1870°W
LOCATION · Great Falls, US
N
WIND
270°4 kt
KGFA · 3,472 FT
© OSM · CartoDB

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

METRIC
NOW · 17Z
+6H
+12H
+18H
WIND
270°/4
 
 
 
VIS
3.0 SM
 
 
 
CEILING
OVC004
 
 
 
LAYERS
OVC004
 
 
 
T / Td
0 / -1
 
 
 
ALTIM
30.04"
 
 
 

// Interpretation

LIFR — ceiling 400 ft. Light winds at 270°/4 kt, visibility 3.0 SM, overcast at 400 ft. Reported weather: mist (BR). Mist is water droplets thinning visibility to between 5/8 and 6 SM — the moist, lighter cousin of fog. LIFR is the lowest standard category. Would improve to IFR above 500 ft and 1 SM.

Loading TAF forecast narrative…

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

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// Raw observation METAR string + decoded

METAR KGFA 121755Z 27004KT 3SM BR OVC004 00/M01 A3004 RMK AO2A SLPNO WNDDATA ESTMD ALSTG ESTMD 4/005 $

KGFA · day 12 at 17:55 UTC · wind from 270° at 4 kt · visibility 3.0 SM · overcast at 400 ft · temp 0°C / dewpoint -1°C · altimeter 30.04" Hg · weather: mist (BR)

// Runway analysis

No runway data on file for KGFA.

// Density altitude · ISA -8°C

2,300FT
-1,172 FT BELOW FIELD ELEV
// DA · LAST 24 HOURS loading…
FIELD ELEV3,472 FT OAT+0°C ISA DELTA-8°C PRESSURE ALT3,348 FT
// Performance equivalent Operating here right now feels like operating at KGGW (Glasgow Valley County Airport Wokal Field, Glasgow, elev 2,296 ft) on a standard ISA day.
// Aircraft performance impact ENHANCED
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+23%
-16%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+16%
-10%
Light jetCJ4, Phenom 300, M2
+9%
-7%

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 · 1 reported · highest to lowest

FT 0 5k 10k 15k 20k 25k FRZ LVL · 3,472 FT OVC004 · CEILING KGFA ELEV · 3,472 FT
// Reported layers (highest → lowest)
OVC004
Overcast · base 400 ft AGL · 8 oktas
// Computed
CEILING400 ft AGL HIGHEST LAYER400 ft TOTAL COVERAGE~100% (overcast) FREEZING LEVEL3,472 ft VFR MARGIN-2,600 ft

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

13:40ZSUNRISE
19:12ZSOLAR NOON
00:44ZSUNSET
01:15ZCIVIL END
CURRENT04:24Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS01:15Z (past) DAY LENGTH11h 04m
Waxing Crescent
ILLUMINATION4% MOONRISE15:07Z MOONSET02:12Z FULL MOON IN13 days

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