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// Station · 22m ago

KGUS

Grissom Air Reserve Base
CAT VFR
WIND CALM
VIS 10+ SM
CEILING Few/scattered only
T/Td 22°C / 10.8°C
ALTIM 30.14 inHg
ELEV 812 FT
40.6481°N / 86.1521°W
LOCATION · Peru, US
N
WIND
000°0 kt
KGUS · 812 FT
© OSM · CartoDB

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

METRIC
NOW · 15Z
+6H
+12H
+18H
WIND
CALM
 
 
 
VIS
10+ SM
 
 
 
CEILING
 
 
 
LAYERS
FEW210
 
 
 
T / Td
22 / 11
 
 
 
ALTIM
30.14"
 
 
 

// Interpretation

VFR with winds calm. Visibility better than 10 statute miles and a few at 21,000 ft. Would shift to MVFR if the ceiling drops to 3,000 ft or visibility below 5 SM.

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

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// Raw observation METAR string + decoded

METAR KGUS 251555Z AUTO 00000KT 10SM FEW210 22/11 A3014 RMK AO2 SLP207 T02200108 TSNO $

KGUS · day 25 at 15:55 UTC · winds calm · visibility 10+ SM · a few clouds at 21,000 ft · temp 22°C / dewpoint 11°C · altimeter 30.14" Hg · automated station w/ precipitation discriminator · sea-level pressure 1020.7 mb

// Runway analysis · computed from current METAR wind

Wind CALM
ALL USABLE · WINDS CALM
N
WIND
000°calm
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS 2 ends
05 HDG 050° CALM 12,501'
23 HDG 230° CALM 12,501'
Pattern altitude: 1,812 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

1,600FT
+788 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS loading…
FIELD ELEV812 FT OAT+22°C ISA DELTA+8°C PRESSURE ALT591 FT
// Performance equivalent Operating here right now feels like operating at KRID (Richmond Municipal Airport, Richmond, elev 1,140 ft) on a standard ISA day.
// Aircraft performance impact MINOR
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+16%
-11%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+11%
-7%
Light jetCJ4, Phenom 300, M2
+6%
-5%

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 · 11,923 FT FEW210 KGUS ELEV · 812 FT
// Reported layers (highest → lowest)
FEW210
Few · base 21,000 ft AGL · ~1–2 oktas
// Computed
CEILING HIGHEST LAYER21,000 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL11,923 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-6)

11:06ZSUNRISE
17:48ZSOLAR NOON
00:30ZSUNSET
00:58ZCIVIL END
CURRENT16:17Z DAYLIGHT REMAINING8h 13m VFR NIGHT BEGINS00:58Z (8h 41m) DAY LENGTH13h 23m
Waxing Gibbous
ILLUMINATION94% MOONRISE21:08Z MOONSET10:32Z FULL MOON IN2 days

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

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