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// Station · 1d ago · STALE · HARD STALE

KAAT

Alturas Municipal Airport
CAT VFR
WIND CALM
VIS 10+ SM
CEILING CLR
T/Td 18.3°C / -3.3°C
ALTIM 30.15 inHg
ELEV 4,378 FT
41.4827°N / 120.5657°W
LOCATION · Alturas, US
N
WIND
000°0 kt
KAAT · 4,378 FT
© OSM · CartoDB

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

METRIC
NOW · 16Z
+6H
+12H
+18H
WIND
CALM
 
 
 
VIS
10+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
18 / -3
 
 
 
ALTIM
30.15"
 
 
 

// Interpretation

VFR with winds calm. 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.

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

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// Raw observation METAR string + decoded

METAR KAAT 271655Z AUTO 00000KT 10SM CLR 18/M03 A3015 RMK AO2 SLP170 T01831033

KAAT · day 27 at 16:55 UTC · winds calm · visibility 10+ SM · temp 18°C / dewpoint -3°C · altimeter 30.15" Hg · automated station w/ precipitation discriminator · sea-level pressure 1017.0 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 4 ends
13 HDG 130° CALM 4,228'
31 HDG 310° CALM 4,228'
03 HDG 030° CALM 2,506'
21 HDG 210° CALM 2,506'
Pattern altitude: 5,378 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 +12°C

5,500FT
+1,122 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS loading…
FIELD ELEV4,378 FT OAT+18°C ISA DELTA+12°C PRESSURE ALT4,145 FT
// Performance equivalent Operating here right now feels like operating at KBLU (Blue Canyon Nyack Airport, Emigrant Gap, elev 5,284 ft) on a standard ISA day.
// Aircraft performance impact MODERATE
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+55%
-39%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+39%
-25%
Light jetCJ4, Phenom 300, M2
+22%
-17%

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

FT 0 5k 10k 15k 20k 25k FRZ LVL · 13,620 FT KAAT ELEV · 4,378 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL13,620 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-8)

13:25ZSUNRISE
20:05ZSOLAR NOON
02:44ZSUNSET
03:12ZCIVIL END
CURRENT01:15Z DAYLIGHT REMAINING1h 28m VFR NIGHT BEGINS03:12Z (1h 57m) DAY LENGTH13h 18m
Waning Gibbous
ILLUMINATION99% MOONRISE02:12Z MOONSET15:31Z FULL MOON IN29 days

// Nearest reporting stations

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

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