// Station · 19m ago

KAAT

Alturas Municipal Airport

CAT VFR

WIND 270° / 5 kt

VIS 10+ SM

CEILING Few/scattered only

T/Td 16.7°C / 3.9°C

ALTIM 30.13 inHg

ELEV 4,378 FT

41.4827°N / 120.5657°W

LOCATION · Alturas, US

WIND

270°5 kt

KAAT · 4,378 FT

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

METRIC

NOW · 19Z

+6H

+12H

+18H

WIND

270°/5

VIS

10+ SM

CEILING

—

LAYERS

FEW075

T / Td

17 / 4

ALTIM

30.13"

// Interpretation

VFR with light winds at 270°/5 kt. Visibility better than 10 statute miles and a few at 7,500 ft. 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 KAAT 301955Z AUTO 27005KT 10SM FEW075 17/04 A3013 RMK AO2 SLP186 T01670039

KAAT · day 30 at 19:55 UTC · wind from 270° at 5 kt · visibility 10+ SM · a few clouds at 7,500 ft · temp 17°C / dewpoint 4°C · altimeter 30.13" Hg · automated station w/ precipitation discriminator · sea-level pressure 1018.6 mb

// Runway analysis · computed from current METAR wind

Wind 270° @ 5 kt

2 USABLE · 2 AVOID

WIND

270°5 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

31★ HDG 310° H4 kt X3 kt LEFT PRIMARY · 4,228'

21 HDG 210° H3 kt X4 kt RIGHT 2,506'

TAILWIND ENDS · AVOID 2 ends

03 HDG 030° T3 kt X4 kt LEFT —

13 HDG 130° T4 kt X3 kt RIGHT —

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 +10°C

5,400FT

+1,022 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↗ +600 FT

24h AGO18h12h6hNOW

FIELD ELEV4,378 FT OAT+17°C ISA DELTA+10°C PRESSURE ALT4,166 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 SIGNIFICANT

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+54%

-38%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+38%

-24%

Light jetCJ4, Phenom 300, M2

+22%

-16%

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

// Reported layers (highest → lowest)

FEW075

Few · base 7,500 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER7,500 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL12,812 ft VFR MARGINunlimited

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

12:33ZSUNRISE

20:01ZSOLAR NOON

03:29ZSUNSET

04:02ZCIVIL END

CURRENT20:14Z DAYLIGHT REMAINING7h 14m VFR NIGHT BEGINS04:02Z (7h 47m) DAY LENGTH14h 55m

Full Moon

ILLUMINATION100% MOONRISE00:01Z MOONSET14:57Z FULL MOON IN1 day

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

KLKV

VFR

Lake County Airport · Lakeview

WIND: VRB / 3 kt
VIS: 10+ SM
CEILING: BKN042
DIST: 41 NM N
AGE: 21m ago

KLMT

VFR

Crater Lake-Klamath Regional Airport · Klamath Falls

WIND: CALM
VIS: 10+ SM
CEILING: SCT050
DIST: 66 NM NW
AGE: 21m ago

KSVE

VFR

Susanville Municipal Airport · Susanville

WIND: 260° / 8 kt
VIS: 10+ SM
CEILING: CLR
DIST: 66 NM S
AGE: 19m ago

KO05

VFR

Rogers Field · Chester

WIND: 140° / 9 kt
VIS: 10+ SM
CEILING: FEW050
DIST: 78 NM SW
AGE: 19m ago

KSIY

VFR

Siskiyou County Airport · Montague

WIND: 350° / 7 kt
VIS: 10+ SM
CEILING: SCT060
DIST: 87 NM W
AGE: 21m ago

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

AIRSPACE

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