// Station · 16m ago

K77S

Hobby Field

CAT VFR

WIND CALM

VIS 10+ SM

CEILING Few/scattered only

T/Td 2°C / 1°C

ALTIM 30.11 inHg

ELEV 538 FT

43.9308°N / 123.0070°W

LOCATION · Creswell, US

WIND

000°0 kt

K77S · 538 FT

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

METRIC

NOW · 06Z

+6H

+12H

+18H

WIND

CALM

VIS

10+ SM

CEILING

—

LAYERS

FEW035 FEW047

T / Td

2 / 1

ALTIM

30.11"

// Interpretation

VFR with winds calm. Visibility better than 10 statute miles and a few at 3,500 ft, and a few at 4,700 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 K77S 130615Z AUTO 00000KT 10SM FEW035 FEW047 02/01 A3011 RMK AO2

K77S · day 13 at 06:15 UTC · winds calm · visibility 10+ SM · a few clouds at 3,500 ft · a few clouds at 4,700 ft · temp 2°C / dewpoint 1°C · altimeter 30.11" Hg · automated station w/ precipitation discriminator

// Runway analysis · computed from current METAR wind

Wind CALM

ALL USABLE · WINDS CALM

WIND

000°calm

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

15 HDG 150° —CALM —— 3,101'

33 HDG 330° —CALM —— 3,101'

Pattern altitude: 1,538 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

-1,100FT

-1,638 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV538 FT OAT+2°C ISA DELTA-12°C PRESSURE ALT346 FT

// Performance equivalent Your aircraft will perform as if it's at a field -1,100 ft high on a standard ISA day — that's -1,638 ft above K77S's actual elevation.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+0%

-0%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+0%

-0%

Light jetCJ4, Phenom 300, M2

+0%

-0%

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 · 2 reported · highest to lowest

// Reported layers (highest → lowest)

FEW047

Few · base 4,700 ft AGL · ~1–2 oktas

FEW035

Few · base 3,500 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER4,700 ft TOTAL COVERAGE~23% (sparse) FREEZING LEVEL1,548 ft VFR MARGINunlimited

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

14:23ZSUNRISE

19:59ZSOLAR NOON

01:35ZSUNSET

02:04ZCIVIL END

CURRENT06:31Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS02:04Z (past) DAY LENGTH11h 11m

Waxing Crescent

ILLUMINATION4% MOONRISE15:55Z MOONSET03:07Z FULL MOON IN13 days

// Nearest reporting stations

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

AIRSPACE

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