// Station · 24m ago

KLLJ

Challis Airport

CAT VFR

WIND CALM

VIS 10+ SM

CEILING Few/scattered only

T/Td 0°C / -1.7°C

ALTIM 30.02 inHg

ELEV 5,072 FT

44.5230°N / 114.2180°W

LOCATION · Challis, US

WIND

000°0 kt

KLLJ · 5,072 FT

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

METRIC

NOW · 11Z

+6H

+12H

+18H

WIND

CALM

VIS

10+ SM

CEILING

—

LAYERS

SCT090

T / Td

0 / -2

ALTIM

30.02"

// Interpretation

VFR with winds calm. Visibility better than 10 statute miles and scattered at 9,000 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 KLLJ 131155Z AUTO 00000KT 10SM SCT090 00/M02 A3002 RMK AO2 SLP166 70001 T00001017 10022 21011 53007

KLLJ · day 13 at 11:55 UTC · winds calm · visibility 10+ SM · scattered layer at 9,000 ft · temp 0°C / dewpoint -2°C · altimeter 30.02" Hg · automated station w/ precipitation discriminator · sea-level pressure 1016.6 mb

// 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

17 HDG 170° —CALM —— 4,601'

35 HDG 350° —CALM —— 4,601'

Pattern altitude: 6,072 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 -5°C

4,300FT

-772 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV5,072 FT OAT+0°C ISA DELTA-5°C PRESSURE ALT4,969 FT

// Performance equivalent Operating here right now feels like operating at KTWF (Joslin Field Magic Valley Regional Airport, Twin Falls, elev 4,154 ft) on a standard ISA day.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+43%

-30%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+30%

-19%

Light jetCJ4, Phenom 300, M2

+17%

-13%

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

// Reported layers (highest → lowest)

SCT090

Scattered · base 9,000 ft AGL · ~3–4 oktas

// Computed

CEILING— HIGHEST LAYER9,000 ft TOTAL COVERAGE~40% (mixed) FREEZING LEVEL5,072 ft VFR MARGINunlimited

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

13:50ZSUNRISE

19:24ZSOLAR NOON

00:57ZSUNSET

01:27ZCIVIL END

CURRENT12:19Z DAYLIGHT REMAINING12h 38m VFR NIGHT BEGINS01:27Z (13h 07m) DAY LENGTH11h 07m

Waxing Crescent

ILLUMINATION5% MOONRISE15:34Z MOONSET02:41Z 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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