// Station · 8m ago

OISL

Lar Airport

CAT VFR

WIND CALM

VIS 6+ SM

CEILING Few/scattered only

T/Td 42°C / 6°C

ALTIM 29.68 inHg

ELEV 2,641 FT

27.6747°N / 54.3833°E

LOCATION · Lar, IR

WIND

000°0 kt

OISL · 2,641 FT

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

METRIC

NOW · 14Z

+6H

+12H

+18H

WIND

CALM

VIS

6+ SM

CEILING

—

LAYERS

FEW025

T / Td

42 / 6

ALTIM

29.68"

// Interpretation

VFR with winds calm. Visibility 6+ SM and a few at 2,500 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 OISL 251400Z 00000KT 9999 FEW025CB 42/06 Q1005 A2968 NOSIG

OISL · day 25 at 14:00 UTC · winds calm · visibility 6+ SM · a few clouds at 2,500 ft · temp 42°C / dewpoint 6°C · altimeter 29.68" Hg

// 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

09 HDG 090° —CALM —— 10,397'

27 HDG 270° —CALM —— 10,397'

Pattern altitude: 3,641 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 +33°C

6,800FT

+4,159 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV2,641 FT OAT+42°C ISA DELTA+33°C PRESSURE ALT2,883 FT

// Performance equivalent Operating here right now feels like operating at OIFS (Shahrekord Airport, Shahrekord, elev 6,723 ft) on a standard ISA day.

// Aircraft performance impact DANGEROUS

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+68%

-48%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+48%

-31%

Light jetCJ4, Phenom 300, M2

+27%

-20%

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)

FEW025

Few · base 2,500 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER2,500 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL23,853 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+4)

01:59ZSUNRISE

08:26ZSOLAR NOON

14:53ZSUNSET

15:17ZCIVIL END

CURRENT14:08Z DAYLIGHT REMAINING44m VFR NIGHT BEGINS15:17Z (1h 08m) DAY LENGTH12h 53m

Waxing Gibbous

ILLUMINATION93% MOONRISE11:57Z MOONSET00:51Z FULL MOON IN2 days

// Nearest reporting stations

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

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