// Station · 1h 2m ago · STALE

OIII

Mehrabad International Airport

CAT VFR

WIND 140° / 6 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 34°C / -2°C

ALTIM 30.00 inHg

ELEV 3,962 FT

35.6892°N / 51.3144°E

LOCATION · Tehran, IR

WIND

140°6 kt

OIII · 3,962 FT

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

METRIC

NOW · 16Z

+6H

+12H

+18H

WIND

140°/6

VIS

6+ SM

CEILING

—

LAYERS

SCT100

T / Td

34 / -2

ALTIM

30.00"

// Interpretation

VFR with light winds at 140°/6 kt. Visibility 6+ SM and scattered at 10,000 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 OIII 251600Z 14006KT 9999 SCT100 34/M02 Q1016 A3003 NOSIG

OIII · day 25 at 16:00 UTC · wind from 140° at 6 kt · visibility 6+ SM · scattered layer at 10,000 ft · temp 34°C / dewpoint -2°C · altimeter 30.00" Hg

// Runway analysis · computed from current METAR wind

Wind 140° @ 6 kt

2 USABLE · 2 AVOID

WIND

140°6 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

11L★ HDG 110° H5 kt X3 kt RIGHT PRIMARY · 13,087'

11R HDG 110° H5 kt X3 kt RIGHT 13,258'

TAILWIND ENDS · AVOID 2 ends

29R HDG 290° T5 kt X3 kt LEFT —

29L HDG 290° T5 kt X3 kt LEFT —

Pattern altitude: 4,962 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 +27°C

7,100FT

+3,138 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV3,962 FT OAT+34°C ISA DELTA+27°C PRESSURE ALT3,880 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

+71%

-50%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+50%

-32%

Light jetCJ4, Phenom 300, M2

+28%

-21%

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)

SCT100

Scattered · base 10,000 ft AGL · ~3–4 oktas

// Computed

CEILING— HIGHEST LAYER10,000 ft TOTAL COVERAGE~40% (mixed) FREEZING LEVEL21,134 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+3)

02:02ZSUNRISE

08:38ZSOLAR NOON

15:14ZSUNSET

15:40ZCIVIL END

CURRENT17:02Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS15:40Z (past) DAY LENGTH13h 11m

Waxing Gibbous

ILLUMINATION94% MOONRISE12:06Z MOONSET01:18Z FULL MOON IN2 days

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

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