// Station · 13m ago

OIIE

Imam Khomeini International Airport

CAT VFR

WIND CALM

VIS 6+ SM

CEILING Few/scattered only

T/Td 30°C / 0°C

ALTIM 29.97 inHg

ELEV 3,305 FT

35.4161°N / 51.1522°E

LOCATION · Tehran, IR

WIND

000°0 kt

OIIE · 3,305 FT

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

METRIC

NOW · 18Z

+6H

+12H

+18H

WIND

CALM

VIS

6+ SM

CEILING

—

LAYERS

FEW100

T / Td

30 / 0

ALTIM

29.97"

// Interpretation

VFR with winds calm. Visibility 6+ SM and a few 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 OIIE 251800Z 00000KT 9999 FEW100 30/M00 Q1015 A2999

OIIE · day 25 at 18:00 UTC · winds calm · visibility 6+ SM · a few clouds at 10,000 ft · temp 30°C / dewpoint 0°C · altimeter 29.97" 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 4 ends

11L HDG 110° —CALM —— 13,772'

29R HDG 290° —CALM —— 13,772'

11R HDG 110° —CALM —— 13,425'

29L HDG 290° —CALM —— 13,425'

Pattern altitude: 4,305 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 +21°C

5,800FT

+2,495 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV3,305 FT OAT+30°C ISA DELTA+21°C PRESSURE ALT3,252 FT

// Performance equivalent Operating here right now feels like operating at OIHH (Hamadan Airport, Hamadan, elev 5,755 ft) on a standard ISA day.

// Aircraft performance impact SIGNIFICANT

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+58%

-41%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+41%

-26%

Light jetCJ4, Phenom 300, M2

+23%

-17%

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)

FEW100

Few · base 10,000 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER10,000 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL18,457 ft VFR MARGINunlimited

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

02:03ZSUNRISE

08:39ZSOLAR NOON

15:14ZSUNSET

15:41ZCIVIL END

CURRENT18:13Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS15:41Z (past) DAY LENGTH13h 11m

Waxing Gibbous

ILLUMINATION94% MOONRISE12:09Z MOONSET01:21Z FULL MOON IN2 days

// Nearest reporting stations

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

AIRSPACE

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