// Station · 6m ago

UDYZ

Zvartnots International Airport

CAT VFR

WIND 240° / 3 kt

VIS 6+ SM

CEILING Few/scattered only

T/Td 12°C / 7°C

ALTIM 30.18 inHg

ELEV 2,838 FT

40.1489°N / 44.3979°E

LOCATION · Yerevan, AM

WIND

240°3 kt

UDYZ · 2,838 FT

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

METRIC

NOW · 01Z

+6H

+12H

+18H

WIND

240°/3

VIS

6+ SM

CEILING

—

LAYERS

FEW046

T / Td

12 / 7

ALTIM

30.18"

// Interpretation

VFR with light winds at 240°/3 kt. Visibility 6+ SM and a few at 4,600 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 UDYZ 130100Z 24003KT 210V280 9999 FEW046 12/07 Q1022 NOSIG

UDYZ · day 13 at 01:00 UTC · wind from 240° at 3 kt · visibility 6+ SM · a few clouds at 4,600 ft · temp 12°C / dewpoint 7°C · altimeter 30.18" Hg

// Runway analysis · computed from current METAR wind

Wind 240° @ 3 kt

ALL USABLE · WINDS CALM

WIND

240°3 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

08 HDG 080° —CALM —— 12,631'

26 HDG 260° —CALM —— 12,631'

Pattern altitude: 3,838 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 +2°C

2,800FT

-38 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV2,838 FT OAT+12°C ISA DELTA+2°C PRESSURE ALT2,578 FT

// Performance equivalent Operating here right now feels like operating at UDYE (Erebuni Airport, Yerevan, elev 2,948 ft) on a standard ISA day.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+28%

-20%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+20%

-13%

Light jetCJ4, Phenom 300, M2

+11%

-8%

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)

FEW046

Few · base 4,600 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER4,600 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL8,899 ft VFR MARGINunlimited

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

03:11ZSUNRISE

08:49ZSOLAR NOON

14:28ZSUNSET

14:55ZCIVIL END

CURRENT01:06Z DAYLIGHT REMAINING13h 21m VFR NIGHT BEGINS14:55Z (13h 48m) DAY LENGTH11h 16m

Waxing Crescent

ILLUMINATION3% MOONRISE04:32Z MOONSET15:49Z FULL MOON IN13 days

// Nearest reporting stations

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

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