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// Station · 21m ago

UDYZ

Zvartnots International Airport
CAT VFR
WIND 250° / 11 kt
VIS 6+ SM
CEILING CLR
T/Td 25°C / 2°C
ALTIM 30.06 inHg
ELEV 2,838 FT
40.1489°N / 44.3979°E
LOCATION · Yerevan, AM
N
WIND
250°11 kt
UDYZ · 2,838 FT
© OSM · CartoDB

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

METRIC
NOW · 09Z
+6H
+12H
+18H
WIND
250°/11
 
 
 
VIS
6+ SM
 
 
 
CEILING
CLR
 
 
 
LAYERS
 
 
 
T / Td
25 / 2
 
 
 
ALTIM
30.06"
 
 
 

// Interpretation

VFR with moderate winds at 250°/11 kt. Visibility 6+ SM and no reported cloud layers. 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 270930Z 25011KT 230V300 9999 NSC 25/02 Q1018 NOSIG

UDYZ · day 27 at 09:30 UTC · wind from 250° at 11 kt · visibility 6+ SM · temp 25°C / dewpoint 2°C · altimeter 30.06" Hg

// Runway analysis · computed from current METAR wind

Wind 250° @ 11 kt
1 USABLE · 1 AVOID
N
WIND
250°11 kt
HEADWIND CAUTION · HIGH XW AVOID · TAILWIND
HEADWIND ENDS 1 usable
26 HDG 260° H11 kt X2 kt LEFT PRIMARY · 12,631'
TAILWIND ENDS · AVOID 1 ends
08 HDG 080° T11 kt X2 kt RIGHT
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 +15°C

4,500FT
+1,662 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS ↗ +0 FT
5,100 3,650 2,200
24h AGO18h12h6hNOW
FIELD ELEV2,838 FT OAT+25°C ISA DELTA+15°C PRESSURE ALT2,696 FT
// Performance equivalent Operating here right now feels like operating at UDSG (Shirak International Airport, Gyumri, elev 5,000 ft) on a standard ISA day.
// Aircraft performance impact SIGNIFICANT
TAKEOFF ROLL CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+45%
-32%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+32%
-20%
Light jetCJ4, Phenom 300, M2
+18%
-14%

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.

// Cloud layers · clear · no layers reported

FT 0 5k 10k 15k 20k 25k FRZ LVL · 15,464 FT UDYZ ELEV · 2,838 FT
// Reported layers (highest → lowest)
CLR
No reported cloud layers — clear sky from surface to reporting ceiling.
// Computed
CEILING HIGHEST LAYER TOTAL COVERAGEclear FREEZING LEVEL15,464 ft VFR MARGINunlimited

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

01:39ZSUNRISE
09:00ZSOLAR NOON
16:22ZSUNSET
16:54ZCIVIL END
CURRENT09:51Z DAYLIGHT REMAINING6h 31m VFR NIGHT BEGINS16:54Z (7h 03m) DAY LENGTH14h 43m
Waxing Gibbous
ILLUMINATION82% MOONRISE10:20Z MOONSET01:03Z FULL MOON IN4 days

// Nearest reporting stations · 5 shown · 100 NM (sparse area)

// Area map · 80 NM radius · CartoDB Dark Matter + aeronautical overlay

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