// Station · 15m ago

UUBC

Grabtsevo Airport

CAT VFR

WIND 290° / 10 kt

VIS 6+ SM

CEILING CLR

T/Td 17°C / 11°C

ALTIM 30.00 inHg

ELEV 656 FT

54.5500°N / 36.3667°E

LOCATION · Kaluga, RU

WIND

290°10 kt

UUBC · 656 FT

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

METRIC

NOW · 16Z

+6H

+12H

+18H

WIND

290°/10

VIS

6+ SM

CEILING

CLR

LAYERS

—

T / Td

17 / 11

ALTIM

30.00"

// Interpretation

VFR with moderate winds at 290°/10 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 UUBC 251600Z 29005MPS CAVOK 17/11 Q1016 R31/190057 NOSIG RMK QFE745/0993

UUBC · day 25 at 16:00 UTC · wind from 290° at 10 kt · visibility 6+ SM · temp 17°C / dewpoint 11°C · altimeter 30.00" Hg

// Runway analysis · computed from current METAR wind

Wind 290° @ 10 kt

1 USABLE · 1 AVOID

WIND

290°10 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 1 usable

31★ HDG 310° H9 kt X3 kt LEFT PRIMARY · 6,885'

TAILWIND ENDS · AVOID 1 ends

13 HDG 130° T9 kt X3 kt RIGHT —

Pattern altitude: 1,656 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 +3°C

900FT

+244 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV656 FT OAT+17°C ISA DELTA+3°C PRESSURE ALT574 FT

// Performance equivalent Operating here right now feels like operating at UUWW (Vnukovo International Airport, Moscow, elev 685 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+9%

-6%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+6%

-4%

Light jetCJ4, Phenom 300, M2

+4%

-3%

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 · clear · no layers reported

// Reported layers (highest → lowest)

CLR

No reported cloud layers — clear sky from surface to reporting ceiling.

// Computed

CEILING— HIGHEST LAYER— TOTAL COVERAGEclear FREEZING LEVEL9,242 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+2)

02:29ZSUNRISE

09:38ZSOLAR NOON

16:46ZSUNSET

17:25ZCIVIL END

CURRENT16:15Z DAYLIGHT REMAINING30m VFR NIGHT BEGINS17:25Z (1h 10m) DAY LENGTH14h 17m

Waxing Gibbous

ILLUMINATION94% MOONRISE12:32Z MOONSET02:49Z 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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