// Station · 4m ago

UIBB

Bratsk Airport

CAT —

WIND 280° / 4 kt

VIS 6+ SM

CEILING —

T/Td 11°C / 9°C

ALTIM 29.80 inHg

ELEV 1,610 FT

56.3696°N / 101.7018°E

LOCATION · Bratsk, RU

WIND

280°4 kt

UIBB · 1,610 FT

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

METRIC

NOW · 17Z

+6H

+12H

+18H

WIND

280°/4

VIS

6+ SM

CEILING

CLR

LAYERS

—

T / Td

11 / 9

ALTIM

29.80"

// Interpretation

VFR with light winds at 280°/4 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 UIBB 111700Z AUTO 28002MPS 9999 // ///047/// 11/09 Q1009 RMK QFE714/0952

UIBB · day 11 at 17:00 UTC · wind from 280° at 4 kt · visibility 6+ SM · temp 11°C / dewpoint 9°C · altimeter 29.80" Hg

// Runway analysis · computed from current METAR wind

Wind 280° @ 4 kt

ALL USABLE · WINDS CALM

WIND

280°4 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

12 HDG 120° —CALM —— 10,368'

30 HDG 300° —CALM —— 10,368'

Pattern altitude: 2,610 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 -1°C

1,700FT

+90 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↗ +400 FT

24h AGO18h12h6hNOW

FIELD ELEV1,610 FT OAT+11°C ISA DELTA-1°C PRESSURE ALT1,734 FT

// Performance equivalent Operating here right now feels like operating at UIII (Irkutsk International Airport, Irkutsk, elev 1,675 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+17%

-12%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+12%

-8%

Light jetCJ4, Phenom 300, M2

+7%

-5%

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

// Reported layers (highest → lowest)

CLR

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

// Computed

CEILING— HIGHEST LAYER— TOTAL COVERAGEclear FREEZING LEVEL7,166 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+7)

20:41ZSUNRISE

05:19ZSOLAR NOON

13:57ZSUNSET

14:56ZCIVIL END

CURRENT17:04Z DAYLIGHT REMAINING20h 53m VFR NIGHT BEGINS14:56Z (21h 52m) DAY LENGTH17h 16m

Waning Crescent

ILLUMINATION10% MOONRISE18:11Z MOONSET11:27Z FULL MOON IN18 days

// Nearest reporting stations

No nearby reporting stations found within 200 NM of UIBB.

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

AIRSPACE

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