// Station · 13m ago

UIBB

Bratsk Airport

CAT —

WIND VRB / 2 kt

VIS 6+ SM

CEILING —

T/Td 12°C / 9°C

ALTIM 29.77 inHg

ELEV 1,610 FT

56.3696°N / 101.7018°E

LOCATION · Bratsk, RU

WIND

VRB2 kt

UIBB · 1,610 FT

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

METRIC

NOW · 18Z

+6H

+12H

+18H

WIND

VRB/2

VIS

6+ SM

CEILING

CLR

LAYERS

—

T / Td

12 / 9

ALTIM

29.77"

// Interpretation

VFR with light winds at variable/2 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 111800Z AUTO VRB01MPS 9999 // ///069/// 12/09 Q1008 RMK QFE714/0952

UIBB · day 11 at 18:00 UTC · wind variable at 2 kt · visibility 6+ SM · temp 12°C / dewpoint 9°C · altimeter 29.77" Hg

// Runway analysis · computed from current METAR wind

Wind VRB @ 2 kt

ALL USABLE · WINDS CALM

WIND

VRB2 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 +0°C

1,800FT

+190 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS ↗ +500 FT

24h AGO18h12h6hNOW

FIELD ELEV1,610 FT OAT+12°C ISA DELTA+0°C PRESSURE ALT1,764 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

+18%

-13%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+13%

-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 LEVEL7,671 ft VFR MARGINunlimited

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

20:41ZSUNRISE

05:19ZSOLAR NOON

13:57ZSUNSET

14:56ZCIVIL END

CURRENT18:13Z DAYLIGHT REMAINING19h 44m VFR NIGHT BEGINS14:56Z (20h 43m) DAY LENGTH17h 16m

Waning Crescent

ILLUMINATION10% MOONRISE18:13Z MOONSET11:30Z 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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