// Station · 16m ago

USNN

Nizhnevartovsk Airport

CAT VFR

WIND CALM

VIS 6+ SM

CEILING CLR

T/Td 12°C / 11°C

ALTIM 30.06 inHg

ELEV 177 FT

60.9493°N / 76.4836°E

LOCATION · Nizhnevartovsk, RU

WIND

000°0 kt

USNN · 177 FT

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

METRIC

NOW · 16Z

+6H

+12H

+18H

WIND

CALM

VIS

6+ SM

CEILING

CLR

LAYERS

—

T / Td

12 / 11

ALTIM

30.06"

// Interpretation

VFR with winds calm. 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 USNN 251600Z 00000MPS CAVOK 12/11 Q1018 R21/0///65 NOSIG RMK QFE758

USNN · day 25 at 16:00 UTC · winds calm · visibility 6+ SM · temp 12°C / dewpoint 11°C · altimeter 30.06" Hg

// Runway analysis · computed from current METAR wind

Wind CALM

ALL USABLE · WINDS CALM

WIND

000°calm

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

03 HDG 030° —CALM —— 10,499'

21 HDG 210° —CALM —— 10,499'

Pattern altitude: 1,177 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

-300FT

-477 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS ↗ +0 FT

24h AGO18h12h6hNOW

FIELD ELEV177 FT OAT+12°C ISA DELTA-3°C PRESSURE ALT35 FT

// Performance equivalent Operating here right now feels like operating at USHH (Khanty Mansiysk Airport, Khanty-Mansiysk, elev 76 ft) on a standard ISA day.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+0%

-0%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+0%

-0%

Light jetCJ4, Phenom 300, M2

+0%

-0%

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 LEVEL6,238 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC+5)

23:29ZSUNRISE

06:57ZSOLAR NOON

14:26ZSUNSET

15:15ZCIVIL END

CURRENT16:16Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS15:15Z (past) DAY LENGTH14h 57m

Waxing Gibbous

ILLUMINATION94% MOONRISE09:31Z MOONSET00:28Z FULL MOON IN2 days

// Nearest reporting stations

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

AIRSPACE

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