// Station · 29m ago

ZMCK

Ulaanbaatar Chinggis Khaan International Airport

CAT VFR

WIND VRB / 4 kt

VIS 6+ SM

CEILING CLR

T/Td 0°C / -5°C

ALTIM 30.27 inHg

ELEV 4,482 FT

47.6469°N / 106.8198°E

LOCATION · Ulaanbaatar (Sergelen), MN

WIND

VRB4 kt

ZMCK · 4,482 FT

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

METRIC

NOW · 01Z

+6H

+12H

+18H

WIND

VRB/4

VIS

6+ SM

CEILING

CLR

LAYERS

—

T / Td

0 / -5

ALTIM

30.27"

// Interpretation

VFR with light winds at variable/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 ZMCK 130130Z VRB02MPS CAVOK M00/M05 Q1025 NOSIG RMK QFE652.2 71

ZMCK · day 13 at 01:30 UTC · wind variable at 4 kt · visibility 6+ SM · temp 0°C / dewpoint -5°C · altimeter 30.27" Hg

// Runway analysis · computed from current METAR wind

Wind VRB @ 4 kt

ALL USABLE · WINDS CALM

WIND

VRB4 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

ALL RUNWAYS · CALM WINDS 2 ends

11 HDG 110° —CALM —— 11,811'

29 HDG 290° —CALM —— 11,811'

Pattern altitude: 5,482 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 -7°C

3,300FT

-1,182 FT BELOW FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV4,482 FT OAT+0°C ISA DELTA-7°C PRESSURE ALT4,134 FT

// Performance equivalent Operating here right now feels like operating at ZMBU (Baruun Urt Airport, elev 3,205 ft) on a standard ISA day.

// Aircraft performance impact ENHANCED

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+33%

-23%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+23%

-15%

Light jetCJ4, Phenom 300, M2

+13%

-10%

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 LEVEL4,482 ft VFR MARGINunlimited

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

23:08ZSUNRISE

04:40ZSOLAR NOON

10:11ZSUNSET

10:42ZCIVIL END

CURRENT01:59Z DAYLIGHT REMAINING8h 12m VFR NIGHT BEGINS10:42Z (8h 43m) DAY LENGTH11h 02m

Waxing Crescent

ILLUMINATION3% MOONRISE00:31Z MOONSET11:34Z FULL MOON IN13 days

// Nearest reporting stations

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

AIRSPACE

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