// Station · 22m ago

KSTL

St. Louis Lambert International Airport

CAT VFR

WIND 120° / 10 kt

VIS 10+ SM

CEILING Few/scattered only

T/Td 29.4°C / 16.7°C

ALTIM 30.06 inHg

ELEV 618 FT

38.7487°N / 90.3700°W

LOCATION · St Louis, US

WIND

120°10 kt

KSTL · 618 FT

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

METRIC

NOW · 17Z

+6H

+12H

+18H

WIND

120°/10

VIS

10+ SM

CEILING

—

LAYERS

FEW250

T / Td

29 / 17

ALTIM

30.06"

// Interpretation

VFR with moderate winds at 120°/10 kt. Visibility better than 10 statute miles and a few at 25,000 ft. 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 KSTL 251751Z COR 12010KT 10SM FEW250 29/17 A3006 RMK AO2 SLP169 T02940167 10294 20189 58009

KSTL · day 25 at 17:51 UTC · wind from 120° at 10 kt · visibility 10+ SM · a few clouds at 25,000 ft · temp 29°C / dewpoint 17°C · altimeter 30.06" Hg · automated station w/ precipitation discriminator · sea-level pressure 1016.9 mb

// Runway analysis · computed from current METAR wind

Wind 120° @ 10 kt

4 USABLE · 4 AVOID · 1 CAUTION

WIND

120°10 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 4 usable

12L★ HDG 120° H10 kt X0 kt — PRIMARY · 9,013'

12R HDG 120° H10 kt X0 kt — 11,020'

11 HDG 110° H10 kt X2 kt RIGHT 9,000'

06 HDG 060° H5 kt X9 kt RIGHT ⚠ HIGH XW · 90%

TAILWIND ENDS · AVOID 4 ends

24 HDG 240° T5 kt X9 kt LEFT —

29 HDG 290° T10 kt X2 kt LEFT —

30R HDG 300° T10 kt X0 kt — —

30L HDG 300° T10 kt X0 kt — —

Pattern altitude: 1,618 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 +15°C

2,300FT

+1,682 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV618 FT OAT+29°C ISA DELTA+15°C PRESSURE ALT476 FT

// Performance equivalent Operating here right now feels like operating at KHDE (Brewster Field, Holdrege, elev 2,313 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+23%

-16%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+16%

-10%

Light jetCJ4, Phenom 300, M2

+9%

-7%

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 · 1 reported · highest to lowest

// Reported layers (highest → lowest)

FEW250

Few · base 25,000 ft AGL · ~1–2 oktas

// Computed

CEILING— HIGHEST LAYER25,000 ft TOTAL COVERAGE~15% (sparse) FREEZING LEVEL15,466 ft VFR MARGINunlimited

// Sun & Moon · times in Z · bar = local day (UTC-6)

11:25ZSUNRISE

18:05ZSOLAR NOON

00:44ZSUNSET

01:12ZCIVIL END

CURRENT18:13Z DAYLIGHT REMAINING6h 31m VFR NIGHT BEGINS01:12Z (6h 58m) DAY LENGTH13h 18m

Waxing Gibbous

ILLUMINATION94% MOONRISE21:32Z MOONSET10:50Z FULL MOON IN2 days

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

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