// Station · 12m ago

KMSN

Dane County Regional Truax Field

CAT VFR

WIND 170° / 5 kt

VIS 10+ SM

CEILING BKN at 25,000 ft

T/Td 19.4°C / 15.6°C

ALTIM 30.12 inHg

ELEV 887 FT

43.1399°N / 89.3375°W

LOCATION · Madison, US

WIND

170°5 kt

KMSN · 887 FT

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

METRIC

NOW · 13Z

+6H

+12H

+18H

WIND

170°/5

VIS

10+ SM

CEILING

BKN250

LAYERS

BKN250

T / Td

19 / 16

ALTIM

30.12"

// Interpretation

VFR — ceiling 25,000 ft. Light winds at 170°/5 kt, visibility better than 10 statute miles, broken 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 KMSN 251353Z 17005KT 10SM BKN250 19/16 A3012 RMK AO2 SLP196 T01940156

KMSN · day 25 at 13:53 UTC · wind from 170° at 5 kt · visibility 10+ SM · broken layer at 25,000 ft · temp 19°C / dewpoint 16°C · altimeter 30.12" Hg · automated station w/ precipitation discriminator · sea-level pressure 1019.6 mb

// Runway analysis · computed from current METAR wind

Wind 170° @ 5 kt

3 USABLE · 3 AVOID

WIND

170°5 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 3 usable

18★ HDG 180° H5 kt X1 kt LEFT PRIMARY · 9,006'

14 HDG 140° H4 kt X2 kt RIGHT 5,846'

21 HDG 210° H4 kt X3 kt LEFT 7,200'

TAILWIND ENDS · AVOID 3 ends

03 HDG 030° T4 kt X3 kt RIGHT —

32 HDG 320° T4 kt X2 kt LEFT —

36 HDG 360° T5 kt X1 kt RIGHT —

Pattern altitude: 1,887 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 +6°C

1,400FT

+513 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV887 FT OAT+19°C ISA DELTA+6°C PRESSURE ALT683 FT

// Performance equivalent Operating here right now feels like operating at KMDZ (Taylor County Airport, Medford, elev 1,478 ft) on a standard ISA day.

// Aircraft performance impact MINOR

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+14%

-10%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+10%

-6%

Light jetCJ4, Phenom 300, M2

+6%

-4%

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)

BKN250

Broken · base 25,000 ft AGL · ~5–7 oktas

// Computed

CEILING25,000 ft AGL HIGHEST LAYER25,000 ft TOTAL COVERAGE~75% (mostly covered) FREEZING LEVEL10,685 ft VFR MARGIN+22,000 ft

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

11:15ZSUNRISE

18:00ZSOLAR NOON

00:46ZSUNSET

01:16ZCIVIL END

CURRENT14:05Z DAYLIGHT REMAINING10h 41m VFR NIGHT BEGINS01:16Z (11h 10m) DAY LENGTH13h 31m

Waxing Gibbous

ILLUMINATION93% MOONRISE21:13Z MOONSET10:44Z FULL MOON IN3 days

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

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