// Station · 1h 1m ago · STALE

KMSN

Dane County Regional Truax Field

CAT VFR

WIND 200° / 8 kt

VIS 10+ SM

CEILING BKN at 20,000 ft

T/Td 26.1°C / 16.7°C

ALTIM 29.67 inHg

ELEV 887 FT

43.1399°N / 89.3375°W

LOCATION · Madison, US

WIND

200°8 kt

KMSN · 887 FT

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

METRIC

NOW · 00Z

+6H

+12H

+18H

WIND

200°/8

VIS

10+ SM

CEILING

BKN200

LAYERS

BKN200

T / Td

26 / 17

ALTIM

29.67"

// Interpretation

VFR — ceiling 20,000 ft. Moderate winds at 200°/8 kt, visibility better than 10 statute miles, broken at 20,000 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 130053Z 20008KT 10SM BKN200 26/17 A2967 RMK AO2 SLP040 T02610167 $

KMSN · day 13 at 00:53 UTC · wind from 200° at 8 kt · visibility 10+ SM · broken layer at 20,000 ft · temp 26°C / dewpoint 17°C · altimeter 29.67" Hg · automated station w/ precipitation discriminator · sea-level pressure 1004.0 mb

// Runway analysis · computed from current METAR wind

Wind 200° @ 8 kt

3 USABLE · 3 AVOID · 1 CAUTION

WIND

200°8 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 3 usable

21★ HDG 210° H8 kt X1 kt LEFT PRIMARY · 7,200'

18 HDG 180° H8 kt X3 kt RIGHT 9,006'

14 HDG 140° H4 kt X7 kt RIGHT ⚠ HIGH XW · 88%

TAILWIND ENDS · AVOID 3 ends

32 HDG 320° T4 kt X7 kt LEFT —

03 HDG 030° T8 kt X1 kt RIGHT —

36 HDG 360° T8 kt X3 kt LEFT —

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 +13°C

2,700FT

+1,813 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV887 FT OAT+26°C ISA DELTA+13°C PRESSURE ALT1,135 FT

// Performance equivalent Operating here right now feels like operating at KLNP (Lonesome Pine Airport, Wise, elev 2,684 ft) on a standard ISA day.

// Aircraft performance impact MODERATE

TAKEOFF ROLL CLIMB RATE

Single-engine propC172, PA-28, Cherokee

+27%

-19%

Turbo / high-perf pistonSR22T, Bonanza, Mooney

+19%

-12%

Light jetCJ4, Phenom 300, M2

+11%

-8%

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)

BKN200

Broken · base 20,000 ft AGL · ~5–7 oktas

// Computed

CEILING20,000 ft AGL HIGHEST LAYER20,000 ft TOTAL COVERAGE~75% (mostly covered) FREEZING LEVEL14,069 ft VFR MARGIN+17,000 ft

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

12:08ZSUNRISE

17:44ZSOLAR NOON

23:21ZSUNSET

23:50ZCIVIL END

CURRENT01:54Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS23:50Z (past) DAY LENGTH11h 13m

Waxing Crescent

ILLUMINATION3% MOONRISE13:31Z MOONSET00:44Z FULL MOON IN13 days

// Nearest reporting stations

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

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