// Station · 7m ago

KMIW

Marshalltown Municipal Airport

CAT VFR

WIND 200° / 9 kt

VIS 9.0 SM

CEILING Few/scattered only

T/Td 25.6°C / 17.8°C

ALTIM 29.70 inHg

ELEV 974 FT

42.1127°N / 92.9178°W

LOCATION · Marshalltown, US

WIND

200°9 kt

KMIW · 974 FT

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

METRIC

NOW · 01Z

+6H

+12H

+18H

WIND

200°/9

VIS

9.0 SM

CEILING

—

LAYERS

SCT070

T / Td

26 / 18

ALTIM

29.70"

// Interpretation

VFR with moderate winds at 200°/9 kt. Visibility 9.0 SM and scattered at 7,000 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 KMIW 130153Z AUTO 20009KT 9SM SCT070 26/18 A2970 RMK AO2 SLP051 T02560178 $

KMIW · day 13 at 01:53 UTC · wind from 200° at 9 kt · visibility 9.0 SM · scattered layer at 7,000 ft · temp 26°C / dewpoint 18°C · altimeter 29.70" Hg · automated station w/ precipitation discriminator · sea-level pressure 1005.1 mb

// Runway analysis · computed from current METAR wind

Wind 200° @ 9 kt

2 USABLE · 2 AVOID · 1 CAUTION

WIND

200°9 kt

HEADWIND CAUTION · HIGH XW AVOID · TAILWIND

HEADWIND ENDS 2 usable

18★ HDG 180° H8 kt X3 kt RIGHT PRIMARY · 2,759'

13 HDG 130° H3 kt X8 kt RIGHT ⚠ HIGH XW · 89%

TAILWIND ENDS · AVOID 2 ends

31 HDG 310° T3 kt X8 kt LEFT —

36 HDG 360° T8 kt X3 kt LEFT —

Pattern altitude: 1,974 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

+1,726 FT ABOVE FIELD ELEV

// DA · LAST 24 HOURS loading…

FIELD ELEV974 FT OAT+26°C ISA DELTA+13°C PRESSURE ALT1,193 FT

// Performance equivalent Operating here right now feels like operating at KOIN (Oberlin Municipal Airport, Oberlin, elev 2,703 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)

SCT070

Scattered · base 7,000 ft AGL · ~3–4 oktas

// Computed

CEILING— HIGHEST LAYER7,000 ft TOTAL COVERAGE~40% (mixed) FREEZING LEVEL13,903 ft VFR MARGINunlimited

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

12:21ZSUNRISE

17:59ZSOLAR NOON

23:36ZSUNSET

00:04ZCIVIL END

CURRENT02:00Z DAYLIGHT REMAINING0m VFR NIGHT BEGINS00:04Z (past) DAY LENGTH11h 14m

Waxing Crescent

ILLUMINATION3% MOONRISE13:44Z MOONSET00:59Z FULL MOON IN13 days

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

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