// Station · 19m ago
KMIW
Marshalltown Municipal Airport
CAT VFR
WIND CALM
VIS 10+ SM
CEILING CLR
T/Td 31.7°C / 21.7°C
ALTIM 30.17 inHg
ELEV 974 FT
42.1127°N / 92.9178°W
LOCATION · Marshalltown, US
WIND
000°0 kt
KMIW · 974 FT
© OSM · CartoDB
// Current + 24h forecast · METAR loaded · TAF loading…
METRIC
NOW · 21Z
+6H
+12H
+18H
WIND
CALM
VIS
10+ SM
CEILING
CLR
LAYERS
—
T / Td
32 / 22
ALTIM
30.17"
// Interpretation
VFR with winds calm. Visibility better than 10 statute miles 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…
// Want this glance-able on 10 airports? METAR Deck →// Raw observation METAR string + decoded
METAR KMIW 142153Z AUTO 00000KT 10SM CLR 32/22 A3017 RMK AO2 SLP209 T03170217
KMIW · day 14 at 21:53 UTC · winds calm · visibility 10+ SM · temp 32°C / dewpoint 22°C · altimeter 30.17" Hg · automated station w/ precipitation discriminator · sea-level pressure 1020.9 mb
// Runway analysis · computed from current METAR wind
Wind CALM
ALL USABLE · WINDS CALM
WIND
000°calm
HEADWIND
CAUTION · HIGH XW
AVOID · TAILWIND
ALL RUNWAYS · CALM WINDS
4 ends
13
HDG 130°
—CALM
——
5,007'
31
HDG 310°
—CALM
——
5,007'
18
HDG 180°
—CALM
——
2,759'
36
HDG 360°
—CALM
——
2,759'
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 +18°C
2,900FT
+1,926 FT ABOVE FIELD ELEV
// DA · LAST 24 HOURS
↗ +200 FT
24h AGO18h12h6hNOW
FIELD ELEV974 FT
OAT+32°C
ISA DELTA+18°C
PRESSURE ALT720 FT
// Performance equivalent
Operating here right now feels like operating at KTIF
(Thomas County Airport, Thedford, elev 2,925 ft)
on a standard ISA day.
// Aircraft performance impact
MINOR
TAKEOFF ROLL
CLIMB RATE
Single-engine propC172, PA-28, Cherokee
+29%
-20%
Turbo / high-perf pistonSR22T, Bonanza, Mooney
+20%
-13%
Light jetCJ4, Phenom 300, M2
+12%
-9%
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.
// Cloud layers · clear · no layers reported
// Sun & Moon · times in Z · bar = local day (UTC-6)
10:49ZSUNRISE
18:18ZSOLAR NOON
01:47ZSUNSET
02:21ZCIVIL END
CURRENT22:12Z
DAYLIGHT REMAINING3h 35m
VFR NIGHT BEGINS02:21Z (4h 09m)
DAY LENGTH14h 58m
New Moon
ILLUMINATION0%
MOONRISE10:55Z
MOONSET01:54Z
FULL MOON IN15 days
// Nearest reporting stations · 5 shown · 60 NM radius
KGGI
VFR
Grinnell Regional Airport · Grinnell
- WIND
- CALM
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 26 NM S
- AGE
- 17m ago
KIFA
VFR
Iowa Falls Municipal Airport · Iowa Falls
- WIND
- CALM
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 27 NM NW
- AGE
- 17m ago
KTNU
VFR
Newton Municipal Airport · Newton
- WIND
- 160° / 4 kt
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 27 NM S
- AGE
- 17m ago
KAMW
VFR
Ames Municipal Airport · Ames
- WIND
- 110° / 4 kt
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 32 NM W
- AGE
- 19m ago
KALO
VFR
Waterloo Regional Airport · Waterloo
- WIND
- 270° / 6 kt
- VIS
- 10+ SM
- CEILING
- CLR
- DIST
- 35 NM NE
- AGE
- 18m ago
// Area map · 60 NM radius · CartoDB Dark Matter + aeronautical overlay
© OpenStreetMap · CartoDB · OpenAIP
//
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