Mason City Municipal Airport (KMCW) Aviation Weather, METAR, TAF & ATIS Alerts
Live aviation weather for Mason City Municipal Airport in Mason City, IA, including METAR, TAF, flight category, wind, visibility, ceiling, altimeter, runway crosswinds, and Telegram airport alerts.
Mason City Municipal Airport (KMCW) is a regional airport serving Mason City, IA at 1,213 ft. KMCW reports its own METAR and publishes a TAF — decoded live on this page as flight category, wind, visibility, ceiling and altimeter. Its 4 runways (12, 18, 30, 36) — longest 6,501 ft — are checked against the current wind in the crosswind table below. The official FAA airport diagram is at the bottom of the page. Track KMCW in the ATIS Alerts Telegram bot to get a message when a new METAR changes the picture — flight category, wind, or ceiling past your selected minimums.
Wind calm, visibility 5 statute miles, no cloud data, temperature 21°C (70°F), altimeter 29.96 inHg. Conditions are Marginal VFR (MVFR).
METAR KMCW 290553Z AUTO 00000KT 5SM BR CLR 21/21 A2996 RMK AO2 SLP130 T02110211 10283 20206 402940200 53005
What changed at KMCW?
Since the 0453Z (11:53 PM CDT) report — compared automatically against the latest METAR.
- Flight category dropped from VFR to MVFR.
- Visibility dropped from 7 SM to 5 SM.
- Mist began (BR).
This is exactly what ATIS Alerts watches for you — get a Telegram message when KMCW's weather changes, free →
Current pilot readout for KMCW
KMCW is currently MVFR with calm winds, visibility 5 statute miles, and no ceiling reported. Density altitude is approximately 2,200 ft (field elevation 1,213 ft). Review the latest TAF below for forecast changes before departure.
⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →
Get KMCW weather alerts in Telegram
Stop refreshing aviation weather manually. Track KMCW in ATIS Alerts and get notified when a new METAR changes the picture — a category drop, or wind and ceiling moving toward your minimums.
Track KMCW free on TelegramRunway wind check
Estimated head/tailwind and crosswind for each runway end from the current reported wind.
Use this section to quickly compare current wind alignment across available runways at KMCW. This is intended as a planning aid only and should not replace official performance calculations or pilot judgment.
Current wind is calm — calm wind is not a factor for runway selection, and with no wind there is no head/tail or crosswind component to compute. Live numbers return automatically once a report includes a wind direction.
| Runway | Length | Surface | Head / Tail | Crosswind |
|---|---|---|---|---|
| 12 | 5,502 ft | ASP | — | — |
| 18 | 6,501 ft | ASP | — | — |
| 30 | 5,502 ft | ASP | — | — |
| 36 | 6,501 ft | ASP | — | — |
Open the crosswind calculator — try your own wind and runway numbers →
24-hour trend
Wind, ceiling and flight category over the last 24 hours.
Over the last 23 h: wind 7→0 kt, ceiling unlimited → unlimited.
KMCW weather radar
Live NEXRAD + lightning, with a 4-hour future-radar forecast — drag to pan, tap ⚡ to toggle lightning.
Live weather radar around Mason City Municipal Airport in Mason City, IA: the NOAA/NWS NEXRAD composite updates about every five minutes, with NOAA lightning strike density overlaid. The loop plays the past 50 minutes, then continues into a future-radar forecast (+1 to +4 hours, NOAA HRRR model) so you can see where precipitation around KMCW is headed.
Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © OpenStreetMap © CARTO
Forecast frames (amber label) are HRRR model guidance, not observed radar. Lightning strike density appears as a blue-white glow when strikes are detected in view. Radar and lightning coverage are limited in parts of Alaska, Hawaii, and offshore areas. Not for navigation.
Recent aviation weather trends at KMCW
From ATIS Alerts' hourly weather history.
Over the past 24 hours, KMCW reported mostly VFR across 26 observations, with 5 flight-category changes. The lowest ceiling was 3,600 ft. Wind most often came from the N.
Most recent change: VFR → MVFR
Most recent change: IFR → VFR
- 18
- 53%
- 30
- 20%
- 36
- 14%
- 12
- 13%
TAF — Terminal Aerodrome Forecast
Issued 0537Z (12:37 AM CDT)
TAF KMCW 290537Z 2906/3006 00000KT P6SM SKC FM291100 14002KT 6SM BR SCT200 FM291500 18007KT P6SM SCT035
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Airport facts
Reference data from the OurAirports dataset.
- Type
- Regional airport
- ICAO
- KMCW
- IATA
- MCW
- FAA LID
- MCW
- City
- Mason City
- State
- Iowa
- Country
- United States
- Elevation
- 1,213 ft
- Coordinates
- 43.1598, -93.3297
- Runways
- 4
- Longest runway
- 6,501 ft
- Weather reporting
- Reports METAR
- TAF
- Published
- AWOS/ASOS
- 120.3 MHz
- Time zone
- America/Chicago
- Next sunset
- 19h 32m
Run a flight school, FBO, or club here? Embed KMCW's live status on your website — free →
Nearby airports
Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.
Within 25 NM
8 airports+2 more within 25 NM
25–50 NM
8 airports+2 more within 50 NM
50–100 NM
8 airports+2 more within 100 NM
RC flying fields nearby
AMA model-aircraft club fields around this airport — live wind, crosswind & flyability on each page.
- River City RC 1 — Mason City, IA · 4 mi
Historical Flying Weather
2006–2025 · ATIS Alerts Flying Weather Index
Based on historical observations from 2006–2025, KMCW reported VFR conditions during about 75.4% of valid daylight observations, with an estimated 244 VFR flying days a year. July had the most VFR weather; December had the most instrument conditions. Surface winds averaged 9.5 kt, calm 6.4% of the time.
Full historical breakdown
Flight category by month
| Month | VFR % | MVFR % | IFR % | LIFR % |
|---|---|---|---|---|
| Jan | 59.0 | 18.3 | 12.5 | 10.3 |
| Feb | 66.9 | 16.8 | 9.8 | 6.5 |
| Mar | 69.1 | 16.4 | 7.8 | 6.6 |
| Apr | 74.2 | 15.3 | 7.7 | 2.8 |
| May | 79.9 | 12.5 | 5.6 | 2.0 |
| Jun | 86.4 | 8.3 | 3.5 | 1.8 |
| Jul | 86.9 | 8.5 | 2.6 | 2.0 |
| Aug | 83.9 | 9.0 | 3.6 | 3.6 |
| Sep | 84.0 | 8.9 | 4.0 | 3.1 |
| Oct | 79.4 | 11.8 | 5.2 | 3.7 |
| Nov | 69.8 | 17.6 | 7.2 | 5.4 |
| Dec | 56.4 | 19.4 | 12.6 | 11.6 |
Average wind by month
| Month | Mean wind (kt) |
|---|---|
| Jan | 10.9 kt |
| Feb | 10.8 kt |
| Mar | 10.8 kt |
| Apr | 11.7 kt |
| May | 10.1 kt |
| Jun | 8.6 kt |
| Jul | 6.8 kt |
| Aug | 6.5 kt |
| Sep | 7.6 kt |
| Oct | 9.4 kt |
| Nov | 10.5 kt |
| Dec | 10.4 kt |
Historical summary of past observations — not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.
KMCW airport diagram
Official FAA taxiway and runway layout. Tap to zoom.
The FAA airport diagram for Mason City Municipal Airport in Mason City, IA shows the runway and taxiway layout across 4 runways, ramp areas, and hold-short positions — review it before taxiing at an unfamiliar field.
Official FAA airport diagram · d-TPP cycle 2608 · Not for navigation. Download the official FAA PDF ↗
KMCW weather — frequently asked
What runways are available at KMCW?+
KMCW has 4 runways — 12, 18, 30, 36; the longest is 6,501 ft. This page computes the live crosswind for each runway end from the current wind.
Does KMCW report its own weather?+
Yes — Mason City Municipal Airport has its own weather station and publishes METAR observations, which this page decodes live.
Does KMCW have a TAF?+
Yes — the TAF is shown on this page below the current conditions.
Does KMCW broadcast D-ATIS?+
No — KMCW does not broadcast D-ATIS. Alerts for KMCW from the ATIS Alerts bot (@atisalerts_bot) are based on its METAR instead.
Where can I find the KMCW airport diagram?+
The official FAA airport diagram for Mason City Municipal Airport (KMCW) is shown on this page — it maps the runway and taxiway layout, ramps, and hold-short lines. Tap it to zoom, or download the official FAA PDF free from the link under the diagram (updated every 28-day FAA charting cycle).
Pilot PIREPs for Mason City Municipal Airport (KMCW)
Community-submittedCommunity-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.
Read recent community-submitted pilot notes for Mason City Municipal Airport, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.
⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.
No Pilot PIREPs have been submitted for KMCW yet. Recently flew here? Help the next pilot by leaving a quick airport note.
Pilot PIREPs are community pilot notes for situational awareness only — not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.
Why pilots use ATIS Alerts
Free aviation weather and ATIS change alerts for GA pilots, delivered on Telegram — so a change catches your eye before it catches you off guard.
- Get pinged the moment KMCW drops below VFR or a new report moves your numbers.
- Live METAR, TAF, crosswinds, and FAA delays — one link, always current.
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⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.
No D-ATIS at this airport — showing METAR.
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