Union County, IA Weather Alerts
Every National Weather Service alert issued for Union County, Iowa, pushed to your phone within moments — county code IAC175, forecast zone IAZ082. Free with StormCast.
Download on Google PlayHow the NWS identifies Union County
These are the identifiers the National Weather Service uses when it issues a warning here. StormCast watches IAC175 directly rather than matching on place names, which is why an alert arrives whether you are in Afton or anywhere else in the county.
NWS County Code
IAC175
Forecast Zone
IAZ082
Forecast Office
Des Moines (DMX)
Radar Station
KDMX
Towns covered in Union County
An NWS alert for Union County applies to all 7 of these communities. You do not need a separate alert for each one.
Current conditions
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Alert types issued for Union County
Tornado
Tornado Warning, Tornado Watch, Tornado Emergency and Severe Thunderstorm Warning.
How tornado alerts work →Flooding
Flash Flood Warning, Flood Watch, Flood Advisory and River Flood Warning.
How flood alerts work →Winter
Winter Storm Warning, Ice Storm Warning, Blizzard Warning and Winter Weather Advisory.
Winter warnings explained →Fire Weather
Red Flag Warning and Fire Weather Watch when conditions favor rapid fire spread.
Fire weather alerts →Heat & Cold
Excessive Heat Warning, Heat Advisory, Freeze Warning and Frost Advisory.
Frost & freeze alerts →Union County weather alert questions
Which NWS forecast zone is Union County in?
Union County, Iowa is NWS county code IAC175 and forecast zone IAZ082. Alerts for it are issued by the Des Moines (DMX) Weather Forecast Office, and the nearest NEXRAD radar is KDMX.
Which towns in Union County are covered?
All of them. NWS alerts are issued at the county and zone level, so a warning for Union County covers every community inside it, including Afton, Arispe, Creston, Cromwell, Lorimor, Shannon City and Thayer.
Does StormCast monitor flooding in Union County?
Yes. StormCast tracks NWS flood watches, flash flood warnings and river flood warnings for Union County, alongside 12,700+ USGS river gauges nationwide.
How fast are alerts for Union County delivered?
StormCast polls the NWS alert feed every 30 seconds. When a warning is issued for IAC175, the push notification goes out within moments — even with your screen off.