Delaware County, OH Weather Alerts
Every National Weather Service alert issued for Delaware County, Ohio, pushed to your phone within moments — county code OHC041, forecast zone 2 zones (OHZ046, OHZ037). Free with StormCast.
Download on Google PlayHow the NWS identifies Delaware County
These are the identifiers the National Weather Service uses when it issues a warning here. StormCast watches OHC041 directly rather than matching on place names, which is why an alert arrives whether you are in Ashley or anywhere else in the county.
NWS County Code
OHC041
Forecast Zones
2 zones (OHZ046, OHZ037)
Forecast Office
Wilmington (ILN)
Radar Station
KILN
Towns covered in Delaware County
An NWS alert for Delaware County applies to all 11 of these communities. You do not need a separate alert for each one.
River gauges in and around Delaware County
StormCast tracks 10 gauges near Delaware County. Set a flood-stage alert on any of them to get notified before the water reaches you.
Current conditions
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Alert types issued for Delaware 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 →Delaware County weather alert questions
Which NWS forecast zone is Delaware County in?
Delaware County, Ohio is NWS county code OHC041 and spans 2 forecast zones (OHZ046, OHZ037). Alerts for it are issued by the Wilmington (ILN) Weather Forecast Office, and the nearest NEXRAD radar is KILN.
Which towns in Delaware County are covered?
All of them. NWS alerts are issued at the county and zone level, so a warning for Delaware County covers every community inside it, including Ashley, Columbus, Delaware, Galena, Kilbourne, Lewis Center, Ostrander, Powell, Radnor, Sunbury and Westerville.
Are there river gauges in Delaware County?
Yes — StormCast monitors 10 river gauges in and around Delaware County, including Alum Creek at Alum Creek Lake, Alum Creek at Africa, Olentangy River near Delaware. You can set a flood-stage alert on any of them and get a push notification when the water rises.
How fast are alerts for Delaware County delivered?
StormCast polls the NWS alert feed every 30 seconds. When a warning is issued for OHC041, the push notification goes out within moments — even with your screen off.