Seminole County, FL Weather Alerts
Every National Weather Service alert issued for Seminole County, Florida, pushed to your phone within moments — county code FLC117, forecast zone 2 zones (FLZ046, FLZ144). Free with StormCast.
Download on Google PlayHow the NWS identifies Seminole County
These are the identifiers the National Weather Service uses when it issues a warning here. StormCast watches FLC117 directly rather than matching on place names, which is why an alert arrives whether you are in Altamonte Springs or anywhere else in the county.
NWS County Code
FLC117
Forecast Zones
2 zones (FLZ046, FLZ144)
Forecast Office
Melbourne (MLB)
Radar Station
KMLB
Towns covered in Seminole County
An NWS alert for Seminole County applies to all 11 of these communities. You do not need a separate alert for each one.
River gauges in and around Seminole County
StormCast tracks 12 gauges near Seminole County. Set a flood-stage alert on any of them to get notified before the water reaches you.
- Soldier Creek near Longwood
- Gee Creek near Longwood
- Howell Creek at 434 near Oviedo
- Little Wekiva River near ALTAMONTE SPRINGS 2N
- Howell Creek near Slavia
- Howell Creek near Altamonte Springs
- St. Johns River near Sanford
- Wekiva River near Sanford
- Econlockhatchee River near Oviedo
- Little Econlockhatchee near Oviedo
- St. Johns River at Lake Jesup Outlet near Sanford
- Econlockhatchee River near Chuluota
Current conditions
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Alert types issued for Seminole 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 →Seminole County weather alert questions
Which NWS forecast zone is Seminole County in?
Seminole County, Florida is NWS county code FLC117 and spans 2 forecast zones (FLZ046, FLZ144). Alerts for it are issued by the Melbourne (MLB) Weather Forecast Office, and the nearest NEXRAD radar is KMLB.
Which towns in Seminole County are covered?
All of them. NWS alerts are issued at the county and zone level, so a warning for Seminole County covers every community inside it, including Altamonte Springs, Casselberry, Geneva, Goldenrod, Lake Mary, Lake Monroe, Longwood, Mid Florida, Oviedo, Sanford and Winter Springs.
Are there river gauges in Seminole County?
Yes — StormCast monitors 12 river gauges in and around Seminole County, including Soldier Creek near Longwood, Gee Creek near Longwood, Howell Creek at 434 near Oviedo. 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 Seminole County delivered?
StormCast polls the NWS alert feed every 30 seconds. When a warning is issued for FLC117, the push notification goes out within moments — even with your screen off.