Gwinnett County, GA Weather Alerts
Every National Weather Service alert issued for Gwinnett County, Georgia, pushed to your phone within moments — county code GAC135, forecast zone GAZ034. Free with StormCast.
Download on Google PlayHow the NWS identifies Gwinnett County
These are the identifiers the National Weather Service uses when it issues a warning here. StormCast watches GAC135 directly rather than matching on place names, which is why an alert arrives whether you are in Buford or anywhere else in the county.
NWS County Code
GAC135
Forecast Zone
GAZ034
Forecast Office
Peachtree City (FFC)
Radar Station
KFFC
Towns covered in Gwinnett County
An NWS alert for Gwinnett County applies to all 10 of these communities. You do not need a separate alert for each one.
River gauges in and around Gwinnett County
StormCast tracks 12 gauges near Gwinnett County. Set a flood-stage alert on any of them to get notified before the water reaches you.
- Pew Creek at Patterson Road near Lawrenceville
- Sweetwater Creek (E ATL) at Club Drive near Lilburn
- Wolf Creek Tributary at Dean Road near Suwanee
- Yellow River Tributary at Plantation Road near Lawrenceville
- Wildcat Creek (GA) near Lawrenceville
- Suwanee Creek at Suwanee
- Bromolow Creek Tributary at Pond Road near Norcross
- Shoal Creek at Paper Mill Rd near Lawrenceville
- Garner Creek near Snellville
- Alcovy River near Lawrenceville
- Watson Creek Tributary at Tanglewood Drive near Snellville
- Chattahoochee River at 0.76 mile upstream McGinnis Ferry near Suwanee
Current conditions
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Alert types issued for Gwinnett 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 →Gwinnett County weather alert questions
Which NWS forecast zone is Gwinnett County in?
Gwinnett County, Georgia is NWS county code GAC135 and forecast zone GAZ034. Alerts for it are issued by the Peachtree City (FFC) Weather Forecast Office, and the nearest NEXRAD radar is KFFC.
Which towns in Gwinnett County are covered?
All of them. NWS alerts are issued at the county and zone level, so a warning for Gwinnett County covers every community inside it, including Buford, Dacula, Duluth, Grayson, Lawrenceville, Lilburn, Norcross, North Metro, Snellville and Suwanee.
Are there river gauges in Gwinnett County?
Yes — StormCast monitors 12 river gauges in and around Gwinnett County, including Pew Creek at Patterson Road near Lawrenceville, Sweetwater Creek (E ATL) at Club Drive near Lilburn, Wolf Creek Tributary at Dean Road near Suwanee. 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 Gwinnett County delivered?
StormCast polls the NWS alert feed every 30 seconds. When a warning is issued for GAC135, the push notification goes out within moments — even with your screen off.