Flood Warning Issued for Forsyth and Fulton Counties, GA

Source: NOAA · Northern Georgia

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NWS Peachtree City has issued a Flood Warning for Big Creek near Alpharetta affecting Fulton and Forsyth Counties until further notice.

What this NWS weather alert tells you, and what most readers miss

This notice was issued by NOAA on June 8, 2026 and geographically references Northern Georgia. Its severity classification of "high" signals how the issuing agency weighs the risk of harm if no action is taken - "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to - Weather Alerts - determines the warning protocol behind it, which shapes what protective action (seeking shelter, following evacuation orders if issued, monitoring official updates) is recommended and which agency holds authority to issue or cancel it.

Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to read it as a data point about the issuing system: how quickly NOAA detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action, a single localized NWS weather alert is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.

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Alert Details

A Flood Warning has been issued by the National Weather Service Peachtree City GA. The alert was sent, effective, and onset at 2026-05-24T22:08:00-04:00 with an expiration of 2026-05-25T22:15:00-04:00. The event type is Flood Warning (FLW).

Affected Areas

The warning covers Forsyth County, GA and Fulton County, GA, specifically for Big Creek near Alpharetta.

What You Should Do

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas.

Expected Conditions

Minor flooding is forecast. At 9.0 feet, minor flooding expands along the creek from near Cumming to Alpharetta and Roswell. Backyards of homes off Seale Drive and Gunter Court and portions of the Golf of Georgia begin to flood. The Big Creek Greenway experiences significant flooding up to 3 feet deep, resulting in closure of most paths upstream and downstream from the gage on Kimball Bridge Road and Rock Mill Park. A large portion of the YMCA Campground off Preston Ridge Road will be under a foot of water. At 9:45 PM EDT the stage was 6.5 feet. The river is expected to rise above flood stage just after midnight to a crest of around 9.5 feet. Flood stage is 7.0 feet.

Timeline

The Flood Warning is in effect from this evening (2026-05-24 at 10:08 PM EDT) until further notice.

Original source: NOAA Official Notice ↗

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Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
NWS Peachtree City has issued a Flood Warning for Big Creek near Alpharetta affecting Fulton and Forsyth Counties until further notice.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects Northern Georgia. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.