Live · updated 1 min ago
Chattanooga weather alerts
No active National Weather Service alerts for Chattanooga, Tennessee right now. The most recent was a Special Weather Statement that ended Sep 6, 6:15 PM.
8 in the last 30 days 8 in 12 months (since Aug 30) most common: Heat Advisory Get alerts on your phone →
Active alerts for Hamilton County
NWS issues alerts by county; Chattanooga is in Hamilton County. Refreshed every few minutes; times in EDT.
All clear in Hamilton County
No warnings, watches or advisories are in effect. See what is active across the country, or check a neighbouring county below.
Get Chattanooga alerts on your phone before you think to look them up
Forecast Bar watches the official alert feeds around the clock, NWS in the United States and Environment Canada in Canada, and pushes every warning, watch and advisory for your saved locations the moment it is issued. This page is the same data, a few minutes later.
- Push notifications for severe weather, with Critical Alerts that break through Focus modes
- Storm Tracker and Live Activities that follow a storm cell on your Lock Screen
- Radar with warnings drawn on the map, on iPhone, iPad, Apple Watch, Mac and Apple TV
- Rain alerts, air quality, tides, aurora and custom thresholds you set yourself
Where
Hamilton County on the map
Alert polygons are NWS's own. Forecast Bar's radar shows the same warnings over live precipitation, with future radar and lightning. See the radar.
Last 30 days
Recent alerts for Hamilton County
| Alert | Issued | Ended | Issued by |
|---|---|---|---|
| Special Weather Statement | Sep 6, 5:53 PM | Sep 6, 6:15 PM | Morristown TN |
| Child Abduction Emergency | Sep 6, 3:02 PM | Sep 6, 5:15 PM | Nashville TN |
| Heat Advisory | Sep 5, 12:49 AM | Sep 5, 8:00 PM | Morristown TN |
| Heat Advisory | Sep 4, 11:30 AM | Sep 5, 8:00 PM | Morristown TN |
| Heat Advisory | Sep 3, 11:54 PM | Cancelled Sep 4, 11:33 AM | Morristown TN |
| Heat Advisory | Sep 3, 1:04 PM | Sep 4, 8:00 PM | Morristown TN |
| Heat Advisory | Sep 2, 10:42 PM | Cancelled Sep 3, 11:55 PM | Morristown TN |
| Heat Advisory | Sep 2, 1:58 PM | Sep 4, 8:00 PM | Morristown TN |
Pattern
What Hamilton County gets alerted for
Every alert that named Hamilton County in the last 12 months, by type. Records begin August 30, 2026, so this fills in over the year.
Plain English
What these alerts mean
A warning means the hazard is happening or about to; a watch means conditions favour it; an advisory is a lesser hazard still worth planning around.
A heads-up about conditions that do not meet warning or advisory criteria but still deserve attention, such as a strong storm, patchy fog or a brief burst of snow.
An AMBER Alert issued by law enforcement about an abducted child, relayed through the weather alert system.
Heat index values high enough to cause heat illness with prolonged exposure. Drink water, stay in air conditioning and check on neighbours.
Nearby
Alerts near Chattanooga
Cities
Neighbouring counties in Tennessee
Questions
About Chattanooga alerts
How do I get Chattanooga weather alerts on my iPhone?
Install Forecast Bar, add Chattanooga as a location, and turn on severe weather alerts. Every NWS warning, watch and advisory for Hamilton County then arrives as a push notification at the moment of issue, with Critical Alerts available for the most dangerous warnings. Forecast Bar also runs on iPad, Apple Watch, Mac and Apple TV.
Where do these alerts come from?
From the National Weather Service alert feed (api.weather.gov). NWS issues alerts by county and by forecast zone; this page lists every product that names Hamilton County, the county Chattanooga sits in. Forecast Bar checks the feed continuously and this page refreshes within a few minutes of a change.
What is the difference between a watch, a warning and an advisory?
A warning means the hazard is occurring, imminent or very likely: act now. A watch means conditions are favourable for it to develop: prepare and stay informed. An advisory covers a hazard that is less serious than a warning but can still cause real inconvenience or danger if you are not ready for it.
Can I get this data as JSON?
Yes. /weather-alerts/tn/chattanooga.json returns the active alerts, the last 30 days and the 12-month counts for Chattanooga, refreshed every minute. Please cache responses and credit National Weather Service as the source.
Never find out about a Hamilton County alert from this page again
Add Chattanooga in Forecast Bar and every NWS warning, watch and advisory arrives as a push notification the moment it is issued, on iPhone, iPad, Apple Watch, Mac and Apple TV.
Free to download; live weather requires a subscription, and every subscription includes a 7-day free trial for new subscribers. Mac and iOS plans are separate; Apple TV is included with Forecast Bar Gold on iOS.