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Greeley weather alerts

No active National Weather Service alerts for Greeley, Colorado right now. The most recent was a Severe Thunderstorm Warning that ended 7:45 PM.

14 in the last 30 days 14 in 12 months (since Aug 30) most common: Severe Thunderstorm Warning Get alerts on your phone →

Active alerts for Weld County

NWS issues alerts by county; Greeley is in Weld County. Refreshed every few minutes; times in MDT.

All clear in Weld County

No warnings, watches or advisories are in effect. See what is active across the country, or check a neighbouring county below.

Get Greeley 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.

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Forecast Bar severe weather alert notifications on an iPhone Lock Screen

Where

Weld 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 Weld County

AlertIssuedEndedIssued by
Severe Thunderstorm Warning 7:41 PM 7:45 PM Denver CO
Severe Thunderstorm Warning 7:33 PM 7:45 PM Denver CO
Severe Thunderstorm Warning 7:17 PM 7:45 PM Denver CO
Severe Thunderstorm Warning 7:06 PM 7:30 PM Denver CO
Severe Thunderstorm Warning 6:54 PM 7:30 PM Denver CO
Special Weather Statement 6:26 PM 7:15 PM Denver CO
Special Weather Statement 6:21 PM 7:00 PM Denver CO
Special Weather Statement 5:42 PM 6:30 PM Denver CO
Flood Advisory Sep 5, 11:25 PM Sep 5, 11:30 PM Denver CO
Special Weather Statement Sep 5, 9:14 PM Sep 5, 10:00 PM Denver CO
Severe Thunderstorm Warning Sep 5, 8:40 PM Sep 5, 8:45 PM Denver CO
Severe Thunderstorm Warning Sep 5, 8:27 PM Sep 5, 8:45 PM Denver CO
Flood Advisory Sep 5, 8:23 PM Sep 5, 11:30 PM Denver CO
Severe Thunderstorm Warning Sep 5, 8:09 PM Sep 5, 8:45 PM Denver CO

Pattern

What Weld County gets alerted for

Every alert that named Weld County in the last 12 months, by type. Records begin August 30, 2026, so this fills in over the year.

Severe Thunderstorm Warning
8
Special Weather Statement
4
Flood Advisory
2

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.

Severe Thunderstorm Warning

A storm with hail of 1 inch or larger, winds of 58 mph or more, or both, is occurring or imminent. Move indoors and away from windows.

Special Weather Statement

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.

Flood Advisory

Minor flooding of streets, streams or low-lying areas is expected. Expect ponding on roads and use caution when driving.

Questions

About Greeley alerts

How do I get Greeley weather alerts on my iPhone?

Install Forecast Bar, add Greeley as a location, and turn on severe weather alerts. Every NWS warning, watch and advisory for Weld 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 Weld County, the county Greeley 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/co/greeley.json returns the active alerts, the last 30 days and the 12-month counts for Greeley, refreshed every minute. Please cache responses and credit National Weather Service as the source.

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Never find out about a Weld County alert from this page again

Add Greeley 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.