Weather alerts in Colorado, 2018
3,188 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 3,188
- Warnings
- 1,242
- Watches
- 248
- Advisories
- 346
- Busiest month
- July866 alerts
- Busiest day
- June 19, 2018102 alerts
Over time
By month
The alerts
3,188 alerts are too many to list on one page. Narrow it to a product above, to a month in the chart, or to a county.
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
By county
Every county with at least one alert. A county page lists each alert that covered it.
- El Paso County390
- Kit Carson County333
- Las Animas County321
- Pueblo County302
- Yuma County294
- Weld County272
- Huerfano County265
- Cheyenne County251
- Elbert County221
- Baca County213
- Prowers County210
- Lincoln County199
- Kiowa County198
- Arapahoe County190
- Custer County182
- Fremont County181
- Bent County181
- Washington County177
- Saguache County176
- Crowley County169
- Morgan County163
- Costilla County162
- Adams County162
- Logan County160
- Teller County159
- Otero County156
- Douglas County153
- La Plata County149
- Larimer County147
- Mesa County145
- Garfield County141
- San Miguel County138
- Moffat County132
- Montezuma County129
- Jefferson County129
- Boulder County124
- Rio Blanco County122
- Phillips County121
- Denver County121
- Montrose County120
24 more counties
- Sedgwick County118
- Dolores County117
- Park County111
- Archuleta County110
- Rio Grande County110
- Conejos County106
- Hinsdale County101
- Delta County100
- Alamosa County100
- Chaffee County99
- San Juan County96
- Broomfield County96
- Routt County87
- Gunnison County86
- Eagle County83
- Gilpin County78
- Pitkin County77
- Clear Creek County74
- Ouray County72
- Lake County71
- Grand County70
- Jackson County70
- Mineral County64
- Summit County60
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.