Weather alerts in Colorado, 2015
3,355 weather alerts in 2015, 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 2015. Tap one for its archive.
- Alerts
- 3,355
- Warnings
- 1,119
- Watches
- 190
- Advisories
- 510
- Busiest month
- June881 alerts
- Busiest day
- May 9, 2015114 alerts
Over time
By month
The alerts
3,355 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 County384
- Pueblo County310
- Kit Carson County290
- Baca County253
- Yuma County252
- Cheyenne County243
- Las Animas County235
- Elbert County213
- Prowers County208
- Weld County184
- Arapahoe County177
- Washington County177
- Teller County176
- Otero County176
- Bent County173
- Lincoln County171
- Morgan County171
- Adams County170
- Huerfano County170
- Kiowa County169
- Douglas County159
- Garfield County158
- Logan County158
- Mesa County158
- Fremont County147
- Larimer County140
- Crowley County140
- Jefferson County138
- Phillips County133
- Boulder County132
- Saguache County124
- Rio Blanco County123
- San Miguel County119
- Sedgwick County118
- Montrose County117
- Denver County115
- Moffat County115
- Montezuma County115
- Dolores County114
- La Plata County114
24 more counties
- Costilla County102
- Chaffee County101
- Custer County99
- Delta County98
- Eagle County91
- Routt County89
- Rio Grande County88
- Gunnison County86
- Alamosa County84
- Park County83
- Conejos County80
- Broomfield County77
- Archuleta County75
- Pitkin County73
- Clear Creek County70
- Gilpin County70
- Grand County61
- San Juan County58
- Ouray County58
- Mineral County57
- Lake County54
- Jackson County53
- Hinsdale County53
- Summit County51
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20142016
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.