Areal Flood Advisories in Colorado
4,265 areal flood advisories since 1986. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of areal flood advisories reaches back to 2005.
Areal Flood Advisories by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Areal Flood Advisories
- 4,265
- Busiest year
- 2014410 areal flood advisories
- Average year
- 224over 19 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- El Paso County362
- Larimer County345
- Mesa County301
- Weld County258
- Arapahoe County237
- Adams County223
- Douglas County217
- Garfield County200
- Pueblo County199
- Elbert County196
- Washington County196
- Jefferson County186
- Las Animas County184
- Denver County164
- Huerfano County163
- Morgan County163
- Montrose County160
- Boulder County156
- Fremont County145
- Lincoln County139
- San Miguel County136
- Logan County128
- Rio Blanco County116
- Grand County109
- Montezuma County106
- Custer County87
- Ouray County86
- Park County85
- Bent County80
- Teller County78
- Delta County77
- La Plata County75
- Eagle County74
- Dolores County72
- Baca County71
- Otero County70
- Prowers County65
- Kiowa County62
- Pitkin County61
- Moffat County59
24 more counties
- Chaffee County55
- Costilla County52
- Crowley County43
- Phillips County42
- Archuleta County40
- Clear Creek County39
- Hinsdale County39
- Mineral County37
- Sedgwick County37
- Saguache County36
- Gunnison County36
- Broomfield County35
- Routt County34
- Gilpin County32
- Kit Carson County29
- Yuma County23
- San Juan County22
- Jackson County21
- Rio Grande County15
- Summit County14
- Cheyenne County13
- Conejos County6
- Lake County5
- Alamosa County4
The latest areal flood advisories
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 25, 5:07 PM MDT | Areal Flood Advisory | BOU | Adams, Arapahoe, Denver | 113 min |
| Sep 25, 4:29 PM MDT | Areal Flood Advisory | BOU | Adams, Arapahoe, Denver, Jefferson | 2 hr |
| Sep 25, 4:18 PM MDT | Areal Flood Advisory | BOU | Arapahoe, Douglas, Jefferson | 117 min |
| Sep 25, 3:54 PM MDT | Areal Flood Advisory | BOU | Jefferson | 2 hr |
| Sep 25, 3:41 PM MDT | Areal Flood Advisory | BOU | Jefferson | 2 hr |
| Sep 25, 3:28 PM MDT | Areal Flood Advisory | GJT | Montrose | 2 hr |
| Sep 23, 5:08 PM MDT | Areal Flood Advisory | BOU | Arapahoe, Douglas | 2 hr |
| Sep 22, 6:40 PM MDT | Areal Flood Advisory | BOU | Arapahoe, Douglas, Jefferson | 2 hr |
| Sep 20, 9:40 PM MDT | Areal Flood Advisory | BOU | Douglas, Elbert | 3 hr |
| Sep 20, 8:24 PM MDT | Areal Flood Advisory | GLD | Cheyenne, Kit Carson | 6 hr |
| Sep 19, 9:07 PM MDT | Areal Flood Advisory | GLD | Kit Carson | 3 hr |
| Sep 19, 6:13 PM MDT | Areal Flood Advisory | GJT | Pitkin | 3 hr |
Nearby
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. Warning verification from the Mesonet's Cow. Rebuilt daily.