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Posted on: May 31, 2019

EMERGENCY MANAGEMENT PREPARATIONS

2019 FLOOD SEASON IS HERE 

EXECUTIVE SUMMARY 

- Colorado statewide snowpack as of May 30 is at 432% of normal for this date. All basins with the exception of the North Platte, South Platte, and Yampa/White are over 350% of average for this date. 

- Widespread, regional snowmelt flooding is not common for Colorado. However, isolated flooding and extended periods of high water are likely to occur this season. 

- Numerous watersheds have volumetric forecasts over 130% for the runoff season. It can be implied that these will have the most elevated risk for snowmelt flooding. These watersheds include: Blue, Upper Arkansas, entire Gunnison River basin, Dolores, San Miguel, Mancos, La Plata, Animas, Upper Rio Grande, and Saguache/San Luis 

- Extended forecasts have been released. The remainder of May is expected to be cool and wet for the entire state. The forecast for June indicates a wet month for the entire state, with cooler than normal temperatures on the Eastern Plains. The June forecast will be updated on May 31. 

- Snowmelt has significantly slowed down during the second half of May. This may result in a heightened risk of snowmelt flooding in June. 

- Areas downstream 

Additional information regarding the 2019 Spring Runoff and Flood Season may be found at:

/DocumentCenter/View/2249/2019_snow-and-runoff-outlook-Jun-6 

1. /DocumentCenter/View/2242/2019-Flood-Season-is-Approaching---May-30

2 ./DocumentCenter/View/2241/2019_snow-and-runoff-outlook-May-30

3. /DocumentCenter/View/2244/Flood-Resources-on-County-Website 

4. /DocumentCenter/View/2245/Weekly-Snowpack 

Additional Info...
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