The Colorado Flood Threat Bulletin offers a daily assessment of flood potential around the state, issued at 11:00 am each day from May through September.
This product is issued daily before 11:00 am and is used to identify areas of the state that are at risk of flooding. Updates can be issued as needed by weather situation.
This product is an outlook of the flood threat and precipitation amount and chance in the state over the next 15 days.
This map is created by merging the 24-hr Storm Total Precipitation (STP) product observed regional WSR-88D and the MADIS observational database. Issued at 9:30 am every day.
Issue Date: Saturday, Sept. 20, 2014
Time Issued: 8:54 AM MDT
Forecaster: Brad Workman
FLATTENING RIDGE AND REINTRODUCTION OF MOISTURE LED TO MORE THUNDERSTORMS
The upper-level ridge maintained control over the state yesterday, but was flattened by a passing, upper-level trough that moved across the northern Rockies yesterday. This allowed for some moisture to return to the state and provided a bit of upper-level “support” for the increase in showers and thunderstorms. Most activity occurred across the higher terrain (especially across the northern half of Colorado), but a few storms moved over the northeastern plains. Rainfall was generally less than 0.1 inches, but a few of the higher reports from CoCoRaHS are Morgan County (0.89 inches) and Weld County (0.58 inches).
For an overview of statewide rainfall, be sure to check the 24-hour, radar-estimated precipitation map below. No flash flooding occurred yesterday.
Map Update: Our forecasters will continue to monitor weather conditions over all of Colorado's burn areas throughout the summer.
*Radar-estimated rainfall under 0.25 inches not shown
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