| Message 1’s will be allowed to expire at 2:00 AM as the thunderstorms and heavier rain showers have dissipated. Light to moderate rain showers will continue possible for the remainder of the overnight period into daybreak Saturday morning. Rain showers and isolated to widely scattered thunderstorms are expected to increase in coverage as the morning wears on Saturday “upslope” flow will be in place along the I-25 corridor. Moisture will increase further and thunderstorms will be capable of producing heavy rainfall that may lead to excessive runoff and possibly flash flooding. If temperatures remain too cool in the lower 60's the precipitation may favor light to moderate rain showers versus heavy thunderstorm rain. Either way a wet day is in store for Saturday and Message 1’s will likely be issued by noon or before. |
WORST CASE SCENARIO: A moderate to strong thunderstorm is able to develop and may result in rainfall rates of 0.3-0.8" in 10-30 minutes.
| County-specific Quantitative Precipitation Outlook |
Precipitation Time | 30-Minute Rainfall and % Probability |
Message Potential |
|---|---|---|---|
| Plains | |||
| Adams |
Current TO
900 AM SAT |
Trace (80%) to 0.1" (60%) to 0.3" (30%) | |
| Arapahoe |
Current TO
900 AM SAT |
Trace (80%) to 0.1" (60%) to 0.3" (30%) | |
| Boulder |
Current TO
900 AM SAT |
Trace (80%) to 0.1" (60%) to 0.3" (30%) | |
| Broomfield |
Current TO
900 AM SAT |
Trace (80%) to 0.1" (60%) to 0.3" (30%) | |
| Denver |
Current TO
900 AM SAT |
Trace (80%) to 0.1" (60%) to 0.3" (30%) | |
| Douglas |
Current TO
900 AM SAT |
Trace (100%) to 0.1" (80%) to 0.3" (40%) | |
| Jefferson |
Current TO
900 AM SAT |
Trace (80%) to 0.1" (60%) to 0.3" (30%) | |
| Foothills above 6500ft | |||
| Boulder |
Current TO
900 AM SAT |
Trace (80%) to 0.1" (60%) to 0.3" (30%) | |
| Douglas |
Current TO
900 AM SAT |
Trace (100%) to 0.1" (80%) to 0.3" (40%) | |
| Jefferson |
Current TO
900 AM SAT |
Trace (80%) to 0.1" (60%) to 0.3" (30%) |
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.