| - | Message 1's have been issued for the entire District and will remain valid until 9:30pm this evening. |
| - | Thunderstorms are beginning to initialize along a wind convergence line that extends from roughly Arvada to Parker currently. With ample surface moisture in place storms that develop through the remainder of the afternoon may become strong with the potential to produce heavy rainfall that may lead to excessive runoff and possibly flash flooding. |
| - | Upper level steering winds from NW to SE at around 15mph will keep heavy rainfall relatively brief from most storms. Training of thunderstorm cells or strong thunderstorms that stall along surface wind convergence boundaries will pose a risk for an extended period of heavy rainfall. |
WORST CASE SCENARIO: Strong/slow moving thunderstorms or training of thunderstorm cells have the potential to produce up to 1.8" in 45-60 minutes.
| County-specific Quantitative Precipitation Outlook |
Precipitation Time | 30-Minute Rainfall and % Probability |
Message Potential |
|---|---|---|---|
| Plains | |||
| Adams |
Current TO
930 PM SUN |
0.1" (75%) to 0.3" (50%) to 0.8" (20%) | |
| Arapahoe |
Current TO
930 PM SUN |
0.1" (100%) to 0.3" (75%) to 0.8" (40%) | |
| Boulder |
Current TO
930 PM SUN |
0.1" (75%) to 0.3" (50%) to 0.8" (20%) | |
| Broomfield |
Current TO
930 PM SUN |
0.1" (75%) to 0.3" (50%) to 0.8" (20%) | |
| Denver |
Current TO
930 PM SUN |
0.1" (100%) to 0.3" (75%) to 0.8" (40%) | |
| Douglas |
Current TO
930 PM SUN |
0.1" (100%) to 0.3" (75%) to 0.8" (40%) | |
| Jefferson |
Current TO
930 PM SUN |
0.1" (90%) to 0.3" (60%) to 0.8" (30%) | |
| Foothills above 6500ft | |||
| Boulder |
Current TO
930 PM SUN |
0.1" (80%) to 0.3" (50%) to 0.8" (15%) | |
| Douglas |
Current TO
930 PM SUN |
0.1" (80%) to 0.3" (50%) to 0.8" (15%) | |
| Jefferson |
Current TO
930 PM SUN |
0.1" (80%) to 0.3" (50%) to 0.8" (15%) |
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.