| Message 1’s will continue to be valid as the threat for heavy rainfall continues as yet another round or two of showers and thunderstorms are expected this evening. A new batch of showers and thunderstorms are developing to the W and will be moving through the District over the next 1-4 hours. These evening thunderstorms are expected to be weaker than previous storms today but with surface dew points in the upper 50's to mid 60's the storms that do develop will be efficient rainfall producing storms and even a moderate thunderstorm will be capable of producing brief heavy rainfall. Some areas of the District have also experienced wetting rains and the ground may be becoming saturated and it may not take as much rain to produce excessive runoff in areas that have already been impacted by strong thunderstorms. Thunderstorms will continue to be fast moving from W to E at 20-25mph for typical storms with stronger storms possibly moving more NW to SE. After 9 or 10pm the threat for thunderstorms will to diminish and Message 4's (All Clear) may be issued prior to midnight should generally dry conditions develop. |
WORST CASE SCENARIO: A slower moving strong thunderstorm or training of thunderstorm cells has the potential to produce up to 2.0” in 45-60 minutes.
| County-specific Quantitative Precipitation Outlook |
Precipitation Time | 30-Minute Rainfall and % Probability |
Message Potential |
|---|---|---|---|
| Plains | |||
| Adams |
Current TO
1159 PM THU |
0.1" (70%) to 0.5" (40%) to 1" (15%) | |
| Arapahoe |
Current TO
1159 PM THU |
0.1" (70%) to 0.5" (40%) to 1" (15%) | |
| Boulder |
Current TO
1159 PM THU |
0.1" (70%) to 0.5" (40%) to 1" (15%) | |
| Broomfield |
Current TO
1159 PM THU |
0.1" (70%) to 0.5" (40%) to 1" (15%) | |
| Denver |
Current TO
1159 PM THU |
0.1" (70%) to 0.5" (40%) to 1" (15%) | |
| Douglas |
Current TO
1159 PM THU |
0.1" (70%) to 0.5" (40%) to 1" (15%) | |
| Jefferson |
Current TO
1159 PM THU |
0.1" (70%) to 0.5" (40%) to 1" (15%) | |
| Foothills above 6500ft | |||
| Boulder |
Current TO
1159 PM THU |
0.1" (70%) to 0.5" (40%) to 1" (15%) | |
| Douglas |
Current TO
1159 PM THU |
0.1" (70%) to 0.5" (40%) to 1" (15%) | |
| Jefferson |
Current TO
1159 PM THU |
0.1" (70%) to 0.5" (40%) to 1" (15%) |
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.