| Message 1’s have been extended until 9:30pm for the entire District. Surface wind convergence resides over the District currently and is generating new thunderstorm development. Stronger thunderstorms may still produce moderate to brief heavy rainfall into the evening as well as hail and gusty winds. A large thunderstorm or training of thunderstorm cells will be the most likely culprits for extended periods of heavy rain over the next 1-2 hours. Typical storms will move from SW to NE at around 20mph, but stronger storms may move more slowly. Thunderstorm activity is expected to decrease between 9-10pm and eventually move east of the District. If thunderstorms still persist past 9:30pm Message 1’s may be extended further. |
WORST CASE SCENARIO: A slow moving strong thunderstorm or large thunderstorm cell may result in up to 1.5” of rain in 45-60 minutes
| County-specific Quantitative Precipitation Outlook |
Precipitation Time | 30-Minute Rainfall and % Probability |
Message Potential |
|---|---|---|---|
| Plains | |||
| Adams |
Current TO
930 PM SAT |
0.1" (75%) to 0.3" (40%) to 0.8" (20%) | |
| Arapahoe |
Current TO
930 PM SAT |
0.1" (75%) to 0.3" (40%) to 0.8" (20%) | |
| Boulder |
Current TO
930 PM SAT |
0.1" (60%) to 0.3" (30%) to 0.8" (10%) | |
| Broomfield |
Current TO
930 PM SAT |
0.1" (60%) to 0.3" (30%) to 0.8" (10%) | |
| Denver |
Current TO
930 PM SAT |
0.1" (80%) to 0.3" (40%) to 0.8" (20%) | |
| Douglas |
Current TO
930 PM SAT |
0.1" (80%) to 0.3" (40%) to 0.8" (20%) | |
| Jefferson |
Current TO
930 PM SAT |
0.1" (80%) to 0.3" (40%) to 0.8" (20%) | |
| Foothills above 6500ft | |||
| Boulder |
Current TO
930 PM SAT |
0.1" (60%) to 0.3" (30%) to 0.8" (10%) | |
| Douglas |
Current TO
930 PM SAT |
0.1" (60%) to 0.3" (30%) to 0.8" (10%) | |
| Jefferson |
Current TO
930 PM SAT |
0.1" (60%) to 0.3" (30%) to 0.8" (10%) |
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.