| - | Message 2's for Boulder, Broomfield and Jefferson Counties will continue valid until 10:00pm. Message 1's for the remainder of the District will also continue valid until 10:00pm as the threat for heavy rainfall remains. |
| - | Initial storm development has held off as sufficient cloud cover helped limit daytime heating today. Models are still indicating a decent chance for a round or two of rain showers this evening. The best chance for storms looks to be from 5pm, through 8pm with scattered rain showers/isolated thunderstorms possible between 8-11pm before rainfall chances taper off through the overnight. |
| - | Storms that do develop will be efficient rainfall producers very capable of producing heavy downpours that may lead to excessive runoff and possibly flash flooding. Storms will be relatively slow moving from NW to SE between 10-15mph, with a chance some storms may anchor in place leading to an increase chance for isolated long lasting moderate to heavy rainfall, especially along the foothills this evening. |
WORST CASE SCENARIO: A strong anchored thunderstorm or training of moderate to strong thunderstorms may result in rainfall rates up to 3.0" in 45-75 minutes.
| County-specific Quantitative Precipitation Outlook |
Precipitation Time | 30-Minute Rainfall and % Probability |
Message Potential |
|---|---|---|---|
| Plains | |||
| Adams |
Current TO
1000 PM THU |
0.3" (50%) to 1.0" (25%) to 2.0" (5%) | |
| Arapahoe |
Current TO
1000 PM THU |
0.3" (50%) to 1.0" (25%) to 2.0" (5%) | |
| Boulder |
Current TO
1000 PM THU |
0.3" (50%) to 1.0" (25%) to 2.0" (5%) | |
| Broomfield |
Current TO
1000 PM THU |
0.3" (50%) to 1.0" (25%) to 2.0" (5%) | |
| Denver |
Current TO
1000 PM THU |
0.3" (50%) to 1.0" (25%) to 2.0" (5%) | |
| Douglas |
Current TO
1000 PM THU |
0.3" (50%) to 1.0" (25%) to 2.0" (5%) | |
| Jefferson |
Current TO
1000 PM THU |
0.3" (50%) to 1.0" (25%) to 2.0" (5%) | |
| Foothills above 6500ft | |||
| Boulder |
Current TO
1000 PM THU |
0.3" (75%) to 1.0" (50%) to 2.0" (10%) | |
| Douglas |
Current TO
1000 PM THU |
0.3" (75%) to 1.0" (50%) to 2.0" (10%) | |
| Jefferson |
Current TO
1000 PM THU |
0.3" (75%) to 1.0" (50%) to 2.0" (10%) |
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.