| - | Message 1's have been issued for NW portions of the District as a surface wind convergence boundary is in place and weak storms are beginning to develop over Boulder and Broomfield Counties. |
| - | A warm layer of air aloft results in uncertainty if the current storms can maintain or strengthen but with ample surface moisture in place if a stronger storm is able to develop it will contain heavy rainfall. Best chances for storms are near the surface wind convergence over NW portions of the District but these storms may produce their own outflow boundaries and produce additional storms which may become strong may lead to Message 1's being issued for the remainder of the District as the evening wears on. |
| - | Thunderstorms will be slow moving due to weak steering winds aloft. Best chances for thunderstorms will be through 10pm this evening. |
WORST CASE SCENARIO: A stationary strong thunderstorm will have the potential to produce up to 2.5" 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 |
0.1" (60%) to 0.4" (25%) to 1.2" (10%) | |
| Arapahoe |
Current TO
1000 PM THU |
0.1" (40%) to 0.4" (20%) to 1.2" (5%) | |
| Boulder |
Current TO
1000 PM THU |
0.1" (80%) to 0.4" (50%) to 1.2" (25%) | |
| Broomfield |
Current TO
1000 PM THU |
0.1" (80%) to 0.4" (50%) to 1.2" (25%) | |
| Denver |
Current TO
1000 PM THU |
0.1" (40%) to 0.4" (20%) to 1.2" (5%) | |
| Douglas |
Current TO
1000 PM THU |
0.1" (40%) to 0.4" (20%) to 1.2" (5%) | |
| Jefferson |
Current TO
1000 PM THU |
0.1" (60%) to 0.4" (25%) to 1.2" (10%) | |
| Foothills above 6500ft | |||
| Boulder |
Current TO
1000 PM THU |
0.1" (90%) to 0.4" (60%) to 1.2" (30%) | |
| Douglas |
Current TO
1000 PM THU |
0.1" (40%) to 0.4" (20%) to 1.2" (5%) | |
| Jefferson |
Current TO
1000 PM THU |
0.1" (75%) to 0.4" (50%) to 1.2" (20%) |
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.