| Message 1’s have been issued for the entire District and will be valid until 9;00 PM this evening. A strong thunderstorm has entered Boulder County and will trek to the S/SE at 20-25mph and will encounter a surface wind convergence boundary that has set up over central portions of the Denver Metro area. This storm alone is capable of producing heavy rainfall but may result in additional thunderstorm activity and/or slower motions as it interacts with the wind convergence line over central areas of the District. A briefly anchored strong thunderstorm will produce the greatest threat for extended periods of heavy rainfall that may lead to excessive runoff. Typical thunderstorms will produce brief heavy rainfall, gusty winds and hail. Best chances for thunderstorm activity will be until 9:00 PM this evening. |
WORST CASE SCENARIO: A slower moving strong thunderstorm will have the potential to produce up to 1.5" in 45-60 minutes
| County-specific Quantitative Precipitation Outlook |
Precipitation Time | 30-Minute Rainfall and % Probability |
Message Potential |
|---|---|---|---|
| Plains | |||
| Adams |
Current TO
900 PM SAT |
0.1" (85%) to 0.3" (50%) to 0.8" (25%) | |
| Arapahoe |
Current TO
900 PM SAT |
0.1" (75%) to 0.3" (40%) to 0.8" (15%) | |
| Boulder |
Current TO
900 PM SAT |
0.1" (95%) to 0.3" (60%) to 0.8" (30%) | |
| Broomfield |
Current TO
900 PM SAT |
0.1" (90%) to 0.3" (60%) to 0.8" (25%) | |
| Denver |
Current TO
900 PM SAT |
0.1" (80%) to 0.3" (40%) to 0.8" (15%) | |
| Douglas |
Current TO
900 PM SAT |
0.1" (75%) to 0.3" (40%) to 0.8" (15%) | |
| Jefferson |
Current TO
900 PM SAT |
0.1" (75%) to 0.3" (40%) to 0.8" (15%) | |
| Foothills above 6500ft | |||
| Boulder |
Current TO
900 PM SAT |
0.1" (70%) to 0.3" (30%) to 0.8" (10%) | |
| Douglas |
Current TO
900 PM SAT |
0.1" (70%) to 0.3" (30%) to 0.8" (10%) | |
| Jefferson |
Current TO
900 PM SAT |
0.1" (70%) to 0.3" (30%) to 0.8" (10%) |
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.