Message 1’s have been issued for the entire District and will be valid until 9:00pm this evening. Storm have initiated along the higher terrain at this time and should move into the District in the next hour or two. Currently temperatures have been fairly suppressed with upper 50’s to low 60’s across the District. These cooler temperatures could help limit storm strength heading into this afternoon, however, with this approaching disturbance, combined with dew points currently in the low 50’s, there will be a good chance for moderate to heavy rainfall this afternoon and evening even out of weak to moderate thunderstorms. The best chance for showers and thunderstorms will be from 1-9pm with lingering rain showers possible through midnight. Storm motions today will continue from the S/SW to N/NE for the most part, with additional storms likely forming along outflow boundaries. These outflow storms will likely have the highest chance of bringing localized heavy rainfall as the storm movements will be non-existent at times. There will be multiple rounds of storms possible today as well, however the initial round should have highest chance for impactful rain showers, with additional rounds likely becoming much weaker into the evening hours. |
WORST CASE SCENARIO: A nearly stationary strong thunderstorm may result in up to 1.6” of rain in 45-75 minutes.
County-specific Quantitative Precipitation Outlook |
Precipitation Time | 30-Minute Rainfall and % Probability |
Message Potential |
---|---|---|---|
Plains | |||
Adams |
1200 PM TO
900 PM |
0.1" (90%) to 0.3" (60%) to 0.8" (20%) | |
Arapahoe |
1200 PM TO
900 PM |
0.1" (90%) to 0.3" (60%) to 0.8" (20%) | |
Boulder |
1200 PM TO
900 PM |
0.1" (90%) to 0.3" (60%) to 0.8" (20%) | |
Broomfield |
1200 PM TO
900 PM |
0.1" (90%) to 0.3" (60%) to 0.8" (20%) | |
Denver |
1200 PM TO
900 PM |
0.1" (90%) to 0.3" (60%) to 0.8" (20%) | |
Douglas |
1200 PM TO
900 PM |
0.1" (90%) to 0.3" (60%) to 0.8" (20%) | |
Jefferson |
1200 PM TO
900 PM |
0.1" (90%) to 0.3" (60%) to 0.8" (20%) | |
Foothills above 6500ft | |||
Boulder |
1200 PM TO
900 PM |
0.1" (90%) to 0.3" (80%) to 0.8" (40%) | |
Douglas |
1200 PM TO
900 PM |
0.1" (90%) to 0.3" (80%) to 0.8" (40%) | |
Jefferson |
1200 PM TO
900 PM |
0.1" (90%) to 0.3" (80%) to 0.8" (40%) |
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.