| Message 1’s have been issued for the entire District effective until 10:00pm this evening. Storms have started to initiate to the west already today and will likely continue into the afternoon with a couple of rounds of showers/thunderstorms possible for the District today. Elevated dew points, currently in the upper 50s to nearly 60 will result in efficient rainfall producing storms this afternoon and evening with a good chance for moderate to heavy rainfall for some locations leading to localized flooding. This initial round of storms will meander into the District over the next hour or so, with additional showers and thunderstorms likely forming along outflow boundaries into the afternoon. Storm motions will generally be west to east around 10mph, however, storms formed along outflow boundaries will have the largest potential for heavy rainfall as they tend to anchor in place for extended periods. Storms today may also contain gusty winds up to 60mph and hail up to 1.0” resulting in a LOW chance for severe weather, likely favoring eastern portions of the District. There will be an additional round of showers and thunderstorms later this evening, similar to yesterday between 7-10pm. Due to excess moisture in place, and good upper-level support, there will be a continued chance for moderate to heavy rainfall into the late evening hours. A few off and on showers will be possible overnight, although the threat of heavy rainfall should diminish after 10pm. Overnight will be cloudy as low temperatures drop into the low 60s on the plains. |
WORST CASE SCENARIO: Stationary thunderstorms, or training of thunderstorm cells have the potential to produce up to 2.00” total in 30-60 minutes.
| County-specific Quantitative Precipitation Outlook |
Precipitation Time | 30-Minute Rainfall and % Probability |
Message Potential |
|---|---|---|---|
| Plains | |||
| Adams |
Current TO
1000 PM SUN |
0.1" (75%) to 0.5" (50%) to 1" (25%) | |
| Arapahoe |
Current TO
1000 PM SUN |
0.1" (75%) to 0.5" (50%) to 1" (25%) | |
| Boulder |
Current TO
1000 PM SUN |
0.1" (60%) to 0.5" (40%) to 1" (20%) | |
| Broomfield |
Current TO
1000 PM SUN |
0.1" (60%) to 0.5" (40%) to 1" (20%) | |
| Denver |
Current TO
1000 PM SUN |
0.1" (75%) to 0.5" (50%) to 1" (25%) | |
| Douglas |
Current TO
1000 PM SUN |
0.1" (75%) to 0.5" (50%) to 1" (25%) | |
| Jefferson |
Current TO
1000 PM SUN |
0.1" (60%) to 0.5" (40%) to 1" (20%) | |
| Foothills above 6500ft | |||
| Boulder |
Current TO
1000 PM SUN |
0.1" (60%) to 0.5" (40%) to 1" (20%) | |
| Douglas |
Current TO
1000 PM SUN |
0.1" (60%) to 0.5" (40%) to 1" (20%) | |
| Jefferson |
Current TO
1000 PM SUN |
0.1" (60%) to 0.5" (40%) to 1" (20%) |
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.