| Message 1’s have been issued for the entire District and will be valid until 11:59pm this evening. Off and on showers have been impacting most parts of the District this morning and will continue before rainfall picks up into the afternoon. Widespread moderate to heavy rainfall is expected across the District, not only today, but likely over the next few days as an atypical pattern has emerged over the region. This pattern will result in storm motions to be nearly stationary at times, with waves of moderate to heavy rainfall resulting in a chance for over 1” of rainfall in under 60 minutes in some areas. Storm will generally move in from the east to west, with a good likelihood of showers both anchoring in place and training of moderate to heavy showers. A few isolated thunderstorms cannot be completely ruled out today, most likely in the afternoon hours if there is enough daytime heating. These shower and isolated thunderstorm chances will continue through the evening and possibly overnight and into Sunday. Sunday’s pattern doesn’t change with another good chance for rain showers throughout the day and with today’s rainfall, there will be higher chances for flooding throughout the day and into the evening hours. |
WORST CASE SCENARIO: A nearly stationary strong shower, training of moderate to heavy showers or weak to moderate thunderstorm may result in up to 2.4” of rain in under 60 minutes.
| County-specific Quantitative Precipitation Outlook |
Precipitation Time | 60-Minute Rainfall and % Probability |
Message Potential |
|---|---|---|---|
| Plains | |||
| Adams |
Current TO
1159 PM SAT |
0.2" (100%) to 0.6" (75%) to 1.2" (50%) | |
| Arapahoe |
Current TO
1159 PM SAT |
0.2" (100%) to 0.6" (75%) to 1.2" (50%) | |
| Boulder |
Current TO
1159 PM SAT |
0.2" (100%) to 0.6" (75%) to 1.2" (50%) | |
| Broomfield |
Current TO
1159 PM SAT |
0.2" (100%) to 0.6" (75%) to 1.2" (50%) | |
| Denver |
Current TO
1159 PM SAT |
0.2" (100%) to 0.6" (75%) to 1.2" (50%) | |
| Douglas |
Current TO
1159 PM SAT |
0.2" (100%) to 0.6" (75%) to 1.2" (50%) | |
| Jefferson |
Current TO
1159 PM SAT |
0.2" (100%) to 0.6" (75%) to 1.2" (50%) | |
| Foothills above 6500ft | |||
| Boulder |
Current TO
1159 PM SAT |
0.2" (100%) to 0.6" (60%) to 1.2" (40%) | |
| Douglas |
Current TO
1159 PM SAT |
0.2" (100%) to 0.6" (75%) to 1.2" (40%) | |
| Jefferson |
Current TO
1159 PM SAT |
0.2" (100%) to 0.6" (75%) to 1.2" (40%) |
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.