| - | Message 1's have been issued for Adams, Arapahoe, Boulder, Broomfield, and Denver Counties and will be valid until midnight tonight. Additional Message 1's maybe needed as the evening progresses. |
| - | Thunderstorms have developed to the N and NW of the District and will be moving into the District shortly. Strong storms have a history of large hail and brief moderate to heavy rainfall. Storm motions of NW to SE at around 25mph will result in an heavy rainfall being brief but a quick 0.5"/10 mins is possible which may lead to excessive runoff roadways. Rainfall amounts of up to 1" are unlikely due to the fast storm motions and hail threat. |
| - | Thunderstorms are expected to have exited the District by midnight with generally dry conditions after that time. |
WORST CASE SCENARIO: A slow moving strong thunderstorm or a very large thunderstorm may produce up to 1.6" in 45-60 minutes. Supplemental QPF is available at https://qpf.udfcd.org
| County-specific Quantitative Precipitation Outlook |
Precipitation Time | 30-Minute Rainfall and % Probability |
Message Potential |
|---|---|---|---|
| Plains | |||
| Adams |
Current TO
1159 PM FRI |
0.1" (75%) to 0.3" (55%) to 0.8" (15%) | |
| Arapahoe |
Current TO
1159 PM FRI |
0.1" (60%) to 0.3" (30%) to 0.8" (10%) | |
| Boulder |
Current TO
1159 PM FRI |
0.1" (65%) to 0.3" (40%) to 0.8" (15%) | |
| Broomfield |
Current TO
1159 PM FRI |
0.1" (65%) to 0.3" (45%) to 0.8" (15%) | |
| Denver |
Current TO
1159 PM FRI |
0.1" (75%) to 0.3" (55%) to 0.8" (15%) | |
| Douglas |
Current TO
1159 PM FRI |
0.1" (50%) to 0.3" (30%) to 0.8" (5%) | |
| Jefferson |
Current TO
1159 PM FRI |
0.1" (55%) to 0.3" (35%) to 0.8" (5%) | |
| Foothills above 6500ft | |||
| Boulder |
Current TO
1159 PM FRI |
0.1" (60%) to 0.3" (40%) to 0.8" (5%) | |
| Douglas |
Current TO
1159 PM FRI |
0.1" (60%) to 0.3" (40%) to 0.8" (5%) | |
| Jefferson |
Current TO
1159 PM FRI |
0.1" (60%) to 0.3" (40%) to 0.8" (5%) |
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.