| - | Message 1's have been issued for the entire District and will be valid until 9:00 PM. |
| - | Storms have initiated over the higher terrain at this time and should continue to build over the next hour before moving into the District. Best chance for storms in the District will start around 2pm and could last through 9pm before chances start to taper off into the late evening hours. Some cloud cover this morning could help keep the stronger storms at bay, although even weak to moderate storms will produce brief heavy rainfall. |
| - | Storm motions will generally be SW to NE, however, very week steering winds will likely result in nearly stationary storms at times. these slow storm motions and relatively high moisture values at the surface and aloft will result in thunderstorms that have the potential to produce heavy rainfall that may result in excessive runoff. |
WORST CASE SCENARIO: A strong, stationary thunderstorm or training of thunderstorm may result in up to 2.5" of heavy rain in 45-60 minutes.
| County-specific Quantitative Precipitation Outlook |
Precipitation Time | 30-Minute Rainfall and % Probability |
Message Potential |
|---|---|---|---|
| Plains | |||
| Adams |
100 PM TO
900 PM |
0.1" (60%) to 0.4" (40%) to 1.2" (10%) | |
| Arapahoe |
100 PM TO
900 PM |
0.1" (60%) to 0.4" (40%) to 1.2" (10%) | |
| Boulder |
100 PM TO
900 PM |
0.1" (80%) to 0.4" (60%) to 1.2" (20%) | |
| Broomfield |
100 PM TO
900 PM |
0.1" (70%) to 0.4" (50%) to 1.2" (15%) | |
| Denver |
100 PM TO
900 PM |
0.1" (60%) to 0.4" (40%) to 1.2" (10%) | |
| Douglas |
100 PM TO
900 PM |
0.1" (80%) to 0.4" (60%) to 1.2" (20%) | |
| Jefferson |
100 PM TO
900 PM |
0.1" (80%) to 0.4" (60%) to 1.2" (20%) | |
| Foothills above 6500ft | |||
| Boulder |
100 PM TO
900 PM |
0.1" (80%) to 0.4" (60%) to 1.2" (20%) | |
| Douglas |
100 PM TO
900 PM |
0.1" (80%) to 0.4" (60%) to 1.2" (20%) | |
| Jefferson |
100 PM TO
900 PM |
0.1" (80%) to 0.4" (60%) to 1.2" (20%) |
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.