| - | Message 1's have transitioned to Message 2's at 6pm to coincide with the NWS Flash Flood Watch. Message 2's/NWS Flash Flood Watch will remain valid until 9:00pm Saturday. |
| - | Strong, slow moving thunderstorms have developed over the District this afternoon and are expected to persist well into the evening. Moisture levels are expected to be higher than at any point this season and storms that develop today and tomorrow will be very capable of producing heavy rainfall that will lead to excessive runoff and possibly flash flooding. |
| - | The greatest threat for heavy rain from thunderstorms will be through about 10pm or midnight then rain showers may be capable of producing up to 1"/hr or higher rainfall rates overnight absent of any thunder. |
WORST CASE SCENARIO: A strong thunderstorm will have the potential to produce up to 3.5" in 45-60 minutes. Storms that persist beyond 60 minutes may produce locally higher amounts.
| County-specific Quantitative Precipitation Outlook |
Precipitation Time | 30-Minute Rainfall and % Probability |
Message Potential |
|---|---|---|---|
| Plains | |||
| Adams |
Current TO
1159 PM FRI |
0.2" (100%) to 0.6" (85%) to 1.8" (65%) | |
| Arapahoe |
Current TO
1159 PM FRI |
0.2" (100%) to 0.6" (85%) to 1.8" (65%) | |
| Boulder |
Current TO
1159 PM FRI |
0.2" (100%) to 0.6" (85%) to 1.8" (65%) | |
| Broomfield |
Current TO
1159 PM FRI |
0.2" (100%) to 0.6" (85%) to 1.8" (65%) | |
| Denver |
Current TO
1159 PM FRI |
0.2" (100%) to 0.6" (85%) to 1.8" (65%) | |
| Douglas |
Current TO
1159 PM FRI |
0.2" (100%) to 0.6" (85%) to 1.8" (65%) | |
| Jefferson |
Current TO
1159 PM FRI |
0.2" (100%) to 0.6" (85%) to 1.8" (65%) | |
| Foothills above 6500ft | |||
| Boulder |
Current TO
1159 PM FRI |
0.2" (100%) to 0.6" (85%) to 1.8" (65%) | |
| Douglas |
Current TO
1159 PM FRI |
0.2" (100%) to 0.6" (85%) to 1.8" (65%) | |
| Jefferson |
Current TO
1159 PM FRI |
0.2" (100%) to 0.6" (85%) to 1.8" (65%) |
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.