| A second round of strong to severe thunderstorms developed late in the evening impacting NW portions of the District into the overnight period. These storms produced moderate to heavy rain, large hail and numerous lightning strikes. These storms are now located over Weld County to the N of the District and will leave a more stable air mass in their wake allowing Message 1’s to expire at 2:00 AM. Low level moisture continues to advect into the District from the east and may result in rain showers and possibly a weak thunderstorms re-developing into Wednesday morning but the threat for heavy rainfall has passed for the time being. The low level moisture continuing to stream into eastern Colorado and an upper level disturbance moving overhead will set the stage for an active weather day Wednesday. Storms that develop on Wednesday will be capable of producing heavy rainfall and may become severe with gusty winds, large hail and possibly even tornadoes during the afternoon and evening. Another Message Day looks to be on tap to account for the heavy rainfall threat. |
WORST CASE SCENARIO: Moderate to strong thunderstorms are able to re-develop and will have the potential to produce rainfall rates of 0.3-0.8" in 10-30 minutes.
| County-specific Quantitative Precipitation Outlook |
Precipitation Time | 30-Minute Rainfall and % Probability |
Message Potential |
|---|---|---|---|
| Plains | |||
| Adams |
Current TO
1000 AM WED |
Trace (75%) to 0.1" (40%) to 0.3" (10%) | |
| Arapahoe |
Current TO
1000 AM WED |
Trace (75%) to 0.1" (40%) to 0.3" (10%) | |
| Boulder |
Current TO
1000 AM WED |
Trace (75%) to 0.1" (40%) to 0.3" (10%) | |
| Broomfield |
Current TO
1000 AM WED |
Trace (75%) to 0.1" (40%) to 0.3" (10%) | |
| Denver |
Current TO
1000 AM WED |
Trace (75%) to 0.1" (40%) to 0.3" (10%) | |
| Douglas |
Current TO
1000 AM WED |
Trace (75%) to 0.1" (40%) to 0.3" (10%) | |
| Jefferson |
Current TO
1000 AM WED |
Trace (75%) to 0.1" (40%) to 0.3" (10%) | |
| Foothills above 6500ft | |||
| Boulder |
Current TO
1000 AM WED |
Trace (75%) to 0.1" (40%) to 0.3" (10%) | |
| Douglas |
Current TO
1000 AM WED |
Trace (75%) to 0.1" (40%) to 0.3" (10%) | |
| Jefferson |
Current TO
1000 AM WED |
Trace (75%) to 0.1" (40%) to 0.3" (10%) |
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.