- | A boom or bust thunderstorm forecast remains in place today as easterly winds are keeping surface moisture elevated along the I-25 corridor with dew points currently in the low 50's to lower 60's. A warm layer of air aloft will need to be overcome in order to tap into the rich surface moisture as fuel for thunderstorms. There remains a high amount of uncertainty as to whether or not all the ingredients will come together just right for storms today but if they form they will become strong/severe. |
- | Daytime heating alone is likely not be enough to overcome the stable/warm layer aloft but outflow boundaries from thunderstorms outside the District could be the trigger needed for thunderstorm initiation within District boundaries. Thunderstorms are currently building south along the crest of the Palmer Divide and these initial storms will have the potential to produce a rain cooled outflow/gust front that may move northward over the coming hours. |
- | If temperatures warm enough to initiate convection or if a thunderstorm outflow boundary moves into the District Message 1's may need to be issued. The next few hours will be telling on how the rest of the afternoon will play out. |
WORST CASE SCENARIO: Moisture levels remain elevated with strong/slow moving thunderstorms having the potential to produce up to 1.8" in 45-60 minutes.
A LOOK AHEAD: The heat wave intensifies on Tuesday with temperatures reaching the mid 90's to around 100 degrees over the plains. Temperatures will peak on Tuesday in the upper 90's to lower 100's. Dry conditions are expected both days.
Location | Prime Time | 30-Minute Rainfall and % Probability |
Message Potential |
---|---|---|---|
Plains | |||
Adams |
300 PM TO
900 PM |
Trace (60%) to 0.3" (30%) to 0.8" (15%) | |
Arapahoe |
300 PM TO
900 PM |
Trace (60%) to 0.3" (30%) to 0.8" (15%) | |
Boulder |
300 PM TO
900 PM |
Trace (60%) to 0.3" (30%) to 0.8" (15%) | |
Broomfield |
300 PM TO
900 PM |
Trace (60%) to 0.3" (30%) to 0.8" (15%) | |
Denver |
300 PM TO
900 PM |
Trace (60%) to 0.3" (30%) to 0.8" (15%) | |
Douglas |
300 PM TO
900 PM |
Trace (80%) to 0.3" (40%) to 0.8" (15%) | |
Jefferson |
300 PM TO
900 PM |
Trace (75%) to 0.3" (35%) to 0.8" (15%) | |
Foothills above 6500ft | |||
Boulder |
100 PM TO
900 PM |
Trace (80%) to 0.3" (40%) to 0.8" (15%) | |
Douglas |
100 PM TO
900 PM |
Trace (90%) to 0.3" (40%) to 0.8" (15%) | |
Jefferson |
100 PM TO
900 PM |
Trace (90%) to 0.3" (40%) to 0.8" (15%) |
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.