| - | Temperatures will continue to be hot over the District today with temperatures climbing into the mid 90's to around 100 over the plains. Isolated areas may reach or exceed 100 degrees! Record high for today is 102 and will likely not be reached as there will be more clouds this afternoon. |
| - | There is a little more moisture to work with in the mid and upper levels of the atmosphere today and will result in isolated afternoon thunderstorms. The majority of the storms that develop today will be high-based producing gusty winds and minimal rainfall. Surface wind convergence may be able to energize a storm or two over the plains with a moderate to briefly strong thunderstorm possible but chances are quite low and will be the worst case scenario for today resulting in a LOW Message potential. |
| - | Thunderstorms will develop between 1-2pm over the higher terrain with best chances on the plains from 2-9pm. Typical storms will move from SW to NE at around 20mph. Stronger storms may move more erratically or remain nearly stationary on surface wind convergence boundaries. Shower and storm activity will be of the hit-or-miss variety and not everyone will experience a storm but the areas that do will receive a little relief from the heat this afternoon. |
WORST CASE SCENARIO: Strong thunderstorms will have the potential to produce rainfall rates of 0.3-0.8" in 10-30 minutes and up to 1.0" in 45-60 minutes.
A LOOK AHEAD: A cold front will move through ahead of daybreak tomorrow and result in much cooler temperatures with highs only in the 80's over the plains with 70's in the Front Range foothills. Moisture will increase behind the front but the cooler temperatures over the plains may help to retard thunderstorm development over the plains with scattered coverage over the foothills and Palmer Divide. If strong thunderstorms are able to develop Monday afternoon heavy rainfall will likely accompany the storms.
| Location | Prime Time | 30-Minute Rainfall and % Probability |
Message Potential |
|---|---|---|---|
| Plains | |||
| Adams |
200 PM TO
900 PM |
Trace (75%) to 0.1" (50%) to 0.3" (20%) | |
| Arapahoe |
200 PM TO
900 PM |
Trace (75%) to 0.1" (50%) to 0.3" (20%) | |
| Boulder |
200 PM TO
900 PM |
Trace (80%) to 0.1" (50%) to 0.3" (20%) | |
| Broomfield |
200 PM TO
900 PM |
Trace (75%) to 0.1" (50%) to 0.3" (20%) | |
| Denver |
200 PM TO
900 PM |
Trace (75%) to 0.1" (50%) to 0.3" (20%) | |
| Douglas |
200 PM TO
900 PM |
Trace (80%) to 0.1" (50%) to 0.3" (20%) | |
| Jefferson |
200 PM TO
900 PM |
Trace (80%) to 0.1" (50%) to 0.3" (20%) | |
| Foothills above 6500ft | |||
| Boulder |
100 PM TO
900 PM |
Trace (90%) to 0.1" (60%) to 0.3" (20%) | |
| Douglas |
100 PM TO
900 PM |
Trace (90%) to 0.1" (60%) to 0.3" (20%) | |
| Jefferson |
100 PM TO
900 PM |
Trace (90%) to 0.1" (60%) to 0.3" (20%) |
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.