| - | After a nice break from the heat yesterday, temperatures will be climbing back into the lower 90's over the plains with 70's and 80's in the Front Range foothills which is near normal for this time of year. Surface moisture lingers behind the front that moved through early yesterday and with good daytime heating widely scattered afternoon thunderstorms will develop. |
| - | Thunderstorms will first initiate over the higher terrain to the W between noon-2pm. Upper level steering winds from NW to SE will push the storms onto the plains after 2pm. Prime time for thunderstorm activity is from 2-8pm. Typical thunderstorms today will produce light to brief moderate rain and breezy winds. Generally one round of storms is expected for the plains but not everyone will experience a meaningful storm today. |
| - | Storms are expected to strengthen E of the I-25 corridor possibly becoming strong over the plains but the better chances for strong storms today will be E of the District boundaries. If stronger storms are able to develop further W than expected then brief heavy rainfall may occur. The chances for stronger storms to develop appears low at this time. |
WORST CASE SCENARIO: Strong thunderstorms are able to develop with the potential to produce heavy rainfall of 0.4-1.0" in 10-30 minutes and up to 1.5" in 45-50 minutes.
A LOOK AHEAD: We will lose some moisture on Wednesday and temperatures will continue their ascent with highs over the plains in the mid 90's to around 100 degrees. With less available moisture thunderstorm activity will be high-based and isolated producing minimal rain and gusty winds. Better chances for thunderstorms on Thursday and Friday with temperatures backing off a few degrees.
| Location | Prime Time | 30-Minute Rainfall and % Probability |
Message Potential |
|---|---|---|---|
| Plains | |||
| Adams |
200 PM TO
800 PM |
Trace (80%) to 0.3" (50%) to 0.6" (15%) | |
| Arapahoe |
200 PM TO
800 PM |
Trace (80%) to 0.3" (50%) to 0.6" (15%) | |
| Boulder |
200 PM TO
800 PM |
Trace (75%) to 0.3" (40%) to 0.6" (10%) | |
| Broomfield |
200 PM TO
800 PM |
Trace (75%) to 0.3" (40%) to 0.6" (10%) | |
| Denver |
200 PM TO
800 PM |
Trace (75%) to 0.3" (40%) to 0.6" (10%) | |
| Douglas |
200 PM TO
800 PM |
Trace (80%) to 0.3" (50%) to 0.6" (10%) | |
| Jefferson |
200 PM TO
800 PM |
Trace (80%) to 0.3" (15%) to 0.6" (15%) | |
| Foothills above 6500ft | |||
| Boulder |
100 PM TO
800 PM |
Trace (90%) to 0.3" (50%) to 0.6" (15%) | |
| Douglas |
100 PM TO
800 PM |
Trace (90%) to 0.3" (50%) to 0.6" (15%) | |
| Jefferson |
100 PM TO
800 PM |
Trace (90%) to 0.3" (50%) to 0.6" (15%) |
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.