| - | Northwesterly flow aloft will continue today leading to another chance for afternoon and evening rain showers/isolated thunderstorms. A good chance showers stay minimal, however with upper 40's to low 50's dew points currently, a low chance for moderate to brief heavy rainfall will remain, with increased chances if low-level moisture does not mix out into the upper 30's to low 40's through the morning hours as anticipated. |
| - | Initial storm development along the higher terrain will likely begin between noon and 2pm with the best chance for rain showers/isolated thunderstorms in the District between 2-7pm this evening. Typical thunderstorms today will produce light to brief moderate rain and breezy winds. Storm motions will be fairly brisk, between 10-20mph from the WNW to ESE, however a gust front, or outflow boundary has the potential to produce storms that anchor in place for an extended period of time. Storms are expected to strengthen E of the I-25 corridor possibly becoming strong over the plains, although the better chances for strong storms today should be well east of the District boundaries. |
| - | Skies will gradually clear this evening with mild and dry conditions expected through the overnight and into Thursday. Overnight lows will dip into the low to mid 60's on the plains with low to mid 50's along the foothills. |
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 45-60 minutes.
A LOOK AHEAD: An uptick in mid to upper-level moisture tomorrow will increase chances of widespread rain showers/thunderstorms in the afternoon and early evening. A slight chance for storms to become severe, mainly from gusty winds and possibly large hail. Afternoon and evening storm chances continue Friday, again with a slight chance for severe weather, mainly towards the eastern plains at this time. Mid to upper-level moisture decreases into the weekend, however a chance will remain for afternoon rain showers/isolated thunderstorms both Saturday and Sunday.
| Location | Prime Time | 30-Minute Rainfall and % Probability |
Message Potential |
|---|---|---|---|
| Plains | |||
| Adams |
200 PM TO
700 PM |
Trace (50%) to 0.2" (30%) to 0.5" (15%) | |
| Arapahoe |
200 PM TO
700 PM |
Trace (50%) to 0.2" (30%) to 0.5" (15%) | |
| Boulder |
200 PM TO
700 PM |
Trace (50%) to 0.2" (20%) to 0.5" (10%) | |
| Broomfield |
200 PM TO
700 PM |
Trace (50%) to 0.2" (20%) to 0.5" (10%) | |
| Denver |
200 PM TO
700 PM |
Trace (50%) to 0.2" (20%) to 0.5" (10%) | |
| Douglas |
200 PM TO
700 PM |
Trace (50%) to 0.2" (20%) to 0.5" (10%) | |
| Jefferson |
200 PM TO
700 PM |
Trace (50%) to 0.2" (20%) to 0.5" (10%) | |
| Foothills above 6500ft | |||
| Boulder |
200 PM TO
700 PM |
Trace (60%) to 0.2" (30%) to 0.5" (10%) | |
| Douglas |
200 PM TO
700 PM |
Trace (60%) to 0.2" (30%) to 0.5" (10%) | |
| Jefferson |
200 PM TO
700 PM |
Trace (60%) to 0.2" (30%) to 0.5" (10%) |
MONITOR NATIONAL WEATHER SERVICE FOR SEVERE WEATHER STATEMENTS.