Issue Date: Monday, September 12th, 2016
Issue Time: 9:00 AM MDT
Summary:
The dry pattern that has defined the weather for the last few days gave way to showers throughout the state with a few isolated thunderstorms in the Southwest Slopes and the San Juan Mountains. The area of high pressure that had moved over the state yesterday gave way to a low-pressure trough that began to move in from the north. Moist low-level air from the south and southwest helped spark off showers throughout the day. Spotty showers began to move in from the west into the Grand Valley and Southwest Slopes in the morning hours and quickly spread eastward over the San Luis Valley in the mid-afternoon and southern portions of the Eastern Plains by the late afternoon and early evening hours. Throughout the evening and night hours, spotty showers also moved eastward through northern portions of the Northeast Plains with the encroachment of the low-pressure trough from the north. Observed rainfall totals were in general light with a few very localized heavier amounts, but rainfall thresholds for flooding were not exceeded.
For a closer look at rainfall totals in your area, please see the STP map below for a look at 24-hour precipitation totals.