textproduct: Pueblo

KEY MESSAGES

- Showers and thunderstorms increase in coverage tomorrow, especially across the mountains and valleys.

- Showers and storms continue to increase in coverage for the end of the week and into early next week.

SHORT TERM /THROUGH TONIGHT/

Issued at 1235 AM MDT Wed Aug 12 2026

Today and Tonight: Heading into midweek, active weather continues for south central and southeastern Colorado. A favorable monsoon pattern will start to take shape through Wednesday, as moist southwesterly flow develops as high pressure sits to the southeast across many of the Gulf states. With increasing deep moisture, and modest lift from orographics and vort maxes within the broader flow, afternoon and evening showers and thunderstorms are expected for the region. The greatest coverage of precipitation is expected across the mountains and valleys, where scattered to numerous showers and storms are anticipated. Across the plains, coverage will be less, with more isolated to scattered showers and storms. With any more organized thunderstorm, gusty outflow winds to 50-55 mph, heavy rainfall, and frequent lightning will be possible. With that all said, showers and thunderstorms are expected to lessen in coverage heading into the overnight hours, though isolated rain showers may persist along the mountains given moist, though weak, flow over the terrain. Beyond all of that, winds will remain relatively light, around 10-15 mph, outside of thunderstorms, with mostly clear skies early giving way to partly to mostly cloudy skies in the afternoon and evening. As for temperatures, one more hot and above seasonal day is in store the region. The plains will warm into the mid 90s to low 100s, the valleys into the mid 80s, and the mountains into the mid 50s to mid 70s. Then for lows, while a cold front will start to push southward during the overnight hours, some cloud cover, gusty winds, and increasing moisture behind the front will keep temperatures fairly mild. With that, the plains will cool into the mid to upper 60s, the valleys into the upper 40s to mid 50s, and the mountains into the upper 30s to low 50s.

LONG TERM /THURSDAY THROUGH TUESDAY/

Issued at 1235 AM MDT Wed Aug 12 2026

Thursday - Tuesday: For the long term period, active weather continues for south central and southeastern Colorado. The favorable monsoon pattern will continue for the region, with the high pressure remaining to the southeast, and moist southwesterly flow continuing to stream over the area. With that said, there may be some wobble in the location of the high pressure early next week, but model guidance is in decent agreement about keeping moist flow in place, leading to better confidence in the forecast. So, with this pattern in place, daily showers and thunderstorms are expected, with heavy rain, gusty outflow winds, and frequent lightning the main hazards. In addition, flash flooding may become a concern heading into this period due to both slow moving thunderstorms and the potential for areas to receive multiple rounds of heavy rain on different days. Otherwise, winds are expected to remain light outside of thunderstorms, with increased cloud cover during the afternoon and evening hours. Looking at temperatures, thanks to the aforementioned cold front passage Wednesday night, much of the region will cool to around and below seasonal values for mid August.

AVIATION /18Z TAFS THROUGH 18Z THURSDAY/

Issued at 1102 AM MDT Wed Aug 12 2026

VFR conditions and mainly dry weather are anticipated this forecast period for all of the terminals. Afternoon and early shower and thunderstorm development is anticipated, however, the highest coverage of development will stay over and near the higher terrain. Given the low chance that a few storms do make it off of the mountains this afternoon, have maintained the prob30 at all sites.

The main impacts with winds this period will be early this evening for COS and PUB as a fairly strong front pushes south over the plains. Made little changes to the wind shift, though did bump the shift by an hour for COS and did increase the speeds and gusts by a couple of knots. Will keep an eye on this shift, as a small window of higher speeds and gusts will be possible.

PUB WATCHES/WARNINGS/ADVISORIES

None.