FTB 06-21-2020: Typical Late-June Day with Rumbles of Thunder

Issue Date: 6/21/2020
Issue Time: 8:15 AM

— Flooding is NOT expected today

Summer-time warmth is the headline of today’s weather act, with high temperatures near yesterday’s highs. Different from yesterday, however, is a disturbance that will scrape across Colorado, providing the opportunity for a few isolated-to-widely scattered thunderstorms this afternoon and evening. Moisture remains limited in the low-levels of the atmosphere, so any storm activity is expected to produce more gusty winds than rain. The best chance for measurable precipitation will be in the High Country regions of the Northwest Slope, Northern Mountains, Central Mountains, and Front Range, as well as near the northern CO border in the Urban Corridor and Northeast Plains regions. For the rest of the Urban Corridor/Northeast Plains, Palmer Ridge, Southeast Mountains, Raton Ridge, and Southeast Plains regions, very little precipitation is expected to reach the surface.

Today’s Flood Threat Map

For more information on today’s flood threat, see the map below. Hover over the threat areas for more details and click on burn areas to learn more about them. For Zone-Specific forecasts, scroll below the threat map.

Zone-Specific Forecasts

Urban Corridor, Palmer Ridge, Northeast Plains, Southeast Plains, and Raton Ridge:

Summertime warmth is the main weather story today, with high temperatures near yesterday’s highs. A few isolated-to-widely scattered thunderstorms will rumble during the afternoon and evening hours, producing more gusty winds than rain. The best chance for measurable precipitation will be along the northern CO border. Rain rates are expected to be less than 0.2 inches/hour.

Timing: 2 PM – 10 PM

Front Range, Southeast Mountains, Northwest Slope, Northern Mountains, Central Mountains, Grand Valley, Southwest Slope, San Juan Mountains, and San Luis Valley:

Isolated-to-widely scattered thunderstorms will rumble today/tonight, with the best coverage over the Northwest Slope, Northern Mountains, Front Range, and Central Mountains regions. Lesser coverage is expected elsewhere, with chances diminishing the further southwest you go. Any storm activity will produce more wind than rain, with the best chance of measurable precipitation over the Northwest Slope, Northern Mountains, Front Range, and Central Mountains regions. Rain rates are expected to be less than 0.15 inches/hour.

Timing: Noon – 10 PM