FTB 05-13-2019: Ridge Continues to Produce Above Average Temperatures to Start the Week

Issue Date: Monday, May 13th, 2019
Issue Time: 8:15AM MDT

–Flooding is NOT expected today

Colorado continues to reside under a high pressure system to start the week. This will bring dry, NNW flow into the state, which is shown by the yellow in the water vapor imagery below. Some pockets of residual moisture (blue) are helping produce cloud cover over the northern high terrains. As the high moves eastward throughout the day, the residual moisture under the ridge, daytime heating and a bit of mid-level energy from the approaching high will help produce scattered storms over the higher terrains this afternoon. As those storms are pushed off into the adjacent plains with the NNW flow, some weak thunderstorms may produce some light rainfall along with brief, gusty winds from virga. The best chance for measureable rainfall, with these storms, will occur over the northern Urban Corridor and Palmer Ridge. High temperatures will also continue their upward trend with temperatures 5-10°F warmer than Sunday. Flooding is not expected today.

Today’s Flood Threat Map

For more information on today’s flood threat, see the map below. For Zone-Specific forecasts, scroll below the map.

Zone-Specific Forecasts:

Front Range, Urban Corridor, Northern Mountains, Southeast Mountains, Palmer Ridge, Raton Ridge, Southeast Plains, Northeast Plains:

Morning temperatures already 5-10°F warmer than this time yesterday morning. Some light cloud cover is currently present over the northern high terrains. This afternoon, scattered storms are likely over the mountains. Greatest coverage will be highest over the northern Front Range and Northern Mountains where max 1-hr rain rates up to 0.2 inches are possible. A few storms may stray into the adjacent plains favoring the northern Urban Corridor and Palmer Ridge, although more virga is expected than measurable rainfall. Isolated totals up to 0.15 inches are possible. Flooding is not forecast.

Primetime: 2PM to 9PM

Northwest Slope, Grand Valley, Southwest Slope, Central Mountains, San Juan Mountains, San Luis Valley:

The upward trend in temperatures continues. As the high pressure center continues to move eastward throughout the day, expect an increase in cloudiness over the northwest corner of the state. A few showers are possible over the higher terrains this afternoon with the diurnal flow and residual moisture under the ridge. Isolated totals up to 0.1 inches are possible. Flooding is not expected today.

Primetime: 2PM to 9PM