FTB 05-28-2016: Near Perfect Start To The Holiday Weekend

Issue Date: Saturday, May 28th, 2016
Issue Time: 10:00 AM

— LOW flood threat today for parts of Grand Valley (landslide possible)

The trend of quieter weather will continue for Colorado after the passage of Thursday’s impressive low-pressure system. A transient upper-level ridge will build over the state today, which will promote subsidence in the mid-levels of the atmosphere. Precipitable water values, shown below, continue to fall or held steady just under their seasonal normals today. In all, a typical summer-like diurnal pattern is expected today, with scattered showers and a weak thunderstorm building in the highest elevations by early afternoon. Activity will move quickly eastward into the Cheyenne and Palmer Ridges with generally light rainfall amounts. Despite the quieter weather, hikers should be aware that even weak thunderstorms can cause dangerous lightning. A small cumulus cloud can transition into a lightning producing storm in only 20 minutes.


We continue to point out that a Flash Flood Watch, issued by the Grand Junction NWS, remains active today for the Salt Creek landslide area (Mesa County). We urge everyone in that area to keep up to date with local officials or the NWS.

Today’s Flood Threat Map

FTB_20160529Flood Threat Legend

Zone-Specific Forecasts:

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

Mostly sunny and warmer today with isolated to scattered showers, and perhaps a weak thunderstorm, developing by early afternoon and lasting into the early evening hours. Max hourly rain rates up to 0.5 inches are possible. Flooding is not expected today.

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

Mostly sunny and warmer today. An isolated shower is possible in the early to mid-afternoon hours. Max hourly rain rates up to 0.25 inches are possible. Flooding is not expected today.