{"id":1194,"date":"2015-07-09T15:10:14","date_gmt":"2015-07-09T21:10:14","guid":{"rendered":"https:\/\/www.coloradofloodthreat.com\/?p=1194"},"modified":"2015-07-09T15:10:14","modified_gmt":"2015-07-09T21:10:14","slug":"fto-07-09-2015-active-weather-to-continue-fueled-by-subtropical-moisture","status":"publish","type":"post","link":"https:\/\/archive-coftb.dewberryanalytics.com\/?p=1194","title":{"rendered":"FTO 07-09-2015: Active Weather To Continue, Fueled By Subtropical Moisture"},"content":{"rendered":"

Issue Date: 7\/9\/2015
\nIssue Time: 3:00PM
\nValid Dates: 7\/10 – 7\/24<\/p>\n

Overview:<\/h3>\n

\"threat_timeline.20150709\"<\/a>
\n“Green and wet” is an appropriate way to describe the landscape of Colorado over the past few months. After experiencing the state’s wettest May on record, June and July have not failed to disappoint in the rainfall department. With a consistently active eastern Pacific storm track, both in the tropics and subtropics, disturbances have slammed into the normally stout high-pressure over the Southwest U.S. Over the next 15 day period, covering from July 10th through the 24th, we see a continuation of the active pattern. The water vapor image, below, shows the features at hand. First, we see the upper-level low-pressure of CA. This will impact Colorado on Friday before retreating back westward. That’s right, westward: this feature will continue to influence the state in the coming period. Second, after a few days of quietness, a tropical disturbance is expected to slip to the west of the eastward-displaced southern U.S. ridge to provide more rainfall early next week. Finally, after a few more days of relatively quiet weather, things really turn interesting. There is now growing confidence that at least one tropical storm or hurricane will track far enough up the Mexican coast to feed moisture into Colorado. This will provide another elevated flood threat for a prolonged period starting sometime late next weekend.
\"watervapor_20150709\"<\/a>Now, on to the details of the three expected precipitation events.<\/p>\n

Event #1: Friday (7\/10)<\/strong><\/p>\n

An Elevated<\/strong><\/span> flood threat, mainly for the southeast corner of state<\/em><\/p>\n

Another major impulse from the California low pressure system will tail off and cross Colorado on Friday. Moisture will be on the decline west of the Divide<\/span>, limiting rainfall to below 1 inch for most places. However, much higher moisture and instability will be present over the Plains, especially the southeast quadrant of the state. There, thunderstorm activity could provide up to 2 inches of rainfall, elevating the flood threat during the afternoon and evening.<\/p>\n