Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 345 AM EDT Sun Aug 27 2017 Valid 12Z Sun Aug 27 2017 - 12Z Tue Aug 29 2017 ...Life-threatening flooding to continue for southeast Texas in association with Tropical Storm Harvey... The well advertised flooding disaster for southeast Texas continues to unfold on Sunday in association with what is now tropical storm Harvey. This system is nearly stationary and little in the way of movement is expected through Monday. Although it is forecast to be downgraded to a tropical depression by Sunday night and beyond, the extremely heavy rainfall is forecast to persist into the beginning of the work week as a deep feed of moisture from the Gulf is ingested into the system. Prolific rainfall amounts approaching 3 FEET in places will be possible by the time this system finally moves out of the region! This will cause devastating flooding and residents of southeast Texas need to treat this as a dire situation and take the necessary steps to stay safe. The National Hurricane Center, excessive rainfall outlooks from the Weather Prediction Center, and the local forecast offices have additional information regarding the multitude of hazards expected. Elsewhere across the nation, the weather will be far more tame with some scattered showers and thunderstorms from the central plains to the Great Lakes region in association with a frontal boundary. Stormy weather currently near Florida is expected to move over the offshore waters of the southeast U.S. coast. A potential tropical disturbance and a stationary front offshore could result in some areas of moderate to heavy rainfall near the North and South Carolina coasts through Monday. Gusty winds and higher surf are also likely. In the temperature department, a heat wave will make weather headlines for much of California and Oregon for the first half of the work week. A building upper level ridge and sunny skies will allow for widespread 100+ degree temperatures away from the immediate coast, and overnight lows that will also be above normal. Heat advisories and excessive heat warnings are in effect. A high quality airmass will continue residing over the Northeast U.S. with temperatures feeling more like early autumn. D. Hamrick Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php