Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 359 AM EDT Sun Apr 02 2017 Valid 12Z Sun Apr 02 2017 - 12Z Tue Apr 04 2017 ...Threats of severe weather and flash flooding will impact areas from the Southern Plains to the Southeast today and Monday... ...An increase in snow will occur through the Rockies... A low pressure system moving through the Southern Plains will be the primary driver for both the severe weather and flash flooding in the southern U.S. over the next few days. A cold front is currently moving eastward across central Texas this morning. This will eventually combine with a secondary low pressure system and emerging warm front that will lift north from the Gulf of Mexico during the day today. The merged system will bring plenty of moisture and instability across Texas as it continues to slowly progress eastward. The best convection is expected to develop along and just ahead of the cold front. The Storm Prediction Center has placed eastern Texas, central and northern Louisiana, and far southwest Mississippi in a moderate risk of severe weather for today through tonight(please check www.spc.ncep.noaa.gov for more information). There will also be a slight risk for flash flooding across eastern Texas and portions of the Lower Mississippi Valley. Flash flood watches are currently in effect along the Gulf Coast as a result. The cold front will continue its eastward trek across the Lower Mississippi Valley Sunday night and Monday--pushing the risk of severe weather and flash flooding eastward as well. The Storm Prediction Center has outlined much of the Southeast in a Moderate Risk for severe weather for Monday. The system will then quickly eject northeastward, which will result in rain and thunderstorm chances for much of the eastern U.S. Monday night into Tuesday. Another cold front will drop southeast across the Intermountain West and Rockies over the next couple of days. This will bring precipitation chances to these regions, with higher elevation snow expected today, generally in the northern Rockies. As the front progresses southward tonight and Monday, precipitation will occur throughout the Central Great Basin and Central Rockies--including higher elevation snow. Precipitation/snow is expected to increase Monday night into Tuesday, mainly across Colorado, as a low pressure system develops and intensifies along the southern extent of the frontal boundary as it pushes across the Southern Rockies and Southwest. Wix/Reinhart Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php