Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 249 PM EST Mon Mar 04 2024 Valid 00Z Tue Mar 05 2024 - 00Z Thu Mar 07 2024 ...Another storm to bring additional heavy snows to northern California and southern Oregon... ...A wet weather pattern for large areas to the east of the Mississippi River... ..Much above average temperatures expected for much of the lower 48 to the east of the Rockies over the next few days... ...Record high early morning lows possible from the Lower Lakes/Ohio Valley into the Northeast... An area of low pressure off the northern California/Pacific Northwest coast will be moving slowly southeastward Tuesday and Wednesday to a position off the central to southern California coast. This storm will be spreading additional moderate to heavy precipitation amounts into northern California and southwestern Oregon over the next two days, with the potential for additional snowfall totals of 1 to 2 feet from the southern Oregon Cascades into the northern Sierra. While these totals will be much less than the previous more long lasting storm, travel will remain difficult and the additional heavy snows will exacerbate recovery from the first storm. Winter storm warnings are in effect for the northern Sierra, northern California Coast Range and into southern Oregon for additional heavy snow amounts. The good news for this area of the country is that after the next round of heavy snows, more tranquil weather is expected for the remainder of the week. A wet weather pattern is in store for large areas of the lower 48 to the east of the Mississippi River over the next few days. This will be along and to the east of a slow moving frontal boundary stretching southwest to northeast from the Southern Plains into the Mid Mississippi Valley, Ohio Valley and into the Northeast and ahead of two areas of low pressure moving from the central Gulf coast up along the east coast. Moisture values expected to be much above average along and to the east of this front and ahead of the two areas of low pressure moving along the east coast, supporting the potential for widespread regions of precipitation. The heaviest rainfall totals expected from the central Gulf coast, across portions of the Southeast and Mid-Atlantic where the two areas of low pressure are expected to move across. The lead area of low pressure will spread rains across the Mid-Atlantic Monday night and into the Northeast on Tuesday. This will be followed by another low moving from the central Gulf coast Tuesday night, into the Southeast Wednesday and the Mid-Atlantic Wednesday night. Rainfall totals of 1 to 2 inches possible across these regions, with isolated areas of flash flooding possible, especially in urbanized areas of the central Gulf coast. Much above average, spring like temperatures will persist for much of the week for areas to the east of the Rockies. Many areas will see high temperatures Tuesday and Wednesday 15 to 25+ degrees above average. The warmest temperatures are expected across the Southern Plains into the Lower Mississippi Valley where widespread highs in the 70s and 80s are forecast. There are not expected to be any record high temperatures across these areas over the few days, however, there is potential for widespread record high morning low temperatures from the Lower Great Lakes into the Northeast where the above mentioned much above average moisture values will keep temperatures from cooling at night. Below to much below average temperatures are expected from the Northern High Plains, Northern Rockies, Pacific Northwest and northern California. Across these regions, high temperatures are expected to be approximately 10 to 20 degrees colder than average on Tuesday and Wednesday. Oravec Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php