848 FXUS01 KWBC 020812 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 400 AM EDT Fri Oct 02 2026 Valid 12Z Fri Oct 02 2026 - 12Z Sun Oct 04 2026 ...Another day of excessive rainfall threat across eastern Texas to eastern Oklahoma before shifting to the Gulf Coast and the Southeast this weekend... ...October heatwave building across central and southern California will spread northeast into the Great Basin during the weekend... A wet weather pattern lingering across the Southern Plains will gradually shift eastward into the Gulf Coast and the Southeast this weekend as an anomalous October heatwave builds across the western U.S. This pattern will deliver another day of moderate to heavy rainfall near a stationary front across eastern Texas to eastern Oklahoma where the Weather Prediction Center maintains a slight risk of excessive rainfall for today and into tonight. Thereafter, a tropical wave moving westward through the Caribbean will bring increasingly unsettled weather through the Gulf during the weekend, with showers and embedded thunderstorms lingering along the Gulf Coast where as much as a few inches of rainfall totals can be expected near the immediate coast. Meanwhile, the weather pattern has allowed the front to be more progressive across the northern tier of the country with a round of showers and a few thunderstorms moving through the Midwest and the Northeast today. These showers and storms will reach the Mid-Atlantic on Saturday and then linger into Sunday as a wave of low pressure develops along this front. An upper-level wave will also help shift the heavy rainfall threat into the Southeast on Sunday. As the wet pattern persists across the South, an anomalous ridge of high pressure will help build an October heatwave across the western U.S. through the weekend. Heat advisories and excessive heat warnings are in effect for portions of central and southern California. Saturday is forecast to be the hottest day of the period, running 15 to 20 degrees above normal, pushing coastal areas well into the 90s and valleys as high as 107ĀF. Warm nights will provide minimal relief. The heat will then spread further northeast during the weekend, with record-challenging high temperatures in the 80s and near 90 degrees emerging across the Great Basin. In contrast, Freeze Warnings and Frost Advisories are in effect near the Canadian border of the upper Midwest and upper Great Lakes. The associated cool airmass will then overspread much of the Northeast to deliver fine and cool fall weather. Meanwhile, a round of showers will precede a low pressure system moving across the Northern Plains this weekend followed by gusty northwesterly winds as cooler and drier air moves in behind a cold front. Kong Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$