Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 353 PM EDT Mon Sep 21 2020 Valid 00Z Tue Sep 22 2020 - 00Z Thu Sep 24 2020 ...Tropical Storm Beta will continue to cause flooding and life-threatening storm surge for portions of Texas and Louisiana... ...Large swells caused by Teddy could cause life-threatening surf and rip current conditions along the U.S. East Coast... ...Another frosty morning is possible in the Central Appalachians as below normal temperatures continue in the East and westward into the Southern Plains... Tropical Storm Beta is continuing its slow trek initially northwestward, and is expected to make landfall along the middle Texas coast tonight. Tropical Storm Warnings are in effect for portions of the Texas and Louisiana coasts where winds could be tropical storm force. Additionally, life-threatening storm surge near times of high tide is a danger through Tuesday. Long duration flooding rains will be a threat particularly due to Beta's slow movement. Flash, urban, and minor river flooding is likely from the middle Texas coast into southeastern Louisiana, and Moderate Risks of flash flooding are in place through Tuesday. Some locally heavy rain is possible northward into eastern Oklahoma and northeastern Texas. Beta should move slowly eastward through Wednesday, and heavy rainfall is expected to spread across much of the Lower Mississippi Valley. Hurricane Teddy moving northward through the Atlantic Ocean is forecast to transition to a potent post-tropical cyclone and move across the Canadian maritimes around midweek. In the U.S., the main impacts of Teddy will be the potential for large swells along the East Coast, which will likely cause life-threatening surf and rip current conditions. Eastern Maine could get some rain from Teddy's western edge, and gusty winds can be expected. Elsewhere, a frontal system approaching the Pacific Northwest should bring rain to the Northwest Tuesday night into Wednesday. A round of light rain and thunderstorms is possible in the Upper Midwest Wednesday as a front passes through, and isolated showers and thunderstorms are possible in the Four Corners region mainly Tuesday afternoon, some of which could be dry thunderstorms, creating a fire danger threat. The rest of the country should be generally dry. High pressure dominating the eastern U.S. will lead to continued cool temperatures Tuesday morning--frost is possible once again for portions of the Central Appalachians, and a few record lows are in jeopardy in the East. Cool weather is also forecast westward into the Southern Plains under the influence of rain and cloudiness from Beta. Meanwhile, the north-central U.S. in particular can expect above normal temperatures, with some locations approaching 90 degrees on Tuesday. Tate Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php