####018003364#### FXUS01 KWBC 021937 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 337 PM EDT Thu May 02 2024 Valid 00Z Fri May 03 2024 - 00Z Sun May 05 2024 ...The active weather pattern to continue across the Central to Southern Plains with potential for additional severe weather, heavy rains and flash flooding... ...Wetter weather pattern for the Ohio Valley into the Mid-Atlantic, along with cooler weather... ...Strong front to move into the Pacific Northwest and northern California this weekend producing widespread heavy precipitation and late season mountain snows... The recent active spring weather pattern across large portions of the central U.S. expected to continue over the next few days. A surface frontal boundary currently stretching from the Southern Plains into the Great Lakes and a second front forecast to sink southward from the Central Plains into the Southern Plains will be the focus for the potential for additional showers and thunderstorms. Severe weather is possible across portions of the Central to Southern Plains near these fronts, along with heavy rains and localized flash flooding. Flood watches are currently in effect across portions of southern Oklahoma, eastern Texas into northwest Louisiana. Moderate to major river flooding is occurring across these area from recent heavy rains, with additional heavy rain potential possibly exacerbating ongoing flooding conditions. While conditions have been wet across the Central to Southern Plains toward the Mid to Lower Mississippi Valley of late, drier conditions have persisted farther to the east. Some relief from the recent dry weather across the east on tap over the next few days with some much needed rains falling from the Ohio Valley into the Mid-Atlantic. Cooler temperatures also expected for the late week and into the weekend across portions of the Northeast into the Mid-Atlantic. Record high temperatures across portions of the Mid-Atlantic and Ohio Valley on Thursday will replaced with much cooler temperatures from a combination of cloud cover, rainfall and winds blowing off the still cool western Atlantic. A strong cold front will be pushing inland into the Pacific Northwest late Friday and into northern California on Saturday. This front will be producing some late season heavy precipiation totals across much of northern California, north through the Oregon Cascades, southern Washington Cascades and from the Olympic Range of Washington, southward along the Washington and Oregon coasts. Late season snows are possible through the Oregon and Washington Cascades and the northern to Central Sierra Range with accumulations in excess of a foot possible across the northern Sierra. In addition to the heavy precipitation and late season snows associated with this strong front, temperatures will be much below average across much of the West coast on Saturday with highs 10 to 20 degrees colder than average. These colder than average temperatures are expected to persist through Sunday while also spreading farther inland into the Great Basin and portions of the Southwest. Oravec Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$