During May 1-5, 2025, heavy rain (2 to locally 5 inches) is forecast for central and northeastern Texas, northern Louisiana, and southern Arkansas. Moderate to locally heavy totals (1 to 2.5 inches) are expected over much of Mississippi and Alabama, the central and southern Appalachians, the middle and upper Ohio Valley, Pennsylvania and adjacent New York and New Jersey, and a small portion of the central Great Lakes. Light to moderate totals (a few tenths to locally over an inch) is expected across the remainder of the eastern Contiguous United States, with the lowest amounts expected across coastal South Carolina, most of Georgia, and the northern and western sections of the Florida Peninsula. Several tenths to an inch are also forecast from the central and southern Plains westward through much of the Rockies, Nevada, and most of California, with locally higher amounts in some higher elevations of the Sierra Nevada and Great Basin. Little or none is forecast across the northern tier from the upper Mississippi Valley westward to the Pacific Coast, and in some climatologically drier parts of the Southwest. Warmer than normal weather is expected from the western Great Lakes through the northern Rockies and Intermountain West, with daily highs averaging 10 to 13 deg. F above normal in the northern Plains and adjacent areas. Meanwhile, cooler than normal conditions are anticipated from central and southern California through the Great Basin, southern Rockies, and central and western Texas. Highs are expected to average 8 to 10 deg. F below normal from western Texas through portions of the Great Basin and central through southern California.
The 6-10 day outlook valid May 6-10, 2025 favors subnormal precipitation across the Great Lakes, middle and upper Mississippi Valley, the Ohio Valley, the interior Southeast, the mid-Atlantic region, the lower Northeast, and western New England. In contrast, enhanced chances for wetter than normal conditions cover Florida and the immediate southern Atlantic Coast, the Gulf Coast, the lower Mississippi Valley, the central and southern Plains and Rockies, most of the Great Basin, the Southwest, southeastern portions of Alaska, and Hawaii. Higher than normal temperatures are favored across roughly the northern two-thirds of the Contiguous United States, with odds exceeding 70 percent in the northern Plains and adjacent Mississippi Valley. Enhanced chances for warmer than normal weather also extend across Hawaii, especially central and western parts of the island chain. Increased odds for subnormal temperatures cover Florida, central and western Texas, the central and southern Four Corners region, and southeastern Alaska. Chances for significantly cooler than normal conditions exceed 50 percent across central and southern New Mexico.
