In the West, hot, mostly dry weather prevails, except for cool conditions along the Pacific Coast. Northwestern small grain harvesting and other fieldwork activities are advancing with few delays.
On the Plains, hot, dry weather is promoting fieldwork, including winter wheat planting preparations, but maintaining or increasing stress on rangeland and pastures. For the third consecutive day, high temperature will top 100°F as far north as the northern Plains.
In the Corn Belt, mild weather prevails across eastern areas, but hot weather continues to expand across the upper Midwest. Dry weather and near- to above-normal temperatures are hastening summer crop maturation.
In the South, Hurricane Isaac moved inland earlier today in southeastern Louisiana with maximum sustained winds near 80 mph. Isaac continues to batter the central Gulf Coast region with high winds, torrential rainfall, and a coastal storm surge. At 9 a.m. EDT, Isaac was centered 40 miles southwest of New Orleans, Louisiana, moving toward the northwest at 6 mph. Sustained winds remain near 80 mph.
Outlook: Isaac will continue to slowly move farther inland, with the remnant circulation expected to reach Missouri by week’s end before turning northeastward across the eastern Corn Belt. Coastal effects, such as storm surge, damaging winds, and salt-water intrusion, will gradually subside, but inland agricultural impacts could include power outages, fresh-water flooding, and degradation in quality of unharvested summer crops such as cotton, rice, and soybeans. Along and near Isaac’s path through the central Gulf Coast States, rainfall could reach 7 to 14 inches, with isolated amounts near 20 inches. Storm totals in the middle Mississippi Valley and the eastern Corn Belt could reach 4 to 8 inches. Little or no rain will occur through week’s end across the remainder of the U.S., except for showers in the Intermountain West. Much of the nation will continue to experience late-season warmth, especially across the northern U.S. The NWS 6- to 10-day outlook for September 3-7 calls for above-normal temperatures nationwide, except for cooler-than-normal conditions along the Pacific Coast. Meanwhile, near- to below-normal rainfall across the southern and western U.S. will contrast with wetter-than-normal weather in the central Plains, Midwest, Northeast, and interior Southeast.