Weather Roundup: National Forecast for Aug. 28
The big story of the day will be a low pressure system and a trailing cold front pushing the mid-section of the country. The cold front — which won’t be all that cold — is likely to bring some much needed relief to parts of the Upper Midwest and Central Plains. These areas had been sweltering under some serious heat in the last few days, especially parts of Missouri and Illinois.
The cold front associated with the low is also likely to fire off a few showers and thunderstorms in parts of the Texas Panhandle and western Oklahoma. The little tropical wave situated off the coast of Texas will also bring showers to places like Brownsville, Galveston, South Padre Island and Houston.
A cold front made its way through the region on Wednesday, leaving cooler and drier air in its wake. Expect a beautiful Thursday and Friday, with high temperatures generally in the upper 70s to ,perhaps, the low 80s. But, conditions will deteriorate a bit heading into the weekend, with more showers and storms working their way back to the redion by Sunday.
The region’s next system doesn’t arrive until Saturday, when storms spread in from west to east. Temperatures in the 80s will be the rule of thumb across the I-95 corridor and eastward. While muggier conditions and temperatures in the 90s will be most common west of the Appalachians.
A spell of unusually nice weather in the Southeast is slowly coming to a close. A surge of moisture from the Gulf of Mexico will lead to an increase in showers and storms as the week wears on. And return flow from the south will also mean more heat and humidity in the coming days as well. Labor Day weekend looks stormy, with afternoon showers and storms and temperatures in the 90s.
Expect a muggy morning for parts of Oklahoma, Texas, Arkansas and Louisiana as dew points are likely to start out in the upper 60s and lower 70s. A few isolated showers and thunderstorms are possible as well, especially along the Gulf Coast and the Panhandles of Texas and Oklahoma. Additional afternoon rain and thunderstorms are possible in the aforementioned areas as well. Elsewhere, over most of Texas, Oklahoma and Arkansas the story will be the heat and humidity. Temperatures will range from 90 on the coast, to near 100 in central Texas. Low to mid-90s will be the norm in Oklahoma, Arkansas and Louisiana.
An area of low pressure and its associated fronts will keep the weather active throughout much of the Central Plains region today. Scattered showers and storms are likely for Nebraska, Kansas, and Iowa — with some storms possibly on the strong to severe side. Expect more isolated-type storm activity over Missouri. It’ll be a mild morning with lows in the upper 60s to lower 70s regionally. Highs will be hot, in the 90s for souther areas of the Central Plains, while northern locations can expect cooler highs — in the upper 70s to lower 80s.
A low pressure system moving in from the southwest will gradually spread showers and thunderstorms across the region into Thursday and Friday. Heavy rainfall will last into the holiday weekend. On the cool side of this system, overnight lows will drop into the 40s and 50s in Minnesota, Michigan, and Wisconsin. Expect lows in the 60s for Illinois, Indiana, and Ohio. Cloud cover and rain will keep high temperatures below normal for this time of year, with the high heat finally letting up in southern Illinois.
Rain will continue in South Dakota and Wyoming into early Thursday. After that, most of the High Plains will dry out into Thursday afternoon and Friday morning. A cold front dipping south on Friday will bring back a chance of scattered storms. Lows will drop into the 40s and 50s in the west overnight. The Dakotas will see lows in the 50s and 60s. High temperatures on Thursday will reach the 70s and 80s.
A weak ridge of high pressure will start to build over Utah and Arizona today. That said, some lingering moisture coupled with an upper level system may help spark up a few storms this afternoon and evening over Colorado and New Mexico. It’ll be a chilly morning in the Colorado Rockies with morning lows in the upper 30s to lower 40s, while Southern Arizona will enjoy a mild start to the day in the 70s. Highs will range from the 70s with a chance of storms in Denver to the low 100s and sunshine in Phoenix.
High surf and coastal flooding potential will continue through Friday along the Los Angeles coast as Tropical Storm Marie moves West. Otherwise, clear and dry conditions will continue in California and Nevada through the end of the work week. Moring lows will drop into the 50s and 60s along the coast. High temperatures should be at or slightly above normal for this time of year.
The ridge of high pressure that dominated the weather across the Northwest over the last few days will shift east allowing for moisture to come off the Pacific. Morning fog and drizzle are possible along the coastlines of Washington and Oregon with low clouds likely for the first half of the day for the inland valleys between the coast range and Cascades. Expect it to remain sunny and dry east of the Cascades. Morning lows will be in the upper 50s to low 60s with afternoon highs in the upper 60s to low 70s west of the Cascades and upper 80s lower 90s east of the mountians.