A Gulf of Mexico low pressure system will be aided by moisture from the Pacific Ocean (remnants of Hurricane Lidia) and will spread some heavy rainfall to the southern sections of Mississippi and Alabama as it treks in an east-to-northeast direction. While the heaviest rainfall looks like it will stay to the south of here, showers are on the table for northern Alabama.
Read More
An upper-level trough of low pressure will deepen as it treks across the northern states in coming days at the same time a tropical low pressure system forms over the western Gulf of Mexico. This Gulf low will be aided by moisture from the Pacific Ocean (remnants of Hurricane Lidia) and will spread some heavy rainfall to the southern sections of Mississippi and Alabama as it treks in an east-to-northeast direction. While the heaviest rainfall looks like it will stay to the south of here, showers are on the table for northern Alabama later in the week.
Read More
Two big weather stories over the next several days will include a Pacific Ocean-to-Gulf of Mexico “tropical hand-off” and yet another weekend rain event is in the cards for the Mid-Atlantic region. Hurricane Lidia will head into western Mexico later today and some of its tropical moisture will make it across Mexico at mid-week giving a boost to a tropical wave sitting over the southwestern Gulf of Mexico. Surface low pressure with a Pacific Ocean-to-Gulf of Mexico tropical connection will form by later tomorrow over the western Gulf and then spread some heavy rainfall across the northern Gulf/Southeast US as it takes a path to the east-to-northeast.
Meanwhile, a deepening upper-level low pressure system will cross the nation from west-to-east in coming days and set off the development of surface low pressure over the Ohio valley by week’s end. This primary or initial low will then give way to a secondary low pressure system likely to form early this weekend along the Mid-Atlantic coastline. The result will continue a recent trend in the Mid-Atlantic region with some weekend rain and very cool conditions featuring a persistent onshore flow of air.
Read More
A weak disturbance can produce some clouds in the area today, but for the most part, it looks like a dry and warm across the northern part of Alabama. Low pressure will form over the western Gulf of Mexico during the next 48 hours and we’ll have to keep an eye on its precipitation field as it pushes to the northeast. Currently, it appears as though the main area of rainfall will stay to the south of here, but showers are still a threat from tomorrow night into Thursday.
Read More
High pressure near the Gulf of Mexico remains in control for the next couple of days in the Tennessee Valley generating comfortable daytime temperatures and plenty of sunshine. A weak cool front will approach the area later tomorrow, but it lacks moisture and will be relatively dry.
Read More
A strong cold front arrives here later today and its passage will result in a much cooler weekend in the Tennessee Valley. The influx of the coolest air mass so far this fall season will take place tonight as northwesterly winds pick up in intensity and temperatures by early Saturday will be in the mid-to-upper 40’s. It stays breezy and cool on Saturday and then temperatures will drop to near the 40 degree mark by early Sunday morning. A gradual warmup early next week will bring temperatures back to near 80 degrees for afternoon highs at mid-week.
Read More
Tropical systems in both the Atlantic and Pacific Oceans may impact the weather across the US in coming days in somewhat unusual manners. Tropical Storm Philippe has been meandering over the southwestern Atlantic Ocean recently and it will soon accelerate to the north and impact Maine/Nova Scotia with rain and wind later this weekend. After that, the remnants of TS Philippe will get “absorbed” into an incoming upper-level trough over the southeastern part of Canada. This influx of tropical moisture into the upper-level trough will act to energize the system and it will become a big contributor to a temperature pattern change in the eastern states with much cooler weather from this weekend and well into next week. Meanwhile, the eastern Pacific Ocean is now featuring multiple tropical systems and one of these is likely hit the west coast of Mexico by the middle of next week. After that, this tropical system that originated in the Pacific Ocean is likely to cross over Mexico and help to spawn tropical activity over the Gulf of Mexico which potentially can result in rain across the southeastern states.
Read More
A strong cold front arrives at the end of the work week and it’ll result in a much cooler weekend and early part of next week. Temperatures will climb to the lower 80’s today, but may be confined to the middle 60’s for highs during the upcoming weekend following the frontal passage.
Read More
Temperatures are some 10+ degrees above-normal today in the Mid-Atlantic region, but big changes are on the way this weekend and the change to noticeably cooler conditions may not be just an “in-and-out” affair. Strong upper-level ridging across the eastern US and Canada will give way to an upper-level trough of low pressure this weekend that will tend to hang around through much of October ensuring additional cold air outbreaks. This initial blast of much cooler air into the east will follow an early weekend strong cold frontal passage and Sunday promises to be the coolest day so far this fall season in the DC-to-Philly-to-NYC corridor. In addition to the cool down, winds will become an important factor by Sunday as the overall pressure gradient tightens across the northeastern states as Tropical Storm Philippe merges with the initial incoming upper-level trough system.
Read More
High pressure remains in control for the next couple of days in the Tennessee Valley generating above-normal temperatures and plenty of sunshine. A strong cold front arrives at the end of the week and it’ll result in a much cooler weekend and early part of next week. Temperatures will climb to the mid-80’s today, but may be confined to near 65 degrees for highs by the time we get to the upcoming weekend.
Read More