The overall weather pattern will be rather quiet in coming days with moderately warm and generally rain-free conditions across the Tennessee Valley. As tropical depression (Debby) pulls away and into the Mid-Atlantic region, a northerly flow in our area will promote mostly sunny skies today and moderately warm temperatures. The weekend should feature highs confined to the 80’s and it stays rain-free with sunny skies on both days.
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A tropical depression will pass to the west of here around mid-day bringing additional heavy showers, embedded thunderstorms, continuing flooding potential, and strong winds through the evening hours…isolated tornadoes are also on the table. Scattered power outages are possible given the combination of saturated grounds and wind gusts potentially up to 45 mph or so. A band of very heavy rain last night pushed from northern Delaware through much of central Chester County and produced 5+ inches of rain in some spots and there was at least one confirmed tornado. The tropical system will continue its acceleration to the north-northeast that began late yesterday and, as such, will clear out of here by later tonight leading to big improvement on Saturday and also nice weather on Sunday. In fact, the nice weather that begins here early this weekend should continue right into the middle part of next week.
On another note, the annual Perseid meteor shower will peak late this Sunday night and early Monday morning and weather conditions should be quite favorable for viewing. For more details on the meteor shower, check out the blog here.
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A tropical depression will pass to the west of here by mid-day bringing additional heavy showers, embedded thunderstorms, more flooding potential, and strong winds through the evening hours…isolated tornadoes are also on the table. Scattered power outages are possible given the combination of saturated grounds and wind gusts potentially up to 45 mph or so. The heaviest rain last night set up across the western (Virginia) suburbs of the metro region where as much as 3-5 inches of rain was reported in some spots and the highest flooding potential today will be much the same region. The tropical system will continue its acceleration to the north-northeast that began late yesterday and, as such, will clear out of here by late tonight leading to big improvement on Saturday and also nice weather on Sunday. In fact, the nice weather that begins here early this weekend should continue right into the middle part of next week.
On another note, the annual Perseid meteor shower will peak late this Sunday night and early Monday morning and weather conditions should be quite favorable for viewing. For more details on the meteor shower, check out the blog here.
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A tropical depression will pass well to the west of here around mid-day bringing additional heavy showers, embedded thunderstorms, more flooding potential, and strong winds through the evening hours…isolated tornadoes are also on the table. Scattered power outages are possible given the combination of saturated grounds and wind gusts potentially up to 45 mph or so. The tropical system will continue its acceleration to the north-northeast that began late yesterday and, as such, will clear out of here by late tonight leading to big improvement on Saturday and also nice weather on Sunday. In fact, the nice weather that begins here early this weekend should continue right into the middle part of next week.
On another note, the annual Perseid meteor shower will peak late this Sunday night and early Monday morning and weather conditions should be quite favorable for viewing. For more details on the meteor shower, check out the blog here.
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Tropical Storm Debby made a second landfall earlier today about 25 miles to the northeast of Charleston, South Carolina and has begun the normal weakening phase as it pushes farther inland. Despite the weakening, the remnants of Tropical Storm Debby will continue to pound away today at the Carolinas with additional heavy rainfall as copious amounts of tropical moisture still feed into the system from the southwestern Atlantic. Some spots in South Carolina can end up with 25 inches of rain when all is said and done and up to 15 inches in likely in portions of North Carolina.
In the Mid-Atlantic region, outer bands have already produced occasional showers and the main impact will come from late today into Friday evening as the tropical depression passes over the front range of the Appalachians. The impact in the I-95 corridor will include occasional heavy downpours, embedded thunderstorms, strong winds, and isolated tornadoes are even on the table. Scattered power outages are also on the table given the combination of saturated grounds and wind gusts potentially up to 45 mph or so. The heaviest rainfall during this upcoming event will likely come along the front range of the Appalachians (e.g., eastern West Virginia, western Virginia, central Pennsylvania) where southeasterly winds will be “lifted” by the increasing altitude.
Looking ahead, the “soon-to-come” acceleration of the tropical system will allow for a nice weekend in the Mid-Atlantic region and the overall weather pattern looks quite nice from Saturday through the middle of next week all across the Great Lakes, Midwest, Mid-Atlantic, and Northeast US (and it should be favorable for the Perseid meteor shower). One final note, there are signs that there may be another tropical threat to deal with in the eastern US by around the middle of the month.
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The annual Perseid meteor shower began in mid-July and will continue until late August, and the peak viewing time will be during the pre-dawn hours of Monday, August 12th. This year’s peak viewing will come at a time when the moon is 50% illuminated (first quarter phase) which is halfway between the new moon and full moon. The moon will set around midnight suggesting that the best viewing conditions will indeed be in the pre-dawn hours when the sky should be at its darkest. Of course, success for viewing will largely depend on the overall lighting in given viewing area and on overall sky conditions and the weather is looking quite favorable in the Mid-Atlantic region. The Perseid meteor shower comes every August as the Earth passes through a cloud of dust that comes from Comet Swift-Tuttle as it approaches the sun.
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The weather remains quite warm today, but there will be an overall downward trend in temperatures going into the upcoming weekend. As far as precipitation is concerned, it appears to be mainly – if not completely – rain-free over the next several days with high pressure generally in control across the Tennessee Valley.
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After spending yesterday out over the open waters of the southwestern Atlantic, Tropical Storm Debby has made a second landfall early today just to the northeast of Charleston, South Carolina and it will begin to accelerate to the north later tonight and pass to the west of the Mid-Atlantic’s I-95 corridor on Friday. Outer bands associated with the tropical storm have already reached our region and the main impact here will occur from tonight through Friday evening. There will be occasional heavy downpours, embedded strong thunderstorms, gusty winds, and even isolated tornadoes during the tropical storm’s main impact time period. As the remnants of the tropical system accelerate to the northeast, skies will clear here by early Saturday and the weekend should turn out to be quite nice. In fact, the period from Saturday through the middle of next week looks quite nice throughout the northeastern quadrant of the nation with comfortable temperatures and humidity levels.
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After spending yesterday out over the open waters of the southwestern Atlantic, Tropical Storm Debby has made a second landfall early today just to the northeast of Charleston, South Carolina and it will begin to accelerate to the north later tonight and pass to the west of the Mid-Atlantic’s I-95 corridor on Friday. Outer bands associated with the tropical storm have already reached our region and the main impact here will occur from tonight through Friday evening. There will be occasional heavy downpours, embedded strong thunderstorms, gusty winds, and even isolated tornadoes during the tropical storm’s main impact time period. As the remnants of the tropical system accelerate to the northeast, skies will clear here by early Saturday and the weekend should turn out to be quite nice. In fact, the period from Saturday through the middle of next week looks quite nice throughout the northeastern quadrant of the nation with comfortable temperatures and humidity levels.
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A big time cool down today with temperatures noticeably cooler than Wednesday and confined to the 60’s for afternoon highs. It remains on the cool side to end the work week on Friday and there will be plenty of moisture around for the next couple of days to give us a chance of showers and thunderstorms. A warm-up begins on Saturday and continues into early next week and this will result in high temperatures by Tuesday afternoon quite close to the 90 degree mark once again.
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