The Atlantic Basin remains quite active as we push towards the end of August with three systems on the tropical scene, but the one over the Caribbean Sea is of most concern at this time. There are strong signs that this system now officially known as “Invest 99L” can reach hurricane status in coming days and perhaps threaten the Texas and/or Louisiana coastline by the early part of next week.
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High pressure will remain in control over the next few days resulting in plenty of sunshine around here to go along with hot and humid conditions. A cold front approaches the region late Friday and it is likely to stall out in the Mid-Atlantic region this weekend. Its proximity over the weekend could bring us a bit of relief in the temperature department. Temperatures are likely to reach into the low-to-middle 90’s during the next few days and then perhaps be confined to the upper 80’s for afternoon highs this weekend. On the tropical scene, there are signs for a possible hurricane in the Texas/Louisiana coastal region by Monday or so...something to closely monitor next few days.
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The remains of “Henri” will push away from the northeastern part of the country this morning and the next few days will feature hot and humid conditions in the DC metro region with high temperatures generally in the 90-95 degree range. By the end of the week, a cold front will close in from the northwest and its Friday night passage is likely to bring us a bit of relief for the upcoming weekend.
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The remains of Tropical Storm Henri will impact the Northeast US for another 24 hours or so with plenty of clouds, moisture and occasional showers and thunderstorms. This system will push off the coast tomorrow morning and the weather will turn hotter in the Mid-Atlantic region with high temperatures at or slightly above the 90 degree mark for much of the second half of the week.
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A broad upper-level trough remains in place overhead and is producing enough instability for numerous showers and thunderstorms in the DC metro region. Some of the rain will be heavy at times this morning and mid-day...watch out for localized flooding conditions. Meanwhile, the storm track of Tropical Storm Henri will become increasingly influenced this weekend by building high pressure over southeastern Canada and this system is likely to turn to the north and intensify into a hurricane – potentially resulting in a direct impact on Long Island or New England by late Sunday.
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Tropical Storm Henri remains a threat to Long Island and New England where it could make a direct impact as a strong tropical storm or weak hurricane late in the upcoming weekend. This system will become influenced by expanding high pressure over southeastern Canada and a developing upper-level trough over the Appalachian Mountains causing it to make a sharp right turn in the near-term. In addition, more favorable environmental conditions will allow for intensification of Henri this weekend from the current tropical storm status to hurricane levels and it could very well be closing in on Long Island and southern New England as a strong tropical storm or weak hurricane by late in the day on Sunday. All residents from the northern Mid-Atlantic to northern New England should closely monitor the movement of Tropical Storm Henri.
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The remnants of Tropical Storm “Fred” have moved to the north of here into upstate New York and the chance for rain here today will diminish; but not disappear completely. The atmosphere will remain unstable enough for isolated-to-scattered showers and thunderstorms later today as well as tonight and on Friday. Meanwhile, Tropical Storm “Henri” continues to churn slowly out over the western Atlantic Ocean and is on the doorstep of attaining hurricane status (max sustained winds now at 70 mph). The unfolding upper air pattern may allow for movement of Henri towards New England later this weekend and all residents along the Northeast US coastline should monitor this system in coming days.
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The remnants of Tropical Storm “Fred” continue to push to the northeast today and are now centered over the southwestern part of Pennsylvania. Its tropical moisture field has spread throughout the Mid-Atlantic region and is enhancing the chance for downpours later today and tonight and also the chance for severe thunderstorm activity which may include isolated tornadoes.
Meanwhile, Tropical Storm “Henri” continues to spin out over the Atlantic Ocean and is likely to intensify into hurricane status in the near-term. There are some “red flags” in the developing weather pattern that suggest “Henri” should be very closely monitored in coming days; especially, for coastal residents of the Northeast US.
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Tropical moisture associated with the remnants of Fred has pushed northward into the Mid-Atlantic region and will enhance the chance of showers and thunderstorms around here. The heaviest rainfall today and tonight will take place to the north and west of the District where enough rain can fall to result in localized flash flooding conditions. The remnants of Fred push to our north by Thursday morning and then attention shifts to Henri out over the Atlantic. This system is likely to reach hurricane in the near-term and may come "too-close-for-comfort" to the east coast late in the week or this weekend. As a result, Henri needs to be closely monitored by all residents along the east coast; especially, those up in New England.
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Tropical Storm Fred came ashore late yesterday in western Florida and the remains are now pushing north-northeastward across the northwestern part of Georgia. Despite its recent weakening, this system continues to produce some significant rainfall and strong thunderstorm activity in the Southeast US and Tennessee Valley and it will likely do so tomorrow and tomorrow night in the Mid-Atlantic region. Meanwhile, Tropical Storm Grace is moving westward through the Caribbean Sea and is likely to reach the Yucatan Peninsula region of Mexico by Thursday – probably as a hurricane. Finally, Tropical Storm Henri has formed over the Atlantic and is currently meandering not too far from the island of Bermuda. This system is quite worrisome in that it may come awfully close to the US east coast before hopefully turning away…needs to be very closely monitored.
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