Posts

Miguel Pierre

5.16 Midday Zones Update: Low 90s Possible by Thursday, More High Latitude Blocking

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Happy Tuesday! Get ready for more summery weather over next several days! For today, sunshine will continue into the early afternoon hours. Then more mid-high clouds may filter sunshine this afternoon, as some convective debris from the Great Lakes moves southeast into region. But there should be enough sunshine with west-southwest winds to help temperatures rise into upper 70s and 80 over most of the region. Clear to partly cloudy skies are expected tonight. Low temperatures overnight will be in the upper 50s to lower 60s, over most of region with a light southwest flow.

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Miguel Pierre

5.15 Midday Zones Update: Summer Warmth Midweek, Cooler Weekend

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Happy Monday! Hope you had a lovely weekend! A coastal storm that impacted the region over the weekend, is still east of New England today. Clouds from this low are moving through parts of the region. As the storm slowly moves out further into the Atlantic, clouds will gradually clear for more sunshine. High temperatures this afternoon will be in mid-upper 60s. Overall it will a pretty decent day. But a tight pressure gradient behind this low will cause northwest winds to gust over 30-40mph, through this afternoon.

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Miguel Pierre

Weekend Overview: Excessive Heat & Scattered T-Storms for Saturday and Sunday

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Oppressive heat and humidity will continue through Sunday with a strong upper-level ridge over region.  Temperatures are already approaching the upper 80s or lower 90s late this morning. High temperatures will be middle to upper 90s both Saturday and Sunday, over much of the region. Heat index values will be between 105F to 110F this afternoon. Therefore the National Weather Service now has excessive heat warnings for most of the region through Sunday. Take precautions to stay well-hydrated, while outdoors this weekend.

Some scattered showers and thunderstorms are possible during the afternoon and evening hours today and Sunday. A lack of deep layer shear and large scale forcing will likely inhibit more organized or widespread severe weather threats in the region. But with extreme levels of instability and moisture in the atmosphere, a few thunderstorms could become strong or severe with gusty winds, torrential downpours and frequent cloud to ground lightning. Some other highlights.

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John Homenuk

Oppressive combination of heat and humidity this weekend

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We have all experienced high temperatures before. In fact, most of us sat underneath a large ridge of high pressure earlier this summer which brought us temperatures in the upper 90’s. This weekend, however, temperatures will again surge into the upper 90’s — and combine with dew points in the middle to upper 70’s to bring Heat Index values near 110 F for periods of time each afternoon. This air, not surprisingly, will feel overly oppressive.

The culprit? The positioning of the aforementioned ridge in the mid levels of the atmosphere. Earlier in July, our area experienced a prolonged period of heat. But the ridge axis was centered in the Plains States. A clockwise flow around that ridge axis brought the heat into our area from the Northwest, meaning dew points were lower and the heat was of the “drier” variety. This time, the ridge is centered off the Southeast US Coast, with the clockwise flow around the high pressure bringing the heat into our area from the southwest.

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