Temperatures will soar today to near the century mark in the DC metro region with strong high pressure ridging extending into the area from the Northern Plains. A frontal system will pass through the area later in the day and it may usher in some wildfire smoke from Canada that can stick around for a couple of days and dim the skies at times. It stays rather hot during the next couple of days and then the pattern becomes much more unsettled this weekend with the chance of strong-to-severe thunderstorms and some heavy rainfall on both days.
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The overall weather pattern may be setting up for a severe weather and heavy rain threat in the Mid-Atlantic region during the first half of the upcoming weekend. The pattern will feature an intense ridge of high pressure centered over the Rocky Mountain States by the weekend with northwesterly flow over the Great Lakes/Northeast US. Often times, this kind of flow results in “lines” or “complexes” of thunderstorms dropping to the south and east from the Great Lakes to the northeastern states and that is on the table for Saturday. The potential exists for heavy rain/flash flooding as well as precipitable water in the atmosphere will climb to high levels. The weekend threat will be preceded by hot weather that can see temperatures surge to near the century mark on Wednesday anywhere along the DC-to-Philly-to-NYC corridor. One final note, wildfire smoke from Canada will likely drop south and east into the Mid-Atlantic region during the next couple of days and it certainly can dim the skies at times.
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High pressure in the upper part of the atmosphere will expand to the Mid-Atlantic region today from the Northern Plains leading to hotter weather around here for the next few days. In fact, temperatures are likely to reach the low-to-mid 90’s today, and then soar to near 100 degrees on Wednesday – likely the hottest day of the week. The next few days will generally be relatively quiet in terms of precipitation chances though an isolated thunderstorm or two will be possible. More widespread unsettled weather returns at the end of the week and during the early part of the weekend with the approach of a cold frontal system. This unfolding pattern for the early part of the weekend could result in a heavy rain/flash flooding threat for the Mid-Atlantic region and possible strong-to-severe thunderstorms.
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High pressure builds into the Mid-Atlantic region today and it should be in control for the next few days. Temperatures will be comfortably warm today and then rise to above-normal levels on Tuesday and then into the middle 90’s on Wednesday…likely the hottest day of the week. A dry and weak cold front will pass through the region late Wednesday and likely knock down temperatures a bit for the latter part of the week. Unsettled weather makes a return by the end of the week or the early part of the upcoming weekend and strong thunderstorms are likely going to come back to the table.
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A cold front will only slowly push through the region during the next 24 hours or so leading to more unsettled weather featuring scattered showers and thunderstorms. Drier air should take over later in the weekend and the early part of next should be mainly rain-free as high pressure intensifies over the Northern Plains. By the middle of next week, hot weather conditions will return to the Mid-Atlantic region with 90+ degrees back on the table for afternoon highs.
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A cold front will approach the area later today and push through from Friday into early Saturday. As a result, showers and thunderstorms are likely; especially, during the afternoon and evening hours. Some of the rain can be heavy today and localized flash flooding is a possibility. While a shower or thunderstorm cannot be ruled out this weekend, it’ll tend to become drier in the Mid-Atlantic region following the passage of the frontal system.
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High pressure builds into the Mid-Atlantic region today leading to a rain-free day, but unsettled weather returns for the late week. A cold front will approach the area on Thursday and push through from Friday into early Saturday. As a result, the chance of showers and thunderstorms returns later tomorrow and will continue on Friday. No extreme heat is in sight for the Mid-Atlantic region such as what we experienced last week and during the holiday weekend.
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Low pressure will slowly pull off to the north and east today, but the atmosphere will remain unstable enough for scattered showers and thunderstorms...greatest chance of which will come during the afternoon and early evening hours. High pressure builds into the area on Wednesday likely leading to a rain-free day, but the chance of showers and thunderstorms returns later Thursday and Friday as a new frontal system moves in from the west.
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There will be additional showers and thunderstorms today in the Mid-Atlantic region and some of the rain can be heavy at times…watch out for localized flooding conditions. While humidity levels will be high during the next couple of days, temperatures will be more manageable with afternoon highs generally in the upper 70’s across the metro region. High pressure builds into the area at mid-week and then the chance of showers and storms will return again for Thursday and Friday.
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The turn of the calendar on Wednesday from June to July will come with the arrival of the hottest weather of the year so far and it’ll persist into the upcoming holiday weekend. In fact, temperatures can reach or even slightly surpass the 100 degree mark for afternoon highs during the second half of the week and humidity will be at very uncomfortable levels as well. Intense upper-level ridging of high pressure will be a key player during this upcoming heat wave as it becomes centered over the northeastern states for a several day period and influences the entire DC-to-Boston I-95 corridor.
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