High heat and humidity will be the rule for the next few days in the Mid-Atlantic region with very strong high pressure ridging in control. Temperatures will climb right through the 90’s on Monday and Tuesday and likely reach the 100-degree mark in many locations. The strong ridge tends to weaken later in the weak - beginning on its northern perimeter - and this should lead to scattered afternoon and evening showers and thunderstorms around here beginning at mid-week and that threat of PM rain likely lasts through the weekend. There will be a reduction in temperatures later in the week as the ridge breaks down such that we’ll likely be back to near the 90-degree mark for highs by week’s end.
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Powerful thunderstorms barreled through the DC-to-Philly-to-NYC corridor late yesterday causing widespread damaging wind reports and power outages (e.g., 250,000 customers without power in SE PA). The passage of the surface cold front has lead the way to noticeably lower humidity today in the Mid-Atlantic region and there will be plenty of sunshine to go along with warm conditions.
The moderate humidity of today will give way to an extended stretch of high heat and humidity from later this weekend into at least the middle of next week. A very strong ridge of high pressure that has been stuck out west in recent days will move into the eastern states by later this weekend. This repositioning of the strong upper-level ridge will lead to high temperatures well up in the 90’s for multiple days all along the DC-to-Philly-to-NYC corridor...perhaps some spots can reach the 100-degree mark during this stretch.
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Many ingredients are coming together to raise the chance of severe weather later this afternoon and evening in the Mid-Atlantic region. A strong surface cold front, high heat and humidity, and an impressive upper-level disturbance will help to destabilize the atmosphere this afternoon and there are likely to be strong-to-severe thunderstorms impacting the I-95 corridor somewhere between 2pm and 8pm. The cold front clears the coast by late tonight and Friday will turn out to be a less humid day featuring plenty of sunshine and warm conditions.
The moderate humidity expected on Friday will give way to an extended stretch of high heat and humidity in the Mid-Atlantic region from later this weekend into at least the middle of next week. A very strong ridge of high pressure will build into the eastern states, and this will lead to high temperatures well up in the 90’s for multiple days all along the DC-to-Philly-to-NYC corridor.
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The atmosphere will become quite unstable later today with the approach of a surface cold frontal system combined with a disturbance in the upper part of the atmosphere. As a result, the chance for afternoon and evening showers and thunderstorms will be high and any thunderstorm that forms can be severe with heavy rain and damaging wind gusts. There is also that chance in this expected thunderstorm activity for large hail and isolated tornadoes cannot be ruled out. Temperatures today will climb to uncomfortably warm levels near 90 degrees and the humidity will be a very noticeable factor as well.
After a sunny and warm day to end the work week, very strong high pressure ridging in the upper part of the atmosphere will push eastward this weekend. This system will end up directly overhead in the Mid-Atlantic/Northeast US by the early part of next week and likely stay put until at least the middle of next week. As a result, high heat and humidity is on the way for an extended period of time from later this weekend into at least the middle of next week.
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It has become uncomfortably humid and warm today across much of the Mid-Atlantic region following the progression of a warm frontal system that is pushing slowly to the north. This change in atmospheric conditions comes following a cool stretch of weather that featured high temperatures on Sunday, Monday, and Tuesday that were well below-normal for the middle of June. The atmosphere will quickly destabilize this afternoon and there are likely to be downpours and strong-to-severe thunderstorms impacting the I-95 corridor somewhere between 1pm and 8pm.
A surface cold frontal system will approach the Mid-Atlantic region from the northwest on Thursday, and this will combine with an upper-air disturbance to bring another threat of severe weather threat to the DC-to-Philly-to-NYC corridor. The likely timetable for severe thunderstorm activity on Thursday will again be 1pm-8pm, and there can be damaging wind gusts, hail, and even isolated tornadoes in any spot along the I-95 corridor. The cold front clears the coast by later tomorrow night and Friday will turn out to be a rather decent day featuring warm and dry conditions to end the work week.
Looking ahead, a very strong ridge of high pressure will build into the Mid-Atlantic region by the early part of next week and this will lead to high heat and humidity in the DC-to-Philly-to-NYC corridor from later this weekend into at least the middle of next week. After a very warm day on Saturday, temperatures are likely to soar into the 90’s on Sunday and then the first half of next week will feature high heat and humidity and 100 degrees will be a possibility in the DC-to-Philly-to-NYC corridor.
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After a cool start to the week, it’ll turn much warmer for today and Thursday in the Mid-Atlantic region and humidity will be a noticeable factor as well. The warm-up comes ahead of a strong frontal system which can produce strong-to-severe thunderstorms around here this afternoon and then additional strong-to-severe thunderstorms are likely later tomorrow.
After a sunny and warm day to end the work week, very strong high pressure ridging in the upper part of the atmosphere will push eastward this weekend. This system will end up directly overhead in the Mid-Atlantic/Northeast US by the early part of next week and likely stay put until at least the middle of next week. As a result, high heat and humidity is on the way for the northeastern states in the period from later this weekend into the middle of next week and 100-degrees is on the table.
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There is a lot going on in the world of weather across the nation with severe weather threats each of the next few days and scorching heat is on the horizon for the Great Lakes, Mid-Atlantic, and Northeast US. In the near-term, severe weather will be a major concern today in the nation’s mid-section (Kansas, Oklahoma, Nebraska) and then that threat zone will shift eastward on Wednesday to the Mississippi and Ohio Valleys, and then to the eastern states on Thursday.
In terms of temperatures, there has been unusually cool weather across the northeastern part of the nation during the past few days and it continues today…this will be just a fond memory in a week’s time as sweltering heat is on the way. Actually, temperatures will surge to much warmer levels on Wednesday and Thursday, but the intense and more sustained heat is coming for the period from later this weekend into at least the middle of next week and 100-degree highs are possible all along the DC-to-Boston corridor.
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After a cool start to the week, it’ll turn warmer today and then uncomfortably warm and humid for Wednesday and Thursday with afternoon highs in the 90’s on the table each day. The warm-up at mid-week comes ahead of a strong cold front and both Wednesday and Thursday can feature strong-to-severe thunderstorms during the PM hours.
After backing off a tad on Friday, temperatures will surge around here from later this weekend through the middle of next week with a run to 100 degrees possible in the big cities all along the DC-to-Boston corridor. Very strong upper-level ridging which has been largely confined to the western states in recent days will push to a position centered over the eastern states by early next week and temperatures will respond in a dramatic fashion.
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Father’s Day turned out to be very cool across the Mid-Atlantic region and Northeast US with some spots nearly 20 degrees below normal for the middle of June and today will be much the same. Temperatures will rebound dramatically by the middle of this week with highs in the 90’s on the table by Thursday afternoon along the DC-to-Boston corridor. The warm-up at mid-week comes ahead of a strong cold front which can produce strong-to-severe thunderstorms by later Thursday or Thursday night.
After backing off slightly for the end of the week and beginning of the weekend, temperatures are likely to surge in the DC-to-Boston corridor during the early and middle parts of next week with a run to 100 degrees possible in the big cities along Route I-95. Very strong upper-level ridging which has been largely confined to the western states in recent days will push to a position centered over the eastern states early next week and temperatures will respond in a dramatic fashion.
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A stationary frontal system will keep it unsettled around here for another couple of days with a daily chance of showers though most of the time will be rain-free. The front finally pulls north as a warm front by mid-week and temperatures will respond by climbing well up into the 80’s on Wednesday. Another cold front heads this way on Thursday and it can produce some strong-to-severe thunderstorm activity late in the day and on Thursday night. Looking ahead, a surge of heat is possible for the DC-to-Boston corridor early next week that could result in a run to 100 degrees in the big cities along Roue I-95.
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