A new week is upon us as we track numerous weather events that will take place across the US. This includes the record-breaking heat impacting the Northeast, the first snow of the season in the northern Rocky Mountains, severe weather in the northern Plains and upper Midwest, possible tropical activity for the Labor Day Weekend, and storms headed to the Northeast late-week.

Record-Breaking Heat:

Summer may be winding down as we near the unofficial end to the season on Labor Day Weekend, but Mother Nature has different plans up her sleeve in the form of some potentially record breaking heat midweek in the Northeast. Major cities like New York, Boston, Philadelphia, and Washington, DC are all at risk for meeting heat wave criteria as high temperatures rise into the mid to perhaps upper 90s Tuesday and Wednesday.

Read the story here.



Summer Snow in the Rockies:

The first sign of winter has arrived across portions of the northern Rocky Mountains in western Montana and northwestern Wyoming. This snow will take place between Monday evening into the late night, and snowfall totals will vary depending on elevation. Many areas that are under a Winter Weather Advisory can expect 4 to 8 inches of measurable snowfall — mainly away from populated roadways. There may even be localized amounts of up to 10 inches over the highest peaks in Glacier County near the Canadian border.

You may be asking: is snow unusual during this time of the year in this part of the country? The simple answer is yes — the average first snow doesn’t happen until September in western Montana and October for the remainder of the Rocky Mountains. This sort of event has happened in the past, however. It just takes a cooler than normal air mass to move in from Canada — typically behind a strong cold front — combined with moisture to bring snow this time of the year.



Northern Tier Derecho:

Severe weather will threaten portions of the northern Plains and the upper Midwest this Monday into the overnight time period. A violent Mesoscale Convective System, or MCS, will likely develop late in the day over Minnesota, tracking into Wisconsin and Michigan beginning this evening. This MCS will have to be closely monitered because it may even produce a derecho, which is a long-lived, widespread, damaging wind event. According to the Storm Prediction Center, “An active severe weather period may unfold during the late afternoon and evening, with potential for a derecho and/or significant severe.” More spotty strong to severe thunderstorms will also be possible in the northern Plains, but the best risk for a few tornadoes, damaging winds, and large hail will be over the upper Midwest.

Look for an article on this story midday Monday.

Holiday Tropical Activity:

We are nearing the most active time of the year for tropical activity in the Atlantic basin. Following an active start, Accumulated Cyclone Energy, or ACE, has since fallen below average year-to-date as a result of a lack of tropical cyclone development. That may change later this week, however, as a couple more robust tropical waves move off the western African coast and track over the Main Development Region (MDR) of the tropical Atlantic Ocean. The second wave looks to have a greater chance of tropical development. If that were to happen, formation may occur as early as mid-next week near the Cape Verde islands.

There is also an area of disturbed weather that some of the model guidance suggests spins up into at least a tropical depression around the Labor Day Weekend. This one is definitely worth watching given its location: the southwestern Atlantic Ocean or eastern Gulf of Mexico. The ensemble members of the European model currently has up to a 40 percent chance of tropical cyclone formation at this time.

Look for an article on this story midday Monday.



Storms Head Toward Northeast:

A broad area of low pressure will develop over the Midwest Tuesday, fueling showers and storms — some of which may be severe — across the region midweek. These storms will also dump heavy rain in numerous locations, so there will be a risk for flash flooding. As the cold front tracks to the east, that will bring the risk for a few, hit or miss thunderstorms into the Northeast Thursday and Friday. A few of these storms may also turn strong to severe. Thankfully, moisture will become lackluster by the time the front reaches the East Coast, so much of the coastal areas, including the I-95 corridor, should end up being mostly dry despite this storm system moving through.

Look for an article on this story later this week.

Author

Jackson is Head of Content at WeatherOptics and produces several forecasts and manages all social media platforms. Previously, Jackson forecasted local weather for southwestern Connecticut, founding his website, Jackson's Weather, in the March of 2015. He is currently studying Meteorology and Broadcast Journalism as the University of Miami.

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