Weather: Wildfire smoke drifts away on Sunday as summer stretch begins | Time

Smoke from the wildfires will finally be blown offshore on Sunday as the start of a new pattern arrives. This one will keep us very hot and humid through the astronomical end of summer on Thursday. A few highs will hit 90 on Monday.

We’ll start with the smoke, which has brought great sunrises and sunsets, but has also muted our bright blue skies to shades of gray since Thursday. Coming from the Pacific Northwest Wildfire, the thickest patch of smoke will emerge offshore Sunday morning around an upper-level high pressure ridge that will lie just above.

Because of this high pressure ridge, we will be warmer. The ridge is actually just a thicker part of the atmosphere. A thicker atmosphere can hold more heat than a thinner atmosphere. Hence our warm-up.

Temperatures will start around 60 inland and in the mid 60s on the shore. With a southwesterly wind, highs will reach the mid 80s inland. At the coast we will be around 80 degrees. All in all, excellent for anything outdoors, whether it’s Creekfest at Absecon or day two of the Downbeach Seafood Festival.

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Sunday evening will be warm, typical of mid-August. We will only fall into the 80s and 70s for the evening under a mostly clear sky. Overnight lows will be in the mid to upper 60s. Southwesterly winds will also make it a bit muggy.

We will be stuck between the high to the east and a cold front to the west for Monday. This will bring up southwesterly winds at all levels of the atmosphere. This will give us a very hot, even hot day.

High temperatures still seem to be in the upper 80s for most inland cities. However, there will be a few, maybe Buena Vista, that will be around 90 degrees. It won’t be a dry heat either. It will be noticeably moist (but not too heavy). This will put the maximum heat index at over 90 degrees everywhere. The highest heat index we had at Atlantic City International Airport didn’t even hit 90.

So, it could be the hottest day of the month and extend into next spring.

On the coast, we will be in the 80s. We should have a little sea breeze to develop. It will be comfortable, with ocean and bay temperatures in the high 70s.

Our first of two slight threats of rain will occur Monday evening between 7 p.m. and 5 a.m. A cold front will cross the region.

Widespread rain is going to be hard to come by. That being said, I bet a few of us are getting a few showery spits that total a few hundredths of an inch. Maybe it will break our dry streak at our reporting stations, but it won’t ease the dryness.

The overnight lows will be in the mid to high 60s. That’s about ten degrees above average.

Once the cold front has passed, we will have a sunny Tuesday. We’ll take a break from the humidity as dew points hit the dry 50s. High temperatures will be almost as warm as Monday, with low temperatures in the mid-80s. It will be a splendid month of September.

Wednesday will be largely the same. We will have sunshine and 80s inland with the shoreline around 80 degrees. The difference will be additional moisture in the air.

Thursday will be a windy, warm and fairly muggy day for the first day of astronomical fall. Southwest winds of 15 to 20 mph will blow ahead of a cold front. This cold front will pass. Rain is not excluded. More than likely, this will just usher in our freshest September air.

Contact Joe Martucci:

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