Tuesday, June 25

[NorthGeorgiaWX]

Good morning!

 Is everyone enjoying the hot weather? 🙂 If not, hold on, more will be coming!  We just got back from Sandestin late yesterday, and it was a scorcher on the beach. The Heat Index there is about 107 today, so if you think the beach my be a little relief, think again.

This map is from 6 pm yesterday, and it shows the really hot temps and all of the Heat Advisories around the southeast. 

 

Zooming out this morning (Tuesday), we see an area of "Excessive Heat Warnings" (yellow arrow), and that area may be shifting east. 

 

These were the temps nationwide at 5:45 pm. The lower 48 states averaged 87.3º.

 

Heat Index at the same time.

 

One factor that causes a rise in the heat index, is the dew point. Notice how the highest Heat Index temp corresponds to the higher dew points. 

 

Keep in mind that our temperatures were running about 5-10 degrees above normal across north Georgia, but higher anomalies were a little further south toward central Georgia, but at 5:45 pm, the lower 48 states were only 5.6º. 

 

My high temperature on Monday was 87.3º which was a little lower (by 2.2 degrees) than Sunday. 

 

Despite the warm temps, I still haven't hit 90º F at my weather station this year. 

 

The reason for the heat is this area of high pressure.  Notice how we are on the downslope side of the high, which brings sinking air. Since sinking air is being compressed, and when you compress a gas it heats up, and that's brining the hot temperatures. 

 

Our hottest day is forecast to be on Wednesday, but it appears that the 100's will remain down over central Georgia. 

 

The Heat Index is a different story, and 100's may approach the north Georgia area. 

 

Notice the low dew points on Wednesday, it looks very similar to what we might see in a wedge, this is due to that sinking air as is crosses the mountains. Anytime the air mass passes over mountains, it sinks on the lee side. When the air heats up, the relative humidity drops, and in turn, we see very low dew points for this time of the year.  Dry air heats rapidly (think desert) and causes our temps to shoot up. 

 

 

We have been below normal for precip for several weeks now, but fortunately, the heavy rain that fell before that has carried us through. I know there were people that got tired of the rain, but I pointed out that the rain would come in very handy as we headed into summer, and that is the case right now. El Nino summers can be hot and dry, and sometimes the only meaningful rain we see is from tropical systems. 

 

So... hot this week. This is for me here in Big Canoe. Notice the increased chances for rain starting on Wednesday.

 

 

Here's our precip chances and amounts. Since these will be hit or miss showers and thunderstorms, I'll just show the graphs for my area, but they would be very similar for just about anywhere across north Georgia. Despite the chances, the precip amounts are pretty meager. You'll just have to hope one passes over your house. And speaking of that, the probabilities are for this to happen within 25 miles of any given point. Good luck with these odds. 🙂 Notice how the dew points will be on the rise. If you thought it felt hot before, just wait. 

 

 

The next 10 days sees the high shift east slightly, so expect more hot weather with above normal temperatures and little to no precipitation.

 

These are the potential 7 day temperature anomalies. Notice the urban heat island effect over Atlanta. 

 

Precipitation amounts will also be below normal. Think hot and dry with very few clouds. 

 

While there is some expected activity in the tropical Atlantic, there are no threats to the US over the next 10 days. 

 

Hope everyone stays cool and has a great week!

 

 

 

 

[Carolyn]

Summer in Georgia......!!!!  A little early, but still summer in Georgia.

[NorthGeorgiaWX]

1 hour ago, Carolyn said:

Summer in Georgia......!!!!  A little early, but still summer in Georgia.

Exactly.

 

[NorthGeorgiaWX]

While you might think it's really hot, let me remind you of the June two years ago. Keep in mind, this is my location, your results will vary.

In June of 2022, I recorded 6 days of temperatures of 90º F or greater, and that has been the hottest June since since I moved here in 2020. I averaged 75.5º F for that month, and I am currently averaging 74.2º F. I'm roughly 2000 feet in elevation.

I've recorded very few 90 degree days since 2020, so the likelihood of hitting 90 is fairly rare, but Wednesday may be one of those days.
------------
2020 - 2
2021 - 0
2022 - 8
2023 - 2
2024 - 0 so far

The image shows the summer of 2022 and I have included May.

 

This is by seasons.

[NorthGeorgiaWX]

Ryan Maue likes to use the Integrated Vapor Transport parameter to show where the moisture is going, so here is a loop. As you can see, the moisture is all around, just not here.