Extreme Temperature Diary- July 1, 2018/ Hot Topic: Historic U.S. Heat Wave Day Four

Sunday July 1st… Dear Diary. The main purpose of this ongoing post will be to track United States extreme or record temperatures related to climate change. Any reports I see of ETs will be listed below the main topic of the day. I’ll refer to extreme or record temperatures as ETs (not extraterrestrials)😊. Here is today’s main climate change post related hot topic:

Historic U.S. Heatwave Day Four

 Welcome everyone to July, which climatologically in the Northern Hemisphere is the warmest month of the year. If temperatures are above average during July for a few days or more at any one place outside of mountainous locations you can just about bet your last dollar that a heat wave is happening. The Northeast is the area getting hit the hardest on this July 1st with record heat and very high heat indices, but the good news for most of the Megalopolis area will see a cooling trend after Monday. We do see widespread excessive heat warnings (in purple) from the National Weather Service this afternoon in the Northeast, though:

Note that heat advisories from yesterday have been trimmed significantly out of the Midwest due to a front. Where there were once heat advisories in Wisconsin we currently see a severe thunderstorm watch (in yellow). Let’s not forget about our friends in northern California still dealing with heat and wildfire issues. 

On Monday heat will be unrelenting in the Northeast except at Boston, which will see onshore flow:

The front will stall out in the Ohio Valley and “wash out,” or die while taking the edge off of temps as far south as St. Louis. Temps in the 90s will start to spread back north through the central Plains.

Our heat ridge should retrograde and max out on Friday of this week as ensemble meteorology models have been forecasting the last several days:

So, will this heat episode truly be historic as I’ve advertised? The answer to that question is yes depending upon the location in either the Midwest or Northeast. The easiest way for weather historians to determine whether or not a heat episode is “historic” in nature is how many records the thing will tie or set over a duration of time. The proverbial jury remains out on the heat going from late June 2018 into early July. Certainly in the Midwest and Plains some of the most severe heat episodes occurred during the 1930s. Richard “Heatwave” Berler dropped me a note reminding me just how hot in the past some conditions can get: 

Hi Guy, here’s NCDC Monthly Michigan 1936 July data. 1936 was so amazing over such a large geographical area. Traverse City had a 90F mean on the 10th (104/76). Look at Marquette! ** means Midnight-Midnight obs.

By Friday our heat episode should be shifting west and south, but while hot, and in most cases above average, these two meter temperatures don’t stand out as “historically hot” despite a very strong looking ridge forecast by weeks end:
We will definitely keep tabs on what happens this week.
The following is a lot of information in association with the current heat wave:

Once in 33 years! That’s what a 7 day heat wave is and it is in our current forecast beginning 6/30 at Central Park.

Get more heat wave Info here:

Get more info about heat here:

Here is something fun to do to beat the heat😎:https://twitter.com/i/status/1013442417704472576
12:28 PM – 1 Jul 201812:28 PM – 1 Jul 2018
12:28 PM – 1 Jul 2018
12:28 PM – 1 Jul 2018
You don’t see this everyday:

Is 114 in CT the clubhouse leader?

I do like this tweet😉:
Here are some records (ETs) from Canada:

New record highs on this in parts of Québec & . 34°C in and 36°C in Petawawa on the thermometer! The next few days will be more of the same…

1:51 PM – 1 Jul 2018
Here are Sunday’s maxes:
Heat intensified along the East Coast as well as from Texas into Louisiana.

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The Climate Guy

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