By Justin Drabick

The upcoming days will be a good time to spend some time outside if you can. Some great May weather is on tap with sunshine and highs in the 70s.

We are moving into a blocking weather (omega block) pattern which means it is going to take a while to change our weather. The overall upper-level flow of the atmosphere resembles the Greek letter omega. Right now, we are located in the area of the pattern that provides nice weather. These patterns move very slowly allowing areas to end up with several days of the same weather.

In this omega block, areas of upper-level low pressure are located off the east coast and in the western U.S. In between, there is an upper-level ridge of high pressure which usually brings fair and warm weather. This setup of the lows and high pressure blocks the progression of storm systems. So from now through Thursday, expect dry conditions with sunshine and highs in the 70s. The warmest day looks to be on Thursday as the blocking pattern begins to break down allowing for highs to return to the upper 70s. Winds will remain northerly over the next several days which will keep humidity levels low.

Finally, the pattern breaks down enough by Friday to allow the next storm system to bring some shower and thunderstorm chances to the Delaware Valley, especially during the afternoon. This slow moving pattern will continue through the weekend providing shower chances on Saturday and Sunday with high temperatures around 70. The average high temperature for this time of year is in the low 70s so we are at or slightly above that for much of this week.

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