We are in the middle of what will be the longest and most intense Heat Wave of the summer. The high temperature Wednesday was just 90 degrees, but the mercury will soar much higher than that during the next few days.
Excessive high temperatures in the Philadelphia area have prompted officials to issue an air quality alert Monday.
This first official weekend of summer ended up very pleasant with near average temperatures and low humidity. A trough or dip in the jet stream over the northeast this weekend has kept a cooler and drier air mass in place. As we move into the workweek the jet stream pattern will change a bit.
The weekend ends with a very humid air mass over the Delaware Valley. Dew points reached the 70s on Sunday which is very high. Dew points are another way to measure the humidity.
The past few days have been nice and comfortable temperature wise with highs in the upper 70s to low 80s. Humidity levels also have been low as a cooler air mass has settled into parts of the mid-Atlantic and Northeast.
A holiday heat wave has moved into the region prompting an excessive heat advisory until 9 p.m. tonight.
The USDA has revised its cooking guidelines for pork. You no longer have to cook it to 160 degrees. You can now serve it at a more medium rare temperature of 145 degrees.
After the unsettled weather last week, the pattern has shifted to more summer-like for this week. Warm temperatures, humidity, and shower and storm chances return to the forecast this week.
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.
A cold front has stalled out north of the Delaware Valley allowing for a warm air mass to move into the region.
Homeowners are paying a lot more to heat their homes than they did this time last year.