Meteorologist Joe Cioffi Another Hot Humid Day Thunderstorms Possible Tuesday Wednesday Solar Eclipse Outlook

Another Hot Humid Day Thunderstorms Possible Tuesday Wednesday

We begin another day with temperatures set for blast off. Skies start the day clear so we should have a good deal of sunshine at least for awhile. To the west on the satellite picture you will notice clouds. These clouds are from the blow off of thunderstorms from an upper trough in the Middle Mississippi Valley. Tropical moisture is slowly pushing east and we will notice the dew points today inching higher making it increasingly uncomfortable.

SATELLITE

storm free

Today’s hot spots will be inland because the wind direction today will go from west southwest of the last two days with a limited sea breeze along the coast to more of a south wind. This will keep areas along the coast (not just the shore) in the mid to upper 80s but inland areas where the south wind is pure land wind will see highs reaching the low and middle 90s.

The daytime heating and the high dew points plus some developing instability could lead to scattered thunderstorms this afternoon and evening with the highest risk inland and away from the ocean wind influence. While we are not at general risk for severe weather, an isolated stronger storm can’t be ruled out.

We are back to a southwest wind but notice the highs tomorrow are lower especially inland. The disturbance to the west will be closer meaning more clouds than sun, a very humid day, and probably a higher chance for afternoon and evening showers and thunderstorms. Most highs Tuesday will be in the 80s to near 90 with dew points up in the upper 60s and lower 70s meaning a very muggy uncomfortable day.

Wednesday the wind goes back to the west and we have a backdoor cold front moving southward from Eastern Canada. Normally this could produce a very hot day but we will have residual clouds around leftover from the disturbance moving from the west so that will keep temperatures somewhat in check. Also the front could trigger off scattered late day thunderstorms. Highs Wednesday will be in the 80s to near 90 degrees.

Thursday morning at sunrise we going to have a solar eclipse. It will be what is known as an annular eclipse which means an eclipse in which a thin outer ring of the sun’s disk is not covered by the smaller dark disk of the moon. It will occur at sunrise. The cold front moving through is going to stall just to our south.

While the front has little precipitation with it Thursday morning it probably will have some clouds so the question is how much cloud cover will there be?  The below is the cloud cover forecast for 8am Thursday which is a couple of hours after the eclipse is over. We can see the impact of the front regarding cloud cover so New England stands a good shot of seeing partially clear skies but percentage of cloud cover rises as you head south. This does add cloud risk to obscure the eclipse and we will be focusing on this over the next few days. Models are all stalling out the front in about the same general place so I’m not sure there is much room for a better sky cover forecast unless a little more dry air from the high to the north can push its way south.

As the day wears on the front will buckle and we will see cooler highs in the upper 70s and lower 80s. North of the frontal boundary dew points will drop into the 50s but south of the front across Southern Pennsylvania and Southern New Jersey and points south, dew points will still be in the upper 60s and lower 70s leaving it very humid in those areas. Showers and thunderstorms will develop as a wave forms and moves east for Thursday night into Friday. Most highs will be just into the 70s. The good news is that it appears we will be one and done with the wave as it moves east and weather conditions could improve Friday night and leaving us with a mostly dry weekend. Heat is not likely to return however as Saturday’s winds will still be from off the ocean and Sunday we have a cold front with a chance for a shower or thunderstorm in the afternoon and evening.

 

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MANY THANKS TO TROPICAL TIDBITS FOR THE USE OF MAPS

Please note that with regards to any severe weather,  tropical storms, or hurricanes, should a storm be threatening, please consult your local National Weather Service office or your local government officials about what action you should be taking to protect life and property.

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