After several gorgeous summer days, featuring blue skies, warmth and low humidity… reality returns to the Hudson Valley on Sunday, in the form of heat, humidity, and atmospheric instability.
In terms of the heat at least… these temperatures are nothing we haven’t seen already. Saturday saw highs in the upper 80s (Poughkeepsie 89°), so the difference won’t be in terms of temperatures. The big change will be increased humidity.
A weak frontal boundary will sink into the Hudson Valley from Canada on Sunday. Ahead of the boundary, we’ll have a southwest flow, pumping moisture up into the northeast. The boundary will serve as a focal point for pop up showers and thunderstorms on Sunday. As the heating of the day warms the atmosphere, the air will become unstable, and storms will begin to fire.
The data is a bit uncertain as to the exact timing… but it appears likely that storms could fire up any time after 2pm. Not everyone will get a storm, but roughly half of the Hudson Valley appears likely to get in on the action. In a situation like this, the best thing to do is use the HVW Interactive Radar to zoom in to your location, and track the storms. This way you can know if rough weather is heading toward your location. We’ll likely see a repeat performance on Monday… with the area of highest risk of rain & storms being a bit further south (likely near and south of I-84).
Then we have a potential heat wave to contend with. High pressure will drift off the east coast, and set up a strong southwest flow. This will once again pull heat and humidity from the Southern Plains and Gulf of Mexico… right up into the northeast, and the Hudson Valley. With a warm air mass already in place… additional heat and humidity will potentially give us our 2nd heat wave of the summer, and maybe even the hottest temps of the summer so far.
The heat builds on Tuesday… and Wednesday appears to be the hottest day, with highs likely between 95° and 100°. When you factor in the humidity… it could feel over 100° across our area. The heat continues into Thursday… but is likely met with afternoon T-Storms, that hopefully will bring an end to the heat wave.
The details of this event are still being ironed out. But now is the time to mentally prepare for another stretch of hot summer weather across the Hudson Valley. If you have outdoor plans Tuesday, Wednesday or Thursday, you’ll want to begin factoring in extreme heat as a possibility. Wednesday’s not the best day to go for that 5 mile run… at least not the way it looks at the moment.
We’ll keep you posted, but for more details on our current thinking, please check the:
HVW 5 DAY FORECAST
It is summer… but we have plenty of weather to keep us focused. Check in with HVW both here, and on the Facebook page, for updates on the situation. Have a great Sunday!!