Sunny start to September 🌞

Update #617

Happy September! The 2024-25 school year is nearly upon the Hudson Valley. Welcome back! 🚌

I regret to inform you that there will not be a snow day this week.

However, I’m pleased to advise that there will be plenty of sunny days 😎

I trust that you’ll find this trade-off acceptable.

A week of very comfortable, low humidity air comes on the heels of the most humid summer on record across the United States as a whole. For the Hudson Valley, seasonal humidity has been in the top 20% of historical values. For much of the Northeast, it was the most humid summer on record (dark greens on the map below).

The U.S. experienced its most humid summer on record

Over the next two weeks, not one, but two, cool, Canadian air masses will flow across the Northeast. This will make it feel like October at times! Daytime highs will largely range from the upper 60s to the upper 70s and overnight lows will dip well into the 40s at times.

The week ahead

Moderate humidity today (Sunday) will fade away tonight. High pressure will be the main show in town through at least Thursday, if not Friday. A front may approach after that, bringing clouds and a chance for rain. The front’s timing and speed is currently uncertain, but some rain can’t be ruled out later Friday, Saturday, and possibly Sunday.

Monday: a sterling start to the week 🌟

Tuesday: stunningly sunny, if not a bit cool in the morning 🌟

Wednesday: beautiful weather once again 🌟

Thursday: remaining mostly sunny

Friday: increasing clouds and humidity, rain or showers possible later in the day

Saturday-Sunday: more clouds than sun with a chance for showers or rain on Saturday, possibly drying out for Sunday

Looking ahead to the week of September 9th, another Canadian air mass will likely move over the region to start the week. This would bring more comfortably cool conditions for the time of year.

Hurricane season update

A lot of interesting things have been happening with regards to hurricane season. A very odd pattern over Africa has resulted in tropical disturbances moving into the Sahara Desert instead of into Atlantic. That’s right — rain in the Sahara Desert! The weird weather will cause record breaking rainfall in countries like Algeria, Mali, Libya, and parts of Niger in the week ahead. I discussed this meteorological oddity on Twitter last week.

It’s not just lions that the Sahara Desert has — now it’s rain, too!

A lion enjoying a warm, 70 degree September day in Auckland on Sunday

Nevertheless, it’s the peak of hurricane season, and there’s a (relatively low) chance that a tropical storm or hurricane could enter the Gulf of Mexico in about a week.

I hope your week goes as smoothly as the weather ✌️