After the first 10 days of September that felt more like October, we finally have a summer feel returning to the Hudson Valley.
A warm ridge of high pressure has pushed into southern Canada, and shifted our flow out of the south. That will translate into warmer conditions than we’ve seen lately, with highs in the upper 70s to near 80° in spots. Dew points should be higher, in the low to mid 60s, making for a bit of a stickier feel to the air than what we’ve become used to. Along with all that, comes the threat of a few spot rain showers… even a thundershower. Here’s the simulated radar from 6am Thursday to 12am Friday.
You can see that a few spotty showers or even a thunderstorm can’t be ruled out, but the radar isn’t exactly ‘active’. So be aware of the potential for a shower here and there.
With the remnants of Irma having been pinned off to our southwest, it’s created an unsettled pattern over the Ohio Valley the past several days.
The trough left over from Irma will SLOWLY push east over the next 3 to 4 days, and that should set up a multi-day pattern of warm, rather humid, and unsettled weather. This weather pattern should carry us through the weekend.
For now, Jose is well out to sea, and not expected to cause much trouble for the next several days. However, after the trough left over from Irma pushes east… it should make room for Jose to push north. Exactly where atmospheric features set up in 5 to 7 days, will determine if Jose gets pushed out to sea harmlessly… or dragged back to the west. If it’s dragged back toward the US coast… it could be ripped apart by wind shear. So we need to keep watch for now… but Jose is looking more like a headache, than a threat.
And one last cool nerdy piece of science. Hurricanes churn up the ocean during their lifespan. The heavy rainfalls and hurricane force winds really stir up the ocean beneath it. Here’s a before an after that actually show you where these storms tracked…
The above image is the NCEP sea surface temperature anomaly reanalysis as of September 3rd. You could already see the after effects of Harvey. But just 10 days later, the map looks like this…
In the wake of these powerful hurricanes, in addition to the visible damage they produce, you can also see just how much these storms churn up the seas. Dropping the sea surface temperatures several degrees, by upwelling the cooler ocean waters from beneath the surface. Pretty wild stuff.
Have a great Thursday.