Wednesday, July 22, 2020

Shower Chances, Maybe Strong South, Tropics Turning Active

Hanging baskets looking to the clouds and waiting for rain recently
on my back deck in St. Albans, Vermont. Flower and structural
design by my husband, Jeff Modereger
It's still not nearly as wet as I'd like it to be here in Vermont as the trend in below normal rainfall has continued since it at least April.

There are chances for showers and storms off and on through next week.  But I don't see anything major at this point. It also appears  - for now, anyway - that the imaginary anti-rain force in the Champlain Valley is holding strong.

Shower and storm chances look best for the next couple of days outside the Champlain Valley, though we can hold out some hope a stray shower will hit there, too.

There's actually a chance of strong to severe storms today in far southern Vermont and points south of there through southwestern New England down into the Middle Atlantic states.  High winds are the biggest threat in this broad area of severe storm risk, though an isolated, brief tornado can't be ruled out.

Further north, there might be a rumble or two of thunder, but nothing huge. Already this morning, a narrow band of showers has dampened a good chunk of southern Vermont, but that was moving out.

By later today and this evening, there will be a good shot at some showers outside the Champlain Valley.  In the valley, there will probably be some patches of rain, but the chances are there are a little less than elsewhere in the state, at least in my opinion.

It looks like more showers and storms will form tomorrow, but again, the best coverage seems like it could be outside the Champlain Valley.  It's not that northwestern Vermont will miss out on the rain. That area will almost certainly get some.  Just not as much as points south and east.

NOAA's Storm Prediction Center has all of Vermont of most of the Northeast in a marginal risk zone for severe storms on Thursday. That means there might be isolated incidents of strong, damagiing wind gusts, but nothing widespread.

The next real chance of rain in Vermont after tomorrow will come along on Sunday.  No guarantees on how much that will amount to, but all the meteorologists will surely keep an eye on that.

TROPICAL TROUBLE

Hurricane experts have ramped up the alarm bells about this year's hurricane season potential, given the unusually warm waters in much of the Atlantic Ocean where hurricanes tend to form. Other atmospheric factors still favor a lot of storms. Even worse, the current weather pattern, it it holds, would tend to steer storms toward the United States.
Summertime clouds not quite getting their act together enough
to produce showers this past Monday over St. Albans, Vermont.

We've already had hints of a troublesome year, since we're way ahead of normal in terms of how many tropical storms have already formed. There's already been six, but thankfully, they've all tended to be pretty weak.

Stronger hurricanes tend to get going in August and September, and you should expect the tropics to start becoming more active right about now.

The tropics certainly got that memo. Probably by the time you read this, Tropical Storm Gonzalo will have formed way out in the central Atlantic.  From there it will move west toward the Caribbean Sea, but exactly where and at what strength is anybody's guess

Wannabe Gonzalo is a tiny, cute little thing spinning out there.  Tropical systems that are small in size are notoriously hard to forecast, both in terms of strength and direction.  When such a storm is tiny, just a little bit of dry air intruding or a few gusts of strong upper level winds can tear it apart and kill it.

On the other hand, a tiny storm can defy predictions and cloak itself in its own protective shield of moisture, and strengthen quickly.   Right now the National Hurricane Center is taking, in my opinion, a correct conservative approach and just maintaining Wannabe Gonzalo as a tropical storm right through the weekend.  They'll surely change and update this forecast in the coming days.

It's possible Wannabe Gonzalo could pose a United States threat next week, but that is a big question mark right now.

Another weaker tropical type system is lurking in the Gulf of Mexico.  It's unlikely to become a tropical storm, though some computer models think it will strengthen to that level.  It's headed toward Texas, and will give parts of that state a deep soaking this coming weekend.

Another batch of storms that will move off the west coast of Africa in the next few days will also have to be watched in case it turns into an eventual threat.

No comments:

Post a Comment