That escalated quickly

After a year without August storms, and for weeks talking about how quiet the North Atlantic was. we now have three named features in the Atlantic, including Tropical Storm Harold on the Texas Coast, Tropical Storm Franklin south of Hispaniola, and Post Tropical Storm Gert, which is already winding down.

Harold is projected to keep moving due west towards Arizona after landfalling around Padre Island later this morning The Southwest, of course, is already bouncing back from Hilary and likely to see well over their normal allotment of rainfall.

Franklin is moving north, which means rain and potential for flooding across Haiti and the Dominican Republic. Surely not areas that will withstand flash flooding well, but at least Franklin presently isn’t a particularly windy storm, nor will it linger over the island. He may become a hurricane over the north Atlantic, passing near Bermuda.

Gert isn’t necessarily done, but she will wobble around the northern Lesser Antilles for a few days. After that, it’s still a mystery.

These aren’t going to be storms for the record books or anything like that, but business is definitely picking up.

One quibble

The SPC is great, and I don’t know how easily performed this would be, but I would like to be able to see the population centers by severe region somehow on this map. How do you know that Duluth or Rhinelander are included in the northern marginal risk, because it is hogged by Phoenix suburbs, Tucson and Gulf Coast towns?

The quibble is minor, but I’ve learned that the grasp of geography is not what it should be.

Hilary landfalls in the Baja, heads into SoCal

Hilary made landfall earlier today and is now spinning over southern California. There is a lot that makes this different than a tropical storm you would find in the Atlantic, landfalling on that side of the ocean. First is the fact that there is cold water off the Pacific Coast, and the storm eroded quickly before she hit the Baja. Second, there is a lot more terrain in this part of the world than there is in, say, Florida. This means poorer radar availability through the mountains but a more acute threat for flash flooding. Look at all those flood reports and green boxed flash flood warnings if you want proof.

We don’t have the threat for tornadoes like we would to the east, though, and the winds are lower, and there is no storm surge to note. Earthquakes, though…

1200AM update:

Hilary is pushing moisture all the way up to Sacramento, and then it is catching the upper level flow, and there is a connection that wraps to northern Minnesota.

Super Soaker

When we put together our forecast for Syracuse a couple weeks back, I noted that I wasn’t buying into severe weather in the Syracuse area for the 7th and 8th. Truly, the severe weather did avoid Syracuse proper, though it was dicey in the Finger Lakes. Any good emergency response personnel will also tell you that flash flooding is severe weather too, and Syracuse got over three inches of rain during the two games of the forecast period, surely enough to cause significant problems around town. The Weather Channel was substantially better than the rest of this forecast, thanks in large part to a warm forecast on the 7th.
Actuals: August 7th, 2.46″ of rain, High 87, Low 66
August 8th, .8″ of rain, High 71, Low 66

Grade: A-C

Hilary is catching some attention

The North Atlantic is finally getting a bit more active, with a few waves that the NHC is monitoring, but right now, the storm that looks the most likely to have the next impact on the US is Hilary, in the eastern Pacific. Hilary at present is a major hurricane, but as she moves north, note that she will start diminishing fairly swiftly. The Pacific is a colder ocean, and her course along the Baja Coast will further blunt the storms intensity. Nevertheless, flash flooding and a few isolated tornadoes are probably going to come for SoCal and western Arizona as next week begins.

8:10 PM Update – The latest projection for Hilary takes her a little bit further to the west, which is bad news for the Southwest. Less time along the coast means that she won’t lose intensity quite as quickly, and there may be a bit more rain, a bit more wind as she moves into the Desert.

130AM Update – Those TS Watches in SoCal are the first to ever be issued for the region.

10pm Saturday Update – Hilary has been downgraded to a Category 1, and will be a tropical storm fairly soon. Like we talk about fairly often with severe weather in the east, this storm will be even more catastrophic because it is coming to a well populated area unaccustomed to tropical weather. The torrential rains will not be well handled, and residents should be prepared to contend with flash flooding.

Short Range Models spell good news for Minneapolis/St. Paul

The Twin Cities have been very fortunate in that they have avoided severe weather for the bulk of the year. Today, much of eastern Minnesota finds itself (along with Western Wisconsin) in the slight risk area for severe storms. It’s been there for 5 days now. Now, however, the short range models have thunderstorms emerging in northern Minnesota and not popping up south of St. Cloud until after 9, when the boundary is almost out of the Twin Cities.

It’s far too early to make any proclamations, but if the short range models are correct, the Twin Cities will continue their dry, incident free summer tonight.

Watch out for flash flooding in the central Appalachians

There is a stretch of of the US, generally from the Chesapeake southeast through the central Appalachians, which remains under a slight risk for today. That area will shift only a bit to the southeast tomorrow, and will bring some steady rain along the way. Already, parts of Maryland are being monitored for flash flooding.

The mid-Atlantic has seen a little bit of rough weather of late, and it’s mounting. Heavy downpours are a bit more apt to cause flooding, and that appears to be the situation tonight.