Saturday, February 6, 2010

In the Teeth of the Blizzard

On Thursday, I posted a message relating to the El Nino effect taking storms out to sea south of Connecticut. That is happening right now as I write this. And it looks as if central Connecticut won't see any snow at all.

This weekend, my wife and I are visiting with my daughter, son-in-law and our 8-month old granddaughter. That's usually a great thing, and we always have fun with her. However, I should add that they live in Baltimore, and that's where I'm blogging from today--in the very center of the Blizzard of 2010. We arrived here yesterday on the last Southwest Airlines flight from Hartford to Baltimore before the remainder of their schedule was cancelled. The snow started around 3 PM and really picked up overnight. As of 11:45 AM today, Baltimore Airport has recorded 26.5 inches of snow, and it is still snowing heavily. It is very likely that the all-time record for a single snowstorm in Baltimore is 28.2 inches, and that will likely be broken.

While we are all safely indoors, the street that we are on is too narrow for a plow to get through, so we may be snowed in here for days. I hope not, but it's truly amazing to be a part of meteorological history.

Thursday, February 4, 2010

Another Near Miss. What Did You Expect from El Nino?

For the second time this week, a major winter storm is, by and large, going to miss central Connecticut. Earlier in the week, a storm system moved out to sea to our south, dusting Connecticut with a little snow, but depositing some 4-5 inches in the D.C-Baltimore area (which, for them, is a lot of snow).

Then forecasters started talking up another storm, supposed to affect our weather by Friday and into the weekend. The computer models were all over the place, some taking the system close enough to Connecticut to give us a decent snowfall (what broadcasters like to call a "plowable" storm). Other models were taking a more southerly track. As the week progressed, the models seemed to zero in on the more southerly track, once again taking the bulk of the snow through the Mid-Atlantic states, and missing Connecticut. In fact, as I write this, it appears that the Baltimore-Washington region is looking at the potential for 12-20 inches of the white stuff from this latest storm. So why are all these storms missing the northeast?

Simply put, there is a strong El Nino ocean current in the Pacific Ocean. When this occurs, the upper level jet stream over North America splits into a northern branch and a southern branch; and the southern branch is usually quite strong. The strong southern branch of the jet stream is responsible for all the rain in southern California, as well as the stormy weather that south Florida has seen this winter. It also tends to steer winter storms out to our south.

So while we still have plenty of cold air to deal with, we've been fortunate (sorry, all you skiers and snowboarders) that there hasn't been that much snow so far. And, for good measure, the storm that was being talked up for Tuesday and Wednesday is now also looking to be a bust, going south once again. This time you CAN blame it all on El Nino.