Thursday, November 29, 2012

11/29/12 Hurricane Season Recap

Technically, hurricane season does not end until tomorrow, but with no potential storms in the Atlantic or Gulf right now, let’s look at a season recap.

Tracks of all tropical systems in 2012
 
This year, we had a total of 19 named storms, 10 of which made it up to hurricane strength (74mph+). However, we had no Category 4 or 5 hurricanes in the Atlantic/Gulf, and we had only one Category 3 hurricane. So how does this compare to average years? Normally we have only 12 named storms a year with the number of storms making it to hurricane strength around 6. However, the number of major hurricanes, which is a Category 3 or higher (111mph+), is typically 3 per year. This year we only had one, Hurricane Michael, which stayed over the open Atlantic. This year also produced the least number of major hurricanes in a season since 1997, when there was only one Category 3, Erika. If that wasn’t enough, we've only seen two years with no Category 4 or Category 5 hurricanes since 1995: 2006 and 1997.
Hurricane Sandy Track
The ironic part of this season is that we started off with a bang, leaving many wondering if this would be a sign of the rest of the season. In May, before hurricane season officially begins in the Atlantic/Gulf, two storms, Alberto and Beryl, had developed. Both only became tropical storms, and both had very little impact on the U.S. Also, this is the seventh consecutive year that no major hurricanes (Category 3, 4 or 5) have hit the United States.
Hurricane Isaac
 
Of course, the caveat is that it doesn't take a major hurricane to cause big damage. Look at Isaac and Sandy, both of which caused devastating floods, along with high winds that caused numerous power outages.
Hurricane Isaac track
 

Wednesday, November 21, 2012

11/21/12 Earth Art From Space


The Earth's atmosphere experiences a roller coaster of changes over the course of 24 hours -- from dust storms, solar storm particles, carbon bursts, to tropical cyclones, pollution, and even sea salt swirls. However, most of this is invisible to us here on Earth’s surface, but from space, you have the perfect view.

Earlier this week, NASA posted a video compilation, titled “Paint by Particle” which illustrates the movement of all the particles that are in Earth’s atmosphere. The time-lapse takes place from August 2006 to April 2007.

At first glance, the video conjures up images of sand art picture frames such as these, but then you realize it is so much more than that. Each color represents a different type of particle in the atmosphere: dust (red), sea salt (blue), sulphate and/or high storm clouds (white), but also living organisms (green). Yes, the green color is actually organic carbon material, some of which came from living plants/bacteria. Here is the video below so you can see the beauty for yourself.
 
Sources: NASA, Youtube, Yahoo, Mashable

Thursday, November 15, 2012

11/15/12 Leonid Meteor Shower

Many will get a special treat this weekend when the Leonid meteor show arrives in the early hours of Saturday morning, November 17th. The shower, named after the Leo constellation will be white or bluish white in color. While most are faint, some do appear notably bright, and leave glowing trains in their wake.

This year will differ slightly than normal years in that the Leonids are expected to show two peaks of activity, one on Saturday morning (Nov. 17) and another on Tuesday morning (Nov. 20). A perk this year is that the moon will not be a problem for this year’s shower. A downfall for this year, is that at best, there will be 10 to 15 meteors per hour Saturday morning, which is well below normal.

As with any astronomical event, the showers will be better the further you get from city lights, and will be brightest in the Northeastern horizon.
 
Sources: National Geographic, space.com, NWS

Monday, November 12, 2012

11/12/12 Total Solar Eclipse

Starting at 23:30 UT Tuesday, a total solar eclipse will be visible for four minutes and two seconds, over a 99 mile wide path. However, the only city that will be able to view the total eclipse will be Cairns, Australia. The eclipse will also pass over part of the Garig Ganak Barlu National Park in Australia’s Northern Territory, but sky-watchers will only be able to enjoy two minutes of the total eclipse there. Places like New Zealand, Fiji, Papau New Guinea, Solomon Islands, and much of Indonesia will only be able to see a partial solar eclipse.  

Don’t live in Cairns, Australia? Don’t worry! Thanks to the internet you can watch the whole thing live at websites such as this one, or this one.  The eclipse will actually occur at sunrise on Wednesday, Nov. 14 for Australians watching it live, but it will still be Tuesday afternoon for people watching online in America.
Light blue lines indicate partial eclipse, dark blue line indicates area of total eclipse.

On August 21, 2017, we will have a chance to view a total solar eclipse here in the U.S. Cities such as Lexington, SC (13 miles west of Columbia), Dillard, GA (110 miles northeast of Atlanta), Athens, TN (60 miles northeast of Knoxville), Hopkinsville, KY (70 miles north of Nashville), St. Joseph, MO (50 miles north of Kansas City), Casper, WY (210 miles north of Denver), Salem, OR (45 miles south of Portland). This total solar eclipse will be visible for two minutes and 40 seconds. Many major cities such as Nashville, Atlanta, Kansas City, Columbia (SC), Portland (Oregon), Charleston (SC), and Lincoln (Nebraska) will be able to see a partial solar eclipse that day.
 
Sources: National Geographic, McGlaun.com, NASA, NOAA, space.com

Friday, November 9, 2012

11/9/12 Were Models Lacking With Sandy?

With Hurricane Sandy something of the past now, it is brought to our attention that our technological advancement here in the U.S. is far behind that of other countries. Well over a week prior to Sandy made landfall in the Northeast, some of the weather computer models were predicting “Sandy” (unnamed at the time) to be an unusual, yet very strong storm to the very region it hit. Some of the other computer models predicted that the storm would develop, but would head out to the Atlantic and spare the U.S. entirely. While all of the models ended up with the same consensus, including the National Hurricane Center (NHC) 4 days before it hit the New Jersey/New York, was that enough time for all residents, businesses, and governments to prepare? It also limits the time to rush supplies to that area that they will need once the storm hits.


While the actual weather computer models themselves were invented here in the U.S., the level of accuracy and ability of those models have fallen substantially behind those of other nations’ models. In fact, Kerry Emanuel, a writer for the Wall Street Journal, believes we may actually be in third or even fourth place compared to other nations. So who is the leader of the pack? What is commonly referred to as the Euro Model, is definitely at the top. In fact, this year alone, the Euro correctly predicted the tracks of both Hurricane Isaac and Sandy well before the other models did. This is important since these were the two big storms that actually hit the U.S. The Washington Post noted that the NHC’s parent company, NOAA had mentioned the European model’s scenario on its website, saying that if it proved true, it would create “a powerhouse capable of whipping the Atlantic into a frenzy and churning up dangerous tides.” However, it did not go as far as to agree with the model, just to say that basically “this is what the Euro model is predicting”.
 

“[The U.S. has] tremendous weather forecasting capacity, but we’re still losing to the Europeans,” said Heidi Cullen, chief climatologist at Climate Central, a nonprofit that communicates science to the public.

Why is the Euro so much better than the others? Well, for starters, the Euro model tends to focus more on numerical weather prediction and run their models on larger and faster computers.

In fact, Judith Curry, chairwoman of the School of Earth and Atmospheric Sciences at Georgia  Tech, said about the Euro, “[It’s] better overall”.  She also went on to say that the model has a higher resolution than its U.S. equivalent, makes more frequent forecasts, and is better at assimilating satellite data.
 

However, one area where we excel over them is that we recognize that this information is a public good, and since it is funded largely by the taxpayer, it should be available free of charge to the public. Why is that so important? Well, ironically, some European businesses prefer to use U.S. forecast models because they are free, whereas some U.S. businesses will actually spend very large amounts of money for European forecasts because they are better. So if only we could provide the same accuracy that the Euro does, and free like we currently do, we certainly would get back on top again.

Marshall Shepherd, director of the atmospheric sciences program at the University of Georgia, blames lack of funding for many of the problems facing NOAA. “That only gets worse going forward as we talk about sequestration and cutting agencies’ budgets,” he said.

But is more money necessarily the solution to fixing this problem? What if the real solution lies with restructuring the current NOAA system. Why not do like the European model does, and instead of only having one country’s model be the end all be all, use multiple countries to provide that model data? Conceivably we could have Canada and Mexico join in with us, providing us with a larger blend of government, media, academic, and private sector talent. Perhaps then could we get back on top again, and not have to rely so much on other computer models, simply because they are better than ours.

 

Sources: Speakeasy, Wall Street Journal, Politico, NOAA, Spaghettimodels.com, Wright Weather, ABC, NY Daily News,

Wednesday, November 7, 2012

11/7/12 New Nor'easter Brings In Winter

Before many are able to even get their power back from Superstorm Sandy, a new Nor’easter will hit starting late today bringing snow, sleet, and freezing rain. This new storm will also bring powerful winds of around 20-30mph, with some gusts as high as 60mph. That will likely blow down trees and limbs that were already weakened from Sandy. In addition to further delaying power being restored to more than 600,000 people who have been without it since Sandy hit more than a week ago.

 Another concern many authorities are dealing with is trying to clean up a lot of the leftover debris on the ground, which could end up becoming projectiles in this new storm.

Evacuations were ordered for nursing homes and healthcare centers in the Rockaways area (a section of Queens) in New York. Airlines have also canceled over 750 flights in and out of New York City. Along the Jersey Shore, the communities of Brick and Middleton have also ordered evacuations.

Getting fuel has been an ongoing problem for residents in New York and New Jersey for days now, and this will likely only add to that problem. Fuel rationing is already in place in New Jersey. In fact, some residents were hiring school children to stand in line with gas cans, and price gouging has been an issue in parts of New York.

Some snow totals for areas of the Northeast include:
New York City-   1-2” snow
Newark, NJ-   2-4” snow
Philadelphia-   3-5” snow
Baltimore-   1-2” snow
Hartford, CT-  1-3” snow, with a tenth of an inch of ice
Bangor, ME-  1-2” snow, with two tenths of an inch of ice
Some areas, including the higher elevations of upstate New York could see 5-8” of snow through Friday.