Saturday, November 13, 2004
Yesterday's record rains and today's winds
Jason Samenow @ 1:10 AM
Friday, November 12, 2004
Weekend outlook
Jason Samenow @ 1:52 AM
Rain on the horizon...
Jason Samenow @ 1:26 AM
Thursday, November 11, 2004
Veteran's Day Update
Jason Samenow @ 10:29 AM
The Veteran's Day Storm will not be forgotten by many Washington travelers. Almost a foot (11.5 inches) fell at National Airport. Prince Georges County, MD was hard hit with up to 13 inches of snow falling in a short amount of time. It caught motorists off guard and stranded cars on the Capitol Beltway. There were so many cars that snow plows could not get through to open the clogged arteries. Cars littered the roadway for more than 24 hours. The event precipitated the development of the Washington Metropolitan Area Snow Plan to facilitate preparedness and response to future storms.See also MarylandWeather.com's post about the storm.
This storm struck before the days of lightning detection networks and Doppler weather radar. When thunderstorms began dumping heavy snow over the Fredericksburg VA, forecasters had no idea. The storm moved northeast across the southern Metropolitan area (Prince Georges County). It was not until the fast accumulating snow hit Camp Springs, where at the time the Weather Forecast Office was located, did forecasters realize what was happening.
Wednesday, November 10, 2004
A taste of winter...
Jason Samenow @ 1:15 AM
Tuesday, November 09, 2004
Storms in space...
Jason Samenow @ 1:04 AM
The northern lights, also called the aurora borealis, is electromagnetic radiation caused by electrons colliding with molecules in the ionosphere. This spectrum of electromagnetic radiation ranges from infrared to ultraviolet. The visible spectrum is dominated by white and green light produced by excited oxygen molecules and pink light emitted from nitrogen.ExtremeInstability.com published some incredible photos of the northern lights taken Monday night in central Illinois. The photographer, a professional storm chaser, called the experience the "most amazing thing I've ever seen in my life. It beat every storm experience..."
When the sun is active, it often produces mass ejections that interact with Earth's magnetic field. Electric currents begin to flow in the upper atmosphere, and these currents produce the aurora borealis, which occurs almost simultaneously around both the north and south poles.
Monday, November 08, 2004
A Frosty? Week Ahead...
Jason Samenow @ 1:21 AM