Winter began on Wednesday

December 22, 2005 at 2:43 am | Posted in Uncategorized | Leave a comment

Astronomical winter begins at the winter solstice, which this year occurred on December 21st, at 12:35 in the early afternoon. On this date, the sun is directly overhead at the Tropic of Capricorn, or 23 1/2 degrees south latitude. That means the sun is at its lowest point in the sky here in the northern hemesphere. And it also means that Wednesday was our shortest day of the year, lasting only 9 hours and 59 minutes. Of course, Wednesday night is the longest night of the year, measuring 14 hours and 1 minute long. In the coming weeks and months, the days will slowly grow longer and the nights shorter, until at the equinox in late March, we will have 12 hours each of daylight and dark.

Meteorologically, we consider the months of December, January, and February to be the winter months in the northern hemisphere. We use those three months to compare winters from one year to the next.

Historically, our coldest temperatures occur in mid January. Here in north Texas, from January 10 through January 13, our average temperature ranges from a low of 33 to a high of 53, the coldest temperatures of the year. After that, the temperature slowly rises. By the end of January, our average temperature is a low of 35 and a high of 56. And by the end of February, our average temperature ranges from 42 to 64.

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When was the last time we were this cold?

December 8, 2005 at 3:22 pm | Posted in Uncategorized | Leave a comment

The low Wednesday morning unofficially is 17.

Tonight may be colder.

Last time we were this cold (DFW)
Date: Low Temp
January 24, 2003 17
March 3, 2002 15
January 3, 2002 14
February 4, 1996 8

James Aydelott
meteorologist

Wind Chill/left over ice

December 8, 2005 at 12:09 pm | Posted in Uncategorized | Leave a comment

Be careful this morning, there is still a lot of residual ice on North Texas roads and highways. Lots of problems not only on the major streets and highways, but also on neighborhood streets and driveways and sidewalks. Also, be careful in parking lots too.

A strong high pressure building into North Texas is keeping a strong wind blowing this morning, wind chills will stay in the 0 to 15 range for most of the morning.

The wind will gradually decrease this afternoon, but temps will remain at or below freezing for highs.

James Aydelott

2pm view of the winter blast

December 7, 2005 at 7:49 pm | Posted in Uncategorized | Leave a comment

Another patch of sleet and snow is lifting northward from Ellis County into Dallas County. It appears to be mostly light sleet with some light freezing rain.

Drier air is beginning to pull into north Texas from the south, pushing the moisture further northeast. It looks like we’ll see just very light, trace amounts of precip in the metroplex after 3pm.

We will see this precip mainly in the form of sleet and snow. Some light snow or flurries will continue into late tonight before ending around daybreak.

No additional accumulations are expected in Tarrant County. Any accumulations in Dallas County will be very light as well.

Temps will drop to the upper teens by daybreak Thursday, so any standing water will freeze. Even with no additional precip, there will be lots of icy spots on roads, sidewalks and parking lots.

James Aydelott

noon view of the developing weather

December 7, 2005 at 5:56 pm | Posted in Uncategorized | Leave a comment

The way it looks now (noon)
The temps: North winds will continue to bring in sub-freezing temps. Temps will hold steady or slowly fall through the afternoon. Wind chills will remain 5 to 15 through tomorrow morning.

The precip: Currently, we’re receiving a light mix of freezing rain/sleet with some snow mixing in, especially N of I-30. As the cold air continues to deepen, we will see more sleet and snow than freezing rain, and eventually, by early evening, it looks like a changeover to all snow. This transition will happen sooner NW and gradually move SE. The light snow will continue until after midnight, tapering off to flurries by morning rush. Parts of the metroplex may see 1 to 2 inch total snow accumulations.

James Aydelott, meteorologist

WILL IT SNOW TOMORROW?

December 6, 2005 at 3:30 pm | Posted in Uncategorized | Leave a comment

THAT’S THE BIG QUESTION…AND THE ANSWER IS….MAYBE, BUT THE BETTER CHANCES ARE FOR SLEET.
Many things have to happen for us to see snow tomorrow.
First, we have to have very cold air in place. Temperatures on Wednesday will stay near freezing. But above the ground, around 5,000 feet high, if temperatures stay warm, we could see sleet instead of snow.
Second, we have to have moisture. It hasn’t rained here in over a month, and that’s the key. If rain begins to develop to our south, near Houston, and if it works its way northward, it will turn to sleet here. At this point, it looks like the best timing for this would be after the morning rush tomorrow, but we’re waiting to see the if rain develops to our south.
Like most winter weather situations here, it’s a waiting game! Stay tuned to NBC5 for the latest updates!

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