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Weather Forecast For Houston And Vicinity, Tuesday, February 9, 2010
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While not seeing the histrionics developing over the northeastern U.S. (yes, they are getting another blizzard), the Houston metro will see its own share of weather-related problems over the next few days. Colder air has once again taken over all of Texas, and the regime originated in far northern Canada. So cold is the temperature array that the rain/snow line will move perilously close to the Bayou City as yet another storm forms off of the subtropical jet stream to our south. Actually, like its counterpart now aiming at the big cities along the Interstate 95 corridor, this feature will be a combination of two distinct entities, one out of Oregon and the other from the wild southern branch flow in the equatorial Pacific Ocean.
Given the very blocked nature of the upper air pattern, the new low will track well to our south, at a time when Arctic air is poised nearby. Clouds will increase after a very cold Wednesday morning, and rain should set in after nightfall. The Dallas-Fort Worth metroplex should see 4 - 8 inches of snow from this system, and sleet with freezing rain may create power and transportation issues as near as Waller, Montgomery, Liberty and San Jacinto counties. This being a lower latitude location, I am confident that most of what falls in daylight Thursday (with the storm strengthening) will be rain. But after sunset, and with a cooling atmospheric column in the deformation zone of the low, the mixed precipitation, and some glazing, could reach the northern half of the Houston metro. If that were to happen (I give odds of 1 in 3 at this point), then it could be a slow, tense drive in from the north on Friday morning.
But sun will return on Friday afternoon, and the first two-thirds of the weekend will be mainly fair, but on the cold side. On Sunday, yet another impulse from the subtropical jet stream (all stand up and say, THANK YOU, EL NINO !!!) will bring back the rain. And following that rain? Why COLDER and WINDY to start next week!
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The Forecast
Tuesday: Clearing, breezy and much colder. High 48 Bellville to 52 Manvel
Tuesday Night: Mostly fair and quite cold with frost or freeze conditions possible. Lows 28 Lake Conroe to 32 Missouri City
Wednesday: Increasing cloudiness and chilly. Highs 46 Navasota to 50 Kemah
Wednesday Night: Cloudy, breezy and cold with rain. Freezing rain and sleet is possible north of a Chappell Hill to Porter line. Lows 31 Cut And Shoot to 35 Pearland
Thursday: Cloudy, windy, raw with periods of rain. Some sleet may mix in above a Hempstead....Tomball....Cleveland arc.
Weekend Outlook
Friday: Clearing and chilly after early morning rain, sleet, freezing rain and snow. Roads above the Sam Houston Tollway in North Houston may be quite icy before 9 AM. High 48, Low 30
Saturday: Sunny and cool. High 54, Low 29
Sunday: Becoming cloudy and windy with rain developing late. High 53, Low 32
WEATHERAmerica (Google map, Image After http://www.wolken-online.de/images/wolken/cumulus/cumulus_mediocris_2.jpg )
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