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Sep 30, 2009 4:37 pm US/Central
Severe Storms Possible For Thursday Afternoon
(CBS 11 / TXA 21)
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Blue sky appears as storm clouds recede behind power lines.
David McNew/Getty Images
A strong upper level trough is moving across the Rockies Wednesday afternoon and a surface low pressure system is strengthening in western Nebraska. These two elements will affect our weather here in North Texas in the next 36 hours.
The surface low in Nebraska is creating a strong pressure gradient which is increasing our winds here in North Texas. The winds coming out of the south and southeast this afternoon are racing northward transporting moisture to the storm system in the central plains. This will continue tonight and into tomorrow. It will be a mild night thanks to that southerly winds with temperatures dropping into the mid to low 70's.
Tomorrow that surface low will push into Iowa and swing a cold front into North Texas. Along with the cold fronts arrival, the upper level trough will move into the Central Plains. This will create the atmospheric support for severe weather. The strongest part of the upper level disturbance will be just to our north, but we should be close enough to the system to get a few strong to possibly severe storms here. The timing of the front and the upper level system suggest that the higher potential for severe weather will be in northeast Texas. Basically in areas north of I-20 and east of I-35. That quadrant appears to be the favored area for severe weather. The metroplex is just on the edge of the slight risk for tomorrow. Large hail and damaging winds appear to be the greatest threat, but at the onset of the storm development there is the possibility of a few supercells that could produce a tornado. This is more likely in Oklahoma, but could extend into Texas. Eventually the individual storms will merge into a squall line in East Texas.
The cold front will pass through DFW during the evening tomorrow and end our rain chances. Drier and cooler air will arrive Thursday night into Friday morning. Friday will be a beautiful day with lower temps and low humidity. Great football weather Friday Night!
WEEKEND = ONE NICE DAY, ONE WET DAY…
Saturday will be a pleasant day with partly cloudy skies and temperatures near 80 degrees. Sunday will be cloudy with off and on rain. It looks like the rain could start in the morning and then continue off and on thru the day.
NEXT WEEK, A WET WEEK…
There are strong indications that we will be dealing with showers and thunderstorms Monday thru Wednesday of next week as a southwest flow develops over Texas. This would pump Pacific moisture into our state and with left over fronts stilly laying in North Texas, this is a recipe for rain.
YOUR FORECAST…
Tonight… Becoming Cloudy after midnight… Low 73.
Tomorrow… Mostly cloudy in the morning, then partly cloudy with scattered showers and thunderstorms. Some storms could be severe. High of 87. Winds south at 20 to 30 mph.
Tomorrow Night… After the storms exit, it will be mostly clear and cool with a low of 57.
Friday… Mostly sunny and pleasant. High of 78.
Friday night… Mostly clear. Low of 56.
Saturday… Partly cloudy. High of 79.
Sunday… Cloudy with off and on rain. High of 78. Rain chance at 60%.
Monday thru Wednesday… Mostly cloudy with rain chances at 40% each day and highs in the mid to low 80's.
(© MMIX, CBS Broadcasting Inc. All Rights Reserved.)
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