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Turning Stormy in the Northwest

An active fall storm pattern developing in the Pacific Northwest this week will bring areas of heavy rain and high elevation snow. Northern California will benefit from rainfall this week that will aid firefighters given the recent large wildfires. Read More >

Clear skies and light winds will allow temperatures to fall into the 40s and 50s overnight tonight.
Southerly winds will bring increasing Gulf moisture to the region during the next few days. Low chances of shower and thunderstorms will return Friday. Highs will be in the upper 70s to mid 80s. Lows will moderate with 50s expected Wednesday night, upper 50s to mid 60s Thursday night and 60s area wide Friday night
There will be a low chance of showers and thunderstorms on Saturday. The better threat for more organized thunderstorms will be late Saturday through Sunday. A few storms will have the potential to become strong to marginally severe with gusty winds and hail along and ahead of the front. Cloud to ground lightning may accompany any of the storms.

 
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Snow covered barn in Wise County.

Heavy Snow Event 

March 6, 2008

   

 

On 6 March 2008, a convective precipitation band formed across North Texas and quickly transitioned from rain to snow in a 60 km wide zone extending from west of the Dallas / Fort Worth metroplex northeast into extreme North Texas near the Red River. The snow persisted for over three hours with accumulations averaging 7 cm and isolated reports up to 30 cm near the heaviest convective precipitation. Frontogenesis and the resulting ageostrophic circulation appeared to play key roles in not only providing significant forcing for ascent but also in modifying the vertical temperature profile to be supportive of a liquid-to-frozen precipitation transition.  The presence of atmospheric instability led to isolated thunderstorm development, with occasional cloud-to-ground and in-cloud lightning observed in the band of heavy snow. This study reviews the complex interactions between moisture, instability, and forcing for ascent that occurred during this convective winter weather event.

Download Paper Here 

 

NWS Ft. Worth Research Webpage

Satellite Image Taken the Morning After the Heavy Snow