Winter Storm of February 11-12, 2010 across the entire region

Winter Storm of February 11-12, 2010

A significant winter storm affected all of the four state region
Which began in the pre-dawn hours thursday...February 11th. Arctic
High pressure had built into the region during the early portion of
The week ahead of a potent upper level disturbance which moved
Across the southwestern states tapping a large plume of subtropical
Moisture. As the upper disturbance moved closer to our region...The
Moisture was lifted up and over the cold artic air already in place.
Light snow began to fall across areas west of interstate 49 before
Sunrise thursday and the intensities increased throughout the day
Mainly north of a jacksonville texas...To natchitoches louisiana
Line. As the upper disturbance moved closer...Snowfall rates
Increased to as much as 1 to 2 inches per hour in some locations
During the evening hours on thursday...Lasting into the early
Morning hours friday. The rain which had been falling across
Portions of deep east texas thursday eventually changed over to all
Snow during the early morning hours friday. When the storm ended
Early friday...Much of the area had received 4 to as much as 9
Inches of heavy wet snow. Numerous schools and businesses were
Closed and many roads were closed due to snow and slush covering
Them. Also...Due to the weight of the snow...Numerous trees were
Downed on powerlines causing power outages to nearly 100 thousand
People across the region.

This storm ranks 7th all time in total snowfall...Which was 5.4
Inches...For shreveport since records began in 1871...And the most
Snow the metropolitan area has seen since december 16th 1983...When
5.4 inches of snow was recorded.

Below are some preliminary snowfall totals from across the region:

LOCATION STATE LAT LON EST. OR MEASURED (IN)

...ARKANSAS...
TEXARKANA        AR        33.45 -94.02       5.8
ATHENS        AR        34.32 -94.07        3.0
DE QUEEN        AR        34.04 -94.34        2.0
STAMPS        AR        33.36 -93.50        2.0

...LOUISIANA...
MONTGOMERY 5 SE        LA        31.61 -92.83        6.0
NATCHITOCHES        LA        31.76 -93.10        6.0
NATCHITOCHES 5 NW         LA        31.81 -93.16        6.0
WINNFIELD 10E        LA        31.92 -92.47         6.0
JENA        LA        31.69 -92.13        6.0
SHONGALOO 5 N        LA        33.01 -93.29        6.0
PROVENCAL        LA        31.65 -93.22        6.0
SHREVEPORT NWS        LA        32.47 -93.80        5.4
WHEELING         LA        31.76 -92.96        5.2
HANNA         LA        31.96 -93.35        5.0
MONROE        LA        32.51 -92.08        5.0
SWARTZ         LA        32.57 -91.99        4.2
PLAIN DEALING 4 W        LA        32.91 -93.77        4.0
HOMER         LA        32.79 -93.06        4.0
CLARENCE         LA        31.82 -93.03        4.0
ARCADIA         LA        32.55 -92.92        4.0
FARMERVILLE         LA         32.77 -92.40        3.0
BLANCHARD        LA        32.59 -93.89        3.0
BENTON         LA        32.68 -93.66        3.0
COLUMBIA         LA        32.10 -92.08        3.0

...OKLAHOMA...
IDABEL 8 SE        OK        33.82 -94.72        7.5
VALIANT         OK        34.00 -95.09        6.0
BROKEN BOW         OK        34.03 -94.73        5.5
BATTIEST         OK        34.40 -94.93        3.0

...TEXAS...
LINDALE         TX        32.51 -95.41        10.0
CARTHAGE         TX        32.16 -94.36        9.0
LINDALE         TX        32.51 -95.41        8.0
DE KALB         TX        33.51 -94.62        8.0
MOUNT VERNON 9 S        TX        33.04 -95.22        7.5
MINEOLA         TX        32.67 -95.49        7.5
MOUNT PLEASANT         TX        33.17 -94.98        7.0
ELYSIAN FIELDS         TX        32.38 -94.27        7.0
LONGVIEW         TX        32.52 -94.76        7.0
DIANA         TX        32.70 -94.75        7.0
GILMER         TX        32.75 -94.99        6.6
CENTER         TX        31.79 -94.18        6.5
LONGVIEW 2 NE        TX        32.54 -94.74        6.5
MAUD         TX        33.43 -94.42        6.0
NACOGDOCHES         TX        31.64 -94.62        6.0
HALLSVILLE 5NE         TX        32.55 -94.52        6.0
HENDERSON         TX        32.16 -94.80        6.0
ATLANTA         TX        33.12 -94.16        6.0
BULLARD 8 NW         TX        32.22 -95.42        5.0
RUSK         TX        31.80 -95.15        4.7
JOAQUIN         TX        31.97 -94.05        4.0
GLADEWATER 2 N         TX        32.57 -94.95        4.0
CHIRENO 5 E         TX        31.50 -94.26        3.0
LUFKIN 11 NW         TX        31.45 -94.86        2.0
HEMPHILL         TX        31.34 -93.85        2.0


Winter Storm of February 11-12, 2010 across the entire region
A still shot of the radar image over surface temperatures on Thursday Feb 11 at 9:30 AM shows most of the region is breaking out in snow.
The rain/snow line wavered during the day but stayed primarily over deep east Texas until late Thursday night when everything
changed over to all snow.

Winter Storm of February 11-12, 2010 across the entire region
Map of the many of the snowfall reports across the region

Winter Storm of February 11-12, 2010 across the entire region
Atlanta Texas in Cass County reported 6 inches of snow. Submitted by a Skywarn Spotter.

Winter Storm of February 11-12, 2010 across the entire region
Longview Texas received 6 to 7 inches of snow. Submitted by amateur radio operator.

Winter Storm of February 11-12, 2010 across the entire region
Winnfield LA reported 6 inches. Areas stretching from Natchitoches to Jena LA reported 5-7 inches. Submitted by NWS Employee

Winter Storm of February 11-12, 2010 across the entire region
Stonewall LA reported 5 inches. Submitted by an observer.

Winter Storm of February 11-12, 2010 across the entire region
Longview Texas. Many of the trees across the region were weighed down by the heavy snow. power outages were widespread.

Winter Storm of February 11-12, 2010 across the entire region
An meteorological overview of the pattern which led to the historic snowfall amounts across our region.

Winter Storm of February 11-12, 2010 across the entire region
The weather balloon launched at 6 AM on Thursday indicated that the atmosphere was entirely below freezing except for the lowest few hundred feet.
This is a typical profile for a snow event.

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