| Overview |
| A potent upper level low pressure wrapped cold arctic air and moisture around the north and west side of the low. This helped to produce light to moderate snow across portions of the area. Heavy snow was reported in McCurtain County in Southeast Oklahoma, where up to six inches was reported. |
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| Snow Accumulations from March 21, 2010 |
| OKLAHOMA |
| LOCATION |
AMOUNT |
| Broken Bow |
3 inches |
| Idabel |
1.5 inches |
| ARKANSAS |
| LOCATION |
AMOUNT |
| Ashdown |
0.8 inch |
| De Queen |
0.2 inch |
| Hope |
0.2 inch |
| Nashville |
0.2 inch |
| LOUISIANA |
| Shreveport |
0.1 inch |
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| Snow Accumulations from March 21, 2010 |
| TEXAS |
| LOCATION |
AMOUNT |
| Clarksvile |
4 inches |
| Daingerfield |
0.2 inch |
| 6 miles S of Gilmer |
1 inch |
| Lindale |
2 inches |
| 2 miles SW of Lindale |
1.5 inches |
| Longview |
0.2 inch |
| 1 mile W of Longview |
0.5 inch |
| Marshall |
1 inch |
| Mount Pleasant |
1.5 inches |
| 7 miles SSE of Mount Vernon |
1 inch |
| New Boston |
0.5 inch |
| Quitman |
2 inches |
| Tyler |
0.2 inch |
| 5 miles N of Tyler |
0.5 inch |
| 8 miles S of Tyler |
0.5 inch |
| Yantis |
1.5 inches |
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| The snow wasn't the only story. The cold temperatures set daily low maximum records at many locations. Here is a list: |
| LOCATION |
OLD RECORD |
NEW RECORD |
RECORD SINCE |
| Shreveport, LA |
42 in 1970 |
40 in 2010 |
Records since 1874 |
| Monroe, LA |
43 in 1970 |
42 in 2010 |
Records since 1930 |
| Texarkana, AR |
44 in 1956 |
38 in 2010 |
Records since 1896 |
| El Dorado, AR |
40 in 1970 |
40 in 2010 |
Records since 1907 |
| Longview, TX |
42 in 1915 |
40 in 2010 |
Records since 1902 |
| Lufkin, TX |
46 in 1968 |
44 in 2010 |
Records since 1906 |
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| Radar image from 11am CDT on March 21. Snow bands had developed on the west side of the upper level low and funneled south. Temperatures were generally in the low to mid 30s areawide.. |
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| Upper-air profile taken Sunday morning at the NWS office in Shreveport. Very cold temperatures existed aloft. In fact, the 850 mb (5000 ft) temperature was -9 degrees C. |
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| Water vapor satellite imagery showing the "bowling ball" low over Northwest Louisiana early Sunday morning. |
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| Picture from the Winnsboro, TX, area where up to 2 inches of snow was reported. Photo is courtesy of KLTV. |
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| Picture from the Lindale, TX, area. Photo is courtesy of KLTV. |
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