Storm Events Database

Event Details

Event Winter Storm
State TEXAS
County/Area WHARTON
WFO HGX
Begin Date 12/04/2009 07:00:00 CST-6
End Date 12/04/2009 16:00:00 CST-6
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage
Crop Damage
Episode Narrative Moderate, to locally heavy, snow fell across portions of southeast Texas. This resulted in the region's earliest recorded snow fall.

Preceding this event, a strong upper level storm system moved across Texas. In the wake of this system, a very cold Canadian air mass descended as far south as the coastal regions of southern Texas. A shortwave disturbance, rounding the base of a southwestern Texas upper trough, is what provided the lift needed to generate precipitation that fell within this arctic air mass.

Light rain developed over the coastal bend region that expanded northeast into the Houston-Galveston County Warning Area. This light rain, falling though a deep sub-freezing thermal layer, turned to snow and sleet over the southwestern counties of Jackson, Matagorda, Fort Bend, northern Brazoria and western Harris on the morning of the 4th.

Evaporative cooling and efficient cold air advection, in tandem with the nearing shortwave disturbance, formed a 1 to 3 inch total snow accumulation band parallel to, and near, the Highway 59 corridor. North and west of a line from Columbus to Conroe experienced snow accumulations generally less than 1 inch. The heaviest snow banding of between 3 to 5 inches fell along a southwest-to-northeast orientated line across Wharton, Fort Bend, and northern Brazoria counties.

Due to the fact that there was most likely significant melting upon surface contact, and snow was partially melting through a near surface above-freezing layer, a 5:1 liquid equivalent-to-snow ratio was a good approximation.
Event Narrative Snow accumulations of between 2 to near 5 inches occurred across the county. The highest reported accumulations were in Lane City and Boling where they received 4 to 5 inches of snow.


All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 0 0.00K 0.00K
WHARTON (ZONE) WHARTON (ZONE) TX 12/04/2009 07:00 CST-6 Winter Storm 0 0 0.00K 0.00K
MATAGORDA (ZONE) MATAGORDA (ZONE) TX 12/04/2009 08:00 CST-6 Winter Storm 0 0 0.00K 0.00K
BRAZORIA (ZONE) BRAZORIA (ZONE) TX 12/04/2009 08:00 CST-6 Winter Storm 0 0 0.00K 0.00K
FORT BEND (ZONE) FORT BEND (ZONE) TX 12/04/2009 08:00 CST-6 Winter Storm 0 0 0.00K 0.00K
JACKSON (ZONE) JACKSON (ZONE) TX 12/04/2009 11:00 CST-6 Winter Storm 0 0 0.00K 0.00K
Totals: 0 0 0.00K 0.00K