Here's an e-mail that they just sent to All Police here in Shreveport. I'm not sure how much of this pertains to the you guys over in Ruston, but it's just some FYI.
We remain confident that a fairly significant rainfall event will occur across the region this weekend as most of the parameters which we use to signal heavy rainfall events are forecast to be present on and off during the period Thu -> Sunday night.
It is also becoming more clear that this event will occur in 2 waves with the first wave occurring Thursday night/early Friday AM as a cold front slowly works its way into the region. It also appears that there will be a break in the action Friday PM/Friday Night for most areas north of I-20.
Thursday Night/Friday:
Rainfall: The initial thinking is 1 to 3 inches of rain will occur with this initial cold front across most areas. Some locations could see an isolated higher amount. This cold front will push south of the region during the day on Friday and giving the region a bit of a break with only light rainfall amounts expected late Friday/Friday night through Saturday AM
Severe Weather: The northwest half of the region is in a Slight Risk for severe weather which will primarily occur during the late afternoon and evening hours Thursday along/ahead of the front. Damaging Winds, Hail, and possibly an isolated tornado will be possible however wind shear is forecast to be on the low end for tornadoes...but it is still not negligible.
Saturday:
The front begins working back north as another piece of upper level energy moves closer and the rains move in from south to north across the region. The front is forecast to stall in to SW to NE fasion across our warning area near a Lufkin to Marshall to Hope AR line. And it is the location of this front which will determine where some of the heaviest storm total rains occur. Another 1 to 2 inches will be possible on Saturday..especially in Deep East TX/West Central LA.
Sunday:
The main piece of upper level energy will kick out during the day Sunday and we are expecting rainfall to pick up in intensity. Some areas could see as much as 2-4 inches overnight Saturday night through midday Sunday.
Impacts:
Flooding/Flash Flooding will be the primary concern...especially where storms are going to train across the same areas.
The River Forecast Centers have informed us that river flooding at this point would primarily be minor flooding. There are a few locations in the Sulphur River basin which could reach moderate flooding based on "Current" rainfall forecasts.
Severe weather threat, for now, is limited to Thu/Thu PM along and ahead of the cold front as it sags south today (Thursday)...with damaging winds, hail and a very isolated tornado threat possible.