Weekly Weather Summary: 7 to 13 May 2012

 

Barry Keim/ State Climatologist / keim@lsu.edu

 

(Based on preliminary reports received from approximately
120 NWS Cooperative sites from across the state)

 

...Every Now and Again, We Have a Week that is Normal...

 

The weather week opened on 7 May with a front approaching Louisiana from the northwest, with a remnant front offshore.  The approaching front produced some severe weather in Louisiana, mostly in northern Parishes.  Hail was reported in East Feliciana Parish, and damaging winds in Bienville, East Carroll, East Feliciana, St. Tammany, Webster, and West Carroll Parishes.  The front moved across Louisiana on the 8^th.  It produced rainfall, but without causing additional severe weather. High pressure moved in to the region on 9-10 May, but despite the mostly fair weather, double water spouts were produced off of Grand Isle, which moved inland causing damage.  On 11 May, cyclogenesis took place off of the Louisiana-Texas coast.  This storm then tracked across south Louisiana on 12^th, causing isolated areas of heavy rainfall, and thunderstorms nearly statewide.  Fair weather moved into the region on the 13^th.   

For the week, Statewide precipitation averaged 1.2 inches, which was normal.  However, rains were more abundant in southern Parishes, and somewhat below normal in the northern half of the State (see rainfall map below).  Statewide temperature averaged 73°F, which was also normal.