Just thought I'd better throw this in fro future reference:
Tornado Watch Number 737
NWS Storm Prediction Center, Norman, OK.
1030 am cst sun nov 25 2007

Issued a tornado watch for portions of south central and south-east
Louisiana coastal waters effective this Sunday morning and afternoon
from 10:30 am until 5:00 pm CST.

Tornadoes...hail to 0.5 inch in diameter...thunderstorm wind gusts to
70 mph...and dangerous lightning are possible in these areas.

Approximately along and 50 miles north and south of a line from 40
miles west north-west of intra-coastal city Louisiana to 40 miles
south east of [where there used to be a place called] New Orleans.

A warm front will lift slowly nwd across srn LA through the afternoon
in advance of a mid level low over TX...and a surface low developing
newd toward sw LA. despite widespread clouds and limited surface
heating...boundary layer dewpoints in the upper 60s will contribute to
sbcape values of 500-1000 j/kg this afternoon
along and s of the warm front. vertical shear will be maximized along
the boundary...where super-cells and a tornado or two will be
possible. otherwise...isolated damaging winds can be expected with
the most intense storms.

Aviation...tornadoes and a few severe thunderstorms with hail surface
and aloft to 0.5 inch. Extreme turbulence and surface wind gusts to 60
knots. a few cumulonimbi with maximum tops to 500. mean storm motion
vector 24025.

....Thompson

Lots more snipped and any amount of it can be recovered in their
archives. The site has just been updated. It was excellent before, now
it is superb:
http://www.spc.noaa.gov/