6:30pm UPDATE:  The circulation has diminished, but this storm could recycle again as it heads north and closer to downtown Dallas.  The storm on its present course should clip the areas just to the southeast and east of downtown.  Residents in the path of this storm are encouraged to seek shelter now.

Significant threat of a large tornado entering southern Dallas county and approaching the DeSoto area. This is a confirmed large and dangerous tornado and residents in DeSoto, Red Oak, Lancaster and Hutchins need to be seeing shelter now.  This tornado is heading North/Northeast at approx 40mph.  

ELLIS TX-DALLAS TX-
614 PM CST SAT DEC 26 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CST FOR NORTH
CENTRAL ELLIS AND CENTRAL DALLAS COUNTIES...

AT 612 PM CST...A CONFIRMED LARGE AND EXTREMELY DANGEROUS TORNADO WAS
LOCATED OVER DESOTO...MOVING NORTH AT 40 MPH.

THIS IS A PARTICULARLY DANGEROUS SITUATION.

HAZARD...DAMAGING TORNADO.

SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO.

IMPACT...YOU ARE IN A LIFE THREATENING SITUATION. FLYING DEBRIS MAY
         BE DEADLY TO THOSE CAUGHT WITHOUT SHELTER. MOBILE HOMES
         WILL BE DESTROYED. CONSIDERABLE DAMAGE TO
         HOMES...BUSINESSES AND VEHICLES IS LIKELY AND COMPLETE
DESTRUCTION IS POSSIBLE. THIS DESTRUCTIVE TORNADO IS MOVING INTO
DESOTO AND LANCASTER. IF YOU ARE NEAR THIS STORM...TAKE COVER
IMMEDIATELY TO PROTECT YOUR LIFE!

THE TORNADO WILL BE NEAR...
  WILMER AROUND 620 PM CST.
  HUTCHINS AND COCKRELL HILL AROUND 625 PM CST.
  BALCH SPRINGS AROUND 635 PM CST.
  UNIVERSITY PARK AND HIGHLAND PARK AROUND 640 PM CST.
  GARLAND AND MESQUITE AROUND 645 PM CST.

THIS INCLUDES THE FOLLOWING INTERSTATES...
 INTERSTATE 35E BETWEEN MILE MARKERS 410 AND 436.
 INTERSTATE 20 BETWEEN MILE MARKERS 457 AND 477.
 INTERSTATE 30 BETWEEN MILE MARKERS 34 AND 63.
 INTERSTATE 45 BETWEEN MILE MARKERS 272 AND 284.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TO REPEAT...A LARGE...EXTREMELY DANGEROUS AND POTENTIALLY DEADLY
TORNADO IS ON THE GROUND. TO PROTECT YOUR LIFE...TAKE COVER NOW! MOVE
TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY
BUILDING. AVOID WINDOWS. IF YOU ARE OUTDOORS OR IN A VEHICLE...MOVE
TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING
DEBRIS.

&&

LAT...LON 3252 9675 3252 9690 3255 9697 3287 9703
      3288 9652
TIME...MOT...LOC 0012Z 202DEG 35KT 3258 9685

TORNADO...OBSERVED
TORNADO DAMAGE THREAT...CONSIDERABLE
HAIL...1.00IN