MESO: Mesoscale Discussion 0512

ACUS11 KWNS 132248
SWOMCD
SPC MCD 132247
OKZ000-TXZ000-140015-

MESOSCALE DISCUSSION 0512
NWS STORM PREDICTION CENTER NORMAN OK
0547 PM CDT FRI APR 13 2012

AREAS AFFECTED...MUCH OF WESTERN/CENTRAL/NORTHEAST OK

CONCERNING...TORNADO WATCH 160...

VALID 132247Z - 140015Z

THE SEVERE WEATHER THREAT FOR TORNADO WATCH 160 CONTINUES.

TORNADO WATCH 160 CONTINUES UNTIL 02Z. LARGE HAIL ASIDE...TORNADO
POTENTIAL MAY FURTHER INCREASE THROUGH SUNSET...ESPECIALLY ACROSS
SOUTHWEST/WEST-CENTRAL OK. WW 160 ADJACENT PORTIONS OF NORTHWEST
TX/EASTERN TX PANHANDLE ARE BEING MONITORED FOR AN ADDITIONAL WATCH
THIS EVENING.

SUPERCELLS CONTINUE TO DEVELOP/SPLIT OVER THE PAST FEW HOURS ACROSS
SOUTHWEST OK INTO MUCH OF CENTRAL OK...WITH LONGER-LIVED/SEVERE
PRODUCING EAST-NORTHEASTWARD MOVING RIGHT-MOVING SUPERCELLS. WITHIN
A CORRIDOR OF MODERATE INSTABILITY /1500-2500 J PER KG
MLCAPE/...VERY FAVORABLE WIND PROFILES WILL CONTINUE TO SUPPORT
LONG-LIVED SUPERCELLS CAPABLE OF LARGE HAIL/TORNADOES WITHIN THIS
SAME CORRIDOR...WITH A NORTHWARD EXPANSION INTO ADDITIONAL PORTIONS
OF WESTERN/NORTHERN OK AND PERHAPS ADJACENT NORTHWEST TX AS A LOW
LEVEL JET INCREASES AND FRONTAL BOUNDARY/DRYLINE AND ASSOCIATED
MOIST SECTOR RETREATS. REGARDING THE TORNADO THREAT...THE
AFOREMENTIONED SOUTHERLY LOW LEVEL JET IS EXPECTED TO STRENGTHEN
ESPECIALLY TOWARD/AFTER SUNSET. THIS LLJ INCREASE...COUPLED WITH A
MORE DISCRETE INITIATION/LONG-LIVED SUPERCELLULAR MODE AND MODIFYING
OUTFLOW-AIDED TRIPLE POINT...MAY LEAD TO A HEIGHTENED TORNADO THREAT
ESPECIALLY ACROSS SOUTHWEST/WEST-CENTRAL OK. THIS INCLUDES THE
POTENTIAL FOR A STRONG TORNADO.

..GUYER.. 04/13/2012

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...TSA...OUN...LUB...AMA...

LAT...LON 34250016 34860023 36939732 36559509 35489574 35069711
34039882 34250016

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
To unsubscribe from WX-STORM send e-mail to LISTSERV@LISTSERV.ILLINOIS.EDU with
"unsub wx-storm" in the body of your message. For more information write cnovy@cox.net.