[MCD] SWOMCD

[Mesoscale Convective Discussions]

ACUS11 KWNS 192349
SWOMCD
SPC MCD 192349 
MSZ000-LAZ000-TXZ000-200115-

MESOSCALE DISCUSSION 1570
NWS STORM PREDICTION CENTER NORMAN OK
0649 PM CDT WED JUL 19 2006

AREAS AFFECTED...SOUTH CENTRAL MS/NORTHERN AND CENTRAL LA/EASTERN TX

CONCERNING...SEVERE THUNDERSTORM WATCH 618...621...

VALID 192349Z - 200115Z

SMALL VALID PORTION OF SEVERE THUNDERSTORM WATCH 618 CONTINUES UNTIL
01Z ACROSS SOUTHWEST MS...ALTHOUGH IT MAY BE CANCELLED EARLY. SEVERE
THUNDERSTORM WATCH 621 CONTINUES UNTIL 05Z ACROSS NORTHERN/CENTRAL
LA INTO EASTERN TX...WITH PRIMARY THREAT FOR DAMAGING WINDS.

COMPOSITE OUTFLOWS/LOCALIZED STABILIZATION IN WAKE OF EARLIER
STORMS...IN ADDITION TO LOSS OF DIABATIC HEATING OVER THE NEXT FEW
HOURS...SUGGESTS THE SEVERE THREAT ACROSS SOUTH CENTRAL MS INTO
EASTERN LA HAS DIMINISHED CONSIDERABLY. REMAINING SMALL PORTION OF
WATCH 618 WILL LIKELY EXPIRE AT/BEFORE THE SCHEDULED 01Z EXPIRATION.

FARTHER WEST...WEAK UPPER IMPULSE AND WELL ORGANIZED MESOSCALE COLD
POOL CONTINUES TO DRIVE MCS /WITH HISTORY OF WIND DAMAGE/ WESTWARD
ACROSS CENTRAL LA...WITH THE LEADING EDGE NEAR THE INTERSTATE 40
CORRIDOR AND THE WINNFIELD/ALEXANDRIA AREAS AT 2330Z. ORGANIZED
NATURE OF THE COLD POOL/20 KTS OF STORM RELATIVE LOW LEVEL
INFLOW...COUPLED WITH AN UNSTABLE AIRMASS DOWNSTREAM...SUGGESTS THE
THREAT FOR DAMAGING WINDS WILL CONTINUE OVER THE NEXT FEW HOURS INTO
WESTERN LA...AND LIKELY ACROSS THE SABINE RIVER INTO EASTERN TX.

..GUYER.. 07/19/2006

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

ATTN...WFO...JAN...LIX...LCH...SHV...

31999507 32599491 32849329 32759208 31199099 30649257
30789430 

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