[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 190732
SWOMCD
SPC MCD 190728 
AZZ000-CAZ000-190930-

MESOSCALE DISCUSSION 2247
NWS STORM PREDICTION CENTER NORMAN OK
0228 AM CDT SUN SEP 19 2004

AREAS AFFECTED...SERN CA...WRN AZ

CONCERNING...SEVERE THUNDERSTORM POTENTIAL 

VALID 190728Z - 190930Z

...ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS EXTREME SERN CA
INTO WRN AZ...

DEEP CONVECTION HAS RECENTLY INTENSIFIED ALONG LOWER CO RIVER
VALLEY...ESPECIALLY OVER ERN RIVERSIDE COUNTY CA.  THIS ACTIVITY IS
DEVELOPING ALONG WELL DEFINED ZONE OF BOUNDARY LAYER
CONVERGENCE...INDUCED BY LARGE SCALE TROUGH APPROACHING THIS REGION.
 DEEP LAYER SHEAR APPEARS SUPPORTIVE OF MAINTAINING DISCRETE
UPDRAFTS...ESPECIALLY IF CONVECTION CAN MAINTAIN ITS BOUNDARY LAYER
MOISTURE DRAW. LARGE HAIL MAY ACCOMPANY THE STRONGEST STORMS...OR
PERHAPS SOME STRONG WINDS AS THIS ACTIVITY SPREADS NEWD INTO WRN AZ.

..DARROW.. 09/19/2004

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

ATTN...WFO...FGZ...PSR...VEF...

32781477 34911320 34591443 33741497 

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