[MCD] SWOMCD

[MCD at goshenarc.org]

ACUS11 KWNS 172019
SWOMCD
SPC MCD 172017 
AZZ000-NVZ000-CAZ000-172215-

MESOSCALE DISCUSSION 2026
NWS STORM PREDICTION CENTER NORMAN OK
0317 PM CDT TUE AUG 17 2004

AREAS AFFECTED...PORTIONS OF FAR SERN CA...FAR SRN NV AND NWRN AZ

CONCERNING...HEAVY RAINFALL 

VALID 172017Z - 172215Z

CONVECTION DEVELOPING OVER THE REGION SUPPORTED BY SUBTLE SHORTWAVE
MOVING OUT OF SRN CA WILL HAVE A TENDENCY TO BACKBUILD UPSTREAM ON
THE WEST SLOPES OF MTN RANGES IN FAR SRN NV...SERN CA AND THE WRN
MOGOLLON RIM/GRAND CANYON AREA OF NWRN AZ. HEAVY RAINFALL RATES FROM
1-2 IN/HR WILL BE LIKELY...ESPECIALLY IN NWRN AZ THROUGH THE
AFTERNOON.

REGIONAL VWP AND SFC DATA SUGGEST DEEP WLY FLOW INTO THE REGION ON
THE SWRN PERIPHERY OF THE UPPER LOW CENTERED OVER SLC AND AHEAD OF
SHORTWAVE MOVING EWD FROM SWRN CA. MOIST AIRMASS WITH PW/S AROUND
1.5 INCHES PER NOAA PW SAT IMAGERY EXISTED OVER THE REGION. 18Z PHX
SOUNDING FURTHER SUPPORTED THIS. MODERATE UPSLOPE CONDITIONS ON THE
WRN FACING PORTIONS OF MTN RANGES IN THE AREA WILL SUPPORT
CONVECTIVE REDEVELOPMENT AND WWD BACKBUILDING WITH TIME ENHANCING
RAINFALL RATES AND TOTALS.

..CROSBIE.. 08/17/2004

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

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

33811647 34891669 36591533 36461388 35811292 34881296
34471324 34031451 

WWWW