ZCZC NFDSPENES ALL
SPENES
MSZ000-LAZ000-ARZ000-TXZ000-OKZ000-
.
SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 07/04/08 1958Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES 1945Z       CW
.
LOCATION...NW MISSISSIPPI...N LOUISIANA...S ARKANSAS...NE TEXAS...
LOCATION...SE OKLAHOMA...
.
ATTN WFOS...MEG...JAN...LZK...SHV...TSA...FWD...OUN...
ATTN RFCS...LMRFC...ABRFC...WGRFC...
.
EVENT...SLOW MOVING TSTMS CAPABLE OF PRODUCING PERIODS OF HVY RAINS
.
SATELLITE ANALYSIS AND TRENDS...OVER THE PAST 2-3 HRS SCATTERED TSTMS
HAVE DEVELOPED ALONG AN OUTFLOW BOUNDARY DRAPED ACROSS S OK/NE TX THRU
CENTRAL AR.  SINCE ABOUT 1815Z TSTMS HAVE BEGUN TO BE A BIT MORE ORGANIZED
ACROSS CENTRAL AND SOUTHERN AR WHERE STRONGEST SFC MOISTURE CONVERGENCE
IS SEEN IN 19Z SFC ANALYSIS.  CLOUD SHIELD OF -66C HAS EXPANDED OVER
THE LAST HR COVERING MOST OF S AR.  RATHER HIGH PW VALUES (OF 1.9-2.0")
AND 70F SFC DEW POINTS ARE FOUND POOLED ACROSS SE OK/NE TX/CENTRAL AND
SOUTHERN AR/N LA/NW MS.
.
THESE STORMS HAVE BEEN MOVING RATHER SLOWLY TO THE SE ACROSS AR WITH
THE STORMS FURTHER UPSTREAM ACROSS THE OK/TX BORDER REMAINING NEARLY
STATIONARY OVER THE PAST 60-90 MINS.  STLT WIND FIELDS INDICATE MID-UPPER
LVL FLOW IS GENERALLY W-E WITH LLVL FLOW VERY LIGHT..WHICH IS LIKELY
CONTRIBUTING TO THE SLOW PROPAGATION OF THESE STORMS.  STLT ESTIMATES
RAINFALL RATES SUGGEST STORMS ARE CAPABLE OF PRODUCING 0.5-1.0"/HR RATES
AND MAY LAST BETWEEN 1-2 HRS.  A SLIGHTLY MORE ELEVATED CONCERN WHERE
HVY RAINS MAY POSE A PROBLEM IS ALONG THE OK/TX BORDER WHERE STORMS ARE
MOVING VERY LITTLE.  ADDITIONAL LOCALIZED AMOUNTS OF 1-1.5" IS POSSIBLE
OVER THE NEXT 1-2 HRS.
.
PLEASE SEE WEB ADDRESS IN ABOUT 10 MINS FOR STLT GRAPHIC.
.
SEE NCEP HPC DISCUSSION AND QPF/S FOR FORECAST.
....NESDIS IS A MEMBER OF 12 PLANET....
.
SSD/SAB WEB ADDRESS FOR PRECIP ESTIMATES:
HTTP://WWW.SSD.NOAA.GOV/PS/PCPN/
...ALL LOWER CASE EXCEPT /PS/PCPN/
.
LAT...LON 3460 8989 3258 9110 3343 9785 3444 9718
.
NNNN
 
Full Size Graphic


-