ZCZC NFDSPENES ALL
SPENES
LAZ000-ARZ000-TXZ000-
.
SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 05/15/08 0620Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-EAST:0615Z  JS
.
LOCATION...N LOUISIANA/S ARKANSAS/SW TO NE TEXAS
.
ATTN WFOS...JAN...LZK...LCH...SHV...HGX...FWD...EWX...
ATTN RFCS...LMRFC...WGRFC...
.
EVENT...SOME ORGANIZATION TO VERY LARGE AREA OF CONVECTION STRETCHING
FROM SW TX TO N LA HAS BEEN NOTED RECENTLY WITH SEVERAL SPOTS OF POTENTIAL
HEAVY RAINFALL.
.
SATELLITE ANALYSIS AND TRENDS...ANALYSIS OF THE SITUATION SHOWS WAVE
FORMING ALONG FRONTAL BOUNDARY/ASSOCIATED CONVECTION OVER NE TX. A SFC
TROF WAS ANALYZED ACROSS FAR N LA/S AR EXTENDING EASTWARD INTO N CENT
MS WITH SOUTHERLY SFC FLOW NOTED SOUTH OF IT ACROSS SE TX/S AND CENT
LA/S AND CENT MS. EXPECT WAVE AND ASSOCIATED CONVECTION TO CONTINUE TO
SPREAD EASTWARD ACROSS NE AND E TX WITH ADDITIONAL DEVELOPMENT TAKING
PLACE OUT AHEAD OF IT DUE TO FORCING FROM APPROACHING WAVE ESPECIALLY
FOCUSED IN THE VICINITY OF AFORMENTIONED SFC TROF. POTENTIAL HEAVY RAIN
THREAT IS ESPECIALLY PRONOUNCED FOR REGION OF NE TX/N LA/S AR WHICH HAS
NOTICEABLY LOWER FFG VALUES DUE TO LAST NIGHT'S DELUGE. CURRENTLY BEST
SATELLITE SIGNATURE EXISTS WITH BATCH OF VERY COLD CLOUD TOPS STRETCHING
FROM AROUND HOUSTON/TRINITY COUNTIES TO BURLESON COUNTY. AUTOMATED
SATELLITE ESTIMATING TECHNIQUES HAVE SHOWN GENERALLY 1.5" TO NEAR 2.5"
ALONG THE PATH OF THESE CELLS AS IT MOVED EASTWARD OVER CENT TX. FOR THE
NEXT COUPLE OF HOURS RAINFALL TOTALS COULD BE HIGHER THAN THOSE AMOUNTS
ACROSS AREAS OF E CENT TX INTO W CENT AND N CENT LA ESPECIALLY IF NEW
CELL FORMATION CONTINUES OUT AHEAD OF THIS INTENSE BATCH.
.
FOR SW TX...OTHER AREA TO WATCH DURING THE NEXT COUPLE OF HOURS FOR AT
LEAST SOME POSSIBILITY OF HEAVY RAINFALL IS OVER SW TX WHERE BOUNDARY HAS
BECOME WEST-EAST ORIENTED WITH RECENT NEW CELL FORMATION TAKING PLACE
FROM NEAR THE RIO GRANDE AND DEL RIO EASTWARD TO REAL/UVALDE/ZAVALA
COUNTIES. AN APPARENT SOUTHWARD MOVING OUTFLOW BOUNDARY FROM ACTIVITY
FARTHER TO THE NE ACROSS CENT TX IS ALSO AIDING THE CONVERGENCE FOR THIS
NEWLY FORMING BATCH. AUTOMATED SATELLITE ESTIMATES ARE INCREASING TO
OVER 1" IN THE PAST HOUR OR SO FOR A COUPLE OF SPOTS WITHIN THIS AREA. A
PORTION OF THIS REGION ALSO WAS AFFECTED BY CELLS EARLIER THIS EVENING
WHICH MAY ENHANCE LOCALIZED HYDRO ISSUES.
.
AN ANNOTATED SATELLITE GRAPHIC WILL BE AVAILABLE ON THE INTERNET AT THE
ADDRESS BELOW IN APPROXIMATELY 10 MINUTES.
.
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 3358 9170 3120 9271 2826 10077 2932 10122
.
NNNN
 
Full Size Graphic


-