ZCZC NFDSPENES ALL
SPENES
.
SATELLITE PRECIPITATION ESTIMATES..DATE/TIME 05/24/07 1940Z
SATELLITE ANALYSIS BRANCH/NESDIS---NPPU---TEL.301-763-8678
LATEST DATA USED: GOES-12 1915Z  HANNA
.
LOCATION...TEXAS...OKLAHOMA...
.
ATTN WFOS...FWD...OUN...EWX...SJT...MAF...
ATTN RFCS...ABRFC...WGRFC...
.
EVENT...CONVECTIVE LINE MAKING SLOW SEWARD PROGRESS....CONVECTIVE CELLS
DEVELOPING IN PRE-SQUALL LINE AIR MASS
.
SATELLITE ANALYSIS AND TRENDS...LATEST INFRARED AND VISIBLE SATELLITE
IMAGERY SHOWS THAT CONVECTIVE LINE CONTINUES TO MAKE A STEADY SEWARD
PROGRESS AT ABOUT 15-18KTS OVER THE PAST FEW HOURS.  CONVECTIVE LINE
CURRENTLY ORIENTED ALONG AN APPROXIMATE AXIS FROM AQR TO MWL TO JUST SOUTH
OF SWW.  RAINFALL AMOUNTS HAVE GENERALLY BEEN RUNNING AROUND 0.50-1.0"
WITH THE PASSAGE OF LINE WITH ISOLATED AREAS RECEIVING BETWEEN 1.0-3.0"
NEAR THE PREVIOUSLY WELL DEFINED CONVECTIVE WEDGE NEAR ABI.  THAT WEDGE
FEATURE HAS BECOME MUCH LESS DEFINED OVER THE LAST 30-45 MINUTES BUT IN
THE MEANTIME CONVECTIVE CELLS HAVE BEEN RAPIDLY INITIATING AHEAD OF THE
LINE APPROXIMATELY FROM ERATH TO RUNNELS COUNTY.  THE MOST IMPRESSIVE
OF THESE CELLS WAS FEATURING A VERY WELL DEFINED OVERSHOOTING TOP OVER
SE COLEMAN/SW BROWN COUNTIES.  PRE-CONVECTIVE LINE CONVECTION LOOKS AS
THOUGH IT SHOULD INTERACT AND EVENTUALLY MERGE WITH CONVECTIVE LINE OVER
THE NEXT HOUR OR SO.  APPROXIMATE MERGER LOCATION WOULD BE SOMEWHERE IN
THE VIC OF AN AXIS FROM BWD TO SEP.  WOULD EXPECT LOCAL RAINFALL RATES
IN EXCESS OF 2.0"/HR IN ANY MERGERS.
.
FURTHER TO THE WEST A CU/TCU BOUNDARY EXTENDS TO JUST SOUTH OF MAF WITH
AN INTERSECTING SURFACE TROF EXTENDING FROM THERE SOUTH TO PECOS COUNTY.
ATMOSPHERE STILL LOOKING CAPPED IN THIS AREA BUT MID LEVEL FORCING WITH A
SUBTLE SHORTWAVE TROF NOW COMING OUT OF NORTHERN MEXICO LOOKS AS THOUGH IT
WILL OVERSPREAD THE AREA OVER THE NEXT SEVERAL HOURS.  THIS COULD PROVIDE
SUFFICIENT DESTABILIZATION TO IGNITE CONVECTION ALONG ABOVEMENTIONED
BOUNDARIES. GIVEN PLACEMENT OF INSTABILITY RESERVOIR ON GOES DPI (UP TO
-12 LI'S) NEAR THE BIG BEND REGION WILL HAVE TO MONITOR THE POTENTIAL
FOR REGENERATING CONVECTION IN THIS APPROXIMATE AREA WITH DOWNSTREAM
TRAINING OVER AREAS THAT ALREADY HAVE RECEIVED HEAVY RAIN IN CNTRL TX.
WILL CONTINUE TO MONITOR.
.
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 3388 9732 3316 9667 3173 9716 3082 9887 3051 10019
3057 10100 2994 10241 3000 10283 3060 10261 3104 10271
3130 10303 3154 10249 3176 10218 3214 10137 3228 10054
3260 9935 3337 9813
.
NNNN