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AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 258 PM CDT THU SEP 23 2004 .DISCUSSION... TROPICAL STORM IVAN CENTER HEADED FOR LA COAST NEAR THE MOUTH OF THE SABINE THIS EVENING. WILL PROBABLY HAVE TO MAKE SOME MINOR CHANGES TO THE FORECAST AFTER THE HURRICANE COORDINATION CALL. WILL CONTINUE WITH GENERAL FORECAST IN ALREADY IN PLACE. AS IVANS REMAINS GET INLAND ACROSS SOUTHEAST TEXAS FRIDAY AND SATURDAY THE UPPER JET EXTENDING OFF TO THE NORTHEAST WILL HELP VENTILATE THE SYSTEM AND A SPEED MAX CURVING IN FROM THE SOUTHWEST (ETA SOLUTION) WILL PUT SOUTHEAST TEXAS IN A COUPLED JET SCENARIO FRIDAY NIGHT - SATURDAY MORNING...THIS WHILE THE DEEPER MOISTURE FROM THE YUCATAN WILL BE INTO SOUTHEAST TEXAS. COULD HAVE A SIGNIFICANT CORE RAIN EVENT. UPDATED THE FLOOD WATCH WITH WIDESPREAD 2 TO 4 INCHES AND ISOLATED AMOUNTS OF 10 INCHES...GIVEN THE SLOW MOVEMENT MAY GET AMOUNTS IN EXCESS OF 10 INCHES. I guess the local mets are saying that if Ivan goes slowly to the SW and back maybe back into the gulf than he will bring so much moisture from out of the gulf that it could make a 10-15 inch or maybe even 20 inch rain total. |