STORM SUMMARY NUMBER 21 FOR THE REMAINS OF T.D. "ALLISON" NATIONAL CENTERS FOR ENVIRONMENTAL PREDICTION HYDROMETEOROLOGICAL PREDICTION CENTER...NWS...CAMP SPRINGS MD 1100 AM EDT SUN JUN 10 2001 THE REDEVELOPING AREA OF LOW PRESSURE ASSOCIATED WITH THE REMNANTS OF TROPICAL DEPRESSION "ALLISON" IS OFFSHORE OVER THE GULF OF MEXICO 60 MILES SOUTH OF THE UPPER TEXAS COAST...NEAR 28.8N 93.8W...OR 70 MILES SOUTH-SOUTHWEST OF CAMERON LOUISIANA. THE SYSTEM HAS BEEN TRACKING STEADILY TO THE EAST-NORTHEAST AT 5 MPH DURING THE PAST 24 HOURS...AND THIS TRACK SHOULD CONTINUE INTO MONDAY. THERE HAS BEEN SOME INDICATION OVER THE PAST HOUR THAT THE CENTER MAY BE RE-FORMING 60 MILES EAST OF THIS LOCATION NEAR A CLUSTER OF STRONG THUNDERSTORMS CLOSER TO 92.5 LONGITUDE...WHICH WILL BE WATCHED. THE CENTER IS EXPECTED CROSS THE COAST INTO THE LOWLANDS OF SOUTH CENTRAL AND SOUTHEAST LOUISIANA AS SOON AS TONIGHT OR EARLY MONDAY MORNING. MAXIMUM SUSTAINED WINDS ARE 20 TO 25 MPH ACCORDING TO BUOYS...SHIP...AND OIL RIG REPORTS...MAINLY EAST OF THE CENTER ACROSS THE NORTHWESTERN GULF OF MEXICO ALONG AND OFFSHORE THE LOUISIANA COAST/OIL RIG FIELD. THE ESTIMATED CENTRAL PRESSURE HAS FALLEN TO 1006 MB...OR 29.70 INCHES. DOPPLER RADAR ESTIMATES THAT THE RAINFALL OVER THE PAST 24 HOURS HAS BEEN CONCENTRATED IN THE MARSHES OF SOUTHERN LOUISIANA AND JEFFERSON COUNTY IN TEXAS. ESTIMATED RAINFALL MAXIMA OF OVER 10 INCHES WERE SPOTTED BETWEEN WINNIE AND STOWELL IN SOUTHEAST TEXAS....AS WELL AS IN SOUTHERN LOUISIANA BETWEEN KAPLAN...ABBEVILLE...AND MARSH ISLAND. ESTIMATED STORM TOTALS ARE NOW OVER 25 INCHES AND COVER EXTREME SOUTHEAST TEXAS FROM WESTERN JEFFERSON COUNTY WESTWARD TO THE HOUSTON METRO AREA...AND IN THE MARSHES/SALT DOMES OF SOUTHERN VERMILLION AND ST. MARY PARISHES IN LOUISIANA. NO FLASH FLOOD WARNINGS ARE IN EFFECT FOR LOUISIANA OR TEXAS AT THIS TIME. FLASH FLOOD WATCHES REMAIN IN EFFECT IS A SWATH FROM EXTREME SOUTHEASTERN TEXAS EASTWARD THROUGH SOUTHERN AND CENTRAL LOUISIANA INTO SOUTHWEST MISSISSIPPI. HOWEVER...RIVER FLOOD WARNINGS REMAIN IN EFFECT FOR SOME OF THE SMALLER RIVERS...STREAMS AND BAYOUS ACROSS SOUTHERN LOUISIANA AND SOUTHEAST TEXAS AS IT CAN TAKE DAYS AFTER A RAIN EVENT FOR PRECIPITATION TO DRAIN INTO AREA RIVERS...AND REACH THEIR PEAK. SEVERAL RIVERS HAVE ALREADY CRESTED WELL ABOVE FLOOD STAGE AND HAVE BEGUN RECEDING...WHILE OTHERS ARE FORECASTED TO CREST OVER THE NEXT COUPLE DAYS. SELECTED 24 HOUR RAINFALL TOTALS INCLUDE: TEXAS (THROUGH 7 AM CDT, IN INCHES) LAKE HOUSTON.................5.40 HOUSTON CLOVER FIELD.........5.21 BEAUMONT/PORT ARTHUR AP......2.66 LAKE LIVINGSTON..............2.15 ANAHUAC......................2.15 LAKE CONROE..................1.95 LOUISIANA (THROUGH 7 AM CDT, IN INCHES) PATTERSON....................5.71 SALT POINT...................5.67 LAKE CHARLES.................2.54 GRAND ISLE...................2.20 HOUMA........................1.92 BOOTHVILLE...................1.81 SELECTED SIX DAY STORM TOTALS FOR ALLISON: HOUSTON CLOVER FIELD........21.39 HOUSTON HOBBY TX............20.86 SALT POINT LA...............19.41 BATON ROUGE LA..............18.56 PATTERSON LA................15.22 LAFAYETTE LA................15.21 THE HURRICANE CENTER IS KEEPING A CLOSE EYE ON THIS SYSTEM AND MAY DISPATCH RECONAISSANCE AIRCRAFT...IF NECESSARY...INTO THE NORTHWEST GULF OF MEXICO THIS EVENING TO DETERMINE IF A TROPICAL DEPRESSION OR TROPICAL STORM HAS REDEVELOPED FROM THIS LOW PRESSURE AREA. THE NEXT STORM SUMMARY WILL BE ISSUED AT 5 PM EDT. ROTH/ FORECAST OPERATIONS BRANCH