LIBERTY, October 21, 2009 - TODAY THROUGH THURSDAY AN UPPER LEVEL TROUGH OF LOW PRESSURE WILL APPROACH FROM THE WEST...WITH ITS ASSOCIATED COLD FRONT MOVING ACROSS THE AREA THURSDAY. THIS TROUGH WILL DRAW UP GULF MOISTURE THROUGH THE DAY...AS WELL AS BRING IN PACIFIC MOISTURE AND DISTURBANCES ROTATING OFF OF WEAKENING TROPICAL STORM RICK. SCATTERED SHOWERS AND THUNDERSTORMS TODAY WILL BECOME MORE NUMEROUS OVERNIGHT TONIGHT AND THURSDAY AS THE FRONT APPROACHES.

THE PRIMARY THREAT WITH THIS EVENT WILL BE HEAVY RAINFALL...MAINLY ALONG THE FRONT LATE TONIGHT THROUGH EARLY AFTERNOON THURSDAY. WIDESPREAD AVERAGE RAINFALL TOTALS OF 1 TO 2 INCHES ARE FORECAST...WITH ISOLATED TOTALS OF UP TO 4 INCHES POSSIBLE. THERE IS THE POSSIBILITY FOR THE MINOR FLOODING OF STREETS...FEEDER ROADS...SECONDARY ROADS...AND LOW WATER CROSSINGS. THE POSSIBILITY ALSO EXISTS FOR ONE OR TWO FUNNEL CLOUDS...OR AN ISOLATED TORNADO...TO FORM WITHIN THIS TROPICAL AIR MASS. HOWEVER...THE OVERALL SEVERE WEATHER THREAT WILL REMAIN MINIMAL DUE TO LIMITED ATMOSPHERIC INSTABILITY.

THE INCLEMENT WEATHER IS EXPECTED TO COME TO AN END BY EARLY THURSDAY EVENING AS THE FRONT PUSHES OFF THE COAST.