New weather warnings, Fri. night thru Sat.

[tector]

http://www.weather.com/weather/alert...546f51b2ccf8de

Issued by The National Weather Service
Louisville, KY
4:58 am EDT, Thu., Apr. 29, 2010

... AN ACTIVE WEATHER PERIOD EXPECTED FRIDAY NIGHT THROUGH SUNDAY NIGHT WITH HEAVY RAINS... STRONG TO SEVERE THUNDERSTORMS AND FLOODING POSSIBLE...

THE LATEST FORECASTS SUGGEST THAT AN ACTIVE PERIOD OF WEATHER IS EXPECTED ACROSS THE OHIO VALLEY THIS WEEKEND. THE UPPER AIR PATTERN ACROSS OUR REGION IS EXPECTED TO TAKE ON A SOUTHWEST TO NORTHEAST FLOW. IN THIS PATTERN... A LARGE AMOUNT OF WARM AND MOIST AIR WILL INFILTRATE OUR REGION FROM THE GULF OF MEXICO. THIS MOISTURE ALONG WITH AN APPROACHING FRONTAL BOUNDARY AND MULTIPLE UPPER LEVEL DISTURBANCES WILL RESULT IN SEVERAL ROUNDS OF SHOWERS AND THUNDERSTORMS.

BASED ON THE LATEST FORECASTS... IT APPEARS THAT TWO EPISODES OF ACTIVE WEATHER ARE LIKELY THIS WEEKEND. THE FIRST EPISODE WILL LIKELY OCCUR LATE FRIDAY NIGHT AND EARLY SATURDAY AS A COLD FRONT APPROACHES FROM THE WEST AND STALLS OUT ACROSS KENTUCKY ON SATURDAY. A LARGE AREA OF SHOWERS AND THUNDERSTORMS IS EXPECTED TO OVERSPREAD THE REGION DURING THIS TIME. SOME OF THE THUNDERSTORMS MAY BE ON THE STRONG SIDE WITH GUSTY WINDS AND SMALL HAIL POSSIBLE. HOWEVER... THE MAIN THREAT WITH THIS ACTIVITY WILL BE THE HEAVY RAINFALL WITH 1 TO 2 INCHES LIKELY. WITH THE FRONT STALLED OUT ACROSS THE REGION ON SATURDAY... SCATTERED THUNDERSTORMS WILL BE POSSIBLE DURING THE AFTERNOON HOURS... BUT THE MAIN CONCENTRATION OF STORMS LOOKS TO BE ACROSS SOUTH-CENTRAL KENTUCKY.

A SECOND ROUND OF SHOWERS AND THUNDERSTORMS IS EXPECTED SATURDAY NIGHT AND EARLY SUNDAY A STRONG WAVE OF LOW PRESSURE DEVELOPS ACROSS TEXAS AND ARKANSAS AND MOVES NORTHEAST ACROSS THE AREA. WIND FIELDS ARE EXPECTED TO INCREASE DURING THIS TIME FRAME AND STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED. THE MAIN SEVERE THREATS DURING THIS PERIOD WILL BE DAMAGING WINDS... LARGE HAIL AND ISOLATED TORNADOES. IN ADDITION... ANOTHER 1 TO 2 INCHES OF RAINFALL WILL BE POSSIBLE WITH THIS ACTIVITY.

TOTAL RAINFALL AMOUNTS OF 2 TO 4 INCHES ARE LIKELY THIS WEEKEND... WITH SOME AREAS PERHAPS SEEING AS MUCH AS 3 TO 5 INCHES. THIS MUCH RAINFALL IN A SHORT AMOUNT OF TIME WILL LIKELY RESULT IN SOME FLOODING PROBLEMS... ESPECIALLY IN LOW-LYING AND FLOOD PRONE AREAS. IF FUTURE FORECAST CONTINUE TO SUPPORT THESE FORECAST RAINFALL AMOUNTS... FLOOD WATCHES MAY BE ISSUED FOR THE WEEKEND.

RESIDENTS OF THE SOUTHERN INDIANA AND CENTRAL KENTUCKY ARE ENCOURAGED TO KEEP ABREAST OF THE LATEST FORECASTS AND BE PREPARED FOR SEVERE WEATHER AND POSSIBLE FLOODING PROBLEMS THIS WEEKEND.