6 APRIL 2010 EXTENDED FORECAST

6 APRIL 2010 EXTENDED FORECAST

MORE SHOWERS AND THUNDERSTORMS THRU THE DAY - EXPECT ANOTHER ROUND OF SEVERE THUNDERSTORMS BY MID AFTERNOON.................

A NEW ROUND OF THUNDERSTORMS DEVELOPED OVER SOUTHEAST NEBRASKA AND SOUTHWEST IOWA AROUND MIDNIGHT LAST NIGHT. THE STORMS MOVED NORTHEAST ACROSS THE STATE THROUGH THE NIGHT. BY EARLY THIS MORNING MOST OF THE STRONG STORMS HAD MOVED TO THE FAR EASTERN COUNTIES WITH SCATTERED LIGHTER STORMS OVER THE REST OF THE NORTH HALF OF IOWA.

OVERNIGHT...THUNDERSTORMS PRODUCED PEA TO NICKEL SIZE HAIL OVER PARTS OF SOUTHWEST INTO CENTRAL IOWA. GOLF BALL SIZE HAIL FELL IN DALLAS COUNTY IN THE PERRY AREA. SHORTLY BEFORE DAWN ONE AREA OF THUNDERSTORMS PRODUCES HIGH WINDS. THESE INCLUDED A GUST TO 76 MPH IN THE CEDAR RAPIDS AREA...61 MPH IN ALTOONA...AND 56 MPH IN TAMA. IN ADDITION...THE STORMS PRODUCED HEAVY RAINFALL IN PARTS OF SOUTHWEST AND CENTRAL IOWA. SEVERAL LOCATIONS REPORTED AROUND AN INCH OF RAINFALL...WITH THE HEAVIEST IN THE ATLANTIC ARE AT ABOUT ONE AND THREE QUARTERS OF AN INCH. WINDS HAD INCREASED TO 15 TO 30 MPH.

A WARM FRONT IS LOCATED OVER SOUTHERN IOWA - A WARM FRONT EXTENDING OUT OF A LOW IN CENTRAL IN KANSAS IS SITUATED FROM THE SW CORNER OF IOWA - TO WINTERSET - TO KNOXVILLE - TO JUST NORTH OF OTTUMWA - TO SOUTH OF CEDAR RAPIDS.....EXPECT THUNDERSTORMS TO DEVELOP LATER THIS MORNING IN SW IOWA AND MOVE ALONG THE FRONT TO THE EAST.

LOW PRESSURE OVER NORTH CENTRAL KANSAS WILL MOVE NORTHEAST INTO CENTRAL IOWA THIS AFTERNOON...AND THEN TO THE EAST OF IOWA LATER TONIGHT. A WARM FRONT EXTENDING NORTHEAST FROM THE LOW WILL LIFT NORTH THIS MORNING...THEN TURN SOUTHEAST AS A COLD FRONT THIS AFTERNOON AND TONIGHT.

THE LOW AND WARM FRONT WILL BRING SHOWERS AND THUNDERSTORMS TO A LARGE PART OF THE UPPER MIDWEST TODAY INTO WEDNESDAY. SEVERE WEATHER IS LIKELY THIS AFTERNOON AND EVENING OVER CENTRAL AND EASTERN IOWA (EAST OF I-35). THE SEVERE WEATHER WILL EXIT IOWA BY EARLY EVENING....HEAVY RAINFALL IS ALSO POSSIBLE WITHIN THE THE THUNDESTORMS.

TODAY 6TH - MOSTLY CLOUDY - WINDY - SHOWERS WITH ISOLATED THUNDERSTORMS - (SEVERE THUNDERSTORMS BETWEEN 2 AND 3 PM) TEMP 75

WED 7TH - SHOWERS WITH ISOLATED THUNDER THRU THE DAY - WINDY - TEMP 55

THURSDAY THRU SUN 8TH-11TH - PARTLY CLOUDY BECOMMING MOSTLY CLOUDY - TEMP LOW 60'S - TEMPS HIGH 50'S/LOW 60'S - SHOWERS AND THUNDER AFTERNOON/EVENING SATURDAY AND SUNDAY - TEMP MID 50'S CLIMBING TO NEAR 70 BY THE WEEKEND

MON THRU FRIDAY 12TH-16TH - MOSTLY CLOUDY - SHOWERS/THUNDER (POSSIBLE STRONG STORMS TUES/WED) - WINDY

SAT THRU THURS 17TH-22TH - PARTLY CLOUDY

FRIDAY 24TH - SHOWERS/THUNDER