6 APRIL 2010 SEVERE WEATHER THREAT

6 APRIL 2010 SEVERE WEATHER THREAT - TODAY AND TONITE

A WARM FRONT IS EXTENDING ACROSS SOUTHERN IOWA LATE THIS MORNING WITH RAINSHOWERS OVER NORTHERN IOWA.

LOW PRESSURE WILL MOVE ALONG THE WARM FRONT THRU CENTRAL IOWA THIS AFTERNOON AND EVENING. SEVERE WEATHER CHANCES WILL BE OVER MISSOURI AND IOWA DURING THE AFTERNOON AND EVENING. THESE STORMS ARE EXPECTED TO PRODUCE LARGE HAIL AND DAMAGING WINDS AS WELL AS ISOLATED TORNADOES...SHOWERS WILL LINGER THROUGH THE NIGHT INTO WEDNESDAY AFTERNOON.

SEVERE STORMS ARE EXPECTED TO DEVELOP THIS AFTERNOON (AFTER 3 PM) AND INTO THE EVENING HOURS. THE THREAT FOR TORNADIC SUPERCELLS IS INCREASING WITH THE GREATEST THREAT FOR A FEW STRONG TORNADOES ALONG THE HIGHWAY 30 AND INTERSTATE 80 CORRIDORS EAST OF A JEFFERSON TO STUART LINE. THIS COULD BECOME A PARTICULARLY DANGEROUS SITUATION - AS THE CELLS MOVE EAST INTO EASTERN IOWA. SECONDARY THREAT AREA FOR SUPERCELL DEVELOPMENT WOULD BE ON A LINE FROM FROM NW POW COUNTY (HARTWICK) TO VINTON (AROUND 7 PM)............

THESE STORMS WILL BE CAPABLE OF VERY LARGE HAIL - AND STRAIGHT LINE WIND GUSTS UP TO 80 MPH, AND LOCALIZED VERY HEAVY RAIN IS ALSO POSSIBLE.

Rj