The Storm Prediction Center has issued a severe thunderstorm watch for the southern half of eastern Iowa. The Watch is in effect until 11pm tonight. Main threats appear to be strong winds and large hail.
The following is the text from the Storm Prediction Center.
REMEMBER…A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION…CONTINUE…WW 318…
DISCUSSION…WARM SECTOR TO S OF FRONTAL BOUNDARY HAS BECOME VERY
WARM AND UNSTABLE. WITH LITTLE REMAINING CINH…THUNDERSTORMS WILL
BE INCREASING IN NUMBER AND INTENSITY VICINITY AND LATER N OF
BOUNDARY. WITH MARGINAL DEEP LAYER SHEAR PRIMARY THREAT WILL BE
LARGE HAIL AND DOWNBURST DAMAGING WINDS.
AVIATION…A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 26020.