(Update as of 3:40-a.m. from the NWS in Des Moines)

EARLY THIS MORNING…WIDESPREAD THUNDERSTORMS. SOME THUNDERSTORMS MAY PRODUCE DAMAGING WIND…LARGE HAIL AND HEAVY RAINFALL. EAST WIND 10 TO 15 MPH WITH GUSTS TO AROUND 30 MPH. CHANCE OF THUNDERSTORMS NEAR 100 PERCENT.

TODAY…MOSTLY SUNNY. HOT AND HUMID. ISOLATED THUNDERSTORMS THROUGH MID MORNING. BREEZY. HIGH IN THE LOWER 90S. SOUTH WIND 15 TO 20 MPH WITH GUSTS TO AROUND 30 MPH. CHANCE OF THUNDERSTORMS 20 PERCENT. HIGHEST HEAT INDEX READINGS AROUND 100 IN THE AFTERNOON.

TONIGHT…PARTLY CLOUDY. WARMER. LOW IN THE MID 70S. SOUTH WIND 10 TO 15 MPH. GUSTS UP TO 30 MPH THROUGH MIDNIGHT. HIGHEST HEAT INDEX READINGS AROUND 100 THROUGH MIDNIGHT.

WEDNESDAY…MOSTLY SUNNY. HOT AND HUMID. BREEZY. HIGH IN THE LOWER 90S. SOUTH WIND 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH. HIGHEST HEAT INDEX READINGS AROUND 100 IN THE AFTERNOON.

THURSDAY…THUNDERSTORMS LIKELY. HIGH 85 TO 91. SOUTH WIND 10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH. CHANCE OF THUNDERSTORMS 60 PERCENT. HEAT INDEX READINGS AROUND 100.

FRIDAY…MOSTLY SUNNY WITH A 20 PERCENT CHANCE OF THUNDERSTORMS. HIGH IN THE MID 80S.