MONONA IA-
817 AM CDT MON SEP 8 2014

…SIGNIFICANT WEATHER ADVISORY FOR MONONA COUNTY UNTIL 900 AM CDT…

AT 814 AM CDT…DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
SMITHLAND…OR 28 MILES SOUTHWEST OF IDA GROVE…MOVING SOUTHEAST AT
35 MPH.

WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE…
ONAWA…WHITING…UTE…MAPLETON…SOLDIER…CASTANA…TURIN…
RODNEY…KENNEBEC AND LEWIS AND CLARK STATE PARK.

AREA COUNTIES: SAC-CRAWFORD-CARROLL-AUDUBON-GUTHRIE-DALLAS-CASS-ADAIR-MADISON-ADAMS-UNION-TAYLOR-RINGGOLD-
531 AM CDT MON SEP 8 2014

TODAY AND TONIGHT….NON SEVERE THUNDERSTORMS WILL SPREAD ACROSS THE AREA TODAY THROUGH THE AFTERNOON. ANOTHER ROUND OF THUNDERSTORMS IS LIKELY DURING
THE EVENING AND OVERNIGHT TONIGHT. A FEW STORMS MAY BE SEVERE WITH LARGE HAIL AND WIND BEING THE MAIN THREATS.

TUESDAY AND WEDNESDAY….A SIGNIFICANT STORM WILL AFFECT THE AREA TUESDAY AFTERNOON THROUGH EARLY WEDNESDAY MORNING. A FEW MAINLY NON SEVERE THUNDERSTORMS WILL BE POSSIBLE TUESDAY MORNING THROUGH EARLY AFTERNOON.

THUNDERSTORMS ARE LIKELY LATE TUESDAY AFTERNOON AND TUESDAY NIGHT. SEVERE THUNDERSTORMS WITH HEAVY RAINFALL…DAMAGING WINDS…TORNADOES AND A LESSER THREAT FOR LARGE HAIL WILL BE POSSIBLE IN THE LATE AFTERNOON THROUGH MID EVENING. LATE IN THE EVENING OR TUESDAY NIGHT DAMAGING WINDS AND HEAVY RAINFALL WILL BE
THE MAIN THREATS ACROSS MUCH OF THE AREA. THERE IS A POTENTIAL FOR FLASH FLOODING DUE TO HIGH RAINFALL RATES AND SOME RIVERS OR STREAMS MAY REACH BANKFULL OR PRODUCE MINOR FLOODING.

SPOTTER INFORMATION STATEMENT…

SPOTTER ACTIVATION WILL LIKELY BE NEEDED TUESDAY AFTERNOON AND EVENING OVER PORTIONS OF THE OUTLOOK AREA.

AREA COUNTIES: MONONA-HARRISON-SHELBY-POTTAWATTAMIE-MILLS-MONTGOMERY-FREMONT-PAGE

TODAY AND TONIGHT…A FEW THUNDERSTORMS ARE EXPECTED IN NORTHEAST NEBRASKA AND MAYBE WEST CENTRAL IOWA THIS MORNING. A FEW OF THESE STORMS COULD CONTAIN HAIL AND WERE DRIVEN BY AN UPPER LEVEL DISTURBANCE AND ASSOCIATED LOW LEVEL JET.

ADDITIONAL THUNDERSTORMS COULD DEVELOP OR MOVE INTO THE REGION TONIGHT…MAINLY AFTER MIDNIGHT…AS ANOTHER DISTURBANCE APPROACHES. SEVERE WEATHER WITH THESE STORMS IS UNLIKELY.

TUESDAY AND WEDNESDAY…THUNDERSTORMS ARE EXPECTED TO BECOME MORE WIDESPREAD OVER THE AREA TUESDAY AND TUESDAY EVENING AS MOISTURE AND INSTABILITY INCREASES ACROSS THE PLAINS AND A DISTURBANCE SENDS A COLD FRONT
INTO NEBRASKA. SEVERE THUNDERSTORMS ARE POSSIBLE…MAINLY FROM LATE TUESDAY AFTERNOON THROUGH TUESDAY EVENING…WITH DAMAGING WINDS AND LARGE HAIL PRIMARY HAZARDS ALONG WITH LOCALLY HEAVY RAIN. IN ADDITION…A SMALL WINDOW COULD EXIST FROM LATE AFTERNOON THROUGH MID EVENING FOR TORNADOES IF CONVECTIVE DEBRIS DOES NOT BECOME TOO WIDESPREAD ALLOWING MORE ISOLATED STORMS ALONG A POSSIBLE WARM FRONT IN SOUTHEAST OR EAST CENTRAL NEBRASKA AND
SOUTHWEST IOWA.