The National Weather Service says several rounds of thunderstorms are expected across Iowa today through Friday evening. There is a threat for severe weather over central and western Iowa this afternoon and evening with the potential for large hail and damaging winds. An isolated tornado is also possible. Additional storms are expected to develop over northern Iowa by Friday afternoon. Large hail, damaging winds and a few tornadoes are possible with this activity. One final line of storms will arrive Friday evening and will bring and additional severe weather threat. Storms will end Saturday as much cooler weather arrives. Sunday will remain cool with a few showers forecast over the northern half of the state. Seasonal and mainly dry conditions are expected for the start of next week.

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

TODAY AND TONIGHT:  SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON…MAINLY ALONG AND NORTH OF INTERSTATE 80. A STATIONARY FRONT WILL BE THE FOCUS FOR THUNDERSTORMS DEVELOPMENT THIS AFTERNOON AS THE ATMOSPHERE BECOME UNSTABLE. THUNDERSTORMS ARE EXPECTED TO CONTINUE INTO THE EVENING HOURS. LARGE HAIL AND DAMAGING WIND WILL BE THE PRIMARY HAZARDS.

FRIDAY: LARGE HAIL…GUSTY WINDS AND ISOLATED TORNADOES ARE ALL POSSIBLE  FROM MID FRIDAY AFTERNOON INTO FRIDAY EVENING. SEVERE
THUNDERSTORMS ARE EXPECTED TO DEVELOP FRIDAY AFTERNOON AS A STRONG STORM SYSTEM MOVES INTO THE AREA.

PARTS OF NORTHEAST NEBRASKA AND WEST CENTRAL IOWA COULD SEE THEIR
FIRST FREEZE OF THE SEASON SATURDAY NIGHT INTO SUNDAY MORNING AS
MUCH COLDER AIR DROPS SOUTH.
COUNTIES: SAC-CRAWFORD-CARROLL-AUDUBON-GUTHRIE-DALLAS-CASS-ADAIR-MADISON-ADAMS-UNION-TAYLOR-RINGGOLD

TODAY AND TONIGHT: THUNDERSTORMS ARE EXPECTED ACROSS MUCH OF THE AREA TODAY AND TONIGHT. A FEW SEVERE STORMS ARE POSSIBLE. QUARTER SIZED HAIL AND 60 MPH WINDS ARE THE PRIMARY THREATS. AN ISOLATED TORNADO IS POSSIBLE BETWEEN 3 PM AND 9 PM IN AN AREA WEST OF INTERSTATE 35 AND SOUTH OF HIGHWAY 30.

FRIDAY: ANOTHER ROUND OF STRONG TO SEVERE THUNDERSTORMS IS EXPECTED FRIDAY AFTERNOON NORTH OF HIGHWAY 30 THEN ACROSS THE ENTIRE AREA FRIDAY NIGHT. GOLF BALL SIZED HAIL AND 65 MPH WINDS WILL BE THE PRIMARY THREATS. THERE IS THE POTENTIAL FOR A FEW TORNADOES ESPECIALLY OVER NORTH CENTRAL IOWA FRIDAY AFTERNOON AND ACROSS CENTRAL IOWA LATE FRIDAY AFTERNOON AND EVENING.

SPOTTER INFORMATION STATEMENT… SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND EVENING THEN AGAIN FRIDAY AFTERNOON AND EVENING.

The Freese-Notis Forecast for the KJAN listening area and weather information for Atlantic…

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359 AM CDT THU OCT 3 2013

EARLY THIS MORNING...CLOUDY WITH A 40 PERCENT CHANCE OF THUNDERSTORMS. WARMER. SOUTH WIND NEAR 10 MPH.

TODAY…CLOUDY IN THE MORNING THEN BECOMING PARTLY SUNNY. A CHANCE OF THUNDERSTORMS THROUGH MID MORNING…THEN THUNDERSTORMS LIKELY BEFORE NOON. A CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGH IN THE LOWER 80S. SOUTH WIND 5 TO 15 MPH WITH GUSTS TO AROUND 25 MPH. CHANCE OF THUNDERSTORMS 60 PERCENT.

TONIGHT…MOSTLY CLOUDY WITH THUNDERSTORMS LIKELY THROUGH MIDNIGHT…THEN PARTLY CLOUDY WITH A CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. LOW IN THE MID 60S. SOUTH WIND 5 TO 10 MPH. CHANCE OF THUNDERSTORMS 70 PERCENT.

FRIDAY…PARTLY SUNNY WITH A 50 PERCENT CHANCE OF THUNDERSTORMS. BREEZY. HIGH IN THE LOWER 80S. SOUTH WIND 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH.

FRIDAY NIGHT…MOSTLY CLOUDY WITH THUNDERSTORMS LIKELY THROUGH MIDNIGHT…THEN PARTLY CLOUDY WITH A CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. COOLER. LOW AROUND 50. SOUTHWEST WIND 10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH. CHANCE OF THUNDERSTORMS 60 PERCENT.

SATURDAY…PARTLY SUNNY. BREEZY. MUCH COOLER. HIGH IN THE UPPER 50S. TEMPERATURE STEADY OR SLOWLY FALLING IN THE AFTERNOON. WEST WIND 15 TO 25 MPH WITH GUSTS TO AROUND 35 MPH.

SATURDAY NIGHT THROUGH SUNDAY NIGHT…PARTLY CLOUDY. LOW IN THE UPPER 30S. HIGH IN THE MID 50S.

The warm and sunny conditions around Iowa are about to change. Kurt Kotenberg is a meteorologist at the National Weather Service. “We’re going to go, basically, from 80s and sunshine the past couple days, to stormy Thursday and especially Friday, to cloudy, cold and gloomy for this weekend,” Kotenberg says.

Clouds will be on the increase across the state tonight, with some areas possibly receiving rain. A better chance for rain arrives tomorrow (Thursday). “Especially from around the Des Moines metro area and locations to the north, we’ve got a 60 to 70 percent chance (of rain),” Kotenberg says. “Heading into Friday, we have a greater chance of strong to severe thunderstorms across much of Iowa. We’ll definitely be watching that closely.”

More fall-like temperatures will arrive on Saturday. “Saturday will be pretty cloudy all day, kind of a very raw November-like day…kind of drizzling all day and cold,” Kotenberg says. “Temperatures will struggle to reach the mid to upper 50s and it will be windy also.”

Winds on Saturday will be between 15 and 25 miles per hour, according to Kotenberg. Sunday’s forecast calls for a clear to partly cloudy sky and highs mainly in the 50s.

(Radio Iowa)

(Issued by the Nat’l. Weather Service in Des Moines, 10/2/13)

THURSDAY THROUGH SATURDAY…

PERIODS OF THUNDERSTORMS ARE FORECAST FROM THURSDAY THROUGH SATURDAY. THERE IS A THREAT FOR A FEW SEVERE STORMS THURSDAY AFTERNOON AND EVENING THEN AGAIN ON FRIDAY. LARGE HAIL AND DAMAGING WINDS WILL BE THE PRIMARY THREAT. THE POTENTIAL FOR AN ISOLATE TORNADO OR TWO DOES EXIST BOTH DAYS.

SPOTTER INFORMATION STATEMENT…

SPOTTER ACTIVATION MAY BE REQUIRED THURSDAY AND FRIDAY.

ALSO….COLD WEATHER WILL MOVE OVER THE AREA THIS WEEKEND AFTER THE SYSTEM DEPARTS THE REGION. TEMPERATURES WILL FALL INTO THE 30S BY SUNDAY MORNING AND PARTS OF NORTHEAST NEBRASKA AND WEST CENTRAL IOWA COULD SEE THEIR FIRST FREEZE OF THE SEASON.

The Freese-Notis Forecast for the KJAN listening area and weather information for Atlantic…

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359 AM CDT WED OCT 2 2013

EARLY THIS MORNING…MOSTLY CLEAR. NORTHEAST WIND NEAR 5 MPH.

TODAY…PARTLY SUNNY. HIGH IN THE MID 80S. SOUTH WIND 5 TO 15 MPH.

TONIGHT…PARTLY CLOUDY. A CHANCE OF THUNDERSTORMS UNTIL EARLY MORNING…THEN THUNDERSTORMS LIKELY EARLY IN THE MORNING. WARMER. LOW IN THE MID 60S. SOUTH WIND 5 TO 10 MPH. CHANCE OF THUNDERSTORMS 60 PERCENT.

THURSDAY…THUNDERSTORMS LIKELY UNTIL LATE AFTERNOON…THEN A CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON. HIGH IN THE UPPER 70S. SOUTH WIND 5 TO 15 MPH. CHANCE OF THUNDERSTORMS 60 PERCENT.

THURSDAY NIGHT…MOSTLY CLOUDY THROUGH MIDNIGHT THEN BECOMING PARTLY CLOUDY. A 50 PERCENT CHANCE OF THUNDERSTORMS. LOW IN THE MID 60S. SOUTH WIND 5 TO 10 MPH.

FRIDAY…PARTLY SUNNY WITH A 40 PERCENT CHANCE OF THUNDERSTORMS. HIGH IN THE UPPER 70S. TEMPERATURE STEADY OR SLOWLY FALLING IN THE AFTERNOON. SOUTH WIND 5 TO 15 MPH.

FRIDAY NIGHT…MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF THUNDERSTORMS. COOLER. LOW IN THE MID 40S.

SATURDAY THROUGH SUNDAY NIGHT…PARTLY CLOUDY. BREEZY. HIGH IN THE UPPER 50S. LOW IN THE UPPER 30S.

The National Weather Service says the threat is increasing for a severe weather event on Friday. Keep up-to-date for the latest forecast over the coming days.

Main threat area highlighted below.

(Information compiled from KJAN, the officials Nat’l. Weather Service reporting site for Atlantic)

Average High: 81; Average Low: 53; Precipitation for the month: 2.84″.

Norms (mean average/Hi/Lo/Precip) for the month: High, 76; Low 51; Precip. 3.81″

Precipitation Year-to-date in Atlantic: 23.22″.