352 AM CDT FRI MAY 8 2015

EARLY THIS MORNING…MOSTLY CLOUDY. NORTHWEST WIND 5 TO 15 MPH.

TODAY…MOSTLY CLOUDY. HIGH IN THE UPPER 60S. NORTH WIND 5 TO 10 MPH.

TONIGHT…MOSTLY CLOUDY. A 20 PERCENT CHANCE OF THUNDERSTORMS EARLY IN THE MORNING. LOW IN THE MID 50S. NORTHEAST WIND 5 TO 10 MPH.

SATURDAY…PARTLY SUNNY. A 20 PERCENT CHANCE OF THUNDERSTORMS UNTIL LATE AFTERNOON. HIGH IN THE MID 70S. EAST WIND 5 TO 15 MPH.

SATURDAY NIGHT…THUNDERSTORMS. LOW AROUND 60. SOUTHEAST WIND 10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH. CHANCE OF THUNDERSTORMS 90 PERCENT.

SUNDAY…MOSTLY CLOUDY WITH A CHANCE OF THUNDERSTORMS IN THE MORNING…THEN THUNDERSTORMS LIKELY IN THE AFTERNOON. BREEZY. HIGH IN THE UPPER 70S. SOUTH WIND 10 TO 20 MPH WITH GUSTS TO AROUND 30 MPH. CHANCE OF THUNDERSTORMS 70 PERCENT.

SUNDAY NIGHT…MOSTLY CLOUDY. A CHANCE OF THUNDERSTORMS THROUGH MIDNIGHT…THEN A CHANCE OF SHOWERS AFTER MIDNIGHT. BREEZY…COOLER. LOW AROUND 50. CHANCE OF PRECIPITATION 50 PERCENT.

MONDAY…PARTLY SUNNY. BREEZY…COOLER. HIGH IN THE UPPER 50S.

733 PM CDT THU MAY 7 2015

SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN POTTAWATTAMIE, WESTERN MONTGOMERY,SOUTHERN MILLS,NORTHWESTERN PAGE…NORTHERN FREMONT…COUNTIES UNTIL 830 PM CDT…

AT 732 PM CDT…DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR 30 MILES SOUTH OF OMAHA…MOVING NORTHEAST AT 40 MPH. HALF INCH HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE…

NEBRASKA CITY…RED OAK…MALVERN…STANTON…EMERSON…UNION… TABOR…THURMAN…RANDOLPH…HASTINGS…IMOGENE…COBURG AND CAMP CATRON.

THIS INCLUDES THE FOLLOWING HIGHWAYS…

HIGHWAY 34 IN IOWA BETWEEN MILE MARKERS 17 AND 42.

HIGHWAY 59 IN IOWA BETWEEN MILE MARKERS 19 AND 34.

HIGHWAY 75 IN NEBRASKA BETWEEN MILE MARKERS 51 AND 59.

INTERSTATE 29 BETWEEN MILE MARKERS 12 AND 27.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM…AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

716 PM CDT THU MAY 7 2015

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* FLOOD WARNING FOR…NORTHWESTERN MONTGOMERY COUNTY IN SOUTHWESTERN IOWA…EASTERN MILLS COUNTY IN SOUTHWESTERN IOWA… UNTIL 115 AM CDT FRIDAY

* AT 714 PM CDT…A GAUGE ON INDIAN CREEK NEAR EMERSON WAS REPORTING LEVELS OVER FLOOD STAGE. RADAR ESTIMATED UP TO 4 INCHES OF THIS RAIN IN THAT AREA FROM EARLIER STORMS. ADDITIONAL STORMS COULD MOVE IN THIS EVENING.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE…EMERSON.

529 PM CDT THU MAY 7 2015

THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN CASS COUNTY IS CANCELLED…THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS…AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

THEREFORE THE WARNING HAS BEEN CANCELLED. HOWEVER SMALL HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM. TO REPORT SEVERE WEATHER…CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE DES MOINES.

522 PM CDT THU MAY 7 2015

A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR SOUTHWESTERN CASS COUNTY…

AT 520 PM CDT…A SEVERE THUNDERSTORM WAS LOCATED 6 MILES EAST OF GRISWOLD…OR 13 MILES SOUTH OF ATLANTIC…MOVING EAST AT 25 MPH. HAZARD…QUARTER SIZE HAIL.

SOURCE…RADAR INDICATED.

IMPACT…DAMAGE TO VEHICLES IS EXPECTED.

THIS SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF SOUTHWESTERN CASS COUNTY…INCLUDING THE FOLLOWING LOCATIONS…CUMBERLAND…GRISWOLD PARK AND COLD SPRINGS STATE PARK.

456 PM CDT THU MAY 7 2015

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN CASS COUNTY IN SOUTHWESTERN IOWA…UNTIL 545 PM CDT

* AT 456 PM CDT…A SEVERE THUNDERSTORM WAS LOCATED NEAR ELLIOTT…OR 19 MILES SOUTHWEST OF ATLANTIC…MOVING NORTHEAST AT 25 MPH.

HAZARD…60 MPH WIND GUSTS AND HALF DOLLAR SIZE HAIL. SOURCE…RADAR INDICATED. At 5-p.m. law enforcement reported pea sized hail in Griswold.

IMPACT…HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO ROOFS…SIDING AND TREES.

* THIS SEVERE THUNDERSTORM WILL BE NEAR…GRISWOLD AROUND 510 PM CDT. OTHER LOCATIONS IMPACTED BY THIS SEVERE THUNDERSTORM INCLUDE CUMBERLAND…GRISWOLD PARK AND COLD SPRINGS STATE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING.

445 PM CDT THU MAY 7 2015

A STRONG THUNDERSTORM IS HEADING INTO SOUTHWEST CASS COUNTY.

AT 442 PM CDT…DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7 MILES SOUTHEAST OF MACEDONIA…OR 24 MILES SOUTHWEST OF ATLANTIC… MOVING NORTHEAST AT 20 MPH.

NICKEL SIZE HAIL AND WINDS IN EXCESS OF 45 MPH WILL BE POSSIBLE WITH THIS STORM. THIS STRONG THUNDERSTORM WILL BE NEAR…GRISWOLD AROUND 515 PM CDT.

OTHER LOCATIONS IMPACTED BY THIS STORM INCLUDE LEWIS…GRISWOLD PARK AND COLD SPRINGS STATE PARK.

THIS STORM MAY INTENSIFY…SO BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS…AS WELL AS LOCAL CABLE TV OUTLETS…FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

441 PM CDT THU MAY 7 2015

THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…SOUTHEASTERN POTTAWATTAMIE COUNTY IN SOUTHWESTERN IOWA…NORTHERN MONTGOMERY COUNTY IN SOUTHWESTERN IOWA…UNTIL 515 PM CDT

* AT 441 PM CDT…A SEVERE THUNDERSTORM WAS LOCATED NEAR ELLIOTT…OR 23 MILES SOUTHWEST OF ATLANTIC…MOVING NORTHEAST AT 20 MPH.

HAZARD…60 MPH WIND GUSTS AND QUARTER SIZE HAIL.

SOURCE…RADAR INDICATED.

IMPACT…HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO ROOFS…SIDING AND TREES.

* LOCATIONS IMPACTED INCLUDE…ELLIOTT…GRANT AND FARM CREEK PUBLIC WILDLIFE AREA. THIS INCLUDES HIGHWAY 59 IN IOWA NEAR MILE MARKER 41.

PRECAUTIONARY/PREPAREDNESS ACTIONS… FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING.

1033 AM CDT THU MAY 7 2015

The National Weather Service in Omaha has issued a flood warning for the following river in Iowa and Nebraska: Missouri River at Plattsmouth, NE., affecting Mills County (IA) and Cass County (NE).
* The Flood Warning is in effect from late tonight to Saturday afternoon…or until the warning is  cancelled.
* At 10:00 AM Thursday the stage was 20.8 feet…or 5.2 feet below flood stage.
* Flood stage is 26.0 feet.
* The river is forecast to rise to near 27.4 feet by tomorrow evening.
* Impact…at 27.0 feet…Minor flooding is occurring in the parking  lots near the gauge site and boat ramp. In addition, a private  camping area just upstream of the gauge site begins to flood.

TODAY AND TONIGHT: THUNDERSTORMS ARE EXPECTED OFF AND ON TODAY INTO TONIGHT. THOUGH THE POTENTIAL FOR SEVERE WEATHER IS LOW…A FEW STORMS MAY PRODUCE DAMAGING WINDS AND LARGE HAIL DURING THE AFTERNOON AND EVENING HOURS. LOCALLY HEAVY RAINFALL IS ALSO POSSIBLE.

FRIDAY THROUGH WEDNESDAY: THUNDERSTORM CHANCES WILL PERSIST MAINLY ACROSS SOUTHERN IOWA FROM FRIDAY THROUGH SATURDAY. THE THREAT OF SEVERE WEATHER IS LOW DURING THIS TIME…BUT SOME STORMS COULD PRODUCE LOCALLY HEAVY RAIN.

THUNDERSTORMS ARE LIKELY FROM SATURDAY NIGHT THROUGH SUNDAY
NIGHT. SEVERE WEATHER IS EXPECTED SUNDAY AFTERNOON AND NIGHT WITH A SIGNIFICANT EVENT POSSIBLE. LARGE HAIL…DAMAGING WINDS…AND A FEW TORNADOES WILL BE POSSIBLE DURING THIS TIME.

SPOTTER INFORMATION STATEMENT…
SPOTTER ACTIVATION MAY BE NEEDED SUNDAY AFTERNOON AND EVENING.