NWS STORM PREDICTION CENTER NORMAN OK 1010 PM CDT SAT APR 14 2012

SEVERE THUNDERSTORM WATCH 173 IS IN EFFECT UNTIL 500 AM CDT

FOR THE FOLLOWING  IOWA COUNTIES:: FREMONT HARRISON MILLS MONONA MONTGOMERY PAGE POTTAWATTAMIE SHELBY WOODBURY.

HAIL TO 1.5 INCHES IN DIAMETER…THUNDERSTORM WIND GUSTS TO 70 MPH…AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 45 MILES WEST OF NORFOLK NEBRASKA TO 40 MILES EAST OF OMAHA NEBRASKA. F

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.

IN ADDITION, TORNADO WATCH #169 REMAINS IN EFFECT UNTIL 12-AM CDT FOR THE FOLLOWING COUNTIES IN THE KJAN LISTENING AREA: ADAIR- ADAMS-AUDUBON-CASS-GUTHRIE-MADISON-RINGGOLD-TAYLOR-UNION.

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN CASS COUNTY IN SOUTHWEST IOWA...

* UNTIL 1000 PM CDT

* AT 658 PM CDT...LAW ENFORCEMENT REPORTED FLASH FLOODING IN
ATLANTIC. THE FLASH FLOODING WAS CAUSED BY THUNDERSTORMS PRODUCING
VERY HEAVY RAIN.  THE STORMS HAD MOVED OUT OF THE WARNED AREA BUT
ADDITIONAL THUNDERSTORMS ARE POSSIBLE.

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN ADAIR COUNTY IN SOUTHWEST IOWA...
  NORTHERN MADISON COUNTY IN SOUTH CENTRAL IOWA...
  NORTHERN WARREN COUNTY IN SOUTH CENTRAL IOWA...
  SOUTHEASTERN GUTHRIE COUNTY IN WEST CENTRAL IOWA...
  SOUTHERN DALLAS COUNTY IN CENTRAL IOWA...
  SOUTHERN POLK COUNTY IN CENTRAL IOWA...

* UNTIL 130 AM CDT SUNDAY
* AT 727 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAINFALL MOVING INTO THE WARNED
  AREA. AN ADDITIONAL ONE TO THREE INCHES OF RAIN IS LIKELY ACROSS
  PARTS OF THE WARNED AREA.
				

48 PM CDT SAT APR 14 2012

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ADAMS COUNTY, SOUTHERN MADISON COUNTY, NORTHERN RINGGOLD, EASTERN TAYLOR AND UNION COUNTIES UNTIL 730 PM CDT

* AT 646 PM CDT…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS IN EXCESS OF 70 MPH. THIS STORM WAS LOCATED 5 MILES EAST OF LENOX…OR 12 MILES SOUTHWEST OF CRESTON…AND MOVING EAST AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE…CRESTON…WINTERSET…MACKSBURG…

ADAIR IA-ADAMS IA-CASS IA- 636 PM CDT SAT APR 14 2012

A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CASS…ADAMS AND SOUTHWESTERN ADAIR COUNTIES UNTIL 700 PM CDT…

AT 632 PM CDT…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 13 MILES EAST OF GRISWOLD…OR 13 MILES SOUTHEAST OF ATLANTIC…MOVING NORTHEAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE… WIOTA…PRESCOTT…MASSENA…BRIDGEWATER…ANITA AND FONTANELLE.

627 PM CDT SAT APR 14 2012

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A  SEVERE THUNDERSTORM WARNING FOR TAYLOR COUNTY UNTIL 700 PM CDT

* AT 623 PM CDT…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CLARINDA…AND MOVING EAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE…

BEDFORD…LENOX…GRAVITY…SHARPSBURG…CONWAY…ATHELSTAN…BLOCKTON AND CLEARFIELD.

CRAWFORD-CARROLL-GREENE-BOONE-STORY-MARSHALL-TAMA-AUDUBON-GUTHRIE– DALLAS-POLK-JASPER-POWESHIEK-CASS-ADAIR-MADISON-WARREN-MARION- MAHASKA-ADAMS-UNION-CLARKE-LUCAS-MONROE-WAPELLO-TAYLOR-RINGGOLD-DECATUR-WAYNE-APPANOOSE-DAVIS COUNTIES IN IOWA….

620 PM CDT SAT APR 14 2012

…THUNDERSTORMS WILL PRODUCE BRIEF AND INTENSE HEAVY RAINFALL…

IN ADDITION TO THE SEVERE WEATHER THREAT THIS EVENING…THE THUNDERSTORMS HAVE A HISTORY OF PRODUCING BRIEF…AND INTENSE…HEAVYRAINFALL. IN THE MOST EXTREME CASES…TWO TO TWO AND HALF INCHES OF RAIN HAS FALLEN IN LESS THAN ONE HOUR.

THROUGH THE REMAINDER OF THE EVENING…THE THUNDERSTORMS WILL BE CAPABLE OF PRODUCE ADDITIONAL INTENSE AND BRIEF HEAVY RAIN. THE HEAVY RAIN WILL LIKELY PRODUCE LOCAL URBAN AND SMALL STREAM FLOODING. THE URBAN FLOODING WILL CAUSE LOCAL TRAVEL PROBLEMS. IF THE STORMS TEND TO TRAIN OVER THE SAME AREA…FLASH FLOODING WILL BE POSSIBLE AND WARNINGS WILL NEED TO BE ISSUED. THIS IS POSSIBLE…BUT NOT LIKELY.

NEVER DRIVE TO FLOODED ROADS.