403 AM CDT SAT JUN 15 2013

A COUPLE AREAS OF THUNDERSTORMS ARE EXPECTED TO MOVE INTO THE OUTLOOK AREA TODAY. THE MOST LIKELY TIMEFRAME FOR SEVERE STORMS IS THIS AFTERNOON…GENERALLY SOUTH OF INTERSTATE 80. LARGE HAIL AND STRONG WINDS WILL BE THE PRIMARY HAZARDS.

SUNDAY THROUGH FRIDAY: PERIODS OF THUNDERSTORMS ARE EXPECTED THROUGH SUNDAY NIGHT AS A FRONT SLOWLY MOVES SOUTHEAST. THE THREAT OF SEVERE WEATHER PERSISTS THROUGH SUNDAY NIGHT. ADDITIONAL THUNDERSTORMS ARE POSSIBLE LATER NEXT WEEK AS WARMTH AND INSTABILITY RETURN TO THE PLAINS AHEAD OF A LARGE WEST COAST UPPER LOW THAT WILL BE MOVING INLAND.

.SPOTTER INFORMATION STATEMENT…

STORM SPOTTERS MAY BE NEEDED ACROSS FAR SOUTHEAST NEBRASKA AND SOUTHWEST IOWA THIS AFTERNOON.

**FLASH FLOOD WATCH in effect through Saturday evening** (forecast updated 3:57-a.m./NWS – Des Moines)
Today: Showers and thunderstorms likely, mainly after 3pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 83. South wind 5 to 8 mph becoming west in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tonight: Scattered showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 64. West southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday: A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 84. Light and variable wind becoming east southeast 5 to 7 mph in the morning.
Sunday Night: A 40 percent chance of showers and thunderstorms, mainly after 7pm. Mostly cloudy, with a low around 63. Light south southeast wind. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday: Mostly sunny, with a high near 81. Light west wind becoming north northwest 5 to 10 mph in the afternoon.
Monday Night: Mostly clear, with a low around 60.

Tuesday: Sunny, with a high near 79.

338 AM CDT SAT JUN 15 2013

…HEAVY RAINS POSSIBLE INTO SATURDAY…

AREA COUNTIES: SAC-CRAWFORD-CARROLL-GREENE-AUDUBON-GUTHRIE-DALLAS-CASS-ADAIR-MADISON-ADAMS-UNION-TAYLOR-RINGGOLD. …FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING…

THE FLASH FLOOD WATCH CONTINUES THROUGH THIS EVENING. RECENT RAINFALL HAS PRODUCED SEVERAL INCHES OF RAINFALL ACROSS MUCH OF THE AREA…AND ADDITIONAL THUNDERSTORMS ARE EXPECTED TO PASS THROUGH THE WATCH AREA LATER TODAY. AMPLE MOISTURE WILL BE AVAILABLE AND THESE STORMS WILL BE CAPABLE OF PRODUCING HEAVY RAINFALL. RAINFALL AMOUNTS OF ONE TO THREE INCHES WILL BE POSSIBLE BY LATE THIS AFTERNOON WITH ISOLATED HIGHER AMOUNTS.

GIVEN THE SATURATED CONDITIONS…EXCESSIVE RUNOFF MAY BECOME A PROBLEM VERY QUICKLY LEADING TO FLASH FLOODING. IN ADDITION, THE RUNOFF WILL EVENTUALLY PASS INTO LARGE STREAMS AND RIVERS WHICH MAY LEAD TO RIVER FLOODING. SIGNIFICANT AND LIFE THREATENING FLASH FLOODING IS POSSIBLE.

PERSONS LIVING IN FLOOD PRONE AREAS SHOULD BE PREPARED TO TAKE ACTION. DO NOT ATTEMPT TO CROSS FLOODED ROADWAYS! AS LITTLE AS 6 INCHES OF RUNNING WATER CAN SWEEP A VEHICLE OFF THE ROAD. IN ADDITION…SIGNIFICANT RIVER FLOODING IS POSSIBLE AFTER THIS EVENT.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED.

FREMONT IA-PAGE IA-MILLS IA-MONTGOMERY IA-CASS NE-OTOE NE-
 1007 PM CDT FRI JUN 14 2013
 
 …SIGNIFICANT WEATHER ADVISORY FOR FREMONT…PAGE…SOUTHEASTERN
 MILLS…MONTGOMERY…SOUTHEASTERN CASS AND NORTHEASTERN OTOE COUNTIES
 UNTIL 1100 PM CDT…
 
 AT 953 PM CDT…NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
 LINE OF STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM GRISWOLD TO
 6 MILES SOUTHEAST OF MALVERN TO 7 MILES NORTHWEST OF NEBRASKA CITY…
 OR ALONG A LINE EXTENDING FROM 74 MILES NORTHWEST OF STANBERRY TO 34
 MILES SOUTHEAST OF OMAHA TO 37 MILES EAST OF LINCOLN…AND MOVING
 EAST AT 35 MPH.
 
 WIND GUSTS UP TO 45 MPH WILL BE POSSIBLE WITH THESE STORMS.
 
 LOCATIONS IMPACTED INCLUDE…
 NEBRASKA CITY…RED OAK…CLARINDA…SHENANDOAH…VILLISCA…
 SIDNEY…HAMBURG…ESSEX…STANTON…FARRAGUT…EMERSON…ELLIOTT…
 RIVERTON…UNION…COIN…TABOR…COLLEGE SPRINGS…THURMAN…
 RANDOLPH AND SHAMBAUGH.

1000 PM CDT FRI JUN 14 2013
 
 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A
 
 * SEVERE THUNDERSTORM WARNING FOR…
   DALLAS COUNTY IN CENTRAL IOWA…
   EASTERN GUTHRIE COUNTY IN WEST CENTRAL IOWA…
 
 * UNTIL 1045 PM CDT
 
 * AT 957 PM CDT…A SEVERE THUNDERSTORM WAS LOCATED NEAR ADEL…AND
   MOVING EAST AT 25 MPH.
 
   HAZARD…QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.
 
   SOURCE…RADAR INDICATED.
 
   IMPACT…HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
            ROOFS…SIDING AND TREES.
 
 * LOCATIONS IMPACTED INCLUDE…
   DALLAS CENTER…WAUKEE…WOODWARD…VAN METER…MINBURN AND BOUTON.
 
 THIS INCLUDES INTERSTATE 80 BETWEEN MILE MARKERS 100 AND 120.

11:01-p.m.: 60-mph thunderstorm wind gust 4-miles south of Macksburg in Madison County.

10:45-p.m.: Thunderstorm wind damage n/nw of Stuart. Several 6-to 8-inch diameter tree limbs down.

10:30-p.m.: 5.2-inches of rain reported 1 mile w/nw of Coon Rapids (via social media), in Carroll County.

10:12-p.m.: Flash Flooding in Bayard. Emergency Management reported 6-to 8-inches of water over several streets in the Guthrie County town, along with water over the underpass of Highway 25 in Bayard.

9:58-p.m.: Flash Flooding 2-miles east of Coon Rapids in Carroll County reported by law enforcement. Water over A Avenue along the Carroll/Guthrie County line, and portions of Timber Avenue.

9:49-p.m.: 3/4-inch diameter hail N/NE of Panora in Guthrie County.

9:40-p.m.: 50-mph+ winds blew a garage roof off in the Carroll County community of Halbur, and 2-to 6″ diameter tree limbs down.

9:35-p.m.: Thunderstorm winds gustiung up to 67-mph at the Carroll Airport.

9:21-p.m. 58-mph wind gust recorded 2 miles w/nw of Carroll.

9:10-p.m.: 1-inch diameter hail reported N/NW of Stuart in Guthrie County; 60-mph wind gust 2-miles northwest of Little Sioux in Harrison County.                     

9:07-p.m.: Thunderstorm winds up to 59mph near Crescent, in Pottawattamie County.

9:00-p.m.: Marbled-sized hail near Ralston, in Carroll County.

8:33-p.m.: Quarter-sized hail 4-miles west of Bayard in Guthrie County.

8:24-p.m.: Quarter-sized hail 2-miles west of Coon Rapids in Carroll County.

4:15-p.m. Quarter-sized hail 4-miles W/NW of the Carroll Airport.

(Source: Law Enforcement/Trained Spotters via National Weather Service)

POTTAWATTAMIE IA-DOUGLAS NE-SARPY NE-
 943 PM CDT FRI JUN 14 2013
 
 …SPECIAL WEATHER STATEMENT…
 
 AT 930 PM CDT…DOPPLER RADAR INDICATED OVER 2 INCHES OF RAIN HAVE
 FALLEN IN PARTS OF THE OMAHA-COUNCIL BLUFFS METRO AREA THIS EVENING.
 
 POOR DRAINAGE AREAS ARE EXPECTED TO HAVE FLOODING PROBLEMS THROUGH
 THE METRO AREA. 
 
 PRECAUTIONARY/PREPAREDNESS ACTIONS…
 
 DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.

941 PM CDT FRI JUN 14 2013
 
 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A
 
 * SEVERE THUNDERSTORM WARNING FOR…
   NORTHEASTERN AUDUBON COUNTY IN WEST CENTRAL IOWA…
   WESTERN BOONE COUNTY IN CENTRAL IOWA…
   SOUTHEASTERN CARROLL COUNTY IN WEST CENTRAL IOWA…
   NORTHWESTERN DALLAS COUNTY IN CENTRAL IOWA…
   GREENE COUNTY IN WEST CENTRAL IOWA…
   NORTHERN GUTHRIE COUNTY IN WEST CENTRAL IOWA…
 
 * UNTIL 1030 PM CDT
 
 * AT 938 PM CDT…A SEVERE THUNDERSTORM WAS LOCATED 9 MILES EAST OF
   COON RAPIDS…AND MOVING EAST AT 45 MPH.
 
   HAZARD…QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.