Flash Flood Warning 9, NWS Aberdeen, SD

146 
WGUS73 KABR 270024
FFSABR

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
724 PM CDT SAT JUN 26 2010

SDC025-029-039-057-270315-
/O.CON.KABR.FF.W.0009.000000T0000Z-100627T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLARK SD-CODINGTON SD-DEUEL SD-HAMLIN SD-
724 PM CDT SAT JUN 26 2010

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR
HAMLIN...DEUEL...SOUTHERN CODINGTON AND SOUTHEASTERN CLARK
COUNTIES...

AT 716 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS IN DEUEL COUNTY 
REPORTED AREA ROADS UNDER WATER DUE TO THE HEAVY RAIN. RADAR 
ESTIMATES RANGE FROM 2 TO 4 INCHES ACROSS SOUTHERN DEUEL...HAMLIN 
AND SOUTHERN CLARK COUNTIES.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO 
THOMAS...BRYANT...ESTELLINE...CLEAR LAKE...BRANDT AND WILLOW LAKE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 800 PM CDT SATURDAY EVENING
FOR NORTHEAST SOUTH DAKOTA. A SEVERE THUNDERSTORM WATCH ALSO REMAINS
IN EFFECT UNTIL 1000 PM CDT SATURDAY EVENING FOR NORTH CENTRAL SOUTH
DAKOTA.

&&

LAT...LON 4453 9648 4454 9783 4455 9784 4484 9752
      4497 9688 4497 9644 4455 9645

$$

065 
WGUS73 KABR 270313
FFSABR

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
1013 PM CDT SAT JUN 26 2010

SDC025-029-039-057-270323-
/O.EXP.KABR.FF.W.0009.000000T0000Z-100627T0315Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLARK SD-CODINGTON SD-DEUEL SD-HAMLIN SD-
1013 PM CDT SAT JUN 26 2010

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1015 PM CDT FOR HAMLIN...
DEUEL...SOUTHERN CODINGTON AND SOUTHEASTERN CLARK COUNTIES...

LAT...LON 4453 9648 4454 9783 4455 9784 4484 9752
      4497 9688 4497 9644 4455 9645

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ABERDEEN SD
119 PM CDT SAT JUN 26 2010

.SHORT TERM...TONIGHT THROUGH MONDAY NIGHT
MAIN FCST CHALLENGE THIS AFTERNOON DEALS WITH THE SEVERE STORM
THREAT AND HEAVY RAIN CHANCES FOR LATE THIS AFTERNOON INTO THE
EVENING AS WELL AS PRECIP CHANCES ON SUNDAY.

A WARM FRONT OVER IOWA WILL GRADUALLY LIFT NORTH AND EAST THIS
AFTERNOON CREATING A BOUNDARY FOR CONVECTION THAT STRETCHES INTO
THE SOUTHEASTERN PART OF THE CWA. A SHORTWAVE MOVING THROUGH THIS
MORNING HELPED TO SET OFF SOME SHOWERS AND THUNDERSTORMS. THE
ADDITIONAL CLOUD COVER HAS KEPT THE TEMPERATURES IN THE NORTHERN
PART OF THE CWA FROM RISING RAPIDLY THOUGH THE ATMOSPHERE REMAINS
JUICY WITH DEWPOINTS IN THE 60S AND 70S. SO THERE ARE A FEW WHAT
IFS TO THE FORECAST THIS EVENING. WHILE MORNING CONVECTION MAY
HAVE HELPED STABILIZE THE CWA SOMEWHAT A FEW OF THE SOUTHERN
COUNTIES HAVE STAYED FAIRLY CLEAR...LIKE LYMAN AND HAND...WHICH
MAY SET THE STAGE FOR SEVERE STORM FORMATION WITH THE COLD FRONT
PASSAGE.

THE TURNING WITH THE WARM FRONT IS CREATING THE POSSIBILITY OF
TORNADOS INTO EARLY EVENING IN THE SE CWA AND A WATCH IS IN
EFFECT. THIS MAY BE A LITTLE FAR NORTH FOR MUCH ACTIVITY AS SIOUX
FALLS CWA LOOKS MUCH MORE FAVORABLE FOR INITIATION. AS THE COLD
FRONT MOVES THROUGH EXPECT MORE DEVELOPMENT ESPECIALLY OVER THE
SOUTHERN AND EASTERN CWA. 3500 TO 4500 J/KG CAPE AND 35 TO 50 KTS
OF SHEAR WILL HELP SUPERCELLS FORM.

MODELS ARE IN FAIR AGREEMENT AS TO THE POTENTIAL. HOWEVER TIMING
IS ANOTHER ISSUE. THE NAM BLASTS THE COLD FRONT THROUGH AND CLEARS
OUT ANY PRECIP BEHIND..WHILE THE GFS PULLS THROUGH ANOTHER
SHORTWAVE BY MORNING GENERATING MORE QPF ACROSS THE REGION. THE
ECMWF FALLS SOMEWHERE IN BETWEEN. THEREFORE INCREASED POPS THROUGH
THE NIGHT ALTHOUGH THERE WILL PROBABLY BE A BREAK AND KEPT THE
SLIGHT CHANCES IN THROUGH SUNDAY MORNING.

BY MONDAY A RIDGE BUILDS OVER THE AREA FOR A WELCOME REGIME
CHANGE. LOOK FOR WARM AND DRY CONDITIONS MOST OF NEXT WEEK.

.LONG TERM...TUESDAY THROUGH SATURDAY.
NO MAJOR CHANGES TO CURRENT FORECAST. MEDIUM RANGE MODELS IN
FAIRLY DECENT AGREEMENT. UPPER RIDGE WILL CONTINUE TO SLIDE INTO
AREA BRINGING MUCH WARMER TEMPS AND DRY CONDITIONS. RIDGE SHOWS
SIGNS OF WEAKENING AND SHIFTING EAST BY FRIDAY NIGHT AND
SATURDAY. SMALL CHANCES OF THUNDERSTORMS LOOKS GOOD FOR THESE
TIME PERIODS AS FLOW BECOMES MORE SOUTHWESTERLY AND COLD FRONT
ENTERS AREA BY THEN.

&&

.AVIATION...
18Z TAFS FOR THE KABR...KATY...KPIR AND KMBG TERMINALS

SCATTERED THUNDERSTORMS WILL CONTINUE TODAY ACROSS MOST OF THE
REGION. A FEW STORMS WILL BE SEVERE WITH STRONG WINDS AND LARGE
HAIL. LOCAL MVFR CIGS CAN BE EXPECTED ALONG WITH LOCALLY STRONG
GUSTY WINDS. THUNDERSTORMS WILL SLOWLY DIMINISH AFTER MIDNIGHT.

&&

.ABR WATCHES/WARNINGS/ADVISORIES...
SD...NONE.
MN...NONE.
&&

SHORT TERM...WISE
LONG TERM...SCARLETT
AVIATION...KRAMLICH

WEATHER.GOV/ABERDEEN

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ABERDEEN SD
336 AM CDT SAT JUN 26 2010

SDZ003>005-009-010-015-016-270845-
CORSON-CAMPBELL-MCPHERSON-WALWORTH-EDMUNDS-DEWEY-POTTER-
336 AM CDT SAT JUN 26 2010 /236 AM MDT SAT JUN 26 2010/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
SOUTH DAKOTA.

.DAY ONE...TODAY AND TONIGHT
SCATTERED SHOWERS AND THUNDERSTORMS ARE POSSIBLE EARLY THIS
AFTERNOON AS A COLD FRONT BEGINS TO PUSH EAST ACROSS THE REGION.
BY MIDNIGHT THE STORMS WILL HAVE PUSHED EAST INTO MINNESOTA.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
THERE IS A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS SUNDAY
AFTERNOON. AT THIS POINT THEY ARE NOT EXPECTED TO BECOME SEVERE.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE NEEDED FOR COUNTIES EAST OF THE MISSOURI
RIVER BY 3PM CDT.

SDZ017-033>037-045-048-051-270845-
FAULK-STANLEY-SULLY-HUGHES-HYDE-HAND-JONES-LYMAN-BUFFALO-
336 AM CDT SAT JUN 26 2010 /236 AM MDT SAT JUN 26 2010/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL SOUTH
DAKOTA AND NORTH CENTRAL SOUTH DAKOTA.

.DAY ONE...TODAY AND TONIGHT
AN APPROACHING COLD FRONT WILL AGAIN SET THE STAGE FOR POSSIBLE
SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING. THE STORMS ARE
EXPECTED TO PUSH EAST OF THE AREA BY MIDNIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
NO THUNDERSTORMS ARE FORECAST.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE NEEDED FOR COUNTIES ALONG AND EAST OF
THE MISSOURI RIVER BY 3PM CDT.

MNZ039-046-SDZ006>008-011-018>023-270845-
TRAVERSE-BIG STONE-BROWN-MARSHALL-ROBERTS-DAY-SPINK-CLARK-
CODINGTON-GRANT-HAMLIN-DEUEL-
336 AM CDT SAT JUN 26 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL
MINNESOTA AND NORTHEAST SOUTH DAKOTA.

.DAY ONE...TODAY AND TONIGHT
A STRONG COLD FRONT..COUPLED WITH AN UPPER LEVEL DISTURBANCE
SLIDING THROUGH...WILL SET THE STAGE FOR THUNDERSTORM DEVELOPMENT
THIS AFTERNOON AND EVENING. SOME OF THE STORMS COULD BECOME SEVERE
WITH VERY HEAVY RAIN POSSIBLE. THE STORMS ARE EXPECTED TO MOVE
EAST OF THE AREA BY MIDNIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
THERE IS A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS TO AGAIN
DEVELOP ON SUNDAY. AT THIS TIME IT APPEARS THAT IF ANY STORMS DO FORM...
THEY WILL NOT BECOME SEVERE.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE NEEDED AFTER 4PM THIS AFTERNOON.

HINTZ

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
355 PM CDT SAT JUN 26 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0355 PM     HAIL             4 W ESTELLINE           44.58N 96.98W
06/26/2010  E1.00 INCH       HAMLIN             SD   TRAINED SPOTTER

&&

KGILLE

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
404 PM CDT SAT JUN 26 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0402 PM     HAIL             2 S LAKE NORDEN         44.55N 97.21W
06/26/2010  E1.25 INCH       HAMLIN             SD   TRAINED SPOTTER

            QUARTER TO HALF DOLLAR SIZE HAIL.

&&

KGILLE

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
408 PM CDT SAT JUN 26 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0402 PM     HAIL             4 N ESTELLINE           44.63N 96.90W
06/26/2010  E0.88 INCH       HAMLIN             SD   TRAINED SPOTTER

            DIME TO NICKEL WITH VERY HEAVY RAIN.

&&

KGILLE

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
450 PM CDT SAT JUN 26 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0430 PM     HAIL             2 N BRANDT              44.69N 96.62W
06/26/2010  E1.00 INCH       DEUEL              SD   PUBLIC

&&

KGILLE

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
454 PM CDT SAT JUN 26 2010

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0445 PM     HEAVY RAIN       4 ENE DANFORTH          44.28N 98.80W
06/26/2010  E2.40 INCH       HAND               SD   TRAINED SPOTTER

            2.4 INCHES OF RAIN IN 30 MINUTES WITH FOODING REPORTED.

&&

KGILLE

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
541 PM CDT SAT JUN 26 2010

SDZ003-015-262315-
CORSON-DEWEY-
441 PM MDT SAT JUN 26 2010

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR CENTRAL CORSON
AND NORTHWESTERN DEWEY COUNTIES UNTIL 515 PM MDT...

AT 436 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 1 MILE SOUTH OF KLEIN RANCH...OR 30 MILES
SOUTHWEST OF MCLAUGHLIN...MOVING EAST AT 30 MPH.

A FEW LOCATIONS IN THE ADVISORY INCLUDE FIRESTEEL...TIMBER LAKE...
BULLHEAD AND LITTLE EAGLE.

PENNY TO NICKEL SIZE HAIL IS EXPECTED WITH THIS STORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. IF YOU CAN HEAR
THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM MDT
SATURDAY EVENING FOR NORTH CENTRAL SOUTH DAKOTA.

&&

CONNELLY