Severe Thunderstorm Warning 126, NWS Aberdeen, SD

AREA FORECAST DISCUSSION FOR CENTRAL/NORTHCENTRAL AND NORTHEAST
SOUTH DAKOTA AND WEST CENTRAL MINNESOTA
NATIONAL WEATHER SERVICE ABERDEEN SD
300 AM CDT SAT AUG 5 2000

SFC LOW IN CENTRAL SD WITH WARM FRONT NORTH INTO NORTH DAKOTA WILL
CONT TO SLIDE EAST DURING MORNING HOURS...TAKING MOST OF PCPN WITH
IT. ALL MODELS SHOW THAT COLD FRONT SHOULD MOVE THROUGH ERN CWA BY
18Z...WHICH WOULD BE TOO EARLY FOR STRONG TSRA TO DEVELOP. APPEARS
THAT HEAVIEST ACTIVITY WILL BE IN MN TONIGHT. CROSS SECTIONS ACROSS
NRN CWA SHOW THAT ABUNDANT LOW LEVEL MOIST WILL REMAIN EVEN AFTER
COLD FRONTAL PASSAGE. WILL HAVE TO TRIM HIGHS DOWN A FEW DEGREES
ACROSS THE NE TO ACCOUNT FOR MORE MOIST AND CLOUDS. RH PATTERNS DO
SHOW THAT SOME SUN SHOULD BEGIN TO PEAK OUT IN THE KABR AREA LATE
THIS AFTERNOON...WITH KATY STAYING CLOUD LOCKED THROUGH THE EVENING.
KMBG AND KPIR SHOULD SCT OUT BY 18Z.

NEXT CONCERN IS FOG CHANCES TONIGHT. DOWNWARD MOTION SEEN ALOFT
TONIGHT WITH HIGH PRESSURE MOVING IN. WINDS WILL GO LIGHT. CROSS
SECTIONS SHOW THAT SPEC HUMIDITIES REMAIN FROM 10 TO 12 G/KG IN THE
LOWER LAYERS. WITH MUCH OF THE CWA RECEIVING RAIN THIS MORNING AND
NOT MUCH VENTILATION SEEN TODAY...WILL ADD FOG TO ALL CWA OVERNIGHT.

FOR SUNDAY...NEXT SERIES OF WEAK VORT MAX'S DROP SOUTH OVER CWA IN
NW FLOW ALOFT. FAIR AMOUNT OF LIFT SEEN IN THE OMEGA FIELDS AND
PLENTY OF LOW LEVEL MOIST STILL REMAINS. ETA SHOWS DECENT THETA-E
RIDGE NOSING INTO CWA WITH THE AVN A BIT WEAKER. FORECASTED
SOUNDINGS FROM AROUND THE CWA AT 18Z SHOW CAPE VALUES FROM 1.0K-1.3K
J/KG DURING THE AFTERNOON. 700MB TEMPS ARE BELOW 10 DEGREES C SHOW
NO CAP IS INDICATED. WILL ADD POPS FOR SHOWERS AND TSRA ON SUNDAY
FOR ENTIRE CWA.

WILL ALLOW FLASH FLOOD WATCH FOR NERN CWA TO EXPIRE AT 08Z.

.ABR...NONE.
HINTZ

SDZ003-015-033-045-050315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
956 PM CDT (856 PM MDT) FRI AUG 4 2000

...SEVERE THUNDERSTORM WATCH 646 CANCELLED...

SEVERE THUNDERSTORM WATCH 646 FOR CORSON...DEWEY...
STANLEY...AND JONES COUNTIES HAVE BEEN CANCELLED.

ECKBERG

N

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
1000 PM CDT FRI AUG 4 2000

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0910 PM    4 NE PIERRE               SD   3.5 INCH HAIL
08/04/00   HUGHES                         GRAPEFRUIT SIZE HAIL
                                          REPORTED BY LAW               F
                                          ENFORCEMENT.

JH

N

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
155 AM CDT SAT AUG 5 2000

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1100 PM    3 W FAULKTON              SD   4.5 INCH HAIL
08/04/00   FAULK                          SOFTBALL SIZE HAIL ALONG
                                          WITH 70 MPH WINDS. SHERIFF
                                          REPORT.

1110 PM    26 SW FAULKTON            SD   WIND DAMAGE
08/04/00   HYDE                           TREES DOWN.

1115 PM    3 E FAULKTON              SD   WIND DAMAGE
08/04/00   FAULK                          TREES DOWN. 60 TO 65 MPH
                                          WINDS. SPOTTER REPORT.

1120 PM    FAULKTON                  SD   70 MPH WIND GUST
08/04/00   FAULK                          SHERIFF REPORT.

1210 AM    MILLER                    SD   1.75 INCH HAIL
08/05/00   HAND                           GOLFBALL SIZE HAIL. SPOTTER
                                          REPORT.

JH

N