Severe Thunderstorm Warning 208, NWS Aberdeen, SD

256 
WWUS53 KABR 281007
SVSABR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
507 AM CDT SUN AUG 28 2011

SDC021-045-089-129-281030-
/O.CON.KABR.SV.W.0208.000000T0000Z-110828T1030Z/
MCPHERSON SD-EDMUNDS SD-CAMPBELL SD-WALWORTH SD-
507 AM CDT SUN AUG 28 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN
WALWORTH...SOUTHEASTERN CAMPBELL...NORTHWESTERN EDMUNDS AND WESTERN
MCPHERSON COUNTIES UNTIL 530 AM CDT...

AT 505 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 11 MILES
WEST OF HILLSVIEW...OR 11 MILES SOUTHWEST OF EUREKA...MOVING
SOUTHEAST AT 40 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  HILLSVIEW AROUND 515 AM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 4595 9965 4595 9925 4592 9914 4544 9969
      4569 10007
TIME...MOT...LOC 1007Z 315DEG 34KT 4564 9977
WIND...HAIL 60MPH 1.00IN

$$
TMT

958 
WWUS53 KABR 281027
SVSABR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
527 AM CDT SUN AUG 28 2011

SDC021-045-089-129-281037-
/O.EXP.KABR.SV.W.0208.000000T0000Z-110828T1030Z/
MCPHERSON SD-EDMUNDS SD-CAMPBELL SD-WALWORTH SD-
527 AM CDT SUN AUG 28 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WALWORTH...
SOUTHEASTERN CAMPBELL...NORTHWESTERN EDMUNDS AND WESTERN MCPHERSON
COUNTIES WILL EXPIRE AT 530 AM CDT/430 AM MDT/...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY...HOWEVER SMALL HAIL AND HEAVY RAIN ARE STILL POSSIBLE WITH
THIS THUNDERSTORM.

LAT...LON 4595 9965 4595 9925 4592 9914 4544 9969
      4569 10007
TIME...MOT...LOC 1027Z 315DEG 34KT 4550 9958

$$
TMT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ABERDEEN SD
418 AM CDT SUN AUG 28 2011

.SHORT TERM...TODAY THROUGH TUESDAY
ELEVATED MCS CONTINUES TO SLIDE SOUTHEAST ACROSS SOUTH CENTRAL ND
AND NOW ENTERING FAR NORTHERN SD. LOW LEVEL WAA AND ISENTROPIC
FORCING ACROSS THE AREA THIS MORNING ALONG WITH STEEP MID LEVEL
LAPSE RATES. MUCAPE VALUES ALSO ON THE ORDER OF 1000 TO 2000 J/KG.
SHEAR DECENT AS WELL SO CANNOT RULE OUT A COUPLE SEVERE STORMS
WITH PRIMARILY LARGE HAIL. HAVE INCREASED POPS TO LIKELY ACROSS
THE NORTHERN AND NORTHEAST CWA THROUGH THE MORNING HOURS. BY THE
AFTERNOON IT APPEARS THIS COMPLEX WILL HAVE SLID SOUTHEAST OF THE
AREA LEAVING BEHIND MOSTLY SUNNY SKIES. SFC HIGH BUILDS IN
OVERNIGHT WITH LIGHT WINDS AND FAIR SKIES. ADDED PATCHY FOG ACROSS
THE EASTERN CWA AS GUIDANCE HINTING AT FOG IN ABR AND ATY.
SOUNDINGS SOMEWHAT FAVORABLE AS WELL WITH DECENT INVERSION SETTING
UP. UPPER LEVEL ENERGY CONTINUES TO MOVE ACROSS THE NORTHERN
PLAINS MONDAY AFTERNOON THROUGH TUESDAY SO WILL CONTINUE THE
CHANCE OF SHOWERS AND STORMS. A BIT OF A LOW LEVEL JET SETS UP
MONDAY NIGHT BUT WEAKENS BY 12Z TUESDAY.

.LONG TERM...TUESDAY NIGHT THROUGH FRIDAY
A SHORTWAVE ALOFT AND SOME LEE SIDE TROFING AT THE SFC WILL KEEP
TSTORM CHANCES AROUND TUESDAY NIGHT AND INTO EARLY WEDNESDAY
MORNING. ANOTHER SHORTWAVE WILL MOVE THROUGH THE REGION ON
WEDNESDAY BUT SHOULD REMAIN A LITTLE FARTHER NORTH SO KEPT PRECIP
CHANCES JUST IN THE NORTHERN COUNTIES. A COLD FRONT WILL MOVE
THROUGH ON THURSDAY. DRIER AIR AND CAPPING AT THE SFC AHEAD OF THE
FRONT WILL KEEP PRECIP TO A MINIMUM UNTIL AFTER FROPA...BUT KEPT
SLIGHT CHANCES IN THROUGH THE PERIOD BECAUSE OF TIMING CONCERNS AT
THIS POINT. WITH SOUTHWEST FLOW ALOFT AND SOUTHEASTERLY SFC FLOW
AHEAD OF THE LEE SIDE TROUGH TEMPERATURES WILL BE WARM...HIGHS IN
THE UPPER 80S TO LOWER 90S...UNTIL AFTER COLD FROPA ON THURSDAY.

&&

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

VFR CONDITIONS ARE EXPECTED FOR ALL TAF LOCATIONS THIS EVENING.
EXPECT SOME SHOWERS AND THUNDERSTORMS TO MOVE SOUTHEAST ACROSS
THE REGION OUT OF NORTH DAKOTA INTO THE MORNING HOURS. SOME OF THESE
COULD AFFECT THE TAF LOCATIONS ESPECIALLY KABR. INSERTED VCTS IN THE
TAFS FOR EARLY MORNING. MAY HAVE TO AMEND AFTER STORM MOTION
BECOMES MORE CERTAIN.

&&

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

SHORT TERM...TMT
LONG TERM...WISE
AVIATION...WISE

WEATHER.GOV/ABERDEEN

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ABERDEEN SD
331 PM CDT SAT AUG 27 2011

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-282045-
TRAVERSE-BIG STONE-CORSON-CAMPBELL-MCPHERSON-BROWN-MARSHALL-
ROBERTS-WALWORTH-EDMUNDS-DAY-DEWEY-POTTER-FAULK-SPINK-CLARK-
CODINGTON-GRANT-HAMLIN-DEUEL-STANLEY-SULLY-HUGHES-HYDE-HAND-JONES-
LYMAN-BUFFALO-
331 PM CDT SAT AUG 27 2011 /231 PM MDT SAT AUG 27 2011/

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED SHOWERS AND THUNDERSTORMS WILL MOVE EAST ACROSS PORTIONS
OF THE AREA TONIGHT. NO SEVERE WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY
THE POTENTIAL FOR WIDESPREAD SEVERE THUNDERSTORMS REMAINS LOW.

.SPOTTER INFORMATION STATEMENT...