Severe Thunderstorm Warning 24, NWS Sioux Falls, SD

630 
WWUS53 KFSD 310219
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
919 PM CDT FRI MAY 30 2014

IAC119-MNC133-310230-
/O.CON.KFSD.SV.W.0024.000000T0000Z-140531T0230Z/
LYON IA-ROCK MN-
919 PM CDT FRI MAY 30 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL
ROCK AND NORTH CENTRAL LYON COUNTIES UNTIL 930 PM CDT...

AT 918 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR ROCK RAPIDS...
AND MOVING NORTH AT 25 MPH.

HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE TO
         ROOFS...SIDING AND TREES.

LOCATIONS IMPACTED INCLUDE...
STEEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 4360 9625 4357 9612 4343 9619 4346 9629
TIME...MOT...LOC 0219Z 197DEG 22KT 4348 9622

HAIL...1.00IN
WIND...60MPH

$$

CHENARD

224 
WWUS53 KFSD 310228
SVSFSD

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
928 PM CDT FRI MAY 30 2014

IAC119-MNC133-310238-
/O.EXP.KFSD.SV.W.0024.000000T0000Z-140531T0230Z/
LYON IA-ROCK MN-
928 PM CDT FRI MAY 30 2014

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL ROCK AND NORTH
CENTRAL LYON COUNTIES WILL EXPIRE AT 930 PM CDT...

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

LAT...LON 4360 9625 4357 9612 4343 9619 4346 9629
TIME...MOT...LOC 0228Z 197DEG 22KT 4353 9619

$$

CHENARD

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SIOUX FALLS SD
654 PM CDT FRI MAY 30 2014

.SHORT TERM...(THIS EVENING THROUGH SATURDAY)
ISSUED AT 336 PM CDT FRI MAY 30 2014

CURRENT CONVECTION LIFTING NORTHWARD AND IS ASSOCIATED WITH WHAT IS
OUR EVER PRESENT UPPER LOW RESIDING WELL TO OUR SOUTH. SO ONCE
AGAIN...THE UPPER LOW HAS KICKED OFF AIR MASS THUNDERSTORMS THIS
AFTERNOON WHICH WILL RAPIDLY WANE IN THE LATE AFTERNOON OR EARLY
EVENING. FURTHERMORE...THIS ACTIVITY WILL REMAIN CONFINED TO ALONG
AND EAST OF THE I 29 CORRIDOR. OTHERWISE TO OUR WEST...THERE IS A
CHANCE THAT CONVECTION MAY LEAK INTO OUR WESTERN ZONES AS THE NIGHT
PROGRESSES FROM A STALLED SURFACE BOUNDARY IN CENTRAL SD. MOST OF
THE STORMS IN THAT AREA WILL LIKELY REMAIN TIED TO THE BOUNDARY. BUT
A FEW STORMS MAY RUMBLE NORTHEASTWARD FROM THOSE AREAS. CONCERNING
TEMPERATURES...STICKY DEW POINTS THIS TIME OF YEAR AND A SOUTHERLY
SURFACE FLOW WILL KEEP LOWS ON THE WARM SIDE...GENERALLY IN THE MID
60S.

ON SATURDAY...THE FIRST IN A SERIES OF SHORTWAVES OVER THE NEXT FEW
DAYS WILL MOVE ACROSS THE FORECAST AREA THROUGH THE DAY. STORM
POTENTIAL WILL FOLLOW SUIT WITH AMPLE ELEVATED INSTABILITY. THAT
SAID...THE WIND SHEAR IN THE MID LEVELS REMAINS RATHER WEAK AS
WITNESSED BY THE NAM AND GFS SOUNDINGS...AS WELL AS THE 0-6M BULK
SHEAR VECTORS. CANNOT RULE OUT A ROGUE SEVERE CELL ON SATURDAY...BUT
CHANCES OF THAT WILL BE LIMITED. THUNDERSTORM COVERAGE WILL PROBABLY
BECOME LIKELY TO WIDESPREAD ALONG THE SHORT WAVE IN THE WESTERN AND
NORTHERN HALVES OF OUR AREA...WITH LESSER CHANCES FURTHER SOUTH AS
THE WAVE SHEARS OFF TO THE NORTHEAST. CLOUD COVER MAY HINDER
TEMPERATURES FROM RISING TOO SHARPLY ON SATURDAY...SO READINGS WILL
BE A BIT COOLER WHEN COMPARED TO TODAY.

.LONG TERM...(SATURDAY NIGHT THROUGH FRIDAY)
ISSUED AT 336 PM CDT FRI MAY 30 2014

SUN...FOCUS WILL BE ON HEAVY RAIN/FLASH FLOOD POTENTIAL.  STATIONARY
BOUNDARY ACROSS CENTRAL SD WILL GET A KICK EAST/SE ON SUNDAY AS A
WEAK WAVE MOVES ACROSS THE STATE. BOTH THE NAM/GFS PWATS ARE AROUND
1.5 WHICH IS WELL ABOVE NORMAL FOR THIS TIME OF YEAR.  IN ADDITION
TO THAT...WEAK MID LEVEL FLOW WILL KEEP ANY TSRA MOVEMENT TO A
MINIMUM...ALLOWING FOR HEAVY DOWNPOURS.

SLOW MOVING FRONT WILL LINGER NEAR SUX ON MON MORNING SO WILL HANG
ON TO PRECIP CHANCES THERE

QPF FOR SATURDAY NIGHT INTO MONDAY ANYWHERE FROM 1-1.5 INCHES WITH
LOCALLY HIGHER AMOUNTS OF UP TO 2.5 INCHES.

FRONT WILL PASS THROUGH ON LATE SUN NIGHT INTO MONDAY AND HAVE
LIMITED POPS TO A SMALL PORTION OF SW MINNESOTA.

BY LATE MON NITE INTO TUES HAVE KEPT CONDITIONS DRY AS WE ARE
BETWEEN SYSTEMS AT THAT TIME.  NEXT CHANCE OF PRECIP RETURNS ON TUES
NIGHT WITH ANOTHER SFC LOW AND H5 TROF APPROACHES FROM THE WEST. H5
TROF PASSES EAST THROUGH THE PLAINS FROM WED NIGHT THRU THURS SO
HAVE KEPT IN CHC TSRA THROUGH THE PD.

TEMPS THROUGH THE EXTENDED WILL REMAIN ABOVE NORMAL IN THE LOW TO
MID 80S.

&&

.AVIATION...(FOR THE 00Z TAFS THROUGH 00Z SATURDAY EVENING)
ISSUED AT 654 PM CDT FRI MAY 30 2014

CURRENTLY VFR ACROSS THE AREA...WITH A FEW POPCORN THUNDERSTORMS OUT
THERE. THESE SHOULD DISSIPATE WITH SUNSET. ANOTHER AREA OF
THUNDERSTORMS CURRENTLY ACROSS CENTRAL SOUTH DAKOTA ASSOCIATED WITH A
NEARLY STATIONARY BOUNDARY. THERE IS A CHANCE SOME OF THESE STORMS
COULD MAKE IT INTO KHON TONIGHT...BUT FEEL THREAT IS TOO LOW AT THIS
TIME TO MENTION IN THE TAFS. DID GO AHEAD AND REMOVE THE MVFR STRATUS
IN THE KFSD AND KSUX TAFS. STILL A CHANCE SOMETHING FORMS...BUT
LATEST GUIDANCE SEEMS TO BE BACKING OFF ON THE POTENTIAL. WILL
CONTINUE TO MONITOR TRENDS THOUGH. ANOTHER ROUND OF SHOWERS AND
THUNDERSTORMS EXPECTED TOMORROW...MOVING FROM WEST TO EAST ACROSS THE
CWA. TIMING IS STILL UNCERTAIN...BUT CONFIDENCE IN GETTING STORMS IS
HIGH ENOUGH TO MENTION IN THE TAFS...WILL PROBABLY HAVE TO ADJUST
TIMING AS THINGS BECOME MORE CLEAR.

&&

.FSD WATCHES/WARNINGS/ADVISORIES...
SD...NONE.
MN...NONE.
IA...NONE.
NE...NONE.
&&

SHORT TERM...MJ
LONG TERM...SALLY
AVIATION...CHENARD

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SIOUX FALLS SD
801 PM CDT FRI MAY 30 2014

IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097-
098-NEZ013-014-SDZ038>040-050-052>071-010115-
LYON-OSCEOLA-DICKINSON-SIOUX-OBRIEN-CLAY-PLYMOUTH-CHEROKEE-
BUENA VISTA-WOODBURY-IDA-LINCOLN-MURRAY-COTTONWOOD-NOBLES-JACKSON-
PIPESTONE-ROCK-DIXON-DAKOTA-BEADLE-KINGSBURY-BROOKINGS-GREGORY-
JERAULD-SANBORN-MINER-LAKE-MOODY-BRULE-AURORA-DAVISON-HANSON-
MCCOOK-MINNEHAHA-CHARLES MIX-DOUGLAS-HUTCHINSON-TURNER-BON HOMME-
YANKTON-UNION-
801 PM CDT FRI MAY 30 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST
IOWA...SOUTHWEST MINNESOTA...NORTHEAST NEBRASKA...EAST CENTRAL
SOUTH DAKOTA...SOUTH CENTRAL SOUTH DAKOTA AND SOUTHEAST SOUTH
DAKOTA.

.DAY ONE...TONIGHT

SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE TONIGHT MAINLY WEST OF
THE JAMES RIVER.  THESE STORMS ARE NOT EXPECTED TO BE SEVERE.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THE THREAT FOR THUNDERSTORMS IS EXPECTED TO INCREASE THROUGHOUT THE WEEKEND.
THERE IS A SLIGHT RISK FOR SEVERE STORMS BOTH SATURDAY AND SUNDAY.
THE GREATEST CHANCE FOR SEVERE STORMS WILL BE IN THE LATE
AFTERNOON AND EVENING HOURS. IN ADDITION...THERE IS A RISK OF
EXCESSIVE RAINFALL WHICH COULD CAUSE URBAN OR FLASH FLOODING. SLOW
MOVING THUNDERSTORMS AND OR TRAINING COULD LEAD TO AREAS OF 2 TO 3
INCHES OF RAINFALL...WITH LOCALLY HIGHER AMOUNTS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
345 PM CDT FRI MAY 30 2014

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

0243 PM     HAIL             4 E AKRON               42.82N 96.49W
05/30/2014  E1.00 INCH       PLYMOUTH           IA   PUBLIC

&&

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
527 PM CDT FRI MAY 30 2014

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

0515 PM     HAIL             2 ENE RUSHMORE          43.63N 95.76W
05/30/2014  E0.75 INCH       NOBLES             MN   PUBLIC

&&

ADAMS