Alert archive / South Dakota / Flash Flood Watches in 2008
Flash Flood Watch 2, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this flash flood watch at Jun 4, 2008, 3:00 PM CDT for 4 states. It took effect at Jun 4, 2008, 10:00 PM CDT. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Jun 4, 2008, 3:00 PM CDT (20:00 UTC)
- In effect from
- Jun 4, 2008, 10:00 PM CDT
- Expired
- Jun 5, 2008, 2:50 AM CDT
- In force
- 5 hr
- Issued by
- NWS Sioux Falls, SD
- Flood severity
- None
All 45 counties
Buena Vista County, IA, Cherokee County, IA, Clay County, IA, Dickinson County, IA, Ida County, IA, Lyon County, IA, O'Brien County, IA, Osceola County, IA, Plymouth County, IA, Sioux County, IA, Woodbury County, IA, Cottonwood County, MN, Jackson County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Dakota County, NE, Dixon County, NE, Aurora County, SD, Beadle County, SD, Bon Homme County, SD, Brookings County, SD, Brule County, SD, Charles Mix County, SD, Clay County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson County, SD, Jerauld County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Sanborn County, SD, Turner County, SD, Union County, SD, Yankton County, SD
The radar
The Sioux Falls radar (KFSD), 16 km from the middle of the area, began a volume at 20:00 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 8.0 hours before the alert went out and 202 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1104 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 42 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS63 KFSD 042000 FFAFSD URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE SIOUX FALLS SD 300 PM CDT WED JUN 4 2008 .RAINFALL OF ONE AND A HALF TO TWO AND A HALF INCHES THAT FELL LATE SUNDAY NIGHT INTO MONDAY MORNING HAS HELPED TO SATURATE THE GROUND IN MANY LOCATIONS AS WELL AS CAUSE STREAMS...CREEKS AND RIVERS TO RISE. THUNDERSTORMS WILL MOVE NORTH INTO THE AREA THIS EVENING AND CONTINUE INTO THURSDAY MORNING. SOME OF THE RAIN WILL BE HEAVY AT TIMES WITH AREAS OF 1 TO 2 INCHES OF RAIN POSSIBLE. ANOTHER SHOT OF RAIN AND THUNDERSTORMS WILL BE POSSIBLE ON THURSDAY NIGHT AND COULD EXACERBATE ANY PROBLEMS THAT TONIGHTS THUNDERSTORMS CREATE. IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097- 098-NEZ013-014-SDZ038>040-050-052>071-050400- /O.NEW.KFSD.FF.A.0002.080605T0300Z-080605T1500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 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- INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD... LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK... ORANGE CITY...SIOUX CENTER...SHELDON...HARTLEY...SANBORN... SPENCER...LE MARS...CHEROKEE...STORM LAKE...SIOUX CITY... IDA GROVE...HOLSTEIN...BATTLE CREEK...TYLER...HENDRICKS... LAKE BENTON...IVANHOE...MARSHALL...SLAYTON...FULDA...WINDOM... MOUNTAIN LAKE...WORTHINGTON...JACKSON...LAKEFIELD...PIPESTONE... LUVERNE...WAKEFIELD...PONCA...ALLEN...SOUTH SIOUX CITY...HURON... DE SMET...ARLINGTON...LAKE PRESTON...BROOKINGS...GREGORY... BURKE...WESSINGTON SPRINGS...ALPENA...WOONSOCKET...HOWARD... MADISON...FLANDREAU...CHAMBERLAIN...KIMBALL...PLANKINTON... WHITE LAKE...STICKNEY...MITCHELL...ALEXANDRIA...EMERY...SALEM... CANISTOTA...BRIDGEWATER...MONTROSE...SIOUX FALLS...WAGNER... PLATTE...LAKE ANDES...MARTY...ARMOUR...CORSICA...DELMONT... PARKSTON...FREEMAN...MENNO...TRIPP...PARKER...CENTERVILLE... MARION...VIBORG...HURLEY...CHANCELLOR...CANTON...LENNOX...TEA... HARRISBURG...TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR... YANKTON...VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT... ALCESTER...JEFFERSON 300 PM CDT WED JUN 4 2008 ...FLASH FLOOD WATCH IN EFFECT FROM 10 PM CDT THIS EVENING THROUGH THURSDAY MORNING... THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * FLASH FLOOD WATCH FOR PORTIONS OF NORTHWEST IOWA...SOUTHWEST MINNESOTA...NORTHEAST NEBRASKA AND SOUTH DAKOTA...INCLUDING THE FOLLOWING AREAS...IN NORTHWEST IOWA...BUENA VISTA... CHEROKEE...CLAY...DICKINSON...IDA...LYON...OBRIEN...OSCEOLA... PLYMOUTH...SIOUX AND WOODBURY. IN SOUTHWEST MINNESOTA... COTTONWOOD...JACKSON...LINCOLN...LYON...MURRAY...NOBLES... PIPESTONE AND ROCK. IN NORTHEAST NEBRASKA...DAKOTA AND DIXON. IN SOUTH DAKOTA...AURORA...BEADLE...BON HOMME...BROOKINGS... BRULE...CHARLES MIX...CLAY...DAVISON...DOUGLAS...GREGORY... HANSON...HUTCHINSON...JERAULD...KINGSBURY...LAKE...LINCOLN... MCCOOK...MINER...MINNEHAHA...MOODY...SANBORN...TURNER...UNION AND YANKTON. * FROM 10 PM CDT THIS EVENING THROUGH THURSDAY MORNING * SATURATED CONDITIONS AS WELL AS MANY RIVERS NEAR BANKFUL WILL SET THE STAGE FOR ADDITIONAL FLOODING AND FLASH FLOODING TONIGHT. * RAIN AND THUNDERSTORMS WILL MOVE NORTH INTO THE AREA THIS EVENING AND CONTINUE INTO THURSDAY MORNING. RAINFALL AMOUNTS OF ONE TO TWO INCHES WILL BE LIKELY AND COULD CAUSE AREA CREEKS...STREAMS AND RIVERS TO RISE RAPIDLY. SINCE MUCH OF THE RAIN IS EXPECTED TO FALL OVER A SHORT PERIOD OF TIME...FLASH FLOODING...ESPECIALLY IN URBAN AREAS...WILL ALSO BE POSSIBLE. 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. $$ 08
2 follow-up statements
000 WGUS63 KFSD 050424 FFAFSD URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE SIOUX FALLS SD 1124 PM CDT WED JUN 4 2008 .TWO AREAS OF RAINFALL EXIST WHICH MAY IMPACT AREAS LATE TONIGHT AND THURSDAY MORNING. ONE AREA OF VERY HEAVY RAIN EXISTS IN SOUTHEAST NEBRASKA WHICH COULD LIFT NORTHWARD ALONG A WARM FRONT ABOVE THE SURFACE...IMPACTING AREAS FROM AROUND YANKTON...TO SIOUX CITY TO STORM LAKE IOWA...LATE TONIGHT AND EARLY THURSDAY. ANOTHER AREA OF MODERATE RAINFALL...WITH EMBEDDED HEAVY RAINFALL...IS IN NORTH CENTRAL NEBRASKA AND SOUTH CENTRAL SOUTH DAKOTA...WHICH WILL LIKELY MOVE AS FAR EAST AS THE JAMES RIVER VALLEY LATE TONIGHT. IAZ001>003-012>014-MNZ071-072-080-081-089-090-097-098-SDZ039-040- 054>056-061-062-066-067-050530- /O.CAN.KFSD.FF.A.0002.000000T0000Z-080605T1500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ LYON-OSCEOLA-DICKINSON-SIOUX-OBRIEN-CLAY-LINCOLN-MURRAY- COTTONWOOD-NOBLES-JACKSON-PIPESTONE-ROCK-KINGSBURY-BROOKINGS- MINER-LAKE-MOODY-MCCOOK-MINNEHAHA-TURNER- INCLUDING THE CITIES OF...ROCK RAPIDS...GEORGE...INWOOD... LARCHWOOD...SIBLEY...SPIRIT LAKE...MILFORD...ARNOLDS PARK... ORANGE CITY...SIOUX CENTER...SHELDON...HARTLEY...SANBORN... SPENCER...TYLER...HENDRICKS...LAKE BENTON...IVANHOE...MARSHALL... SLAYTON...FULDA...WINDOM...MOUNTAIN LAKE...WORTHINGTON... JACKSON...LAKEFIELD...PIPESTONE...LUVERNE...DE SMET...ARLINGTON... LAKE PRESTON...BROOKINGS...HOWARD...MADISON...FLANDREAU...SALEM... CANISTOTA...BRIDGEWATER...MONTROSE...SIOUX FALLS...PARKER... CENTERVILLE...MARION...VIBORG...HURLEY...CHANCELLOR...CANTON... LENNOX...TEA...HARRISBURG 1124 PM CDT WED JUN 4 2008 ...FLASH FLOOD WATCH IS CANCELLED... THE FLASH FLOOD WATCH FOR PORTIONS OF NORTHWEST IOWA...SOUTHWEST MINNESOTA AND SOUTH DAKOTA HAS BEEN CANCELLED. THE HEAVIEST RAINFALL MISSED THIS AREA WEDNESDAY EVENING...AND IT IS LIKELY THAT THE HEAVY RAINFALL WILL STAY SOUTH AND WEST OF THIS AREA LATE TONIGHT. $$ IAZ020>022-031-032-NEZ013-014-SDZ069>071-051230- /O.EXT.KFSD.FF.A.0002.080605T0700Z-080605T1500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DIXON-DAKOTA-YANKTON- CLAY-UNION- INCLUDING THE CITIES OF...LE MARS...CHEROKEE...STORM LAKE... SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK...WAKEFIELD... PONCA...ALLEN...SOUTH SIOUX CITY...YANKTON...VERMILLION... NORTH SIOUX CITY...BERESFORD...ELK POINT...ALCESTER...JEFFERSON 1124 PM CDT WED JUN 4 2008 ...FLASH FLOOD WATCH NOW IN EFFECT UNTIL 10 AM CDT THURSDAY... THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR * PORTIONS OF NORTHWEST IOWA...NORTHEAST NEBRASKA AND SOUTHEAST SOUTH DAKOTA...INCLUDING THE FOLLOWING AREAS...IN NORTHWEST IOWA...BUENA VISTA...CHEROKEE...IDA...PLYMOUTH AND WOODBURY. IN NORTHEAST NEBRASKA...DAKOTA AND DIXON. IN SOUTHEAST SOUTH DAKOTA...CLAY...UNION AND YANKTON. * UNTIL 10 AM CDT THURSDAY * SATURATED CONDITIONS AS WELL AS MANY RIVERS NEAR BANKFULL WILL SET THE STAGE FOR ADDITIONAL FLOODING AND FLASH FLOODING LATE TONIGHT. * RAIN AND THUNDERSTORMS COULD MOVE NORTH INTO THE AREA LATE TONIGHT. IF THIS HAPPENS...RAINFALL AMOUNTS OF ONE TO TWO INCHES WILL BE LIKELY AND COULD CAUSE AREA CREEKS...STREAMS AND RIVERS TO RISE RAPIDLY. SINCE MUCH OF THE RAIN IS EXPECTED TO FALL OVER A SHORT PERIOD OF TIME...FLASH FLOODING...ESPECIALLY IN URBAN AREAS...WILL ALSO BE POSSIBLE. 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. $$ SDZ038-050-052-053-057>060-063>065-068-051230- /O.CON.KFSD.FF.A.0002.000000T0000Z-080605T1500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BEADLE-GREGORY-JERAULD-SANBORN-BRULE-AURORA-DAVISON-HANSON- CHARLES MIX-DOUGLAS-HUTCHINSON-BON HOMME- INCLUDING THE CITIES OF...HURON...GREGORY...BURKE... WESSINGTON SPRINGS...ALPENA...WOONSOCKET...CHAMBERLAIN... KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...MITCHELL... ALEXANDRIA...EMERY...WAGNER...PLATTE...LAKE ANDES...MARTY... ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP... TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR 1124 PM CDT WED JUN 4 2008 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 10 AM CDT THURSDAY... THE FLASH FLOOD WATCH CONTINUES FOR * PORTIONS OF EAST CENTRAL SOUTH DAKOTA...SOUTH CENTRAL SOUTH DAKOTA AND SOUTHEAST SOUTH DAKOTA...INCLUDING THE FOLLOWING AREAS...IN EAST CENTRAL SOUTH DAKOTA...BEADLE...JERAULD AND SANBORN. IN SOUTH CENTRAL SOUTH DAKOTA...BRULE...CHARLES MIX AND GREGORY. IN SOUTHEAST SOUTH DAKOTA...AURORA...BON HOMME... DAVISON...DOUGLAS...HANSON AND HUTCHINSON. * UNTIL 10 AM CDT THURSDAY * SOME AREAS ARE VERY SATURATED FROM RECENT RAINFALL...ESPECIALLY IN SOUTHEAST SOUTH DAKOTA. * RAIN AND THUNDERSTORMS WILL MOVE WEST INTO THE AREA OVERNIGHT AND LATE TONIGHT. RAINFALL AMOUNTS OF ONE TO TWO INCHES COULD BE POSSIBLE AND MAY CAUSE AREA CREEKS...STREAMS AND RIVERS TO RISE RAPIDLY. SINCE MUCH OF THE RAIN IS EXPECTED TO FALL OVER A SHORT PERIOD OF TIME...FLASH FLOODING...ESPECIALLY IN URBAN AREAS...WILL ALSO BE POSSIBLE. A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION. YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLASH FLOOD WARNINGS BE ISSUED. $$ MJF
000 WGUS63 KFSD 050750 FFAFSD FLOOD WATCH NATIONAL WEATHER SERVICE SIOUX FALLS SD 250 AM CDT THU JUN 5 2008 IAZ020>022-031-032-NEZ013-014-SDZ038-050-052-053-057>060-063>065- 068>071-050845- /O.CAN.KFSD.FF.A.0002.000000T0000Z-080605T1500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ PLYMOUTH-CHEROKEE-BUENA VISTA-WOODBURY-IDA-DIXON-DAKOTA-BEADLE- GREGORY-JERAULD-SANBORN-BRULE-AURORA-DAVISON-HANSON-CHARLES MIX- DOUGLAS-HUTCHINSON-BON HOMME-YANKTON-CLAY-UNION- INCLUDING THE CITIES OF...LE MARS...CHEROKEE...STORM LAKE... SIOUX CITY...IDA GROVE...HOLSTEIN...BATTLE CREEK...WAKEFIELD... PONCA...ALLEN...SOUTH SIOUX CITY...HURON...GREGORY...BURKE... WESSINGTON SPRINGS...ALPENA...WOONSOCKET...CHAMBERLAIN... KIMBALL...PLANKINTON...WHITE LAKE...STICKNEY...MITCHELL... ALEXANDRIA...EMERY...WAGNER...PLATTE...LAKE ANDES...MARTY... ARMOUR...CORSICA...DELMONT...PARKSTON...FREEMAN...MENNO...TRIPP... TYNDALL...SCOTLAND...SPRINGFIELD...AVON...TABOR...YANKTON... VERMILLION...NORTH SIOUX CITY...BERESFORD...ELK POINT... ALCESTER...JEFFERSON 245 AM CDT THU JUN 5 2008 ...FLASH FLOOD WATCH IS CANCELLED... THE FLASH FLOOD WATCH FOR PORTIONS OF NORTHWEST IOWA...NORTHEAST NEBRASKA AND SOUTH DAKOTA HAS BEEN CANCELLED. WHILE SHOWERS AND SCATTERED THUNDERSTORMS WILL CONTINUE ACROSS THE REGION EARLY THIS MORNING...HEAVY RAINFALL IS NOT EXPECTED. ADDITIONAL SHOWERS AND THUNDERSTORMS ARE EXPECTED TO REDEVELOP LATER THIS AFTERNOON...AND HEAVY RAIN WILL BE POSSIBLE WITH THESE STORMS. STAY TUNED FOR ADDITIONAL UPDATES. $$
What forecasters said that day
The local office's own words before this flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Sioux Falls, SD wrote its last area forecast discussion before this flash flood watch went out at Jun 4, 10:59 AM CDT, 4 hours 1 minute earlier.
Area forecast discussion, Jun 4, 10:59 AM CDT, 4 hours 1 minute before
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA NATIONAL WEATHER SERVICE SIOUX FALLS SD 1059AM CDT WED JUN 4 2008 .DISCUSSION... VERY ACTIVE 36 HOURS COMING UP AS A POTENT UPPER LEVEL WAVE DIVES INTO THE FOUR CORNERS REGION TODAY. FOR TODAY...PRECIPITATION SHOULD CLEAR OUT OF MOST AREAS...BUT WITH WEAK UPPER LEVEL SUPPORT AND A MOIST PROFILE...CANNOT RULE OUT ADDITIONAL SHOWERS AND ISOLATED THUNDERSTORMS THROUGHOUT THE DAY. IN FACT...SOME OF THIS UPPER LEVEL SUPPORT MOVING ONTO THE WESTERN HIGH PLAINS AND COULD SEE SOME OF THIS PRECIPITATION MOVE INTO THE WESTERN CWA THIS AFTERNOON. WILL TAKE OUT THREAT OF TORNADOES/LAND SPOUTS FOR THIS AFTERNOON AND EVENING WITH THE LACK OF A DECENT BOUNDARY AND LACK OF HEATING...ESPECIALLY NOW THAT THE CLOUD COVER IN THE WEST IS EXPANDING PRETTY RAPIDLY. OTHERWISE...HEADING INTO TONIGHT...PRETTY GOOD CHANCE THAT A FLOOD WATCH WILL NEED TO BE ISSUED FOR MOST OF SOUTHEAST SOUTH DAKOTA AS MODELS CONTINUE TO CONVERGE ON A SOLUTION THAT BRINGS HEAVY RAIN INTO CENTRAL/SOUTHEAST SOUTH DAKOTA TONIGHT INTO THURSDAY MORNING...WITH ADDITIONAL DEVELOPMENT LIKELY ON THURSDAY AFTERNOON AND EVENING. SEVERE THREAT TONIGHT PRETTY MUCH JUST HAIL AND MAINLY LATE. BETTER CHANCES FOR SEVERE SHOULD BE SOUTH OF THE CWA. 08 && AVIATION... SHOULD REMAIN PRETTY MUCH LOW END MVFR TO OCCASIONAL IFR IN FOG AND THUNDERSTORMS FOR THE NEXT 24 TO 36 HOURS. && .PREV DISCUSSION... ADVECTION SHOWERS WITH EMBEDDED THUNDER SPREADING EWRD EARLY THIS MORNING. LOOKS LIKE MUCH OF THE CWA SHOULD BE ABLE TO SQUEEZE OUT MEASURABLE PRECIP. SHOULD DRY OUT FOR A TIME LATER THIS MORNING INTO THE EARLY AFTERNOON AS BEST MID LEVEL FORCING SLIDES EAST OF THE AREA...HOWEVER CONVOLUTED MOIST WRLY FLOW MAKES IT HARD TO COMPLETELY DISCOUNT SHOWERS ANYWHERE DURING THE REMAINDER OF THE DAY. NOT ANTICIPATING MUCH IN THE WAY OF SUNSHINE TODAY AS SFC HEATING WOULD MOSTLY BE SELF DESTRUCTIVE PROVIDED THE ABUNDANCE OF SFC MOISTURE...WITH THE EXCEPTION POSSIBLY IN THE WEST. SEVERE THUNDERSTORM THREAT NON EXISTENT THROUGH THE EARLY AFTERNOON...BUT MAY HAVE TO WATCH WRN AREAS LATER THIS AFTERNOON AND EARLY EVENING. MOISTURE AND TEMPERATURE ADVECTION IN THE LOWEST LEVELS AND SOME OF DRYING IN THE 700 TO 500 MB LAYER SHOULD DESTABILIZE THE ATMOSPHERE ENOUGH BY LATE AFTERNOON FOR THUNDERSTORM DEVELOPMENT...ESPECIALLY IN PLACES WHICH DO SEE A BIT OF SUNSHINE. SHOULD TIMING BE RIGHT WITH S/WV PASSAGE...ENHANCEMENT OF CONVECTION CAN BE EXPECTED. NAM AND GFS DIFFER ON THE EXTENT OF CAPE WITH THE GFS YIELDING MORE ROBUST MU CAPE VALUES THIS AFTERNOON...ALTHOUGH ML CAPES ARE SOMEWHAT SIMILAR IN THE 800 TO 1400 J/KG RANGE BY 00Z THIS EVENING IN THE JAMES VALLEY WEST. DEEP LAYER DIRECTION SHEAR DOES SUPPORT THE POTENTIAL FOR SUPERCELL THUNDERSTORMS IN THESE AREA LATE TODAY INTO EARLY EVENING...HOWEVER BUFKIT SOUNDINGS INDICATED TALL SKINNY CAPE...WHICH DOES NOT SUPPORT VIGOROUS UPDRAFTS. SO...MAINLY THINKING MARGINAL SEVERE STORMS POSSIBLE WITH THE POTENTIAL FOR HAIL IN THE LOW END SEVERE RANGE. ONE OTHER THING TO WATCH WILL BE THE POTENTIAL FOR LANDSPOUTS WITH THESE STORMS. PROGGED 2 KM VGP VALUES IN THE .1 TO .4 RANGE AND LAPSE RATES AROUND 7 DEG/KM. SHOULD THERE BE ENOUGH SURFACE HEATING...WHICH REMAINS A QUESTION AT THIS TIME...THEN A FEW LANDSPOUTS ARE CERTAINLY A POSSIBILITY. BETTER CHANCES FOR SEVERE THUNDERSTORM WILL BE LATER TONIGHT AND THEN AGAIN LATE THU AFTERNOON INTO THU EVENING. STRONG ELEVATED WARM FRONT WILL MOVE NORTH ACROSS THE CWA AFTER MIDNIGHT TONIGHT. THUNDERSTORMS ARE ANTICIPATED TO DEVELOP ALONG THIS FRONT WITH SOME STORMS LIKELY BECOMING SEVERE. MAIN SEVERE THREAT WITH THESE ELEVATED STORMS WILL HAIL TO THE SIZE OF GOLF BALLS...AND POSSIBLY LARGER. THESE STORM SHOULD MOVE FROM THE SRN CWA AROUND MIDNIGHT...TO THE NRN EXTEND OF THE CWA TOWARDS SUNRISE. THEN GENERALLY SHOULD SEE A BREAK IN THE THUNDERSTORM ACTIVITY LATER IN THE MORNING AND INTO MID AFTERNOON. SET UP FOR LATE THU AFTERNOON/EVENING IS A POTENTIALLY VOLATILE ONE. SEVERE THREAT WILL LARGELY DEPEND ON PLACEMENT OF UPPER TROUGH AND SFC WARM FRONT. MODELS HAVING DIFFERENT IDEAS ON PLACEMENT AND TIMING BUT LIKELY THERE WILL BE HIGH THREAT OF SEVERE WX ALONG AND EAST OF I29 AND POSSIBLY AS FAR WEST AS THE WRN CWA BORDER. VERY LARGE HAIL...DAMAGING WIND GUSTS...AND STRONG TORNADOES WILL BE POSSIBLE. THE MAIN TORNADO THREAT WILL BE ALONG THE SFC WARM FRONT...WHICH AT THIS TIME IS EXPECTED TO BE DRAPED ACROSS SE SD AND SW MN. WILL ALSO HAVE TO MONITOR THE FLOOD POTENTIAL WITH THUNDERSTORMS TONIGHT AND AGAIN TOMORROW. THINGS DRY OUT ON FRIDAY AND STRONG COLD FRONT PUSHES EAST OF THE AREA. MODELS HAVE SHIFTED UPPER LOW FARTHER NORTH...SO LOWER THE CHANCES FOR POP FRI MORNING. RESIDUAL MOISTURE AND COOLER TEMPERATURES ALOFT...COULD SEE SOME SHOWERS/ISOLATED THUNDERSTORMS LATE IN THE DAY FRI. OTHERWISE OVERALL WET WX PATTERN TO CONTINUE INTO THE FORESEEABLE FUTURE. && .FSD WATCHES/WARNINGS/ADVISORIES... SD...NONE. MN...NONE. IA...NONE. NE...NONE. && LIEBL/RYRHOLM
Hazardous weather outlook, Jun 4, 11:28 AM CDT, 3 hours 32 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SIOUX FALLS SD 1128 AM CDT WED JUN 04 2008 SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098- IAZ001>003-012>014-020>022-031-032-NEZ013-014-051200- AURORA-BEADLE-BON HOMME-BROOKINGS-BRULE-BUENA VISTA IA- CHARLES MIX-CHEROKEE IA-CLAY-CLAY IA-COTTONWOOD MN-DAKOTA NE- DAVISON-DICKINSON IA-DIXON NE-DOUGLAS-GREGORY-HANSON-HUTCHINSON- IDA IA-JACKSON MN-JERAULD-KINGSBURY-LAKE-LINCOLN-LINCOLN MN- LYON IA-LYON MN-MCCOOK-MINER-MINNEHAHA-MOODY-MURRAY MN-NOBLES MN- OBRIEN IA-OSCEOLA IA-PIPESTONE MN-PLYMOUTH IA-ROCK MN-SANBORN- SIOUX IA-TURNER-UNION-WOODBURY IA-YANKTON- 1128 AM CDT WED JUN 04 2008 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA... SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS... RAIN AND THUNDERSTORMS ARE EXPECTED TO REDEVELOP OVER NEBRASKA AND SOUTHERN SOUTH DAKOTA TONIGHT AND LIFT NORTHWARD. SOME OF THE STORMS WILL BE CAPABLE OF PRODUCING HAIL TO THE SIZE OF QUARTERS...ESPECIALLY LATE. FLOODING... THE LITTLE SIOUX RIVER FROM AROUND SPENCER TO LINN GROVE IS EXPECTED TO CREST AT OR JUST SLIGHTLY ABOVE FLOOD STAGE BY LATE THIS WEEK. MINOR TO MODERATE FLOODING IS EXPECTED ALONG PORTIONS OF THE VERMILLION RIVER THE NEXT FEW DAY. RAINS FROM THUNDERSTORMS ARE EXPECTED OVER THE NEXT FEW DAYS...WHICH COULD BE CAUSE FOR CONTINUED OR ADDITIONAL FLOODING. HEAVY RAIN WILL MOVE INTO SOUTHERN SOUTH DAKOTA TONIGHT AND CONTINUE INTO TUESDAY MORNING. RAINFALL AMOUNTS OF 1 TO 3 INCHES WILL BE POSSIBLE...ESPECIALLY ALONG AND WEST OF THE JAMES RIVER VALLEY. THIS COULD CREATE SOME LOCALIZED FLASH FLOODING ISSUES AS WELL AS INCREASE THE THREAT OF ADDITIONAL FLOODING ON CREEKS...STREAMS AND RIVERS. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY HEAVY RAIN AND SEVERE THUNDERSTORMS WILL AGAIN BE POSSIBLE THURSDAY AFTERNOON AND NIGHT. THE BEST CHANCE FOR SEVERE THUNDERSTORMS SHOULD BE SOUTH AND EAST OF A BROOKINGS TO YANKTON LINE WITH GOLF BALL SIZED HAIL...WIND GUSTS TO 70 MPH AND STRONG TORNADOES ALL THREATS. HEAVY RAIN WILL ALSO BE A THREAT TO THE WEST OF THIS LINE WITH AN ADDITIONAL ONE TO TWO INCHES OF RAIN LIKELY ACROSS MUCH OF THE AREA THROUGH LATE THURSDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY AND TONIGHT. SPOTTER ACTIVATION WILL BE POSSIBLE AFTER SPOTTER ACTIVATION WILL BE LIKELY AFTER && FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.CRH.NOAA.GOV/FSD. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK.
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 3:19 PM CDT | River Flood Warning | FSD | Lincoln, Union | 12 days |
| Jun 4, 3:19 PM CDT | River Flood Warning | FSD | Union | 13 days |
| Jun 4, 3:41 PM CDT | Flash Flood Warning | FSD | Bon Homme, Yankton | 2 hr |
| Jun 4, 4:08 PM CDT | Severe Thunderstorm Warning | FSD | Bon Homme, Yankton | 37 min |
| Jun 4, 4:25 PM CDT | Flash Flood Warning | FSD | Yankton | 2 hr |
| Jun 4, 4:43 PM CDT | Severe Thunderstorm Warning | FSD | Yankton | 47 min |
| Jun 4, 8:09 AM CDT | River Flood Warning | FSD | Clay, Dickinson | 4 days |
Nearby
Flash Flood Watches in South Dakota, 2008Flash Flood Watches in Iowa, 2008Flash Flood Watches in Minnesota, 2008Every flash flood watch in 2008
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.