Alert archive / South Dakota / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 301, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at Jun 12, 2004, 9:33 PM CDT for Brookings County, Kingsbury County, South Dakota. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 12, 2004, 9:33 PM CDT (02:33 UTC)
- Expired
- Jun 12, 2004, 10:00 PM CDT
- In force
- 27 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Counties, with a storm outline in the text
Counties Brookings County, SD, Kingsbury County, SD
The radar
The Sioux Falls radar (KFSD), 86 km from the middle of the area, began a volume at 02:35 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 2.6 hours before the alert went out and 127 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
- 334 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 2209 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
277 WUUS53 KFSD 130233 SVRFSD SDC011-077-130300- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 933 PM CDT SAT JUN 12 2004 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... BROOKINGS COUNTY IN EAST CENTRAL SOUTH DAKOTA SOUTHEAST KINGSBURY COUNTY IN EAST CENTRAL SOUTH DAKOTA * UNTIL 1000 PM CDT * AT 930 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL. THIS STORM WAS LOCATED 7 MILES SOUTHWEST OF ARLINGTON...OR ABOUT 19 MILES NORTH OF MADISON...MOVING EAST AT 35 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... SINAI AROUND 940 PM CDT VOLGA AROUND 950 PM CDT BRUCE AROUND 955 PM CDT BROOKINGS...AURORA AROUND 1000 PM CDT LAT...LON 4435 9725 4420 9722 4427 9661 4449 9669 $$ WB
What forecasters said that day
The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jun 12, 3:00 PM CDT, 6 hours 33 minutes earlier.
Area forecast discussion, Jun 12, 3:00 PM CDT, 6 hours 33 minutes before
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA NATIONAL WEATHER SERVICE SIOUX FALLS SD 300 PM CDT SAT JUN 12 2004 .DISCUSSION... EDGE OF MAIN CONVECTN BRUSHING SERN CRNR OF FCST AREA IN NWRN IA PASSING ON BY BUT SHUD BE FOLLOWED BY MORE SHWRS AND TSTMS NOW DVLPG TO THE SW. STILL THINK THESE MAY DVLP A LTL FRTHR WWD WITH TIME AND THEREFORE MAY COME A LTL FRTHR N AND PACK A LTL MORE PUNCH. WILL GO SCT TSTMS SERN CRNR OF AREA FOR TNGT. FRTHR W AND N...TSTMS WILL BE HARD TO COME BY AT FIRST BUT WILL STICK SOME ISOLD IN FOR STG HEATG AND SLWLY INCRG MOISTR. EXPCT BETTER CHC TO COME LATR TNGT AS APPCHG IMPLS AND BETTER INSTBLTY SET UP A CHC FOR ELEVATED TSTMS OVER AREA. THIS THREAT SHUD CONT OVER AREA THRU SUN AS SYS AND SFC TROF POKE SLWLY EWD OVER AREA. WILL LINGER INTO SUN EVE SE. SUBSDNCE AND SOME SFC RDGNG SHUD KEEP FCST AREA DRY SUN NGT AND MON. MODELS IN BETETR AGREEMNT TDA ON SYS APPCHG FOR MON NGT AND TUE. MAIN PRBLM OF COURSE WAS THE TIMING. WILL GO CHC TSTMS FOR MON NGT AND TUE...WINDING DOWN IN THE SE TUE EVE. WITH ABV MENTND BETTER AGREEMNT AND CONSISTENCY IN MODELS A FEW DAYS AHD...NOW LOOKS LIKE WE SHUD GO W/O PCPN MENTN FOR EXTNDED PD WED THRU SAT. SOME MODELS MAY BE OVERDOING MILD NWRLY FLO AND UPR TROF OVER GRTLKS...BUT LOOKS LIKE A GNLY DRY PATTER SO WILL TAKE OUT ERYR MENTND PCPN FOR WED NGT AND THU. NOT REALLY A WHOLE LOT TO SAY ABOUT TEMPS. READINGS SHUD STAY MILD TO MDTLY WARM IN A FAIRLY NARROW DAY TO DAY RANGE FOR THE NEXT WEEK. HIGHS SHUD BE IN THE MID 70S TO MID 80S. && .FSD...WATCHES/WARNINGS/ADVISORIES... SD...NONE. MN...NONE. IA...NONE. NE...NONE. && WILLIAMS
Hazardous weather outlook, Jun 12, 11:42 AM CDT, 9 hours 51 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SIOUX FALLS SD 1142 AM CDT SAT JUN 12 2004 SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098- IAZ001>003-012>014-020>022-031-032-NEZ013-014-131200- 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- 1142 AM CDT SAT JUN 12 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA... SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS... TWO AREAS OF THUNDERSTORM DEVELOPMENT WILL BE POSSIBLE TODAY. THE FIRST IS OVER NORTHWEST IOWA AND EXTREME NORTHEAST NEBRASKA THIS AFTERNOON. A WARM FRONT WILL LIFT NORTH INTO EASTERN NEBRASKA AND WESTERN IOWA. THIS WILL BRING INCREASINGLY UNSTABLE AIR BACK TO THE AREA...WITH SCATTERED THUNDERSTORMS EXPECTED TO DEVELOP AS THIS MOISTURE RETURNS TO THE AREA. SEVERE STORMS ARE POSSIBLE WITH THIS ACTIVITY...WITH THE MAIN THREAT LARGE HAIL...POSSIBLY AS LARGE AS GOLF BALLS. AN ISOLATED TORNADO WILL ALSO BE POSSIBLE SOUTH AND EAST OF A SIOUX CITY TO STORM LAKE LINE AS THE SURFACE WARM FRONT LIFTS NORTH. THE SECOND AREA OF POSSIBLE THUNDERSTORM DEVELOPMENT WILL OCCUR BY LATE THIS AFTERNOON AS A COLD FRONT MOVES INTO CENTRAL SOUTH DAKOTA. LOW LEVEL MOISTURE WILL BE LIMITED IN THIS AREA...AND THUS THE INSTABILITY WILL ALSO BE LIMITED. NEVERTHELESS...THE DEGREE OF SHEAR IN THE ATMOSPHERE SHOULD ALLOW FOR ISOLATED SEVERE WEATHER FROM LATE THIS AFTERNOON INTO THE EARLY EVENING HOURS. LARGE HAIL TO THE SIZE OF NICKELS AND DAMAGING WINDS TO 60 MPH ARE THE MAIN SEVERE WEATHER THREATS. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ON SUNDAY SOUTH AND EAST OF A LINE FROM YANKTON TO SIOUX FALLS TO SLAYTON. A COLD FRONT WILL MOVE SOUTHEAST ACROSS THE REGION DURING THE DAY ON SUNDAY. THE ATMOSPHERE ALONG AND AHEAD OF THE COLD FRONT IS ONCE AGAIN EXPECTED TO BECOME UNSTABLE DURING THE LATE MORNING AND AFTERNOON HOURS. THUNDERSTORMS MAY DEVELOP BY LATE MORNING ALONG THE COLD FRONT AND MOVE SOUTHEAST THROUGH THE AFTERNOON. DAMAGING WINDS WILL BE THE MAIN THREAT FROM THESE STORMS...ALTHOUGH ISOLATED LARGE HAIL WILL ALSO BE POSSIBLE. THERE WILL ALSO BE A NUMBER OF THUNDERSTORM CHANCES FROM MONDAY THROUGH WEDNESDAY. AT THIS TIME THE SEVERE WEATHER THREAT FROM THESE STORMS IS UNCERTAIN...AND WILL BE BETTER DEFINED IN LATER OUTLOOKS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE POSSIBLE AFTER 200 PM CDT. && FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.CRH.NOAA.GOV/FSD. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK. 08
In the hours before
Special weather statement, Jun 12, 6:13 PM CDT, 3 hours 20 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 613 PM CDT SAT JUN 12 2004 IAZ021-022-031-032-NEZ013-014-122330- BUENA VISTA IA-CHEROKEE IA-DAKOTA NE-DIXON NE-IDA IA-WOODBURY IA- 613 PM CDT SAT JUN 12 2004 ...TORNADO WATCH CANCELLED FOR PARTS OF NORTHEAST NEBRASKA AND NORTHWEST IOWA... TORNADO WATCH NUMBER 446 HAS BEEN CANCELLED FOR DAKOTA AND DIXON COUNTY IN NORTHEAST NEBRASKA...AND FOR WOODBURY...IDA...CHEROKEE AND BUENA VISTA COUNTIES IN NORTHWEST IOWA.
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 13, 12:41 AM CDT | Severe Thunderstorm Warning | FSD | Sanborn | 34 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 2004Every severe thunderstorm warning in 2004
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.