Alert archive / Iowa / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 221, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this severe thunderstorm warning at May 28, 2004, 11:45 PM CDT for Dickinson County, Iowa. It was in force for 30 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 28, 2004, 11:45 PM CDT (04:45 UTC)
- Expired
- May 29, 2004, 12:15 AM CDT
- In force
- 30 min
- Issued by
- NWS Sioux Falls, SD
- Area
- Counties, with a storm outline in the text
County Dickinson County, IA
The radar
The Sioux Falls radar (KFSD), 125 km from the middle of the area, began a volume at 04:47 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 28, 11:50 PM CDT | HAIL 0.75 | 2 Se Lake Park, IA | |
| May 28, 11:50 PM CDT | HAIL 0.75 | 2 Se Lake Park, IA | |
| May 28, 11:50 PM CDT | HAIL 0.75 | 2 Se Lake Park, IA |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 28, 9:50 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 4.8 hours before the alert went out and 206 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
- 1608 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 72 m²/s²
- 0-3 km storm-relative helicity
- 163 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
687 WUUS53 KFSD 290445 SVRFSD IAC059-290515- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 1145 PM CDT FRI MAY 28 2004 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... DICKINSON COUNTY IN NORTHWEST IOWA * UNTIL 1215 AM CDT * AT 1142 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL. THIS STORM WAS LOCATED NEAR LAKE PARK...OR ABOUT 11 MILES WEST OF SPIRIT LAKE...MOVING EAST AT 35 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... WEST OKOBOJI AROUND 1150 PM CDT OKOBOJI...WAHPETON...ARNOLDS PARK...MILFORD AROUND 1155 PM CDT ORLEANS...SPIRIT LAKE AROUND MIDNIGHT CDT TERRIL AROUND 1205 AM CDT SUPERIOR AROUND 1215 AM CDT AT 1140 PM CDT...NICKEL SIZE HAIL WAS REPORTED IN HARRIS. THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS. LAT...LON 4349 9539 4328 9537 4326 9494 4349 9493 $$ 08
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 May 28, 3:15 PM CDT, 8 hours 30 minutes earlier.
Area forecast discussion, May 28, 3:15 PM CDT, 8 hours 30 minutes before
AREA FORECAST DISCUSSION FOR SOUTHEAST SD/SOUTHWEST MN/NORTHWEST IA NATIONAL WEATHER SERVICE SIOUX FALLS SD 315 PM CDT FRI MAY 28 2004 .DISCUSSION... WARM FRONT TO THE SOUTH WILL BE MOVING NORTH TONIGHT. EXPECT TSTMS TO DEVELOP ALONG FRONT NEAR MISSOURI LATER THIS AFTERNOON AND THEN SPREAD NORTH AS FRONT MOVES NORTH. A FEW STORMS COULD BE SEVERE THIS EVENING...MAINLY EAST OF I29. THE QUESTION IS HOW FAR NORTH THE WARM FRONT WILL MOVE BY SATURDAY MRNG...FOR NOW MOVE INTO NORTH PARTS OF CWA. THIS WILL END THE CHANCE OF TSTMS IN SOUTH CENTRAL SD LATE EVENING AND OVER REST OF AREA BY MORNING. SOUTH WINDS WILL STAY UP TNGT KEEPING TEMPS UP. ON SATURDAY A COLD FRONT TO THE WEST WILL MOVE INTO CENTRAL SD BY AROUND NOON...WITH MODELS TRYING TO SHOW THE WARM FRONT EXTENDING IN SOUTHWEST MN. GOOD SOUTH WINDS OVER CWA AND WITH PARTLY CLOUDY SKIES TEMPS SHOULD WARM INTO THE 80S. GOOD MOISTURE OVER THE AREA...ESPECIALLY AFTER RAIN TONIGHT AND TSTMS SHOULD DEVELOP IN WESTERN AREA BY AROUND NOON AHEAD OF FRONT. AS FRONT MOVES EAST TSTMS SHOULD INCREASE OVER AREA. TSTMS LIKELY GENERALLY FROM I29 AND EAST BY LATE AFTN INTO EVENING. THIS ALSO BEST AREA FOR SEVERE WEATHER WITH HEAVY RAIN POSSIBLE. CHANCE OF TSTMS WILL BE DECREASING FROM WEST TO EAST SATURDAY NIGHT BEHIND FRONT WITH WESTERN AREAS DOWN TO SHOWERS AFTER MIDNIGHT. SUNDAY MRNG SHWRS OVER CWA WITH ONLY SOME ISOLATED TSTMS OVER NW IA AND SW MN EARLY. ENDED SHWRS OVER ALL BUT THE EAST BY AROUND NOON AND IN LATE AFTN EAST. TEMPS ON SUNDAY WILL BE 10 TO 15 DEGREES COOLER THAN SATURDAY. WENT DRY SUNDAY NIGHT INTO MONDAY MRNG WITH COOLER MORE STABLE AIR. SUNDAY AFTN AN UPPER WAVE SWINGS THROUGH AND WENT FOR A CHANCE OF SHWRS. AS WAVE MOVES THROUGH SHOWERS WILL BE ENDING FROM WEST TO EAST...EXCEPT IN FAR EAST WHERE CONTINUED THEM INTO TUESDAY. KEPT HIGHS BELOW NORMAL ON MONDAY. IN THE LONG RANGE..SHWRS ENDING IN EAST BY TUESDAY EVENING AS HIGH PRESSURE PUSHES IN FROM WEST WITH MORE ZONAL FLOW. THIS WILL KEEP IT DRY WEDNESDAY AND THURSDAY AS TEMPS WARM BACK UP TO NEAR NORMAL. RIDGE MOVING FROM THE WEST ON THURSDAY AS WINDS BECOME MORE SOUTHERLY. KEPT IT DRY ON THURSDAY WITH ABOVE NORMAL TEMPS. && .FSD...WATCHES/WARNINGS/ADVISORIES... SD...NONE. MN...NONE. IA...NONE. NE...NONE. && WB
Hazardous weather outlook, May 28, 1:52 PM CDT, 9 hours 53 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SIOUX FALLS SD 152 PM CDT FRI MAY 28 2004 SDZ038>040-050-052>071-MNZ071-072-080-081-089-090-097-098- IAZ001>003-012>014-020>022-031-032-NEZ013-014-291200- 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- 152 PM CDT FRI MAY 28 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST SOUTH DAKOTA... SOUTHWEST MINNESOTA...NORTHWEST IOWA...AND NORTHEAST NEBRASKA. .DAY ONE...TODAY AND TONIGHT THUNDERSTORMS... ISOLATED THUNDERSTORMS WILL BEGIN TO DEVELOP BETWEEN 4 PM AND 6 PM SOUTH OF A LINE FROM WESSINGTON SPRINGS TO SPENCER. THUNDERSTORMS WILL BECOME MORE NUMEROUS ALONG AND EAST OF INTERSTATE 29 TOWARD SUNSET. THE STORMS ARE EXPECTED TO REACH THE INTERSTATE 90 CORRIDOR IN MINNESOTA AROUND 8 PM...AND MARSHALL AFTER 10 PM. THE PRIMARY THREAT FROM THESE STORMS WILL BE LARGE HAIL...WITH A FEW STORMS HAVING THE POTENTIAL TO PRODUCE GOLF BALL SIZED HAIL. WHILE THE ENTIRE AREA COULD SEE LARGE HAIL...THE BEST CHANCE WILL BE EAST OF A LINE FROM YANKTON TO BROOKINGS SOUTH DAKOTA. THERE COULD ALSO BE AN ISOLATED WIND GUST IN EXCESS OF 60 MPH NEAR THE MISSOURI RIVER INTO NORTHWEST IOWA PRIOR TO SUNSET. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY THERE IS THE POTENTIAL FOR A SEVERE WEATHER OUTBREAK ON SATURDAY AFTERNOON AND EVENING. A MODERATE RISK OF SEVERE WEATHER EXISTS EAST OF LINE FROM BROOKINGS TO YANKTON SOUTH DAKOTA. THUNDERSTORMS ARE EXPECTED TO BEGIN DEVELOPING BY EARLY AFTERNOON NEAR THE JAMES RIVER AND MOVE EAST THROUGH THE EVENING. LARGE HAIL AND DAMAGING WINDS SHOULD BE THE MAIN THREATS. THE LARGEST THREAT FOR DAMAGING WINDS WILL BE EAST OF A LINE FROM DE SMET TO YANKTON SOUTH DAKOTA. THERE WILL ALSO BE A TORNADO THREAT...PRIMARILY IN SOUTHWEST MINNESOTA AND NORTHWEST IOWA LATE SATURDAY AFTERNOON AND EVENING. THERE IS ALSO THE POTENTIAL FOR HEAVY RAINS PRODUCING FLASH FLOODING SATURDAY EVENING AND SATURDAY NIGHT. THE MOST LIKELY AREA FOR HEAVY RAIN WILL BE ALONG AND EAST OF INTERSTATE 29. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL BE POSSIBLE AFTER 4 PM SOUTH OF A LINE FROM WESSINGTON SPRINGS SOUTH DAKOTA TO SPENCER IOWA. SPOTTER ACTIVATION WILL BE LIKELY AFTER 7 PM EAST OF A LINE FROM YANKTON TO BROOKINGS. && FOR MORE INFORMATION PLEASE VISIT OUR WEBSITE AT WWW.CRH.NOAA.GOV/FSD. THIS INCLUDES THE GRAPHICAL HAZARDOUS WEATHER OUTLOOK. SCHUMACHER
In the hours before
Local storm report, May 28, 8:54 PM CDT, 2 hours 51 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
854 PM CDT FRI MAY 28 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0505 PM HAIL SIOUX CITY 42.50N 96.39W
05/28/2004 1.75 INCH WOODBURY IA TRAINED SPOTTER
NORTHWEST SIDE OF SIOUX CITY
&&
WBLocal storm report, May 28, 9:04 PM CDT, 2 hours 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
904 PM CDT FRI MAY 28 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0859 PM HAIL SIOUX CITY 42.50N 96.39W
05/28/2004 1.75 INCH WOODBURY IA TRAINED SPOTTER
2 MILES NORTH NORTHEAST OF SIOUX CITY AIRPORT
&&
WBLocal storm report, May 28, 9:05 PM CDT, 2 hours 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
905 PM CDT FRI MAY 28 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0837 PM FUNNEL CLOUD 4 NE BERESFORD 43.12N 96.72W
05/28/2004 LINCOLN SD TRAINED SPOTTER
&&
WBLocal storm report, May 28, 9:46 PM CDT, 1 hour 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
946 PM CDT FRI MAY 28 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0753 PM TORNADO 2 NW CENTERVILLE 43.14N 96.99W
05/28/2004 TURNER SD TRAINED SPOTTER
2 TORNADOES NW OF CENTERVILLE EXIT ON INTERSTATE 29
0755 PM TORNADO 3 W CENTERVILLE 43.12N 97.02W
05/28/2004 TURNER SD LAW ENFORCEMENT
TREES DOWN
0805 PM HAIL LENNOX 43.35N 96.90W
05/28/2004 0.75 INCH LINCOLN SD TRAINED SPOTTER
0815 PM FUNNEL CLOUD 3 N JACKSON 42.49N 96.57W
05/28/2004 DAKOTA NE PUBLIC
0820 PM FUNNEL CLOUD 4 W ROCK VALLEY 43.20N 96.38W
05/28/2004 SIOUX IA TRAINED SPOTTER
0858 PM HAIL SERGEANT BLUFF 42.40N 96.36W
05/28/2004 1.75 INCH WOODBURY IA LAW ENFORCEMENT
0907 PM HAIL 8 E BERESFORD 43.08N 96.62W
05/28/2004 0.88 INCH UNION SD TRAINED SPOTTER
0920 PM TORNADO 3 SW HAWARDEN 42.97N 96.52W
05/28/2004 UNION SD TRAINED SPOTTER
&&
WBLocal storm report, May 28, 11:12 PM CDT, 33 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1112 PM CDT FRI MAY 28 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0704 PM TORNADO 9 WSW HURLEY 43.23N 97.26W
05/28/2004 TURNER SD EMERGENCY MNGR
0712 PM HAIL SIOUX FALLS 43.54N 96.73W
05/28/2004 0.75 INCH MINNEHAHA SD FIRE DEPT/RESCUE
0720 PM TORNADO 6 NE DAVIS 43.32N 96.91W
05/28/2004 LINCOLN SD PUBLIC
SHED DESTROYED
0734 PM TORNADO 3 SW LENNOX 43.32N 96.94W
05/28/2004 TURNER SD LAW ENFORCEMENT
0737 PM TORNADO 2 W CANTON 43.30N 96.62W
05/28/2004 LINCOLN SD LAW ENFORCEMENT
0738 PM HAIL 1 W MASKELL 42.69N 97.00W
05/28/2004 0.88 INCH DIXON NE NWS EMPLOYEE
0742 PM TSTM WND GST 3 S LENNOX 43.31N 96.90W
05/28/2004 0 MPH LINCOLN SD EMERGENCY MNGR
TRAILER AND BOAT FLIPPED OFF ROAD.
0744 PM FUNNEL CLOUD TEA 43.45N 96.84W
05/28/2004 LINCOLN SD TRAINED SPOTTER
JUST TO THE WEST OF TEA
0800 PM HAIL LENNOX 43.35N 96.90W
05/28/2004 0.75 INCH LINCOLN SD TRAINED SPOTTER
0814 PM TORNADO 4 NW BERESFORD 43.12N 96.84W
05/28/2004 LINCOLN SD TRAINED SPOTTER
0818 PM HAIL 10 W CANTON 43.30N 96.78W
05/28/2004 0.75 INCH LINCOLN SD TRAINED SPOTTER
0828 PM TORNADO 6 NE CENTERVILLE 43.18N 96.87W
05/28/2004 LINCOLN SD LAW ENFORCEMENT
0832 PM FUNNEL CLOUD SIOUX CITY 42.50N 96.39W
05/28/2004 WOODBURY IA EMERGENCY MNGR
WEST SIDE OF SIOUX CITY
0841 PM TORNADO 10 SW WORTHING 43.23N 96.91W
05/28/2004 LINCOLN SD NWS EMPLOYEE
3 TORNADOES
0851 PM FUNNEL CLOUD SIOUX CITY 42.50N 96.39W
05/28/2004 WOODBURY IA TRAINED SPOTTER
0853 PM TORNADO BERESFORD 43.08N 96.78W
05/28/2004 UNION SD PUBLIC
0855 PM HAIL SIOUX CITY 42.50N 96.39W
05/28/2004 2.00 INCH WOODBURY IA TRAINED SPOTTER
2 INCH HAIL AT MORNINGSIDE IN SIOUX CITY
0938 PM HAIL TERRIL 43.31N 94.97W
05/28/2004 0.88 INCH DICKINSON IA BROADCAST MEDIA
DIME TO NICKEL SIZE HAIL
0956 PM HAIL WORTHING 43.33N 96.76W
05/28/2004 0.75 INCH LINCOLN SD TRAINED SPOTTER
1015 PM HAIL LE MARS 42.79N 96.17W
05/28/2004 0.75 INCH PLYMOUTH IA BROADCAST MEDIA
1048 PM HAIL 9 W QUIMBY 42.63N 95.82W
05/28/2004 0.88 INCH CHEROKEE IA TRAINED SPOTTER
&&
WBLocal storm report, May 28, 11:27 PM CDT, 18 minutes before
PRELIMINARY LOCAL STORM REPORT ... CORRECTION
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1127 PM CDT FRI MAY 28 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0851 PM HAIL SIOUX CITY 42.50N 96.39W
05/28/2004 1.75 INCH WOODBURY IA TRAINED SPOTTER
NORTHWEST SIDE OF SIOUX CITY
&&
MGThe office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 7:47 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 43 min |
| May 28, 8:04 PM CDT | Tornado Warning | FSD | Sioux | 41 min |
| May 28, 8:26 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 49 min |
| May 28, 8:37 PM CDT | Tornado Warning | FSD | Woodbury | 23 min |
| May 28, 8:44 PM CDT | Tornado Warning | FSD | Sioux | 46 min |
| May 28, 8:59 PM CDT | Tornado Warning | FSD | Woodbury | 31 min |
| May 28, 9:27 PM CDT | Tornado Warning | FSD | Sioux | 33 min |
| May 28, 9:31 PM CDT | Tornado Warning | FSD | Woodbury | 29 min |
| May 28, 9:35 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 25 min |
| May 28, 9:48 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 27 min |
| May 28, 9:57 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 33 min |
| May 28, 9:57 PM CDT | Tornado Warning | FSD | Woodbury | 18 min |
| May 28, 10:15 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 15 min |
| May 28, 10:17 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 13 min |
| May 28, 10:30 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 45 min |
| May 28, 10:32 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 28 min |
| May 28, 10:58 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 62 min |
| May 28, 11:13 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 32 min |
| May 29, 12:02 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista | 28 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.