Alert archive / South Dakota / Flash Flood Warnings in 1993
Flash Flood Warning 6, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this flash flood warning at Jun 29, 1993, 3:30 PM CDT for McCook County, Minnehaha County, South Dakota. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jun 29, 1993, 3:30 PM CDT (20:30 UTC)
- Expired
- Jun 29, 1993, 6:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
Counties McCook County, SD, Minnehaha County, SD
The nearest sounding before it
Aberdeen, SD (KHON), launched 12:00Z, 8.5 hours before the alert went out and 172 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
- 145 J/kg
- Mixed-layer CIN
- -368 J/kg
- Mixed-layer LCL
- 812 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 237 m²/s²
- 0-3 km storm-relative helicity
- 291 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFSD 292032 FFWFSD SDC087-099-292330- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 330 PM CDT TUE JUN 29 1993 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 630 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHEAST SOUTH DAKOTA ...MCCOOK COUNTY...MINNEHAHA COUNTY AT 329 PM CDT RAINFALL AMOUNTS UP TO 4 INCHES HAVE OCCURRED OVER NORTHERN MCCOOK COUNTY AND NORTHEAST MINNEHAHA COUNTY. FLASH FLOODING IS OCCURRING IN SALEM...WHICH IS ABOUT 30 MILES EAST OF MITCHELL. NUMEROUS COUNTY ROADS IN NORTHERN MCCOOK COUNTY ARE UNDERWATER. IN MINNEHAHA COUNTY SKUNK CREEK IS OVERFLOWING ITS BANKS BETWEEN COLTON AND LYONS. NEAR 2 INCHES OF RAIN FELL AT THE EROS DATA CENTER...WHICH IS ABOUT 15 MILES NORTHEAST OF SIOUX FALLS. ADDITIONAL RAIN IS EXPECTED THERE THE NEXT FEW HOURS. A FLASH FLOOD WARNING MEANS FLASH FLOODING IS OCCURING OR IS IMMINENT. ACT QUICKLY TO SAVE YOURSELF. GET OUT OF LOWLAND AREAS SUBJECT TO FLOODING. AVOID ALREADY FLOODED AREAS. CAMPERS ALONG STREAMS AND SMALL RIVERS SHOULD MOVE TO HIGHER GROUND. MENTZER
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Local storm report, Jun 29, 2:25 PM CDT, 1 hour 5 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
220 PM CDT TUE JUN 29 1993
TIME COUNTY...LOCATION AND STATE CHARACTER OF STORM...DAMAGE
.......................................................................
100 PM CDT DAVISON/SD DIME SIZE HAIL 8 MILES NORTH OF MITCHELL
103 PM CDT AURORA/SD 3/4-1 INCH HAIL 5 MILES WEST OF PLANKINTON
220 PM CDT LAKE/SD 3/4 INCH HAIL AT MADISON
215 PM CDT MINNEHAHA/SD GOLFBALL SIZE HAIL AT THE EROS DATA
CENTER 15 MILES NORTHEAST OF SIOUX FALLS
KRIEHNSpecial weather statement, Jun 29, 2:36 PM CDT, 54 minutes before
IAZ013-020-021-031-032-043-NEZ094>096-SDZ066-292045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 236 PM CDT TUE JUN 29 1993 ...THUNDERSTORMS CONTINUE... AT 235 PM SCATTERED THUNDERSTORMS WERE NORTH OF A LINE FROM MASKELL NEBRASKA TO MARCUS IOWA THEN SOUTH TO MOORHEAD IOWA. THE HEAVIEST RAIN WAS BETWEEN CHEROKEE AND SANBORN IOWA. THE RAIN WAS MOVING EAST AT 25 MILES AN HOUR. A TORNADO WATCH IS IN EFFECT UNTIL 8 PM CDT FOR PEOPLE IN OBRIEN AND SIOUX COUNTIES IN IOWA AND FOR UNION COUNTY SOUTH DAKOTA. J QUINN
Special weather statement, Jun 29, 2:37 PM CDT, 53 minutes before
IAZ013-020-021-031-032-043-NEZ094>096-SDZ066-292045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 236 PM CDT TUE JUN 29 1993 ...THUNDERSTORMS CONTINUE... AT 235 PM SCATTERED THUNDERSTORMS WERE NORTH OF A LINE FROM MASKELL NEBRASKA TO MARCUS IOWA THEN SOUTH TO MOORHEAD IOWA. THE HEAVIEST RAIN WAS BETWEEN CHEROKEE AND SANBORN IOWA. THE RAIN WAS MOVING EAST AT 25 MILES AN HOUR. A TORNADO WATCH IS IN EFFECT UNTIL 8 PM CDT FOR PEOPLE IN OBRIEN AND SIOUX COUNTIES IN IOWA AND FOR UNION COUNTY SOUTH DAKOTA. J QUINN
Special weather statement, Jun 29, 2:48 PM CDT, 42 minutes before
SDZ018-292030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 245 PM CDT TUE JUN 29 1993 ...A TORNADO WATCH IS IN EFFECT UNTIL 5 PM CDT... AT 245 PM CDT...A LINE OF THUNDERSTORMS WAS DEVELOPING OVER PARTS OF SOUTHWEST MINNESOTA AND NORTHWEST IOWA. THE LINE OF STORMS EXTENDED FROM SOUTH OF LUVERNE MN THROUGH SIOUX CENTER IA. THESE STORMS ARE CAPABLE OF PRODUCING HAIL...STRONG WINDS...HEAVY RAIN AND DANGEROUS LIGHTNING. THE STORMS WERE MOVING EAST AT 20 MILES AN HOUR...AND SHOULD PASS OVER GEORGE IOWA...HULL IOWA ANDELLSWORTH MN BY 300 PM. IF YOU ARE IN THE PATH OF THESES STORMS BE PREPARED TO GO TO SHELTER QUICKLY. THESE STORMS ARE CONTINUING TO DEVELOP AND MAY REQ.UIRE A WARNING SOON. STAY TUNED TO THIS STATION FOR ANY FURTHER STATEMENTS OR WARNINGS. EDDY
Special weather statement, Jun 29, 3:06 PM CDT, 24 minutes before
IAZ013-020-021-031-032-043-NEZ094>096-SDZ066-292100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 306 PM CDT TUE JUN 29 1993 ...STRONG THUNDERSTORMS WERE MOVING INTO OBRIEN COUNTY... AT 305 PM STRONG THUNDERSTORMS WERE 55 MILES NORTHWEST OF SIOUX CITY OR JUST WEST OF SHELDON IOWA. THEY WILL MOVE EAST AT 25 MILES AN HOUR...PASSING THROUGH SHELDON AND SANBORN AND REACHING HARTLEY AROUND 345 PM. HEAVY RAIN AND DANGEROUS LIGHTNING WILL ACCOMPANY THOSE STORMS. PEOPLE IN NORTHERN OBRIEN COUNTY SHOULD BE ALERT AND MOVE QUICKLY TO A PLACE OF SAFETY IF THREATENING WEATHER APPROACHES. A TORNADO WATCH IS IN EFFECT UNTIL 8 PM FOR OBRIEN AND SIOUX COUNTIES IN IOWA AND FOR UNION COUNTY SOUTH DAKOTA. J QUINN
Special weather statement, Jun 29, 3:07 PM CDT, 23 minutes before
IAZ013-020-021-031-032-043-NEZ094>096-SDZ066-292100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 306 PM CDT TUE JUN 29 1993 ...STRONG THUNDERSTORMS WERE MOVING INTO OBRIEN COUNTY... AT 305 PM STRONG THUNDERSTORMS WERE 55 MILES NORTHWEST OF SIOUX CITY OR JUST WEST OF SHELDON IOWA. THEY WILL MOVE EAST AT 25 MILES AN HOUR...PASSING THROUGH SHELDON AND SANBORN AND REACHING HARTLEY AROUND 345 PM. HEAVY RAIN AND DANGEROUS LIGHTNING WILL ACCOMPANY THOSE STORMS. PEOPLE IN NORTHERN OBRIEN COUNTY SHOULD BE ALERT AND MOVE QUICKLY TO A PLACE OF SAFETY IF THREATENING WEATHER APPROACHES. A TORNADO WATCH IS IN EFFECT UNTIL 8 PM FOR OBRIEN AND SIOUX COUNTIES IN IOWA AND FOR UNION COUNTY SOUTH DAKOTA. J QUINN
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 8:00 AM CDT | Severe Thunderstorm Warning | FSD | Mellette | 45 min |
| Jun 29, 8:50 AM CDT | Severe Thunderstorm Warning | FSD | Mellette | 40 min |
| Jun 29, 8:57 AM CDT | Severe Thunderstorm Warning | FSD | Mellette | 33 min |
| Jun 29, 9:30 AM CDT | Severe Thunderstorm Warning | FSD | Mellette | 45 min |
| Jun 29, 10:19 AM CDT | Severe Thunderstorm Warning | FSD | Tripp | 41 min |
| Jun 29, 10:57 AM CDT | Severe Thunderstorm Warning | FSD | Tripp | 24 min |
| Jun 29, 11:46 AM CDT | Severe Thunderstorm Warning | FSD | Brule | 44 min |
| Jun 29, 1:07 PM CDT | Severe Thunderstorm Warning | FSD | McCook | 38 min |
| Jun 29, 1:38 PM CDT | Severe Thunderstorm Warning | FSD | Hanson | 37 min |
| Jun 29, 1:58 PM CDT | Severe Thunderstorm Warning | FSD | Lake | 32 min |
| Jun 29, 2:10 PM CDT | Severe Thunderstorm Warning | FSD | McCook | 50 min |
| Jun 29, 2:38 PM CDT | Severe Thunderstorm Warning | FSD | Minnehaha, Moody | 37 min |
| Jun 29, 3:49 PM CDT | Flash Flood Warning | FSD | Moody | 3 hr |
| Jun 29, 4:32 PM CDT | Tornado Warning | FSD | Tripp | 28 min |
| Jun 29, 4:57 PM CDT | Tornado Warning | FSD | Tripp | 33 min |
| Jun 29, 6:30 PM CDT | Flash Flood Warning | FSD | Minnehaha, Moody | 3 hr |
| Jun 29, 6:30 PM CDT | Flash Flood Warning | FSD | McCook | 3 hr |
| Jun 29, 6:41 PM CDT | Severe Thunderstorm Warning | FSD | Charles Mix | 28 min |
Nearby
Flash Flood Warnings in South Dakota, 1993Every flash flood warning in 1993
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.