Alert archive / South Dakota / Flash Flood Warnings in 1993
Flash Flood Warning 13, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this flash flood warning at Jun 29, 1993, 6:30 PM CDT for McCook County, South Dakota. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jun 29, 1993, 6:30 PM CDT (23:30 UTC)
- Expired
- Jun 29, 1993, 9:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Sioux Falls, SD
- Area
- Whole counties
County McCook County, SD
The nearest sounding before it
Aberdeen, SD (KHON), launched 12:00Z, 11.5 hours before the alert went out and 159 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 292333 FFWFSD IAC119-143-MNC101-105-117-133-SDC101-087-099-300200- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SIOUX FALLS SD 630 PM CDT TUE JUN 29 1993 THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 900 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHWEST IOWA ...LYON COUNTY...OSCEOLA COUNTY IN SOUTHWEST MINNESOTA ...MURRAY COUNTY...NOBLES COUNTY...PIPESTONE COUNTY ...ROCK COUNTY IN EAST CENTRAL AND SOUTHEAST SOUTH DAKOTA ...MOODY COUNTY...MCCOOK COUNTY...MINNEHAHA COUNTY THE FLASH FLOOD WARNING OVER THE TRI-STATE AREA HAS BEEN EXTENDED UNTIL 9 PM CDT. THUNDERSTORMS PRODUCED HEAVY RAIN ACROSS MUCH OF THE TRI-STATE AREA THIS AFTERNOON. RAINFALL AMOUNTS BETWEEN 1 AND 3 INCHES WERE COMMON...BUT LOCAL AMOUNTS NEAR 5 INCHES HAVE ALSO BEEN REPORTED. MANY COUNTY ROADS REMAIN UNDERWATER...AND SOME CREEKS ARE FLOWING OUT OF THEIR BANKS. ALTHOUGH THE RAIN HAS ENDED OVER MOST AREAS... THIS REMAINS A DANGEROUS SITUATION DUE TO THE HIGH WATER LEVELS. DO NOT VENTURE TOO CLOSE TO STREAMS AND CREEKS. RAPID CURRENTS CAN QUICKLY SWEEP YOU AWAY. DO NOT DRIVE YOUR VEHICLE INTrO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. 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
Special weather statement, Jun 29, 4:45 PM CDT, 1 hour 45 minutes before
MNZ017-292230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX FALLS SD 440 PM CDT TUE JUN 29 1993 ...A TORNADO WATCH IS IN EFFECT FOR MUCH OF SOUTHERN SOUTH DAKOTA UNTIL 11 PM CDT AND FOR THE ADJACENT PARTS OF SOUTHWEST MINNESOTA AND NORTHWEST IOWA UNTUL 11 PM CDT... AT 440 PM CDT STRONG THUNDERSTORMS WERE LOCATED JUST WEST OF WORTHINGTON IN NOBLES COUNTY OF SOUTHWEST MINNESOTA. THESE STORMS WERE MOVING TO THE EAST AT 20 MILES AN HOUR AND WERE PRODUCING VERY HEAVY RAIN AND ARE CAPABLE OF PRODUCING HAIL...STRONG WINDS...AND DANGEROUS LIGHTNING. PEOPLE IN NOBLES COUNTY INCLUDING THE COMMUNITES OF WORTHINGTON AND BREWSTER SHOULD BE ON THE LOOKOUT FOR THESE STORMS UNTIL 530 PM CDTL. STAY TUNED TO YOUR LOCAL TV AND RADIO STATION FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. BUSS
Special weather statement, Jun 29, 4:51 PM CDT, 1 hour 39 minutes before
MNZ017-292230- SPECIAL WEATHER STATEMENT...HEADLINE CORRECTION NATIONAL WEATHER SERVICE SIOUX FALLS SD 440 PM CDT TUE JUN 29 1993 ...A TORNADO WATCH IS IN EFFECT FOR MUCH OF SOUTHERN SOUTH DAKOTA UNTIL 11 PM CDT AND FOR THE ADJACENT PARTS OF SOUTHWEST MINNESOTA AND NORTHWEST IOWA UNTUL 8 PM CDT... AT 440 PM CDT STRONG THUNDERSTORMS WERE LOCATED JUST WEST OF WORTHINGTON IN NOBLES COUNTY OF SOUTHWEST MINNESOTA. THESE STORMS WERE MOVING TO THE EAST AT 20 MILES AN HOUR AND WERE PRODUCING VERY HEAVY RAIN AND ARE CAPABLE OF PRODUCING HAIL...STRONG WINDS...AND DANGEROUS LIGHTNING. PEOPLE IN NOBLES COUNTY INCLUDING THE COMMUNITES OF WORTHINGTON AND BREWSTER SHOULD BE ON THE LOOKOUT FOR THESVE STORMS UNTIL 530 PM CDT. STAY TUNED TO YOUR LOCAL TV AND RADIO STATION FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS. BUSS
Special weather statement, Jun 29, 5:09 PM CDT, 1 hour 21 minutes before
IAZ013-020-021-031-032-043-NEZ094>096-SDZ066-292200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 509 PM CDT TUE JUN 29 1993 ...STRONG THUNDERSTORMS AND HEAVY RAIN NORTH AND EAST OF SIOUX CITY... AT 505 PM STRONG THUNDERSTORMS AND HEAVY RAIN WERE IN A NARROW BAND FROM NEAR SHELDON TO ARTHUR IOWA...60 MILES EAST OF SIOUX CITY. THE BAND WAS MOVING EAST AT 25 MILES AN HOUR. DANGEROUS LIGHTNING AND SMALL HAIL MAY ALSO ACCOMPANY THESE STORMS. THEY WILL MOVE EAST OF OBRIEN AND CHEROKEE COUNTIES AROUND 5 PM. A TORNADO WATCH IS IN EFFECT UNTIL 8 PM FOR OBRIEN AND SIOUX COUNTIES IN IOWA AND FOR UNION COUNTY SOUTH DAKOTA. A FLASH FLOOD WATCH IS IN EFFECT UNTIL MIDNIGHT. J QUINN
Special weather statement, Jun 29, 5:10 PM CDT, 1 hour 20 minutes before
IAZ013-020-021-031-032-043-NEZ094>096-SDZ066-292300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 509 PM CDT TUE JUN 29 1993 ...STRONG THUNDERSTORMS AND HEAVY RAIN NORTH OF SIOUX CITY... AT 505 PM STRONG THUNDERSTORMS AND HEAVY RAIN WERE IN A NAROOW BAND FROM SPINK SOUTH DAKOTA...30 MILES NORTHWEST OF SIOUX CITY...TO HARTLEY IOWA. THE BAND WAS MOVING EAST AT 25 MILES AN HOUR...BUT WAS BUILDING TO THE SOUTHWEST. OVER 2 INCHES jOF RAIN IN A SHORT TIME IS POSSIBLE WITH SOME OF THE STORMS. ALSO DANGEROUS LIGHTNING...WIND GUSTS TO AROUND 40 MILES AN HOUR AND SOME SMALL HAIL WILL ACCOMPANY THE STORMS. J QUINN
Special weather statement, Jun 29, 5:34 PM CDT, 56 minutes before
IAZ013-020-021-031-032-043-NEZ094>096-SDZ066-292400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 534 PM CDT TUE JUN 29 1993 ...STRONG THUNDERSTORMS AND HEAVY RAIN NORTH OF SIOUX CITY... AT 530 PM STRONG THUNDERSTORMS AND HEAVY RAIN WERE FROM GAZA IOWA OR 55 MILES NORTHEAST OF SIOUX CITY TO WESTFIELD...20 MILES NORTH OF SIOUX CITY. THE STORMS WERE MOVING EAST AT 25 MILES AN HOUR. VERY HEAVY RAIN IN A SHORT PERIOD OF TIME IS POSSIBLE WITH THESE STORMS. ALSO DANGEROUS LIGHTNING...WIND GUSTS TO AROUND 40 MILES AN HOUR AND SMALL HAIL MAY ACCOMPANY THE STORMS. HUMPHREY
Special weather statement, Jun 29, 5:35 PM CDT, 55 minutes before
IAZ013-020-021-031-032-043-NEZ094>096-SDZ066-292400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SIOUX CITY IA 534 PM CDT TUE JUN 29 1993 ...STRONG THUNDERSTORMS AND HEAVY RAIN NORTH OF SIOUX CITY... AT 530 PM STRONG THUNDERSTORMS AND HEAVY RAIN WERE FROM GAZA IOWA OR 55 MILES NORTHEAST OF SIOUX CITY TO WESTFIELD...20 MILES NORTH OF SIOUX CITY. THE STORMS WERE MOVING EAST AT 25 MILES AN HOUR. VERY HEAVY RAIN IN A SHORT PERIOD OF TIME IS POSSIBLE WITH THESE STORMS. ALSO DANGEROUS LIGHTNING...WIND GUSTS TO AROUND 40 MILES AN HOUR AND SMALL HAIL MAY ACCOMPANY THE STORMS. HUMPHREY
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, 3:30 PM CDT | Flash Flood Warning | FSD | McCook, Minnehaha | 3 hr |
| 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, 6:41 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.