Alert archive / South Dakota / Flash Flood Warnings in 1997
Flash Flood Warning 4, NWS Aberdeen, SD
NWS Aberdeen, SD issued this flash flood warning at Jul 25, 1997, 12:14 AM CDT for 4 counties in South Dakota. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 25, 1997, 12:14 AM CDT (05:14 UTC)
- Expired
- Jul 25, 1997, 3:15 AM CDT
- In force
- 3 hr
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
Counties Clark County, SD, Codington County, SD, Deuel County, SD, Hamlin County, SD
The radar
The Aberdeen radar (KABR), 119 km from the middle of the area, began a volume at 05:14 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 00:00Z, 5.2 hours before the alert went out and 96 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
- 2516 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 877 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 45 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KABR 250514 FFWABR SDC025-029-039-057-250815- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ABERDEEN SD 1214 AM CDT FRI JUL 25 1997 * FLASH FLOOD WARNING FOR DEUEL COUNTY - NORTHEASTERN SOUTH DAKOTA CLARK COUNTY - NORTHEASTERN SOUTH DAKOTA CODINGTON COUNTY - NORTHEASTERN SOUTH DAKOTA HAMLIN COUNTY - NORTHEASTERN SOUTH DAKOTA * UNTIL 315 AM CDT * SOME STREAMS AFFECTED FOSTER CREEK AREAS FROM GRASS LAKE THROUGH LAKE PELICAN TO DRY LAKE AREAS FROM BULLHEAD LAKE THROUGH FOX LAKE * CAUSE AND EFFECT SLOW MOVING THUNDERSTORMS PRODUCING 2 TO 4 INCHES OF RAIN PER HOUR WILL AFFECT THE AREA. DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD! CB/KH
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, Jul 24, 11:40 PM CDT, 34 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 1140 PM CDT THU JUL 24 1997 SDZ006-011-018-021-250700- BROWN-DAY-GRANT-SPINK- INCLUDING THE CITIES OF...ABERDEEN...WEBSTER...REDFIELD...MILBANK 1140 PM CDT THU JUL 24 1997 ...VERY HEAVY RAINS THROUGH 200 AM CDT... A SYSTEM OF VERY SLOW MOVING THUNDERSTORMS IS PRODUCING HEAVY RAINS AT THE RATE OF 2-3 INCHES PER HOUR WITH HIGHER AMOUNTS IN NORTH EASTERN SPINK COUNTY...AND EXTREME WESTERN BROWN COUNTY. WATER STANDING AND OVER SOME COUNTY ROADS HAS BEEN REPORTED BY LAW ENFORCEMENT. USE EXTREME CAUTION IF TRAVELING IN THE AREA. STANDING WATER ON ROADWAYS IS DIFFICULT TO SEE AT NIGHT. KH/RB
Special weather statement, Jul 24, 11:42 PM CDT, 32 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 1140 PM CDT THU JUL 24 1997 SDZ006-011-018-021-250700- BROWN-DAY-GRANT-SPINK- INCLUDING THE CITIES OF...ABERDEEN...WEBSTER...REDFIELD...MILBANK 1140 PM CDT THU JUL 24 1997 ...VERY HEAVY RAINS THROUGH 200 AM CDT... A SYSTEM OF VERY SLOW MOVING THUNDERSTORMS IS PRODUCING HEAVY RAINS AT THE RATE OF 2-3 INCHES PER HOUR WITH HIGHER AMOUNTS IN NORTH EASTERN SPINK COUNTY...AND EXTREME WESTERN BROWN COUNTY. WATER STANDING AND OVER SOME COUNTY ROADS HAS BEEN REPORTED BY LAW ENFORCEMENT. USE EXTREME CAUTION IF TRAVELING IN THE AREA. STANDING WATER ON ROADWAYS IS DIFFICULT TO SEE AT NIGHT. KH/RB
Special weather statement, Jul 24, 11:45 PM CDT, 29 minutes before
SPECIAL WEATHER STATEMENT...CORRECTION... NATIONAL WEATHER SERVICE ABERDEEN SD 1145 PM CDT THU JUL 24 1997 SDZ006-011-018-021-250700- BROWN-DAY-GRANT-SPINK- INCLUDING THE CITIES OF...ABERDEEN...WEBSTER...REDFIELD...MILBANK 1145 PM CDT THU JUL 24 1997 ...VERY HEAVY RAINS THROUGH 200 AM CDT... A SYSTEM OF VERY SLOW MOVING THUNDERSTORMS IS PRODUCING HEAVY RAINS AT THE RATE OF 2-3 INCHES PER HOUR WITH HIGHER AMOUNTS IN NORTH EASTERN SPINK COUNTY...AND EXTREME EASTERN BROWN COUNTY. WATER STANDING AND OVER SOME COUNTY ROADS HAS BEEN REPORTED BY LAW ENFORCEMENT. USE EXTREME CAUTION IF TRAVELING IN THE AREA. STANDING WATER ON ROADWAYS IS DIFFICULT TO SEE AT NIGHT. HARDING
Special weather statement, Jul 24, 11:46 PM CDT, 28 minutes before
SPECIAL WEATHER STATEMENT...CORRECTION... NATIONAL WEATHER SERVICE ABERDEEN SD 1145 PM CDT THU JUL 24 1997 SDZ006-011-018-021-250700- BROWN-DAY-GRANT-SPINK- INCLUDING THE CITIES OF...ABERDEEN...WEBSTER...REDFIELD...MILBANK 1145 PM CDT THU JUL 24 1997 ...VERY HEAVY RAINS THROUGH 200 AM CDT... A SYSTEM OF VERY SLOW MOVING THUNDERSTORMS IS PRODUCING HEAVY RAINS AT THE RATE OF 2-3 INCHES PER HOUR WITH HIGHER AMOUNTS IN NORTH EASTERN SPINK COUNTY...AND EXTREME EASTERN BROWN COUNTY. WATER STANDING AND OVER SOME COUNTY ROADS HAS BEEN REPORTED BY LAW ENFORCEMENT. USE EXTREME CAUTION IF TRAVELING IN THE AREA. STANDING WATER ON ROADWAYS IS DIFFICULT TO SEE AT NIGHT. HARDING
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 8:36 PM CDT | Severe Thunderstorm Warning | ABR | Jones | 64 min |
| Jul 24, 9:07 PM CDT | Severe Thunderstorm Warning | ABR | Clark, Spink | 63 min |
| Jul 24, 9:45 PM CDT | Tornado Warning | ABR | Clark | 30 min |
| Jul 24, 9:51 PM CDT | Severe Thunderstorm Warning | ABR | Codington, Hamlin | 94 min |
| Jul 24, 11:21 PM CDT | Severe Thunderstorm Warning | ABR | Lyman | 34 min |
| Jul 25, 12:07 AM CDT | Severe Thunderstorm Warning | ABR | Hamlin | 48 min |
| Jul 25, 4:37 PM CDT | Severe Thunderstorm Warning | ABR | Campbell, McPherson | 58 min |
| Jul 25, 4:51 PM CDT | Tornado Warning | ABR | McPherson | 44 min |
| Jul 25, 5:37 PM CDT | Tornado Warning | ABR | Edmunds, McPherson | 58 min |
| Jul 25, 6:22 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 63 min |
| Jul 25, 6:36 PM CDT | Severe Thunderstorm Warning | ABR | Edmunds | 64 min |
| Jul 25, 6:45 PM CDT | Tornado Warning | ABR | Edmunds | 50 min |
| Jul 25, 6:56 PM CDT | Tornado Warning | ABR | Brown | 34 min |
Nearby
Flash Flood Warnings in South Dakota, 1997Every flash flood warning in 1997
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.