Alert archive / South Dakota / Flash Flood Warnings in 1986
Flash Flood Warning 2, NWS Aberdeen, SD
NWS Aberdeen, SD issued this flash flood warning at Apr 13, 1986, 10:04 PM CST for Codington County, Deuel County, South Dakota. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Apr 13, 1986, 10:04 PM CST (04:04 UTC)
- Expired
- Apr 14, 1986, 2:00 AM CST
- In force
- 4 hr
- Issued by
- NWS Aberdeen, SD
- Area
- Whole counties
Counties Codington County, SD, Deuel County, SD
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Aberdeen, SD (KHON), launched 00:00Z, 4.1 hours before the alert went out and 116 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
- 464 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 325 m²/s²
- 0-3 km storm-relative helicity
- 477 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFSD 140422 COR FFWHON SDC057-077-029-039-140800- BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED FLASH FLOOD WARNING...CORRECTED NATIONAL WEATHER SERVICE HURON SD ISSUED BY SIOUX FALLS SD 1020 PM CST SUN APR 13 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 200 AM CST FOR PEOPLE IN THE FOLLOWING COUNTIES OF EAST CENTRAL SOUTH DAKOTA...HAMLIN...KINGSBURY...CODINGTON AND DEUEL SOME OF THE CITIES INCLUDED IN THE FLASH FLOOD WARNING FOR EAST CENTRAL SOUTH DAKOTA INCLUDE WATERTOWN..CLEAR LAKE..HAYTI..AND DE SMET. FLASH FLOODING WAS REPORTED BY CIVIL DEFENSE PERSONEL IN NORTHERN HAMLIN COUNTY AND SOUTHERN CODINGTON COUNTIES AT 930 PM CST. THE GREATEST AMOUNT OF LOWLAND FLOODING WAS REPORTED BETWEEN WATERTOWN AND CASTLEWOOD WHERE NUMEROUS FIELDS WERE UNDER WATER AND RIVER LEVELS WERE RISING. 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. DO NOT ATTEMPT TO FORD INUNDATED ROADS. WHEN YOU ARE OUT OF IMMEDIATE DANGER TUNE IN AREA RADIO AND TELEVISION STATIONS FOR ADDITIONAL INFORMATION. KAPELA
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, Apr 13, 7:15 PM CST, 2 hours 49 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 715 PM CST SUN APR 13 1986 SNOW MOVED INTO THE NORTH CENTREL AND NORTHEAST PORTIONS OF SOUTH DAKOTA THIS AFTERNOON LEAVING BEHIND A VARIABLE AMOUNT OF SNOW. AS OF 7PM CST THE FOLLOWING PRECIPITATION AND VISIBILITY CONDITIONS EXIST OVER THIS PORTIONS OF SOUTH DAKOTA. AT MCINTOSH IN CORSON COUNTY THE SHERIFFS DEPARTMENT REPORTS ONE QUARTER MILE VISIBILITY IN SNOW AND A FRESH NEW DEPTH OF 3 INCHES. AT SELBY IN WALWORTH COUNTY THE SHERIFFS DEPARTMENT REPORTS VISIBILITY OF 300 TO 500 FEET IN SNOW WITH A NEW DEPTH OF 3 INCHES. AT GETTYSBURG IN POTTER COUNTY THE SHERIFF REPORTS NEARLY FOUR INCHES OF NEW SNOW WITH VISIBILITY OF 1 TO f2 MILES. AT IPSWICH IN EDMUNDS COUNTY 21/2 INCHES OF NEW SNOW. TEN MILES EAST OF HOSMER IN EDMUNDS COUNTY 3 TO 4 INCHES OF SNOW. AT REDFIELD IN SPINK COUNTY ONE INCH OF NEW SNOW WITH ALOT OF RAIN. STUDNICKA
Special weather statement, Apr 13, 8:16 PM CST, 1 hour 48 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ABERDEEN SD 815 PM CST SUN APR 13 1986 AT 8PM CST 4.7 INCHES OF NEW SNOW HAS BEEN RECORDED AT THE NATIONAL WEATHER SERVICE OFFICE AT ABERDEEN WITH A REPORT OF 5 INCHES 12 MILES WEST OF WARNER SOUTHWEST OF ABERDEEN. AT THIS TIME THE BROWN COUNTY SHERIFF HAS RECOMMENDED NO TRAVEL IN AND AROUND BROWN COUNTY DUE TO THE NEW SNOW FALL AND ADDITIONAL SNOW THAT IS EXPECTED DURING THE REMAINDER OF THE NIGHT AND ON MONDAY. CURRENT ROAD CONDITIONS AROUND ABERDEEN IS SLICK TO SAY THE LEAST. NUMEROUS TRAFFIC ACCIDENTS HAVE BEEN RECORDED WITH SEVERAL PERSONS ENDING UP IN DITCHES ALONG THE COUNTY ROADS. STUDNICKA
The office that day
Everything else NWS Aberdeen, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 10:04 PM CST | Flash Flood Warning | ABR | Hamlin, Kingsbury | 4 hr |
| Apr 14, 1:55 AM CST | Flash Flood Warning | ABR | Codington, Deuel, Hamlin | 4 hr |
| Apr 14, 1:55 AM CST | Flash Flood Warning | ABR | Kingsbury | 4 hr |
Nearby
Flash Flood Warnings in South Dakota, 1986Every flash flood warning in 1986
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.