Alert archive / South Dakota / Flash Flood Warnings in 1986

Flash Flood Warning 4, NWS Aberdeen, SD

April 14, 1986Kingsbury County, South Dakota

NWS Aberdeen, SD issued this flash flood warning at Apr 14, 1986, 1:55 AM CST for Kingsbury County, South Dakota. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Apr 14, 1986, 1:55 AM CST (07:55 UTC)
Expired
Apr 14, 1986, 6:00 AM CST
In force
4 hr
Issued by
NWS Aberdeen, SD
Area
Whole counties

County Kingsbury 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, 7.9 hours before the alert went out and 93 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.

Skew-T log-pSkew-T log-p diagram, Aberdeen, SD at 00:00Z on 1986-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 00:00Z on 1986-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 325 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
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

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, 8:16 PM CST, 5 hours 39 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.

IssuedProductOfficeCountiesLasted
Apr 13, 10:04 PM CSTFlash Flood WarningABRHamlin, Kingsbury4 hr
Apr 13, 10:04 PM CSTFlash Flood WarningABRCodington, Deuel4 hr
Apr 14, 1:55 AM CSTFlash Flood WarningABRCodington, Deuel, Hamlin4 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.