Alert archive / South Dakota / Flash Flood Warnings in 1991

Flash Flood Warning 5, NWS Aberdeen, SD

June 4, 19914 counties in South Dakota

NWS Aberdeen, SD issued this flash flood warning at Jun 4, 1991, 3:19 PM CDT for 4 counties in South Dakota. It was in force for 116 min.

The area

The counties it named.

The facts

Issued
Jun 4, 1991, 3:19 PM CDT (20:19 UTC)
Expired
Jun 4, 1991, 5:15 PM CDT
In force
116 min
Issued by
NWS Aberdeen, SD
Area
Whole counties

Counties Hughes County, SD, Lyman County, SD, Stanley County, SD, Sully County, SD

The nearest sounding before it

Aberdeen, SD (KHON), launched 12:00Z, 8.3 hours before the alert went out and 153 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 12:00Z on 1991-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 234 joules per kilogram.LCLLFCEL10008507005003002001001 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 12:00Z on 1991-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 138 square meters per square second.19395878Sfc1 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
234 J/kg
Mixed-layer CIN
-83 J/kg
Mixed-layer LCL
729 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
138 m²/s²
0-3 km storm-relative helicity
104 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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.

The office that day

Everything else NWS Aberdeen, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 3, 7:07 PM CDTFlash Flood WarningABRHamlin2 hr
Jun 3, 11:55 PM CDTFlash Flood WarningABRStanley2 hr
Jun 4, 2:56 PM CDTSevere Thunderstorm WarningABRBeadle, Sanborn64 min
Jun 4, 3:49 PM CDTSevere Thunderstorm WarningABRSpink40 min
Jun 4, 4:52 PM CDTFlash Flood WarningABRHughes, Lyman, Sully2 hr

Nearby

Flash Flood Warnings in South Dakota, 1991Every flash flood warning in 1991

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.