Alert archive / South Dakota / Red Flag Warnings in 2023

Red Flag Warning 1, NWS Aberdeen, SD

April 10, 2023Buffalo County, Jones County, Lyman County, South Dakota

NWS Aberdeen, SD issued this red flag warning at Apr 10, 2023, 2:58 PM CDT for Buffalo County, Jones County, Lyman County, South Dakota. It took effect at Apr 11, 2023, 12:00 PM CDT. It was in force for 9 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
Apr 10, 2023, 2:58 PM CDT (19:58 UTC)
In effect from
Apr 11, 2023, 12:00 PM CDT
Expired
Apr 11, 2023, 9:00 PM CDT
In force
9 hr
Issued by
NWS Aberdeen, SD

Counties Buffalo County, SD, Jones County, SD, Lyman County, SD

The radar

The Aberdeen radar (KABR), 203 km from the middle of the area, began a volume at 19:57 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 12:00Z, 8.0 hours before the alert went out and 158 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 2023-04-10Temperature 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 12:00Z on 2023-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.1939587897Sfc1 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
2366 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
167 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 10, 2:49 AM CDTRiver Flood WarningABRHamlin25 days
Apr 10, 8:47 AM CDTRiver Flood WarningABRCodington21 days
Apr 10, 5:00 PM CDTRiver Flood WarningABRCodington18 hr

Nearby

Red Flag Warnings in South Dakota, 2023Every red flag warning in 2023

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.