Alert archive / South Dakota / Red Flag Warnings in 2022

Red Flag Warning 8, NWS Aberdeen, SD

April 4, 202210 counties in South Dakota

NWS Aberdeen, SD issued this red flag warning at Apr 4, 2022, 3:02 PM CDT for 10 counties in South Dakota. It took effect at Apr 5, 2022, 1:00 PM CDT. It was in force for 2 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 4, 2022, 3:02 PM CDT (20:02 UTC)
In effect from: Apr 5, 2022, 1:00 PM CDT
Expired: Apr 5, 2022, 3:08 PM CDT
In force: 2 hr
Issued by: NWS Aberdeen, SD

Counties Buffalo County, SD, Dewey County, SD, Hand County, SD, Hughes County, SD, Hyde County, SD, Jones County, SD, Lyman County, SD, Potter County, SD, Stanley County, SD, Sully County, SD

The radar

The Aberdeen radar (KABR), 165 km from the middle of the area, began a volume at 20:06 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 134 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 514 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 26 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Aberdeen, SD wrote its last area forecast discussion before this red flag warning went out at Apr 4, 12:28 PM CDT, 2 hours 34 minutes earlier.

Area forecast discussion, Apr 4, 12:28 PM CDT, 2 hours 34 minutes before

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Hazardous weather outlook, Apr 4, 3:12 AM CDT, 11 hours 50 minutes before

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In the hours before

Special weather statement, Apr 4, 10:00 AM CDT, 5 hours 2 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 10:16 PM CDT	Fire Weather Watch	ABR	Jones, Lyman, Stanley	5 hr
Apr 4, 2:57 AM CDT	Red Flag Warning	ABR	Jones, Lyman, Stanley	18 hr
Apr 4, 2:59 PM CDT	High Wind Watch	ABR	Brown, Buffalo, Campbell, Clark, Codington, Corson and 20 more	29 hr

Nearby

Red Flag Warnings in South Dakota, 2022 Every red flag warning in 2022

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.