Alert archive / South Dakota / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 229, NWS Aberdeen, SD

August 2, 2022Buffalo County, Lyman County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 2, 2022, 6:17 PM CDT for Buffalo County, Lyman County, South Dakota. It was in force for 43 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 2, 2022, 6:17 PM CDT (23:17 UTC)
Expired
Aug 2, 2022, 7:00 PM CDT
In force
43 min
Issued by
NWS Aberdeen, SD
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Buffalo County, SD, Lyman County, SD

The radar

The Aberdeen radar (KABR), 186 km from the middle of the area, began a volume at 23:20 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, 11.3 hours before the alert went out and 135 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 2022-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 641 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 2022-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 139 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
641 J/kg
Mixed-layer CIN
-534 J/kg
Mixed-layer LCL
1582 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
139 m²/s²
0-3 km storm-relative helicity
108 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 severe thunderstorm 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 severe thunderstorm warning went out at Aug 2, 2:43 PM CDT, 3 hours 34 minutes earlier.

Area forecast discussion, Aug 2, 2:43 PM CDT, 3 hours 34 minutes before
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Hazardous weather outlook, Aug 2, 5:07 AM CDT, 13 hours 10 minutes before
Hazardous Weather Outlook
National Weather Service Aberdeen SD
507 AM CDT Tue Aug 2 2022

MNZ039-046-SDZ008-018-019-021>023-037-048-051-031015-
Traverse-Big Stone-Roberts-Spink-Clark-Grant-Hamlin-Deuel-Hand-Lyman-
Buffalo-
507 AM CDT Tue Aug 2 2022

This Hazardous Weather Outlook is for west central Minnesota,
central South Dakota and northeast South Dakota.

.DAY ONE...Today and tonight.

High humidity heat is expected today mainly throughout the James and
Big Sioux River valleys where heat index values could reach or
exceed 100 degrees. Much of the region west of the James River valley
is where low humidity heat is expected today, creating elevated fire
weather conditions this afternoon.

An isolated to widely scattered strong thunderstorm is possible late
tonight, mainly over portions of the Prairie Coteau of northeast
South Dakota into western Minnesota.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

The next best chance for thunderstorms shows up in the forecast
Friday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

SDZ003-015-031015-
Corson-Dewey-
407 AM MDT Tue Aug 2 2022

This Hazardous Weather Outlook is for north central South Dakota.

.DAY ONE...Today and tonight.

Low humidity heat and the strongest west winds are expected here
today, creating Red Flag fire weather conditions this afternoon.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

The next best chance for thunderstorms shows up in the forecast
Friday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

SDZ004>007-009>011-016-017-020-033>036-045-031015-
Campbell-McPherson-Brown-Marshall-Walworth-Edmunds-Day-Potter-Faulk-
Codington-Stanley-Sully-Hughes-Hyde-Jones-
507 AM CDT Tue Aug 2 2022 /407 AM MDT Tue Aug 2 2022/

This Hazardous Weather Outlook is for central South Dakota, north
central South Dakota and northeast South Dakota.

.DAY ONE...Today and tonight.

High humidity heat is expected today mainly throughout the James and
Big Sioux River valleys where heat index values could reach or
exceed 100 degrees. Much of the region west of the James River valley
is where low humidity heat is expected today, creating elevated fire
weather conditions this afternoon.

An isolated to widely scattered strong thunderstorm is possible late
tonight, mainly over portions of the Prairie Coteau of northeast
South Dakota into western Minnesota.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

The next best chance for thunderstorms shows up in the forecast
Friday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

Dorn

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 3:51 AM CDTHeat AdvisoryABRBuffalo, Clark, Deuel, Grant, Hamlin, Hand and 3 more17 hr
Aug 2, 4:00 AM CDTRed Flag WarningABRCorson, Dewey16 hr

Nearby

Severe Thunderstorm Warnings in South Dakota, 2022Every severe thunderstorm 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.