Alert archive / South Dakota / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 145, NWS Aberdeen, SD

August 26, 1998Jones County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at Aug 26, 1998, 6:06 PM CDT for Jones County, South Dakota. It was in force for 64 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Aug 26, 1998, 6:06 PM CDT (23:06 UTC)
Expired: Aug 26, 1998, 7:10 PM CDT
In force: 64 min
Issued by: NWS Aberdeen, SD
Area: Whole counties

County Jones County, SD

What was reported inside it

Time	Report	Where	Remark
Aug 26, 6:42 PM CDT	Hail 0.75	Murdo, SD

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 26, 5:30 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 11.1 hours before the alert went out and 312 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: 611 J/kg
Mixed-layer CIN: -194 J/kg
Mixed-layer LCL: 1615 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 133 m²/s²
0-3 km storm-relative helicity: 161 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 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 26, 9:38 AM CDT, 8 hours 28 minutes earlier.

Area forecast discussion, Aug 26, 9:38 AM CDT, 8 hours 28 minutes before

AREA FORECAST DISCUSSION FOR CENTRAL/NORTH CENTRAL/NORTHEAST SD
AND FOR TRAVERSE/BIG STONE COUNTIES OF MN
NATIONAL WEATHER SERVICE ABERDEEN SD
938 AM CDT WED AUG 26 1998

ABR RADAR THIS MORNING SHOWING SOME SCT SHRAS AND TSRAS ACROSS NC SD
AND THESE SHOULD CONTINUE THROUGH THE AFTERNOON. C SD WILL ALSO SEE
SOME SHRAS AND TSRAS. RR QUAD OF JET AND WAA LOOK TO BE RESPONSIBLE FOR
THE CLOUDS AND PRECIP. 12Z RUC MODEL SHOWING THE INSTABILITY REMAINING
ACROSS C AND NC SD THROUGH THE AFTERNOON AND ALSO SHOWING SOME FAIRLY
STRONG SOUTH WINDS BY 21Z. THEREFORE...WILL UPDATE ALL SD ZONES TO
INCREASE CLOUDS AND WINDS AND INCREASE POPS AND LOWER TEMPS ACROSS THE
C AND NC.

.ABR...NONE.

MOHR

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 26, 5:06 PM CDT	Severe Thunderstorm Warning	ABR	Jones	64 min
Aug 26, 6:43 PM CDT	Severe Thunderstorm Warning	ABR	Walworth	62 min
Aug 26, 6:52 PM CDT	Severe Thunderstorm Warning	ABR	Dewey	63 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1998 Every severe thunderstorm warning in 1998

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.