Alert archive / South Dakota / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 152, NWS Sioux Falls, SD

July 3, 2003McCook County, South Dakota

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 3, 2003, 10:55 PM CDT for McCook County, South Dakota. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 3, 2003, 10:55 PM CDT (03:55 UTC)
Expired: Jul 3, 2003, 11:30 PM CDT
In force: 35 min
Issued by: NWS Sioux Falls, SD
Area: Counties, with a storm outline in the text

County McCook County, SD

The radar

The Sioux Falls radar (KFSD), 58 km from the middle of the area, began a volume at 03:58 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jul 3, 9:40 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 3.9 hours before the alert went out and 156 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: 1927 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 1633 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 201 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

845 
WUUS53 KFSD 040355
SVRFSD
SDC087-040430-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1055 PM CDT THU JUL 3 2003

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MCCOOK COUNTY IN SOUTHEAST SOUTH DAKOTA

* UNTIL 1130 PM CDT

* AT 1055 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 10 MILES WEST OF SALEM TO 6 MILES
  SOUTH OF CANISTOTA...OR FROM 10 MILES WEST OF SALEM TO 6 MILES
  NORTH OF MARION...MOVING NORTHEAST AT 40 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  CANISTOTA AROUND 1100 PM CDT
  SALEM AROUND 1105 PM CDT
  MONTROSE AROUND 1110 PM CDT

DAMAGE WINDS WERE REPORTED WITH THIS STORM IN HANSON COUNTY. 

THIS STORM WILL PRODUCE DAMAGING WIND. GO INSIDE A STURDY BUILDING
AND STAY AWAY FROM WINDOWS.

LAT...LON 4368 9760 4352 9760 4352 9712 4381 9716
          4384 9755

$$

BOUSTEAD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 3, 9:54 PM CDT	Severe Thunderstorm Warning	FSD	Douglas	36 min
Jul 3, 10:16 PM CDT	Severe Thunderstorm Warning	FSD	Davison, Hutchinson	44 min
Jul 3, 10:21 PM CDT	Severe Thunderstorm Warning	FSD	Yankton	39 min
Jul 3, 10:25 PM CDT	Severe Thunderstorm Warning	FSD	Clay, Union	35 min
Jul 3, 10:40 PM CDT	Severe Thunderstorm Warning	FSD	Hanson	35 min
Jul 3, 10:46 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Turner	44 min
Jul 3, 11:08 PM CDT	Severe Thunderstorm Warning	FSD	Minnehaha	67 min
Jul 3, 11:45 PM CDT	Severe Thunderstorm Warning	FSD	Moody	45 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 2003 Every severe thunderstorm warning in 2003

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.