Alert archive / Kansas / Mesoscale Discussions in 2004

Mesoscale Discussion 972

May 29, 200420 counties in Kansas; 16 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at May 29, 2004, 1:02 PM CDT for 20 counties in Kansas; 16 counties in Nebraska. It was in force for 118 min.

The area

The outline as issued.

The facts

Issued: May 29, 2004, 1:02 PM CDT (18:02 UTC)
Expired: May 29, 2004, 3:00 PM CDT
In force: 118 min
Issued by: the Storm Prediction Center

All 36 counties

Clay County, KS, Cloud County, KS, Dickinson County, KS, Ellsworth County, KS, Graham County, KS, Jewell County, KS, Lincoln County, KS, Marshall County, KS, Mitchell County, KS, Norton County, KS, Osborne County, KS, Ottawa County, KS, Phillips County, KS, Republic County, KS, Riley County, KS, Rooks County, KS, Russell County, KS, Saline County, KS, Smith County, KS, Washington County, KS, Adams County, NE, Clay County, NE, Fillmore County, NE, Franklin County, NE, Gage County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Jefferson County, NE, Kearney County, NE, Nuckolls County, NE, Phelps County, NE, Saline County, NE, Thayer County, NE, Webster County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 52 km from the middle of the area, began a volume at 18:02 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 6.0 hours before the alert went out and 227 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: 192 J/kg
Mixed-layer CIN: -656 J/kg
Mixed-layer LCL: 1769 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 342 m²/s²
0-3 km storm-relative helicity: 362 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

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

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 29, 1:54 PM CDT	Mesoscale Discussion	SPC	Cheyenne, Decatur, Greeley, Logan, Rawlins, Sherman and 2 more	3 hr
May 29, 2:55 PM CDT	Tornado Watch	SPC	Barber, Barton, Butler, Chase, Clark, Comanche and 20 more	7 hr
May 29, 3:05 PM CDT	Tornado Watch	SPC	Brown, Clay, Cloud, Dickinson, Ellis, Ellsworth and 24 more	7 hr
May 29, 3:55 PM CDT	Severe Thunderstorm Watch	SPC	Cheyenne, Decatur, Gove, Greeley, Lane, Logan and 8 more	6 hr
May 29, 4:35 PM CDT	Tornado Watch	SPC	Anderson, Atchison, Doniphan, Douglas, Franklin, Jefferson and 5 more	5 hr
May 29, 4:57 PM CDT	Mesoscale Discussion	SPC	Barber, Harper, Harvey, Kingman, Pratt, Reno and 3 more	63 min
May 29, 5:16 PM CDT	Mesoscale Discussion	SPC	Cloud, Jewell, Mitchell, Republic, Washington	59 min
May 29, 5:53 PM CDT	Mesoscale Discussion	SPC	Decatur, Logan, Rawlins, Sheridan, Sherman, Thomas and 1 more	67 min
May 28, 7:31 PM CDT	Mesoscale Discussion	SPC	Antelope, Boone, Boyd, Burt, Cedar, Colfax and 20 more	89 min
May 28, 9:03 PM CDT	Mesoscale Discussion	SPC	Antelope, Boyd, Burt, Cedar, Colfax, Cuming and 12 more	57 min
May 28, 9:50 PM CDT	Severe Thunderstorm Watch	SPC	Dakota	5 hr
May 29, 12:42 PM CDT	Mesoscale Discussion	SPC	Cedar, Dakota, Dixon, Thurston	93 min
May 29, 2:05 PM CDT	Tornado Watch	SPC	Boyd, Cedar, Dakota, Dixon, Holt, Knox and 2 more	8 hr
May 29, 5:01 PM CDT	Mesoscale Discussion	SPC	Antelope, Boyd, Cedar, Dakota, Dixon, Holt and 3 more	119 min

Nearby

Mesoscale Discussions in Kansas, 2004 Mesoscale Discussions in Nebraska, 2004 Every mesoscale discussion in 2004

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.