Alert archive / Nebraska / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 228

May 3, 200347 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at May 3, 2003, 10:20 PM CDT for 47 counties in Nebraska. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: May 3, 2003, 10:20 PM CDT (03:20 UTC)
Expired: May 4, 2003, 4:00 AM CDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 47 counties

Adams County, NE, Antelope County, NE, Arthur County, NE, Blaine County, NE, Boone County, NE, Boyd County, NE, Brown County, NE, Buffalo County, NE, Chase County, NE, Cherry County, NE, Clay County, NE, Custer County, NE, Dawson County, NE, Fillmore County, NE, Frontier County, NE, Garfield County, NE, Gosper County, NE, Grant County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Hayes County, NE, Holt County, NE, Hooker County, NE, Howard County, NE, Kearney County, NE, Keith County, NE, Keya Paha County, NE, Knox County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, Madison County, NE, McPherson County, NE, Merrick County, NE, Nance County, NE, Perkins County, NE, Phelps County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Rock County, NE, Sherman County, NE, Thomas County, NE, Valley County, NE, Wheeler County, NE, York County, NE

The radar

The North Platte radar (KLNX), 109 km from the middle of the area, began a volume at 03:23 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.

Warnings issued inside it

14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
May 3, 10:58 PM CDT	Severe Thunderstorm Warning	LBF	McPherson	62 min
May 3, 11:13 PM CDT	Severe Thunderstorm Warning	LBF	Arthur	32 min
May 3, 11:18 PM CDT	Severe Thunderstorm Warning	LBF	Keith, Lincoln	57 min
May 4, 1:16 AM CDT	Severe Thunderstorm Warning	GID	Buffalo, Hall	44 min
May 4, 1:28 AM CDT	Severe Thunderstorm Warning	GID	Sherman	62 min
May 4, 1:30 AM CDT	Severe Thunderstorm Warning	GID	Sherman	30 min
May 4, 1:33 AM CDT	Severe Thunderstorm Warning	GID	Howard	27 min
May 4, 1:42 AM CDT	Severe Thunderstorm Warning	GID	Hamilton, Merrick	48 min
May 4, 1:49 AM CDT	Severe Thunderstorm Warning	GID	Valley	56 min
May 4, 1:57 AM CDT	Severe Thunderstorm Warning	GID	Greeley, Howard, Nance	63 min
May 4, 2:03 AM CDT	Tornado Warning	GID	Howard	42 min
May 4, 2:24 AM CDT	Severe Thunderstorm Warning	GID	Merrick	51 min
May 4, 2:29 AM CDT	Severe Thunderstorm Warning	GID	Polk	61 min
May 4, 2:43 AM CDT	Severe Thunderstorm Warning	OAX	Boone, Platte	47 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 3.3 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-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: 125 J/kg
Mixed-layer CIN: -302 J/kg
Mixed-layer LCL: 872 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 160 m²/s²
0-3 km storm-relative helicity: 254 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 3, 8:33 PM CDT	Mesoscale Discussion	SPC	Arthur, Box Butte, Chase, Cherry, Cheyenne, Deuel and 10 more	57 min
May 3, 9:42 PM CDT	Mesoscale Discussion	SPC	Adams, Arthur, Blaine, Brown, Buffalo, Chase and 33 more	33 min
May 3, 11:46 PM CDT	Mesoscale Discussion	SPC	Adams, Antelope, Arthur, Blaine, Boone, Brown and 68 more	59 min
May 4, 12:10 AM CDT	Severe Thunderstorm Watch	SPC	Burt, Butler, Cass, Colfax, Cuming, Dodge and 23 more	6 hr
May 4, 2:58 AM CDT	Mesoscale Discussion	SPC	Adams, Antelope, Boone, Buffalo, Burt, Butler and 46 more	92 min
May 4, 9:48 AM CDT	Mesoscale Discussion	SPC	Burt, Cass, Cedar, Cuming, Dakota, Dixon and 13 more	117 min
May 4, 11:40 AM CDT	Tornado Watch	SPC	Adams, Buffalo, Clay, Fillmore, Gage, Hall and 11 more	6 hr
May 4, 12:14 PM CDT	Mesoscale Discussion	SPC	Cass, Douglas, Gage, Johnson, Lancaster, Nemaha and 7 more	2 hr
May 4, 12:45 PM CDT	Tornado Watch	SPC	Cass, Douglas, Nemaha, Otoe, Richardson, Sarpy	6 hr
May 4, 1:55 PM CDT	Mesoscale Discussion	SPC	Clay, Fillmore, Gage, Hamilton, Lancaster, Saline and 2 more	2 hr
May 4, 2:22 PM CDT	Mesoscale Discussion	SPC	Cass, Douglas, Lancaster, Nemaha, Otoe, Richardson and 2 more	113 min

Nearby

Severe Thunderstorm Watches in Nebraska, 2003 Every severe thunderstorm watch 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.