Alert archive / Nebraska / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 671

July 7, 20039 counties in Colorado; 9 counties in Kansas; 23 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at Jul 7, 2003, 5:00 PM MDT for 9 counties in Colorado; 9 counties in Kansas; 23 counties in Nebraska. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Jul 7, 2003, 5:00 PM MDT (23:00 UTC)
Expired: Jul 7, 2003, 11:00 PM MDT
In force: 6 hr
Issued by: the Storm Prediction Center

All 41 counties

Cheyenne County, CO, Kit Carson County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Gove County, KS, Logan County, KS, Rawlins County, KS, Sheridan County, KS, Sherman County, KS, Thomas County, KS, Wallace County, KS, Arthur County, NE, Banner County, NE, Box Butte County, NE, Chase County, NE, Cheyenne County, NE, Deuel County, NE, Dundy County, NE, Frontier County, NE, Garden County, NE, Grant County, NE, Hayes County, NE, Hitchcock County, NE, Hooker County, NE, Keith County, NE, Kimball County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Morrill County, NE, Perkins County, NE, Red Willow County, NE, Scotts Bluff County, NE, Thomas County, NE

The radar

The Goodland radar (KGLD), 184 km from the middle of the area, began a volume at 23:04 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

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

Issued	Product	Office	Counties	Lasted
Jul 7, 5:28 PM MDT	Tornado Warning	BOU	Morgan, Washington	47 min
Jul 7, 5:39 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	66 min
Jul 7, 5:42 PM MDT	Severe Thunderstorm Warning	BOU	Morgan	48 min
Jul 7, 5:43 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	62 min
Jul 7, 5:53 PM MDT	Tornado Warning	BOU	Morgan	52 min
Jul 7, 6:03 PM MDT	Severe Thunderstorm Warning	CYS	Cheyenne	27 min
Jul 7, 6:12 PM MDT	Severe Thunderstorm Warning	BOU	Logan	63 min
Jul 7, 6:30 PM MDT	Severe Thunderstorm Warning	CYS	Cheyenne	45 min
Jul 7, 6:41 PM MDT	Tornado Warning	BOU	Logan	49 min
Jul 7, 6:41 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	64 min
Jul 7, 6:44 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	61 min
Jul 7, 7:04 PM MDT	Severe Thunderstorm Warning	BOU	Logan, Phillips, Sedgwick	41 min
Jul 7, 7:12 PM MDT	Severe Thunderstorm Warning	GLD	Kit Carson	63 min
Jul 7, 7:12 PM MDT	Severe Thunderstorm Warning	CYS	Morrill	48 min
Jul 7, 7:37 PM MDT	Severe Thunderstorm Warning	GLD	Wallace	68 min
Jul 7, 7:38 PM MDT	Severe Thunderstorm Warning	BOU	Phillips, Sedgwick	52 min
Jul 7, 7:43 PM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	62 min
Jul 7, 7:47 PM MDT	Severe Thunderstorm Warning	GLD	Yuma	58 min
Jul 7, 8:03 PM MDT	Severe Thunderstorm Warning	LBF	Deuel, Garden	57 min
Jul 7, 8:08 PM MDT	Severe Thunderstorm Warning	LBF	Chase, Keith, Perkins	52 min
Jul 7, 8:15 PM MDT	Severe Thunderstorm Warning	GLD	Sherman, Thomas	60 min
Jul 7, 8:18 PM MDT	Severe Thunderstorm Warning	GLD	Dundy, Hitchcock	57 min
Jul 7, 8:34 PM MDT	Severe Thunderstorm Warning	LBF	Arthur	26 min
Jul 7, 8:46 PM MDT	Severe Thunderstorm Warning	GLD	Wallace	59 min
Jul 7, 8:51 PM MDT	Severe Thunderstorm Warning	LBF	Frontier, Hayes, Lincoln, McPherson	54 min
Jul 7, 9:15 PM MDT	Severe Thunderstorm Warning	GLD	Hitchcock, Red Willow	60 min
Jul 7, 9:46 PM MDT	Severe Thunderstorm Warning	GLD	Logan, Wallace	59 min
Jul 7, 9:48 PM MDT	Severe Thunderstorm Warning	LBF	Frontier, Lincoln	27 min
Jul 7, 9:50 PM MDT	Severe Thunderstorm Warning	LBF	Custer, Logan	55 min
Jul 7, 10:10 PM MDT	Severe Thunderstorm Warning	LBF	Hooker, Thomas	65 min
Jul 7, 10:16 PM MDT	Severe Thunderstorm Warning	GLD	Red Willow	59 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

Denver, CO (KDNR), launched 12:00Z, 11.0 hours before the alert went out and 123 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: 263 J/kg
Mixed-layer CIN: -561 J/kg
Mixed-layer LCL: 2421 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 32 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
Jul 7, 2:52 PM MDT	Mesoscale Discussion	SPC	Adams, Arapahoe, Crowley, Denver, Elbert, El Paso and 12 more	2 hr
Jul 6, 7:57 PM MDT	Mesoscale Discussion	SPC	Adams, Antelope, Boone, Buffalo, Burt, Butler and 44 more	3 hr
Jul 6, 8:20 PM MDT	Tornado Watch	SPC	Antelope, Boone, Burt, Butler, Cass, Cedar and 24 more	6 hr
Jul 6, 10:06 PM MDT	Mesoscale Discussion	SPC	Antelope, Boone, Burt, Butler, Cass, Cedar and 24 more	114 min
Jul 7, 3:16 PM MDT	Mesoscale Discussion	SPC	Adams, Arthur, Boone, Buffalo, Butler, Cass and 49 more	2 hr

Nearby

Severe Thunderstorm Watches in Nebraska, 2003 Severe Thunderstorm Watches in Colorado, 2003 Severe Thunderstorm Watches in Kansas, 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.