Alert archive / Nebraska / Tornado Watches in 2003

Tornado Watch 575

June 23, 200316 counties in Nebraska

The Storm Prediction Center issued this tornado watch at Jun 23, 2003, 9:50 PM MDT for 16 counties in Nebraska. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 23, 2003, 9:50 PM MDT (03:50 UTC)
Expired
Jun 24, 2003, 3:00 AM MDT
In force
5 hr
Issued by
the Storm Prediction Center

Counties Arthur County, NE, Blaine County, NE, Chase County, NE, Custer County, NE, Dawson County, NE, Frontier County, NE, Gosper County, NE, Hayes County, NE, Hooker County, NE, Keith County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, McPherson County, NE, Perkins County, NE, Thomas County, NE

The radar

The North Platte radar (KLNX), 114 km from the middle of the area, began a volume at 03:51 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

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

IssuedProductOfficeCountiesLasted
Jun 23, 10:02 PM MDTSevere Thunderstorm WarningLBFCuster58 min
Jun 23, 10:09 PM MDTSevere Thunderstorm WarningLBFLoup36 min
Jun 23, 10:19 PM MDTSevere Thunderstorm WarningLBFLogan56 min
Jun 23, 10:27 PM MDTSevere Thunderstorm WarningLBFLincoln63 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, 3.8 hours before the alert went out and 34 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-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 00:00Z on 2003-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4886 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 00:00Z on 2003-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 149 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
4886 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
1084 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
149 m²/s²
0-3 km storm-relative helicity
351 m²/s²
Significant tornado parameter
7.9
Supercell composite
32.1

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 23, 7:17 PM MDTMesoscale DiscussionSPCAdams, Antelope, Boone, Buffalo, Butler, Clay and 37 more58 min
Jun 23, 7:20 PM MDTTornado WatchSPCAdams, Buffalo, Clay, Fillmore, Franklin, Furnas and 11 more3 hr
Jun 23, 7:34 PM MDTMesoscale DiscussionSPCCheyenne, Deuel, Kimball86 min
Jun 23, 7:55 PM MDTTornado WatchSPCBurt, Cass, Douglas, Gage, Jefferson, Johnson and 11 more4 hr
Jun 23, 8:10 PM MDTMesoscale DiscussionSPCBoyd65 min
Jun 23, 8:10 PM MDTTornado WatchSPCBanner, Box Butte, Cheyenne, Deuel, Garden, Kimball and 3 more4 hr
Jun 23, 9:38 PM MDTMesoscale DiscussionSPCCedar, Dakota, Dixon, Pierce, Wayne67 min
Jun 23, 9:50 PM MDTTornado WatchSPCAdams, Antelope, Boone, Buffalo, Butler, Cedar and 26 more5 hr
Jun 23, 10:08 PM MDTMesoscale DiscussionSPCBanner, Box Butte, Cheyenne, Garden, Grant, Kimball and 3 more67 min
Jun 23, 10:45 PM MDTSevere Thunderstorm WatchSPCBoyd, Brown, Cherry, Grant, Holt, Hooker and 3 more6 hr
Jun 23, 11:50 PM MDTSevere Thunderstorm WatchSPCBanner, Cheyenne, Deuel, Garden, Kimball, Morrill and 1 more3 hr
Jun 24, 12:52 AM MDTMesoscale DiscussionSPCAntelope, Blaine, Cedar, Dakota, Dixon, Garfield and 9 more53 min
Jun 24, 1:44 AM MDTMesoscale DiscussionSPCBoyd, Brown, Cherry, Grant, Holt, Hooker and 3 more2 hr
Jun 24, 10:43 AM MDTMesoscale DiscussionSPCCass, Douglas, Johnson, Nemaha, Otoe, Richardson and 2 more2 hr
Jun 24, 12:29 PM MDTMesoscale DiscussionSPCAntelope, Blaine, Boone, Boyd, Brown, Buffalo and 22 more3 hr
Jun 24, 1:15 PM MDTTornado WatchSPCAntelope, Blaine, Boyd, Brown, Cedar, Cherry and 18 more8 hr
Jun 24, 2:47 PM MDTMesoscale DiscussionSPCChase, Dundy, Hayes, Hitchcock88 min
Jun 24, 2:55 PM MDTSevere Thunderstorm WatchSPCChase, Dawson, Dundy, Frontier, Furnas, Gosper and 3 more6 hr
Jun 24, 2:56 PM MDTMesoscale DiscussionSPCNemaha, Richardson64 min
Jun 24, 4:59 PM MDTMesoscale DiscussionSPCAntelope, Blaine, Boyd, Brown, Cedar, Dixon and 11 more61 min
Jun 24, 5:30 PM MDTMesoscale DiscussionSPCBuffalo, Dawson, Dundy, Frontier, Furnas, Gosper and 7 more2 hr

Nearby

Tornado Watches in Nebraska, 2003Every tornado 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.