Alert archive / Nebraska / Mesoscale Discussions in 2003

Mesoscale Discussion 1281

June 9, 2003Boyd County, Holt County, Nebraska; Charles Mix County, Gregory County, South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 9, 2003, 8:13 PM CDT for Boyd County, Holt County, Nebraska; Charles Mix County, Gregory County, South Dakota. It was in force for 32 min.

The area

The outline as issued.

The facts

Issued
Jun 9, 2003, 8:13 PM CDT (01:13 UTC)
Expired
Jun 9, 2003, 8:45 PM CDT
In force
32 min
Issued by
the Storm Prediction Center

Counties Boyd County, NE, Holt County, NE, Charles Mix County, SD, Gregory County, SD

The radar

The North Platte radar (KLNX), 158 km from the middle of the area, began a volume at 01:17 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 nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.2 hours before the alert went out and 222 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 2003-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 301 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 2003-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 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
301 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
3407 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.9

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.

IssuedProductOfficeCountiesLasted
Jun 9, 7:23 PM CDTMesoscale DiscussionSPCAntelope, Boyd, Burt, Cedar, Cuming, Dakota and 7 more2 hr
Jun 9, 8:52 PM CDTMesoscale DiscussionSPCAntelope, Cedar, Cuming, Dakota, Dixon, Knox and 3 more113 min
Jun 9, 10:10 PM CDTSevere Thunderstorm WatchSPCAdams, Butler, Cass, Clay, Douglas, Fillmore and 22 more6 hr
Jun 9, 11:46 PM CDTMesoscale DiscussionSPCCass, Douglas, Fillmore, Gage, Jefferson, Johnson and 11 more119 min
Jun 10, 12:15 AM CDTSevere Thunderstorm WatchSPCNemaha, Richardson5 hr
Jun 10, 2:44 AM CDTMesoscale DiscussionSPCRichardson2 hr
Jun 10, 1:06 PM CDTMesoscale DiscussionSPCBanner, Cheyenne, Kimball114 min
Jun 10, 6:20 PM CDTMesoscale DiscussionSPCBanner, Box Butte, Chase, Cheyenne, Dawes, Deuel and 6 more2 hr
Jun 9, 8:03 PM CDTMesoscale DiscussionSPCBrown, Edmunds, Faulk, Spink57 min
Jun 9, 10:13 PM CDTMesoscale DiscussionSPCLincoln, Minnehaha, Turner, Yankton2 hr

Nearby

Mesoscale Discussions in Nebraska, 2003Mesoscale Discussions in South Dakota, 2003Every mesoscale discussion 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.