Alert archive / Kansas / Mesoscale Discussions in 2004

Mesoscale Discussion 1503

July 4, 200416 counties in Kansas; 6 counties in Oklahoma; 8 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jul 4, 2004, 3:21 PM CDT for 16 counties in Kansas; 6 counties in Oklahoma; 8 counties in Texas. It was in force for 84 min.

The area

The outline as issued.

The facts

Issued
Jul 4, 2004, 3:21 PM CDT (20:21 UTC)
Expired
Jul 4, 2004, 4:45 PM CDT
In force
84 min
Issued by
the Storm Prediction Center
All 30 counties

Barber County, KS, Barton County, KS, Clark County, KS, Comanche County, KS, Edwards County, KS, Ford County, KS, Gray County, KS, Hodgeman County, KS, Kiowa County, KS, Meade County, KS, Ness County, KS, Pawnee County, KS, Pratt County, KS, Rush County, KS, Seward County, KS, Stafford County, KS, Beaver County, OK, Ellis County, OK, Harper County, OK, Roger Mills County, OK, Woods County, OK, Woodward County, OK, Carson County, TX, Donley County, TX, Gray County, TX, Hemphill County, TX, Lipscomb County, TX, Ochiltree County, TX, Roberts County, TX, Wheeler County, TX

The radar

The Dodge City radar (KDDC), 92 km from the middle of the area, began a volume at 20:26 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

Dodge City, (KDDC), launched 12:00Z, 8.4 hours before the alert went out and 95 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, Dodge City, at 12:00Z on 2004-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1444 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, Dodge City, at 12:00Z on 2004-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 square meters per square second.193958Sfc1 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
1444 J/kg
Mixed-layer CIN
-353 J/kg
Mixed-layer LCL
1275 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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
Jul 3, 9:41 PM CDTMesoscale DiscussionSPCClay, Cloud, Ellis, Gove, Graham, Jewell and 14 more64 min
Jul 3, 10:10 PM CDTSevere Thunderstorm WatchSPCAtchison, Brown, Chase, Clay, Cloud, Coffey and 20 more6 hr
Jul 3, 10:25 PM CDTSevere Thunderstorm WatchSPCBarton, Dickinson, Ellis, Ellsworth, Geary, Gove and 17 more6 hr
Jul 4, 1:45 AM CDTMesoscale DiscussionSPCAtchison, Barton, Brown, Chase, Clay, Coffey and 31 more90 min
Jul 4, 2:55 AM CDTSevere Thunderstorm WatchSPCAllen, Anderson, Barber, Barton, Butler, Chase and 40 more5 hr
Jul 4, 5:05 AM CDTSevere Thunderstorm WatchSPCBourbon, Chautauqua, Cherokee, Crawford, Labette, Montgomery and 1 more5 hr
Jul 4, 6:08 AM CDTMesoscale DiscussionSPCBourbon, Cherokee, Crawford, Labette, Montgomery, Neosho2 hr
Jul 4, 6:09 AM CDTMesoscale DiscussionSPCBourbon, Cherokee, Crawford, Labette, Montgomery, Neosho2 hr
Jul 4, 2:15 PM CDTSevere Thunderstorm WatchSPCCheyenne, Decatur, Gove, Grant, Greeley, Hamilton and 12 more8 hr
Jul 4, 3:40 PM CDTSevere Thunderstorm WatchSPCBarber, Barton, Clark, Comanche, Edwards, Ellis and 16 more6 hr
Jul 4, 5:24 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Finney, Gove, Grant, Greeley and 16 more96 min
Jul 4, 1:25 PM CDTMesoscale DiscussionSPCAdair, Cherokee, Creek, Delaware, Haskell, McIntosh and 9 more2 hr

Nearby

Mesoscale Discussions in Kansas, 2004Mesoscale Discussions in Texas, 2004Mesoscale Discussions in Oklahoma, 2004Every 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.