Alert archive / Kansas / Mesoscale Discussions in 2004

Mesoscale Discussion 1693

July 15, 20044 states

The Storm Prediction Center issued this mesoscale discussion at Jul 15, 2004, 4:04 PM MDT for 4 states. It was in force for 86 min.

The area

The outline as issued.

The facts

Issued
Jul 15, 2004, 4:04 PM MDT (22:04 UTC)
Expired
Jul 15, 2004, 5:30 PM MDT
In force
86 min
Issued by
the Storm Prediction Center
All 32 counties

Kit Carson County, CO, Phillips County, CO, Washington County, CO, Yuma County, CO, Barber County, KS, Cheyenne County, KS, Clark County, KS, Comanche County, KS, Edwards County, KS, Finney County, KS, Ford County, KS, Gove County, KS, Gray County, KS, Harper County, KS, Hodgeman County, KS, Kiowa County, KS, Lane County, KS, Logan County, KS, Ness County, KS, Pawnee County, KS, Pratt County, KS, Rawlins County, KS, Scott County, KS, Sherman County, KS, Thomas County, KS, Wallace County, KS, Wichita County, KS, Dundy County, NE, Alfalfa County, OK, Grant County, OK, Harper County, OK, Woods County, OK

The radar

The Goodland radar (KGLD), 75 km from the middle of the area, began a volume at 22:04 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.

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, 10.1 hours before the alert went out and 166 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 2004-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1099 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 2004-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 square meters per square second.1939Sfc1 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
1099 J/kg
Mixed-layer CIN
-131 J/kg
Mixed-layer LCL
1856 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
96 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

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 14, 6:49 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Broomfield, Denver, Douglas, Elbert and 8 more86 min
Jul 15, 1:53 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Boulder, Broomfield, Cheyenne, Denver and 13 more3 hr
Jul 15, 5:25 PM MDTSevere Thunderstorm WatchSPCPhillips, Sedgwick, Yuma7 hr
Jul 15, 8:32 AM MDTMesoscale DiscussionSPCDakota, Dixon118 min
Jul 15, 10:55 AM MDTMesoscale DiscussionSPCAntelope, Boyd, Burt, Butler, Cass, Cedar and 26 more2 hr
Jul 15, 1:03 PM MDTMesoscale DiscussionSPCAntelope, Blaine, Boone, Boyd, Brown, Cedar and 22 more2 hr
Jul 15, 2:00 PM MDTTornado WatchSPCAntelope, Boone, Boyd, Buffalo, Butler, Cedar and 23 more6 hr
Jul 15, 5:08 PM MDTMesoscale DiscussionSPCChase, Dawson, Dundy, Frontier, Furnas, Gosper and 4 more97 min
Jul 15, 12:12 PM MDTMesoscale DiscussionSPCAdair, Cherokee, LeFlore, Sequoyah2 hr
Jul 15, 3:45 PM MDTSevere Thunderstorm WatchSPCAdair, LeFlore, Sequoyah6 hr

Nearby

Mesoscale Discussions in Kansas, 2004Mesoscale Discussions in Colorado, 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.