Alert archive / Kansas / Mesoscale Discussions in 2004

Mesoscale Discussion 1702

July 15, 2004Phillips County, Sedgwick County, Yuma County, Colorado; 16 counties in Kansas; 13 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Jul 15, 2004, 9:00 PM MDT for Phillips County, Sedgwick County, Yuma County, Colorado; 16 counties in Kansas; 13 counties in Nebraska. It was in force for 90 min.

The area

The outline as issued.

The facts

Issued
Jul 15, 2004, 9:00 PM MDT (03:00 UTC)
Expired
Jul 15, 2004, 10:30 PM MDT
In force
90 min
Issued by
the Storm Prediction Center
All 32 counties

Phillips County, CO, Sedgwick County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Graham County, KS, Jewell County, KS, Lincoln County, KS, Mitchell County, KS, Norton County, KS, Osborne County, KS, Phillips County, KS, Rawlins County, KS, Rooks County, KS, Russell County, KS, Sheridan County, KS, Sherman County, KS, Smith County, KS, Thomas County, KS, Chase County, NE, Dundy County, NE, Franklin County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Nuckolls County, NE, Phelps County, NE, Red Willow County, NE, Webster County, NE

The radar

The Goodland radar (KGLD), 111 km from the middle of the area, began a volume at 03:03 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, 3.0 hours before the alert went out and 114 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 2004-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 946 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 2004-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 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
946 J/kg
Mixed-layer CIN
-56 J/kg
Mixed-layer LCL
2355 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
12 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

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 16, 4:01 PM MDTMesoscale DiscussionSPCAdams, Alamosa, Arapahoe, Broomfield, Conejos, Costilla and 12 more2 hr
Jul 15, 10:34 PM MDTMesoscale DiscussionSPCAtchison, Brown, Doniphan, Douglas, Franklin, Jackson and 9 more86 min
Jul 16, 2:33 AM MDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Brown, Coffey and 18 more117 min
Jul 15, 6:53 PM MDTMesoscale DiscussionSPCAntelope, Boone, Boyd, Buffalo, Butler, Cedar and 23 more67 min

Nearby

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